From 33a5f6261a61af28f7b4c86f9f958da0f206c914 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 11 Oct 2012 17:52:56 +0200 Subject: nohz: Add API to check tick state We need some quick way to check if the CPU has stopped its tick. This will be useful to implement the printk tick using the irq work subsystem. Signed-off-by: Frederic Weisbecker Acked-by: Steven Rostedt Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andrew Morton Cc: Paul Gortmaker --- include/linux/tick.h | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/tick.h b/include/linux/tick.h index f37fceb69b73..2307dd31b966 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -8,6 +8,8 @@ #include #include +#include +#include #ifdef CONFIG_GENERIC_CLOCKEVENTS @@ -122,13 +124,26 @@ static inline int tick_oneshot_mode_active(void) { return 0; } #endif /* !CONFIG_GENERIC_CLOCKEVENTS */ # ifdef CONFIG_NO_HZ +DECLARE_PER_CPU(struct tick_sched, tick_cpu_sched); + +static inline int tick_nohz_tick_stopped(void) +{ + return __this_cpu_read(tick_cpu_sched.tick_stopped); +} + extern void tick_nohz_idle_enter(void); extern void tick_nohz_idle_exit(void); extern void tick_nohz_irq_exit(void); extern ktime_t tick_nohz_get_sleep_length(void); extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time); extern u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time); -# else + +# else /* !CONFIG_NO_HZ */ +static inline int tick_nohz_tick_stopped(void) +{ + return 0; +} + static inline void tick_nohz_idle_enter(void) { } static inline void tick_nohz_idle_exit(void) { } -- cgit v1.2.3 From 00b42959106a9ca1c2899e591ae4e9a83ad6af05 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Wed, 7 Nov 2012 21:03:07 +0100 Subject: irq_work: Don't stop the tick with pending works Don't stop the tick if we have pending irq works on the queue, otherwise if the arch can't raise self-IPIs, we may not find an opportunity to execute the pending works for a while. Signed-off-by: Frederic Weisbecker Acked-by: Steven Rostedt Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andrew Morton Cc: Paul Gortmaker --- include/linux/irq_work.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h index 6a9e8f5399e2..a69704f37204 100644 --- a/include/linux/irq_work.h +++ b/include/linux/irq_work.h @@ -20,4 +20,10 @@ bool irq_work_queue(struct irq_work *work); void irq_work_run(void); void irq_work_sync(struct irq_work *work); +#ifdef CONFIG_IRQ_WORK +bool irq_work_needs_cpu(void); +#else +static bool irq_work_needs_cpu(void) { return false; } +#endif + #endif /* _LINUX_IRQ_WORK_H */ -- cgit v1.2.3 From bc6679aef673f9dcb8f718528fc3df49ff661af9 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 19 Oct 2012 16:43:41 -0400 Subject: irq_work: Make self-IPIs optable On irq work initialization, let the user choose to define it as "lazy" or not. "Lazy" means that we don't want to send an IPI (provided the arch can anyway) when we enqueue this work but we rather prefer to wait for the next timer tick to execute our work if possible. This is going to be a benefit for non-urgent enqueuers (like printk in the future) that may prefer not to raise an IPI storm in case of frequent enqueuing on short periods of time. Signed-off-by: Frederic Weisbecker Acked-by: Steven Rostedt Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andrew Morton Cc: Paul Gortmaker --- include/linux/irq_work.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h index a69704f37204..b28eb60c8bf6 100644 --- a/include/linux/irq_work.h +++ b/include/linux/irq_work.h @@ -3,6 +3,20 @@ #include +/* + * An entry can be in one of four states: + * + * free NULL, 0 -> {claimed} : free to be used + * claimed NULL, 3 -> {pending} : claimed to be enqueued + * pending next, 3 -> {busy} : queued, pending callback + * busy NULL, 2 -> {free, claimed} : callback in progress, can be claimed + */ + +#define IRQ_WORK_PENDING 1UL +#define IRQ_WORK_BUSY 2UL +#define IRQ_WORK_FLAGS 3UL +#define IRQ_WORK_LAZY 4UL /* Doesn't want IPI, wait for tick */ + struct irq_work { unsigned long flags; struct llist_node llnode; -- cgit v1.2.3 From 74876a98a87a115254b3a66a14b27320b7f0acaa Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 12 Oct 2012 18:00:23 +0200 Subject: printk: Wake up klogd using irq_work klogd is woken up asynchronously from the tick in order to do it safely. However if printk is called when the tick is stopped, the reader won't be woken up until the next interrupt, which might not fire for a while. As a result, the user may miss some message. To fix this, lets implement the printk tick using a lazy irq work. This subsystem takes care of the timer tick state and can fix up accordingly. Signed-off-by: Frederic Weisbecker Acked-by: Steven Rostedt Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Andrew Morton Cc: Paul Gortmaker --- include/linux/printk.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/printk.h b/include/linux/printk.h index 9afc01e5a0a6..86c4b6294713 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -98,9 +98,6 @@ int no_printk(const char *fmt, ...) extern asmlinkage __printf(1, 2) void early_printk(const char *fmt, ...); -extern int printk_needs_cpu(int cpu); -extern void printk_tick(void); - #ifdef CONFIG_PRINTK asmlinkage __printf(5, 0) int vprintk_emit(int facility, int level, -- cgit v1.2.3 From b0284de05e07d56ff7de154d0c9263788755f5eb Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 30 Nov 2012 10:09:42 +0000 Subject: ab8500_bm: Rename battery management platform data to something more logical The platform specific battery management configuration data structure is currently called 'bat' short for 'battery'; however, it contains information for all components of the battery management group, rather than information pertaining to the battery itself - there are other structures for that. So, in keeping with its structure namesake 'abx500_bm_data', we rename it to 'bm' here. Using similar logic, we're also renaming 'bmdevs_of_probe' to the more device specific 'ab8500_bm_of_probe'. Signed-off-by: Lee Jones --- include/linux/mfd/abx500.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 2138bd33021a..6ce749a0e9d4 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -279,9 +279,9 @@ enum { NTC_INTERNAL, }; -int bmdevs_of_probe(struct device *dev, - struct device_node *np, - struct abx500_bm_data **battery); +int ab8500_bm_of_probe(struct device *dev, + struct device_node *np, + struct abx500_bm_data **battery); int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg, u8 value); -- cgit v1.2.3 From 23a04f9f40f2b32ee593b768483105b1c776814d Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 29 Nov 2012 15:08:41 +0000 Subject: ab8500_bm: Always send platform specific battery information via pdata Currently the AB8500 battery management subsystem receives platform specific information via two different means depending on how the platform is booted. If DT is not enabled, a reference to a *_bm_data data structure containing each platform specific attribute is passed though platform_data. However, if DT is enabled, then platform_data is empty and the reference is gained though a DT specific probe function. There are two issues here 1) the same reference is being collected each time and 2) the DT way doesn't allow any provisions to select different platform specific attributes, which kind of defeats the object. Cc: Samuel Ortiz Signed-off-by: Lee Jones --- include/linux/mfd/abx500.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 6ce749a0e9d4..4906b1842d2f 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -281,7 +281,7 @@ enum { int ab8500_bm_of_probe(struct device *dev, struct device_node *np, - struct abx500_bm_data **battery); + struct abx500_bm_data *bm); int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg, u8 value); -- cgit v1.2.3 From b59320cc5a5e6ceaa17f0895ffbe0711ebad7adf Mon Sep 17 00:00:00 2001 From: Daniel Jeong Date: Mon, 17 Dec 2012 10:24:06 +0900 Subject: regulator: lp8755: new driver for LP8755 This patch is for new lp8755 regulator dirver and several unsed variables were deleted and then test was done. LP8755 : The LP8755 is a high performance power management unit.It contains six step-down DC-DC converters which can can be filexibly bundled together in multiphase converters as required by application. www.ti.com Signed-off-by: Daniel Jeong Signed-off-by: Mark Brown --- include/linux/platform_data/lp8755.h | 71 ++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 include/linux/platform_data/lp8755.h (limited to 'include/linux') diff --git a/include/linux/platform_data/lp8755.h b/include/linux/platform_data/lp8755.h new file mode 100644 index 000000000000..a7fd0776c9bf --- /dev/null +++ b/include/linux/platform_data/lp8755.h @@ -0,0 +1,71 @@ +/* + * LP8755 High Performance Power Management Unit Driver:System Interface Driver + * + * Copyright (C) 2012 Texas Instruments + * + * Author: Daniel(Geon Si) Jeong + * G.Shark Jeong + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef _LP8755_H +#define _LP8755_H + +#include + +#define LP8755_NAME "lp8755-regulator" +/* + *PWR FAULT : power fault detected + *OCP : over current protect activated + *OVP : over voltage protect activated + *TEMP_WARN : thermal warning + *TEMP_SHDN : thermal shutdonw detected + *I_LOAD : current measured + */ +#define LP8755_EVENT_PWR_FAULT REGULATOR_EVENT_FAIL +#define LP8755_EVENT_OCP REGULATOR_EVENT_OVER_CURRENT +#define LP8755_EVENT_OVP 0x10000 +#define LP8755_EVENT_TEMP_WARN 0x2000 +#define LP8755_EVENT_TEMP_SHDN REGULATOR_EVENT_OVER_TEMP +#define LP8755_EVENT_I_LOAD 0x40000 + +enum lp8755_bucks { + LP8755_BUCK0 = 0, + LP8755_BUCK1, + LP8755_BUCK2, + LP8755_BUCK3, + LP8755_BUCK4, + LP8755_BUCK5, + LP8755_BUCK_MAX, +}; + +/** + * multiphase configuration options + */ +enum lp8755_mphase_config { + MPHASE_CONF0, + MPHASE_CONF1, + MPHASE_CONF2, + MPHASE_CONF3, + MPHASE_CONF4, + MPHASE_CONF5, + MPHASE_CONF6, + MPHASE_CONF7, + MPHASE_CONF8, + MPHASE_CONF_MAX +}; + +/** + * struct lp8755_platform_data + * @mphase_type : Multiphase Switcher Configurations. + * @buck_data : buck0~6 init voltage in uV + */ +struct lp8755_platform_data { + int mphase; + struct regulator_init_data *buck_data[LP8755_BUCK_MAX]; +}; +#endif -- cgit v1.2.3 From c8520b4c5d25eb7b8b54f1ae9ba7da71375f2b2c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 18 Dec 2012 09:30:10 +0800 Subject: regulator: core: Allow specify apply_[reg|bit] for regmap based voltage_sel operations Some DVM regulators needs to update apply_bit after setting vsel_reg to initiate voltage change on the output. This patch adds apply_reg and apply_bit to struct regulator_desc and update regulator_set_voltage_sel_regmap() to set apply_bit of apply_reg when apply_bit is set. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- include/linux/regulator/driver.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index d10bb0f39c5e..23070fd83872 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -193,6 +193,10 @@ enum regulator_type { * * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_ * @vsel_mask: Mask for register bitfield used for selector + * @apply_reg: Register for initiate voltage change on the output when + * using regulator_set_voltage_sel_regmap + * @apply_bit: Register bitfield used for initiate voltage change on the + * output when using regulator_set_voltage_sel_regmap * @enable_reg: Register for control when using regmap enable/disable ops * @enable_mask: Mask for control when using regmap enable/disable ops * @@ -218,6 +222,8 @@ struct regulator_desc { unsigned int vsel_reg; unsigned int vsel_mask; + unsigned int apply_reg; + unsigned int apply_bit; unsigned int enable_reg; unsigned int enable_mask; unsigned int bypass_reg; -- cgit v1.2.3 From 176eb8dc91bd91e7b1beb1761ee29f016e8c09e8 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 24 Dec 2012 09:49:55 -0800 Subject: Input: adxl34x - make platform_data include self contained Since it suggests to use defines from input.h (ABS_X, ...), also include the file to make them available. Signed-off-by: Wolfram Sang Acked-by: Michael Hennerich Signed-off-by: Dmitry Torokhov --- include/linux/input/adxl34x.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/input/adxl34x.h b/include/linux/input/adxl34x.h index 57e01a7cb006..010d98175efa 100644 --- a/include/linux/input/adxl34x.h +++ b/include/linux/input/adxl34x.h @@ -13,6 +13,8 @@ #ifndef __LINUX_INPUT_ADXL34X_H__ #define __LINUX_INPUT_ADXL34X_H__ +#include + struct adxl34x_platform_data { /* -- cgit v1.2.3 From 4bf84c35c65f36a344fb7a6cde6274df4120efb8 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 27 Dec 2012 23:49:37 +0000 Subject: net: add change_carrier netdev op This allows a driver to register change_carrier callback which will be called whenever user will like to change carrier state. This is useful for devices like dummy, gre, team and so on. Signed-off-by: Jiri Pirko Acked-by: Flavio Leitner Signed-off-by: David S. Miller --- include/linux/netdevice.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c599e4782d45..0e1b92a0c1ec 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -891,6 +891,14 @@ struct netdev_fcoe_hbainfo { * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh) * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, * struct net_device *dev) + * + * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier); + * Called to change device carrier. Soft-devices (like dummy, team, etc) + * which do not represent real hardware may define this to allow their + * userspace components to manage their virtual carrier state. Devices + * that determine carrier state from physical hardware properties (eg + * network cables) or protocol-dependent mechanisms (eg + * USB_CDC_NOTIFY_NETWORK_CONNECTION) should NOT implement this function. */ struct net_device_ops { int (*ndo_init)(struct net_device *dev); @@ -1008,6 +1016,8 @@ struct net_device_ops { int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev); + int (*ndo_change_carrier)(struct net_device *dev, + bool new_carrier); }; /* @@ -2194,6 +2204,8 @@ extern int dev_set_mtu(struct net_device *, int); extern void dev_set_group(struct net_device *, int); extern int dev_set_mac_address(struct net_device *, struct sockaddr *); +extern int dev_change_carrier(struct net_device *, + bool new_carrier); extern int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, struct netdev_queue *txq); -- cgit v1.2.3 From 2681128f0ced8aa4e66f221197e183cc16d244fe Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 29 Dec 2012 16:02:43 +0000 Subject: veth: reduce stat overhead veth stats are a bit bloated. There is no need to account transmit and receive stats, since they are absolutely symmetric. Also use a per device atomic64_t for the dropped counter, as it should never be used in fast path. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0e1b92a0c1ec..6835b5837f93 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1284,6 +1284,7 @@ struct net_device { struct pcpu_lstats __percpu *lstats; /* loopback stats */ struct pcpu_tstats __percpu *tstats; /* tunnel stats */ struct pcpu_dstats __percpu *dstats; /* dummy stats */ + struct pcpu_vstats __percpu *vstats; /* veth stats */ }; /* GARP */ struct garp_port __rcu *garp_port; -- cgit v1.2.3 From 2ac902ce17f9dfa0d4d1f0818be147b5d2515fb7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 19 Dec 2012 14:51:55 +0000 Subject: regmap: flat: Add flat cache type While for I2C and SPI devices the overhead of using rbtree for devices with only one block of registers is negligible the same isn't always going to be true for MMIO devices where the I/O costs are very much lower. Cater for these devices by adding a simple flat array type for them where the lookups are simple array accesses, taking us right back to the original ASoC cache implementation. Thanks to Magnus Damm for the discussion which prompted this. Signed-off-by: Mark Brown --- include/linux/regmap.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index b7e95bf942c9..390d879d473a 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -28,7 +28,8 @@ struct regmap_range_cfg; enum regcache_type { REGCACHE_NONE, REGCACHE_RBTREE, - REGCACHE_COMPRESSED + REGCACHE_COMPRESSED, + REGCACHE_FLAT, }; /** -- cgit v1.2.3 From 0f6dfcee2e081f47a3e97cb8984fb4d62217e6f7 Mon Sep 17 00:00:00 2001 From: Vladimir Kondratiev Date: Tue, 18 Dec 2012 09:55:33 +0200 Subject: wireless: more 'capability info' bits define bits for 'capability info', as in recent spec edition IEEE802.11-2012 Also, add mask for 2-bit field 'bss type', as it is in 802.11ad Signed-off-by: Vladimir Kondratiev Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index f0859cc73861..09879eb24380 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1311,16 +1311,21 @@ struct ieee80211_vht_operation { #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) #define WLAN_CAPABILITY_QOS (1<<9) #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) +#define WLAN_CAPABILITY_APSD (1<<11) +#define WLAN_CAPABILITY_RADIO_MEASURE (1<<12) #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) +#define WLAN_CAPABILITY_DEL_BACK (1<<14) +#define WLAN_CAPABILITY_IMM_BACK (1<<15) /* DMG (60gHz) 802.11ad */ /* type - bits 0..1 */ +#define WLAN_CAPABILITY_DMG_TYPE_MASK (3<<0) #define WLAN_CAPABILITY_DMG_TYPE_IBSS (1<<0) /* Tx by: STA */ #define WLAN_CAPABILITY_DMG_TYPE_PBSS (2<<0) /* Tx by: PCP */ #define WLAN_CAPABILITY_DMG_TYPE_AP (3<<0) /* Tx by: AP */ #define WLAN_CAPABILITY_DMG_CBAP_ONLY (1<<2) -#define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3) +#define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3) #define WLAN_CAPABILITY_DMG_PRIVACY (1<<4) #define WLAN_CAPABILITY_DMG_ECPAC (1<<5) -- cgit v1.2.3 From 598a5938e04ce30d837dca4c3c3326c69435342a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 28 Dec 2012 12:00:40 +0100 Subject: wireless: use __packed in ieee80211.h Use __packed instead of __attribute__((packed)). Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 84 +++++++++++++++++++++++------------------------ 1 file changed, 42 insertions(+), 42 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 09879eb24380..5db76ebe8810 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -180,7 +180,7 @@ struct ieee80211_hdr { u8 addr3[6]; __le16 seq_ctrl; u8 addr4[6]; -} __attribute__ ((packed)); +} __packed; struct ieee80211_hdr_3addr { __le16 frame_control; @@ -189,7 +189,7 @@ struct ieee80211_hdr_3addr { u8 addr2[6]; u8 addr3[6]; __le16 seq_ctrl; -} __attribute__ ((packed)); +} __packed; struct ieee80211_qos_hdr { __le16 frame_control; @@ -199,7 +199,7 @@ struct ieee80211_qos_hdr { u8 addr3[6]; __le16 seq_ctrl; __le16 qos_ctrl; -} __attribute__ ((packed)); +} __packed; /** * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set @@ -576,7 +576,7 @@ struct ieee80211s_hdr { __le32 seqnum; u8 eaddr1[6]; u8 eaddr2[6]; -} __attribute__ ((packed)); +} __packed; /* Mesh flags */ #define MESH_FLAGS_AE_A4 0x1 @@ -614,7 +614,7 @@ struct ieee80211_quiet_ie { u8 period; __le16 duration; __le16 offset; -} __attribute__ ((packed)); +} __packed; /** * struct ieee80211_msrment_ie @@ -626,7 +626,7 @@ struct ieee80211_msrment_ie { u8 mode; u8 type; u8 request[0]; -} __attribute__ ((packed)); +} __packed; /** * struct ieee80211_channel_sw_ie @@ -637,7 +637,7 @@ struct ieee80211_channel_sw_ie { u8 mode; u8 new_ch_num; u8 count; -} __attribute__ ((packed)); +} __packed; /** * struct ieee80211_tim @@ -650,7 +650,7 @@ struct ieee80211_tim_ie { u8 bitmap_ctrl; /* variable size: 1 - 251 bytes */ u8 virtual_map[1]; -} __attribute__ ((packed)); +} __packed; /** * struct ieee80211_meshconf_ie @@ -665,7 +665,7 @@ struct ieee80211_meshconf_ie { u8 meshconf_auth; u8 meshconf_form; u8 meshconf_cap; -} __attribute__ ((packed)); +} __packed; /** * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags @@ -695,7 +695,7 @@ struct ieee80211_rann_ie { __le32 rann_seq; __le32 rann_interval; __le32 rann_metric; -} __attribute__ ((packed)); +} __packed; enum ieee80211_rann_flags { RANN_FLAG_IS_GATE = 1 << 0, @@ -717,33 +717,33 @@ struct ieee80211_mgmt { __le16 status_code; /* possibly followed by Challenge text */ u8 variable[0]; - } __attribute__ ((packed)) auth; + } __packed auth; struct { __le16 reason_code; - } __attribute__ ((packed)) deauth; + } __packed deauth; struct { __le16 capab_info; __le16 listen_interval; /* followed by SSID and Supported rates */ u8 variable[0]; - } __attribute__ ((packed)) assoc_req; + } __packed assoc_req; struct { __le16 capab_info; __le16 status_code; __le16 aid; /* followed by Supported rates */ u8 variable[0]; - } __attribute__ ((packed)) assoc_resp, reassoc_resp; + } __packed assoc_resp, reassoc_resp; struct { __le16 capab_info; __le16 listen_interval; u8 current_ap[6]; /* followed by SSID and Supported rates */ u8 variable[0]; - } __attribute__ ((packed)) reassoc_req; + } __packed reassoc_req; struct { __le16 reason_code; - } __attribute__ ((packed)) disassoc; + } __packed disassoc; struct { __le64 timestamp; __le16 beacon_int; @@ -751,11 +751,11 @@ struct ieee80211_mgmt { /* followed by some of SSID, Supported rates, * FH Params, DS Params, CF Params, IBSS Params, TIM */ u8 variable[0]; - } __attribute__ ((packed)) beacon; + } __packed beacon; struct { /* only variable items: SSID, Supported rates */ u8 variable[0]; - } __attribute__ ((packed)) probe_req; + } __packed probe_req; struct { __le64 timestamp; __le16 beacon_int; @@ -763,7 +763,7 @@ struct ieee80211_mgmt { /* followed by some of SSID, Supported rates, * FH Params, DS Params, CF Params, IBSS Params */ u8 variable[0]; - } __attribute__ ((packed)) probe_resp; + } __packed probe_resp; struct { u8 category; union { @@ -772,55 +772,55 @@ struct ieee80211_mgmt { u8 dialog_token; u8 status_code; u8 variable[0]; - } __attribute__ ((packed)) wme_action; + } __packed wme_action; struct{ u8 action_code; u8 element_id; u8 length; struct ieee80211_channel_sw_ie sw_elem; - } __attribute__((packed)) chan_switch; + } __packed chan_switch; struct{ u8 action_code; u8 dialog_token; u8 element_id; u8 length; struct ieee80211_msrment_ie msr_elem; - } __attribute__((packed)) measurement; + } __packed measurement; struct{ u8 action_code; u8 dialog_token; __le16 capab; __le16 timeout; __le16 start_seq_num; - } __attribute__((packed)) addba_req; + } __packed addba_req; struct{ u8 action_code; u8 dialog_token; __le16 status; __le16 capab; __le16 timeout; - } __attribute__((packed)) addba_resp; + } __packed addba_resp; struct{ u8 action_code; __le16 params; __le16 reason_code; - } __attribute__((packed)) delba; + } __packed delba; struct { u8 action_code; u8 variable[0]; - } __attribute__((packed)) self_prot; + } __packed self_prot; struct{ u8 action_code; u8 variable[0]; - } __attribute__((packed)) mesh_action; + } __packed mesh_action; struct { u8 action; u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; - } __attribute__ ((packed)) sa_query; + } __packed sa_query; struct { u8 action; u8 smps_control; - } __attribute__ ((packed)) ht_smps; + } __packed ht_smps; struct { u8 action_code; u8 dialog_token; @@ -828,9 +828,9 @@ struct ieee80211_mgmt { u8 variable[0]; } __packed tdls_discover_resp; } u; - } __attribute__ ((packed)) action; + } __packed action; } u; -} __attribute__ ((packed)); +} __packed; /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */ #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127 @@ -846,7 +846,7 @@ struct ieee80211_mmie { __le16 key_id; u8 sequence_number[6]; u8 mic[8]; -} __attribute__ ((packed)); +} __packed; struct ieee80211_vendor_ie { u8 element_id; @@ -861,20 +861,20 @@ struct ieee80211_rts { __le16 duration; u8 ra[6]; u8 ta[6]; -} __attribute__ ((packed)); +} __packed; struct ieee80211_cts { __le16 frame_control; __le16 duration; u8 ra[6]; -} __attribute__ ((packed)); +} __packed; struct ieee80211_pspoll { __le16 frame_control; __le16 aid; u8 bssid[6]; u8 ta[6]; -} __attribute__ ((packed)); +} __packed; /* TDLS */ @@ -967,7 +967,7 @@ struct ieee80211_bar { __u8 ta[6]; __le16 control; __le16 start_seq_num; -} __attribute__((packed)); +} __packed; /* 802.11 BAR control masks */ #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 @@ -992,7 +992,7 @@ struct ieee80211_mcs_info { __le16 rx_highest; u8 tx_params; u8 reserved[3]; -} __attribute__((packed)); +} __packed; /* 802.11n HT capability MSC set */ #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff @@ -1031,7 +1031,7 @@ struct ieee80211_ht_cap { __le16 extended_ht_cap_info; __le32 tx_BF_cap_info; u8 antenna_selection_info; -} __attribute__ ((packed)); +} __packed; /* 802.11n HT capabilities masks (for cap_info) */ #define IEEE80211_HT_CAP_LDPC_CODING 0x0001 @@ -1102,7 +1102,7 @@ struct ieee80211_ht_operation { __le16 operation_mode; __le16 stbc_param; u8 basic_set[16]; -} __attribute__ ((packed)); +} __packed; /* for ht_param */ #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 @@ -1839,14 +1839,14 @@ struct ieee80211_country_ie_triplet { u8 first_channel; u8 num_channels; s8 max_power; - } __attribute__ ((packed)) chans; + } __packed chans; struct { u8 reg_extension_id; u8 reg_class; u8 coverage_class; - } __attribute__ ((packed)) ext; + } __packed ext; }; -} __attribute__ ((packed)); +} __packed; enum ieee80211_timeout_interval_type { WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */, -- cgit v1.2.3 From ec61cd63dd3f3bf982180b2bcc1b325160d73837 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 28 Dec 2012 12:12:10 +0100 Subject: mac80211: support HT notify channel width action Support the HT notify channel width action frame to update the rate scaling about the bandwidth the peer can receive in. Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 5db76ebe8810..ccf9ee1dca8c 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -701,6 +701,11 @@ enum ieee80211_rann_flags { RANN_FLAG_IS_GATE = 1 << 0, }; +enum ieee80211_ht_chanwidth_values { + IEEE80211_HT_CHANWIDTH_20MHZ = 0, + IEEE80211_HT_CHANWIDTH_ANY = 1, +}; + #define WLAN_SA_QUERY_TR_ID_LEN 2 struct ieee80211_mgmt { @@ -821,6 +826,10 @@ struct ieee80211_mgmt { u8 action; u8 smps_control; } __packed ht_smps; + struct { + u8 action_code; + u8 chanwidth; + } __packed ht_notify_cw; struct { u8 action_code; u8 dialog_token; -- cgit v1.2.3 From d2e5f0c16ad60a7208fd371233e63b73c990ece2 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 23 Dec 2012 00:02:44 +0100 Subject: ACPI / PCI: Rework the setup and cleanup of device wakeup Currently, the ACPI wakeup capability of PCI devices is set up in two different places, partially in acpi_pci_bind() where runtime wakeup is initialized and partially in platform_pci_wakeup_init(), where system wakeup is initialized. The cleanup is only done in acpi_pci_unbind() and it only covers runtime wakeup. Use the new .setup() and .cleanup() callbacks in struct acpi_bus_type to consolidate that code and do the setup and the cleanup each in one place. Signed-off-by: Rafael J. Wysocki Acked-by: Yinghai Lu Acked-by: Toshi Kani --- include/linux/acpi.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3994d7790b23..8c1d6f2a2193 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -526,9 +526,14 @@ static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } #endif #if defined(CONFIG_ACPI) && defined(CONFIG_PM) +struct acpi_device *acpi_dev_pm_get_node(struct device *dev); int acpi_dev_pm_attach(struct device *dev, bool power_on); void acpi_dev_pm_detach(struct device *dev, bool power_off); #else +static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev) +{ + return NULL; +} static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) { return -ENODEV; -- cgit v1.2.3 From 1d5210008bd3a26daf4b06aed9d6c330dd4c83e2 Mon Sep 17 00:00:00 2001 From: Lance Ortiz Date: Thu, 3 Jan 2013 15:34:08 -0700 Subject: aerdrv: Enhanced AER logging This patch will provide a more reliable and easy way for user-space applications to have access to AER logs rather than reading them from the message buffer. It also provides a way to notify user-space when an AER event occurs. The aer driver is updated to generate a trace event of function 'aer_event' when a PCIe error is reported over the AER interface. The trace event was added to both the interrupt based aer path and the firmware first path. Signed-off-by: Lance Ortiz Acked-by: Mauro Carvalho Chehab Acked-by: Boris Petkov Signed-off-by: Tony Luck --- include/linux/aer.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/aer.h b/include/linux/aer.h index 544abdb2238c..ec10e1b24c1c 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -49,8 +49,8 @@ static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) } #endif -extern void cper_print_aer(const char *prefix, int cper_severity, - struct aer_capability_regs *aer); +extern void cper_print_aer(const char *prefix, struct pci_dev *dev, + int cper_severity, struct aer_capability_regs *aer); extern int cper_severity_to_aer(int cper_severity); extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, int severity); -- cgit v1.2.3 From e41b2d7fe7803e85e1202d0eb172717d7bf1bbaf Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Tue, 1 Jan 2013 03:30:15 +0000 Subject: net: set dev->addr_assign_type correctly Not a bitfield, but a plain value. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/etherdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 243eea1e33d8..1a43e1b4f7ad 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -192,7 +192,7 @@ static inline void eth_zero_addr(u8 *addr) */ static inline void eth_hw_addr_random(struct net_device *dev) { - dev->addr_assign_type |= NET_ADDR_RANDOM; + dev->addr_assign_type = NET_ADDR_RANDOM; eth_random_addr(dev->dev_addr); } -- cgit v1.2.3 From fbdeca2d7753aa1ab929aeb77ccc46489eed02b9 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Tue, 1 Jan 2013 03:30:16 +0000 Subject: net: add address assign type "SET" This is the way to indicate that mac address of a device has been set by dev_set_mac_address() Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 6835b5837f93..c5031a45e185 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -64,6 +64,8 @@ struct wireless_dev; #define NET_ADDR_PERM 0 /* address is permanent (default) */ #define NET_ADDR_RANDOM 1 /* address is generated randomly */ #define NET_ADDR_STOLEN 2 /* address is stolen from other device */ +#define NET_ADDR_SET 3 /* address is set using + * dev_set_mac_address() */ /* Backlog congestion levels */ #define NET_RX_SUCCESS 0 /* keep 'em coming, baby */ -- cgit v1.2.3 From 9442490a02867088bcd5ed6231fa3b35a733c2b8 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 4 Jan 2013 16:35:07 +0000 Subject: regmap: irq: Support wake IRQ mask inversion Support devices which have an enable rather than mask register for wake sources. Signed-off-by: Mark Brown --- include/linux/regmap.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index b7e95bf942c9..8c0b50df3d59 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -381,6 +381,7 @@ struct regmap_irq_chip { unsigned int wake_base; unsigned int irq_reg_stride; unsigned int mask_invert; + unsigned int wake_invert; bool runtime_pm; int num_regs; -- cgit v1.2.3 From 9ff162a8b96c96238773972e26288a366e403b0c Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 3 Jan 2013 22:48:49 +0000 Subject: net: introduce upper device lists This lists are supposed to serve for storing pointers to all upper devices. Eventually it will replace dev->master pointer which is used for bonding, bridge, team but it cannot be used for vlan, macvlan where there might be multiple upper present. In case the upper link is replacement for dev->master, it is marked with "master" flag. New upper device list resolves this limitation. Also, the information stored in lists is used for preventing looping setups like "bond->somethingelse->samebond" Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/netdevice.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index c5031a45e185..e324601f48e8 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1174,6 +1174,8 @@ struct net_device { * which this device is member of. */ + struct list_head upper_dev_list; /* List of upper devices */ + /* Interface address info used in eth_type_trans() */ unsigned char *dev_addr; /* hw address, (before bcast because most packets are @@ -2636,6 +2638,18 @@ extern int netdev_max_backlog; extern int netdev_tstamp_prequeue; extern int weight_p; extern int bpf_jit_enable; + +extern bool netdev_has_upper_dev(struct net_device *dev, + struct net_device *upper_dev); +extern bool netdev_has_any_upper_dev(struct net_device *dev); +extern struct net_device *netdev_master_upper_dev_get(struct net_device *dev); +extern struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev); +extern int netdev_upper_dev_link(struct net_device *dev, + struct net_device *upper_dev); +extern int netdev_master_upper_dev_link(struct net_device *dev, + struct net_device *upper_dev); +extern void netdev_upper_dev_unlink(struct net_device *dev, + struct net_device *upper_dev); extern int netdev_set_master(struct net_device *dev, struct net_device *master); extern int netdev_set_bond_master(struct net_device *dev, struct net_device *master); -- cgit v1.2.3 From 8b98a70c28a607a02b3c3d41bc9a4c141f421052 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 3 Jan 2013 22:49:02 +0000 Subject: net: remove no longer used netdev_set_bond_master() and netdev_set_master() Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/netdevice.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e324601f48e8..3cad8eab02b6 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -858,8 +858,7 @@ struct netdev_fcoe_hbainfo { * flow_id is a flow ID to be passed to rps_may_expire_flow() later. * Return the filter ID on success, or a negative error code. * - * Slave management functions (for bridge, bonding, etc). User should - * call netdev_set_master() to set dev->master properly. + * Slave management functions (for bridge, bonding, etc). * int (*ndo_add_slave)(struct net_device *dev, struct net_device *slave_dev); * Called to make another netdev an underling. * @@ -2650,9 +2649,6 @@ extern int netdev_master_upper_dev_link(struct net_device *dev, struct net_device *upper_dev); extern void netdev_upper_dev_unlink(struct net_device *dev, struct net_device *upper_dev); -extern int netdev_set_master(struct net_device *dev, struct net_device *master); -extern int netdev_set_bond_master(struct net_device *dev, - struct net_device *master); extern int skb_checksum_help(struct sk_buff *skb); extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, netdev_features_t features); -- cgit v1.2.3 From 85464ef271a0f5496f404c6a2f2dfbf1d76e1a49 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 3 Jan 2013 22:49:03 +0000 Subject: net: kill dev->master Nobody uses this now. Remove it. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/netdevice.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 3cad8eab02b6..0209ac328e8a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1169,10 +1169,6 @@ struct net_device { * avoid dirtying this cache line. */ - struct net_device *master; /* Pointer to master device of a group, - * which this device is member of. - */ - struct list_head upper_dev_list; /* List of upper devices */ /* Interface address info used in eth_type_trans() */ -- cgit v1.2.3 From a05be99174edc9f258ee68140b71b9645ad977ee Mon Sep 17 00:00:00 2001 From: Ramakrishna Pallala Date: Fri, 30 Nov 2012 13:57:46 +0530 Subject: power_supply: Add watchdog and safety timer expiries under PROP_HEALTH_* As most of the charger chips come with two kinds of safety features related to timing: 1. Watchdog Timer (interms of seconds/mins) 2. Safety Timer (interms of hours) This patch adds these to fault causes in POWER_SUPPLY_PROP_HEALTH_* enums so that whenever there is either watchdog timeout or safety timer timeout driver could notify the user space accurately about the fault and will also be helpful for debug. Signed-off-by: Ramakrishna Pallala Signed-off-by: Anton Vorontsov --- include/linux/power_supply.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 1f0ab90aff00..25c0982eb9b1 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -54,6 +54,8 @@ enum { POWER_SUPPLY_HEALTH_OVERVOLTAGE, POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, POWER_SUPPLY_HEALTH_COLD, + POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE, + POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE, }; enum { -- cgit v1.2.3 From 80524f083e2c3e70057f5bb476db92baa14cb22b Mon Sep 17 00:00:00 2001 From: Kamal Mostafa Date: Tue, 20 Nov 2012 23:04:35 -0800 Subject: Input: increase struct ps2dev cmdbuf[] to 8 bytes Cypress PS/2 Trackpad (drivers/input/mouse/cypress_ps2.c) needs this larger cmdbuf[] to handle 8-byte packet responses. Signed-off-by: Kamal Mostafa Signed-off-by: Dmitry Torokhov --- include/linux/libps2.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/libps2.h b/include/linux/libps2.h index 79603a6c356f..4ad06e824f76 100644 --- a/include/linux/libps2.h +++ b/include/linux/libps2.h @@ -36,7 +36,7 @@ struct ps2dev { wait_queue_head_t wait; unsigned long flags; - unsigned char cmdbuf[6]; + unsigned char cmdbuf[8]; unsigned char cmdcnt; unsigned char nak; }; -- cgit v1.2.3 From d5b1fe68baa7213f198e5be8cd1a1037258ab2c8 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 28 Dec 2012 13:18:28 -0800 Subject: cgroup: remove unused dummy cgroup_fork_callbacks() 5edee61ede ("cgroup: cgroup_subsys->fork() should be called after the task is added to css_set") removed cgroup_fork_callbacks() but forgot to remove its dummy version for !CONFIG_CGROUPS. Remove it. Signed-off-by: Tejun Heo Reported-by: Herton Ronaldo Krzesinski --- include/linux/cgroup.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 7d73905dcba2..942e68705577 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -706,7 +706,6 @@ struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id); static inline int cgroup_init_early(void) { return 0; } static inline int cgroup_init(void) { return 0; } static inline void cgroup_fork(struct task_struct *p) {} -static inline void cgroup_fork_callbacks(struct task_struct *p) {} static inline void cgroup_post_fork(struct task_struct *p) {} static inline void cgroup_exit(struct task_struct *p, int callbacks) {} -- cgit v1.2.3 From 12a9d2fef1d35770d3cdc2cd1faabb83c45bc0fa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 7 Jan 2013 08:49:33 -0800 Subject: cgroup: implement cgroup_rightmost_descendant() Implement cgroup_rightmost_descendant() which returns the right most descendant of the specified cgroup. This can be used to skip the cgroup's subtree while iterating with cgroup_for_each_descendant_pre(). Signed-off-by: Tejun Heo Acked-by: Michal Hocko Acked-by: Li Zefan --- include/linux/cgroup.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 942e68705577..8118a3120378 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -558,6 +558,7 @@ static inline struct cgroup* task_cgroup(struct task_struct *task, struct cgroup *cgroup_next_descendant_pre(struct cgroup *pos, struct cgroup *cgroup); +struct cgroup *cgroup_rightmost_descendant(struct cgroup *pos); /** * cgroup_for_each_descendant_pre - pre-order walk of a cgroup's descendants -- cgit v1.2.3 From 8f9dc85348ac37ff3b6b031d22e93a5b59d81f83 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Fri, 4 Jan 2013 00:51:24 +0100 Subject: bcma: mips: remove assigned_irqs from structure This member is not needed any more. Signed-off-by: Hauke Mehrtens Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_mips.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h index 0baf8a56b794..6495579e3f35 100644 --- a/include/linux/bcma/bcma_driver_mips.h +++ b/include/linux/bcma/bcma_driver_mips.h @@ -36,7 +36,6 @@ struct bcma_drv_mips { struct bcma_device *core; u8 setup_done:1; u8 early_setup_done:1; - unsigned int assigned_irqs; }; #ifdef CONFIG_BCMA_DRIVER_MIPS -- cgit v1.2.3 From 851bacf5902cad15f9bb789d278a1ee9608c8f25 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 7 Jan 2013 12:44:33 +0200 Subject: spi/pxa2xx: embed the ssp_device to platform data The spi-pxa2xx-pci glue driver had to implement pxa_ssp_request()/free() in order to support the spi-pxa2xx platform driver. Since the ACPI enabled platforms can use the same platform driver we would need to implement pxa_ssp_request()/free() in some central place that can be shared by the ACPI and PCI glue code. Instead of doing that we can make pxa_ssp_request()/free() to be available only when CONFIG_ARCH_PXA is set. On other arches these are being stubbed out in preference to passing the ssp_device from the platform data directly. We also change the SPI bus number to be taken from ssp->port_id instead of platform device id. This way the supporting code that passes the ssp can decide the number (or it can set it to the same as pdev->id). Signed-off-by: Mika Westerberg Signed-off-by: Mark Brown --- include/linux/pxa2xx_ssp.h | 9 +++++++++ include/linux/spi/pxa2xx_spi.h | 3 +++ 2 files changed, 12 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index f36632061c66..065e7f6c3ad7 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -206,6 +206,15 @@ static inline u32 pxa_ssp_read_reg(struct ssp_device *dev, u32 reg) return __raw_readl(dev->mmio_base + reg); } +#ifdef CONFIG_ARCH_PXA struct ssp_device *pxa_ssp_request(int port, const char *label); void pxa_ssp_free(struct ssp_device *); +#else +static inline struct ssp_device *pxa_ssp_request(int port, const char *label) +{ + return NULL; +} +static inline void pxa_ssp_free(struct ssp_device *ssp) {} +#endif + #endif diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index c73d1445c77e..6b99f09b717d 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -28,6 +28,9 @@ struct pxa2xx_spi_master { u32 clock_enable; u16 num_chipselect; u8 enable_dma; + + /* For non-PXA arches */ + struct ssp_device ssp; }; /* spi_board_info.controller_data for SPI slave devices, -- cgit v1.2.3 From 52494535103986dbbf689b44d8c2c7efe2132b16 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 14 Nov 2012 16:26:40 -0800 Subject: rcu: Reduce rcutorture tracing Currently, rcutorture traces every read-side access. This can be problematic because even a two-minute rcutorture run on a two-CPU system can generate 28,853,363 reads. Normally, only a failing read is of interest, so this commit traces adjusts rcutorture's tracing to only trace failing reads. The resulting event tracing records the time and the ->completed value captured at the beginning of the RCU read-side critical section, allowing correlation with other event-tracing messages. Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett [ paulmck: Add fix to build problem located by Randy Dunlap based on diagnosis by Steven Rostedt. ] --- include/linux/rcupdate.h | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 275aa3f1062d..7f89cea596e1 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -53,7 +53,10 @@ extern int rcutorture_runnable; /* for sysctl */ extern void rcutorture_record_test_transition(void); extern void rcutorture_record_progress(unsigned long vernum); extern void do_trace_rcu_torture_read(char *rcutorturename, - struct rcu_head *rhp); + struct rcu_head *rhp, + unsigned long secs, + unsigned long c_old, + unsigned long c); #else static inline void rcutorture_record_test_transition(void) { @@ -63,9 +66,13 @@ static inline void rcutorture_record_progress(unsigned long vernum) } #ifdef CONFIG_RCU_TRACE extern void do_trace_rcu_torture_read(char *rcutorturename, - struct rcu_head *rhp); + struct rcu_head *rhp, + unsigned long secs, + unsigned long c_old, + unsigned long c); #else -#define do_trace_rcu_torture_read(rcutorturename, rhp) do { } while (0) +#define do_trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \ + do { } while (0) #endif #endif -- cgit v1.2.3 From fda55eca5a33f33ffcd4192c6b2d75179714a52c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 7 Jan 2013 09:28:21 +0000 Subject: net: introduce skb_transport_header_was_set() We have skb_mac_header_was_set() helper to tell if mac_header was set on a skb. We would like the same for transport_header. __netif_receive_skb() doesn't reset the transport header if already set by GRO layer. Note that network stacks usually reset the transport header anyway, after pulling the network header, so this change only allows a followup patch to have more precise qdisc pkt_len computation for GSO packets at ingress side. Signed-off-by: Eric Dumazet Cc: Jamal Hadi Salim Signed-off-by: David S. Miller --- include/linux/skbuff.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 320e976d5ab8..8b2256e880e0 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1492,6 +1492,11 @@ static inline void skb_set_inner_network_header(struct sk_buff *skb, skb->inner_network_header += offset; } +static inline bool skb_transport_header_was_set(const struct sk_buff *skb) +{ + return skb->transport_header != ~0U; +} + static inline unsigned char *skb_transport_header(const struct sk_buff *skb) { return skb->head + skb->transport_header; @@ -1580,6 +1585,11 @@ static inline void skb_set_inner_network_header(struct sk_buff *skb, skb->inner_network_header = skb->data + offset; } +static inline bool skb_transport_header_was_set(const struct sk_buff *skb) +{ + return skb->transport_header != NULL; +} + static inline unsigned char *skb_transport_header(const struct sk_buff *skb) { return skb->transport_header; -- cgit v1.2.3 From b7394d2429c198b1da3d46ac39192e891029ec0f Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Mon, 7 Jan 2013 20:52:39 +0000 Subject: netpoll: prepare for ipv6 This patch adjusts some struct and functions, to prepare for supporting IPv6. Cc: David S. Miller Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/linux/netpoll.h | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index 66d5379c305e..f54c3bb6a22b 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -12,13 +12,22 @@ #include #include +union inet_addr { + __u32 all[4]; + __be32 ip; + __be32 ip6[4]; + struct in_addr in; + struct in6_addr in6; +}; + struct netpoll { struct net_device *dev; char dev_name[IFNAMSIZ]; const char *name; void (*rx_hook)(struct netpoll *, int, char *, int); - __be32 local_ip, remote_ip; + union inet_addr local_ip, remote_ip; + bool ipv6; u16 local_port, remote_port; u8 remote_mac[ETH_ALEN]; @@ -33,7 +42,7 @@ struct netpoll_info { spinlock_t rx_lock; struct list_head rx_np; /* netpolls that registered an rx_hook */ - struct sk_buff_head arp_tx; /* list of arp requests to reply to */ + struct sk_buff_head neigh_tx; /* list of neigh requests to reply to */ struct sk_buff_head txq; struct delayed_work tx_work; -- cgit v1.2.3 From dd4544f05469aaaeee891d7dc54d66430344321e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 8 Jan 2013 20:06:23 +0000 Subject: bgmac: driver for GBit MAC core on BCMA bus MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit BCMA is a Broadcom specific bus with devices AKA cores. All recent BCMA based SoCs have gigabit ethernet provided by the GBit MAC core. This patch adds driver for such a cores registering itself as a netdev. It has been tested on a BCM4706 and BCM4718 chipsets. In the kernel tree there is already b44 driver which has some common things with bgmac, however there are many differences that has led to the decision or writing a new driver: 1) GBit MAC cores appear on BCMA bus (not SSB as in case of b44) 2) There is 64bit DMA engine which differs from 32bit one 3) There is no CAM (Content Addressable Memory) in GBit MAC 4) We have 4 TX queues on GBit MAC devices (instead of 1) 5) Many registers have different addresses/values 6) RX header flags are also different The driver in it's state is functional how, however there is of course place for improvements: 1) Supporting more net_device_ops 2) SUpporting more ethtool_ops 3) Unaligned addressing in DMA 4) Writing separated PHY driver Signed-off-by: Rafał Miłecki Signed-off-by: David S. Miller --- include/linux/bcma/bcma_driver_chipcommon.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index 9a0e3fa3ca95..ee332fab825b 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -634,4 +634,6 @@ extern void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask, u32 set); extern void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid); +extern u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc); + #endif /* LINUX_BCMA_DRIVER_CC_H_ */ -- cgit v1.2.3 From 416186fbf8c5b4e4465a10c6ac7a45b6c47144b2 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Thu, 10 Jan 2013 08:56:51 +0000 Subject: net: Split core bits of netdev_pick_tx into __netdev_pick_tx This change splits the core bits of netdev_pick_tx into a separate function. The main idea behind this is to make this code accessible to select queue functions when they decide to process the standard path instead of their own custom path in their select queue routine. Signed-off-by: Alexander Duyck Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 0209ac328e8a..608c3ac4d045 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1403,6 +1403,7 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev, extern struct netdev_queue *netdev_pick_tx(struct net_device *dev, struct sk_buff *skb); +extern u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb); /* * Net namespace inlines -- cgit v1.2.3 From 537c00de1c9ba9876b91d869e84caceefe2b8bf9 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Thu, 10 Jan 2013 08:57:02 +0000 Subject: net: Add functions netif_reset_xps_queue and netif_set_xps_queue This patch adds two functions, netif_reset_xps_queue and netif_set_xps_queue. The main idea behind these two functions is to provide a mechanism through which drivers can update their defaults in regards to XPS. Currently no such mechanism exists and as a result we cannot use XPS for things such as ATR which would require a basic configuration to start in which the Tx queues are mapped to CPUs via a 1:1 mapping. With this change I am making it possible for drivers such as ixgbe to be able to use the XPS feature by controlling the default configuration. Signed-off-by: Alexander Duyck Signed-off-by: David S. Miller --- include/linux/netdevice.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 608c3ac4d045..59fe9da4e315 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2103,6 +2103,19 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index) __netif_schedule(txq->qdisc); } +#ifdef CONFIG_XPS +extern void netif_reset_xps_queue(struct net_device *dev, u16 index); +extern int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask, + u16 index); +#else +static inline int netif_set_xps_queue(struct net_device *dev, + struct cpumask *mask, + u16 index) +{ + return 0; +} +#endif + /* * Returns a Tx hash for the given packet when dev->real_num_tx_queues is used * as a distribution range limit for the returned value. -- cgit v1.2.3 From 024e9679a2daaa67642693366fb63a6b8c61b9f3 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Thu, 10 Jan 2013 08:57:46 +0000 Subject: net: Add support for XPS without sysfs being defined This patch makes it so that we can support transmit packet steering without sysfs needing to be enabled. The reason for making this change is to make it so that a driver can make use of the XPS even while the sysfs portion of the interface is not present. Signed-off-by: Alexander Duyck Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 59fe9da4e315..aa7ad8a96e70 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2104,7 +2104,6 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index) } #ifdef CONFIG_XPS -extern void netif_reset_xps_queue(struct net_device *dev, u16 index); extern int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask, u16 index); #else -- cgit v1.2.3 From b43e1065cab4b5be90c016b2f076086b70cd1556 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Sat, 12 Jan 2013 15:29:38 +0000 Subject: ACPICA: Cleanup table handler naming conflicts. This is a cosmetic patch only. Comparison of the resulting binary showed only line number differences. This patch does not affect the generation of the Linux binary. This patch decreases 44 lines of 20121114 divergence.diff. There are naming conflicts between Linux and ACPICA on table handlers. This patch cleans up this conflicts to reduce the source code diff between Linux and ACPICA. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3994d7790b23..6b795bd36383 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -74,9 +74,10 @@ enum acpi_address_range_id { /* Table Handlers */ -typedef int (*acpi_table_handler) (struct acpi_table_header *table); +typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); -typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end); +typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, + const unsigned long end); #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE void acpi_initrd_override(void *data, size_t size); @@ -95,10 +96,14 @@ int acpi_mps_check (void); int acpi_numa_init (void); int acpi_table_init (void); -int acpi_table_parse (char *id, acpi_table_handler handler); +int acpi_table_parse(char *id, acpi_tbl_table_handler handler); int __init acpi_table_parse_entries(char *id, unsigned long table_size, - int entry_id, acpi_table_entry_handler handler, unsigned int max_entries); -int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries); + int entry_id, + acpi_tbl_entry_handler handler, + unsigned int max_entries); +int acpi_table_parse_madt(enum acpi_madt_type id, + acpi_tbl_entry_handler handler, + unsigned int max_entries); int acpi_parse_mcfg (struct acpi_table_header *header); void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); -- cgit v1.2.3 From e2aa19fadd718d7dd920a3994118863861a4b61e Mon Sep 17 00:00:00 2001 From: Nathan Hintz Date: Thu, 10 Jan 2013 17:54:09 +0100 Subject: bcma: return the mips irq number in bcma_core_irq The irq signal numbers that are send by the cpu are increased by 2 from the number programmed into the mips core by bcma. Return the irq number on which the irqs are send in bcma_core_irq() now. Signed-off-by: Nathan Hintz Signed-off-by: Hauke Mehrtens Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_mips.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h index 6495579e3f35..73c7f4b882cc 100644 --- a/include/linux/bcma/bcma_driver_mips.h +++ b/include/linux/bcma/bcma_driver_mips.h @@ -48,6 +48,6 @@ static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { } extern u32 bcma_cpu_clock(struct bcma_drv_mips *mcore); -extern unsigned int bcma_core_mips_irq(struct bcma_device *dev); +extern unsigned int bcma_core_irq(struct bcma_device *core); #endif /* LINUX_BCMA_DRIVER_MIPS_H_ */ -- cgit v1.2.3 From 990debe2ca8379863709721926550a55f47f3880 Mon Sep 17 00:00:00 2001 From: Nathan Hintz Date: Thu, 10 Jan 2013 22:24:03 -0800 Subject: bcma: update pci configuration for bcm4706/bcm4716 Update the PCI configuration for BCM4706 and BCM4716 per the 2011 Broadcom SDK. Signed-off-by: Nathan Hintz Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_pci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_pci.h b/include/linux/bcma/bcma_driver_pci.h index 41da581e1612..31232247a1ee 100644 --- a/include/linux/bcma/bcma_driver_pci.h +++ b/include/linux/bcma/bcma_driver_pci.h @@ -179,6 +179,8 @@ struct pci_dev; #define BCMA_CORE_PCI_CFG_FUN_MASK 7 /* Function mask */ #define BCMA_CORE_PCI_CFG_OFF_MASK 0xfff /* Register mask */ +#define BCMA_CORE_PCI_CFG_DEVCTRL 0xd8 + /* PCIE Root Capability Register bits (Host mode only) */ #define BCMA_CORE_PCI_RC_CRS_VISIBILITY 0x0001 -- cgit v1.2.3 From 483f33f63c1cb3c6becb465bac7b75d7ff5e3b8f Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 4 Jan 2013 17:57:40 +0100 Subject: pinctrl: add pinconf-generic defines for output This adds a definition of a generic output configuration for a certain pin when using the generic pin configuration library. Whereas driving pins low/high is usually a GPIO business, you may want to set up pins into a default state using hogs, and never touch them again. This helps out with that scenario. Based on a patch from Patrice Chotard. Signed-off-by: Patrice Chotard Reviewed-by: Stephen Warren Signed-off-by: Linus Walleij --- include/linux/pinctrl/pinconf-generic.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 47a1bdd88878..b23d99da3b4b 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -62,6 +62,8 @@ * operation, if several modes of operation are supported these can be * passed in the argument on a custom form, else just use argument 1 * to indicate low power mode, argument 0 turns low power mode off. + * @PIN_CONFIG_OUTPUT: this will configure the pin in output, use argument + * 1 to indicate high level, argument 0 to indicate low level. * @PIN_CONFIG_END: this is the last enumerator for pin configurations, if * you need to pass in custom configurations to the pin controller, use * PIN_CONFIG_END+1 as the base offset. @@ -79,6 +81,7 @@ enum pin_config_param { PIN_CONFIG_INPUT_DEBOUNCE, PIN_CONFIG_POWER_SOURCE, PIN_CONFIG_LOW_POWER_MODE, + PIN_CONFIG_OUTPUT, PIN_CONFIG_END = 0x7FFF, }; -- cgit v1.2.3 From e7219858ac1f98213a4714d0e24e7a003e1bf6a2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= =?UTF-8?q?=E6=98=8E?= Date: Sun, 13 Jan 2013 05:02:01 +0000 Subject: ipv6: Use ipv6_get_dsfield() instead of ipv6_tclass(). Commit 7a3198a8 ("ipv6: helper function to get tclass") introduced ipv6_tclass(), but similar function is already available as ipv6_get_dsfield(). We might be able to call ipv6_tclass() from ipv6_get_dsfield(), but it is confusing to have two versions. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/linux/ipv6.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index faed1e357dd6..304a9f46b578 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -77,11 +77,6 @@ static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb) return (struct ipv6hdr *)skb_transport_header(skb); } -static inline __u8 ipv6_tclass(const struct ipv6hdr *iph) -{ - return (ntohl(*(__be32 *)iph) >> 20) & 0xff; -} - /* This structure contains results of exthdrs parsing as offsets from skb->nh. -- cgit v1.2.3 From dd3332bfcb2223458f553f341d3388cb84040e6a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= =?UTF-8?q?=E6=98=8E?= Date: Sun, 13 Jan 2013 05:02:45 +0000 Subject: ipv6: Store Router Alert option in IP6CB directly. Router Alert option is very small and we can store the value itself in the skb. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/linux/ipv6.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 304a9f46b578..e971e3742172 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -84,7 +84,7 @@ static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb) struct inet6_skb_parm { int iif; - __u16 ra; + __be16 ra; __u16 hop; __u16 dst0; __u16 srcrt; @@ -100,6 +100,7 @@ struct inet6_skb_parm { #define IP6SKB_XFRM_TRANSFORMED 1 #define IP6SKB_FORWARDED 2 #define IP6SKB_REROUTED 4 +#define IP6SKB_ROUTERALERT 8 }; #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb)) -- cgit v1.2.3 From 25d46f43a911b08c5aa8c8fd4fe7fa9b36445068 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= =?UTF-8?q?=E6=98=8E?= Date: Sun, 13 Jan 2013 16:02:06 +0000 Subject: ipv6: Move comment to right place. IN6ADDR_* and in6addr_* are not exported to userspace, and are defined in include/linux/in6.h. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/linux/in6.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/in6.h b/include/linux/in6.h index 9e2ae26fb598..a16e19349ec0 100644 --- a/include/linux/in6.h +++ b/include/linux/in6.h @@ -22,6 +22,10 @@ #include +/* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553 + * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined + * in network byte order, not in host byte order as are the IPv4 equivalents + */ extern const struct in6_addr in6addr_any; #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } } extern const struct in6_addr in6addr_loopback; -- cgit v1.2.3 From 6bf2e5461479c4511f59946a7378db576b04dbc5 Mon Sep 17 00:00:00 2001 From: Nathan Hintz Date: Fri, 11 Jan 2013 22:07:22 -0800 Subject: bcma: fix bcm4716/bcm4748 i2s irqflag The default irqflag assignment for the I2S core on some Broadcom 4716/4748 devices is invalid and needs to be corrected (from the Broadcom SDK). Signed-off-by: Nathan Hintz Acked-by: Hauke Mehrtens Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_mips.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h index 73c7f4b882cc..0d1ea297851a 100644 --- a/include/linux/bcma/bcma_driver_mips.h +++ b/include/linux/bcma/bcma_driver_mips.h @@ -28,6 +28,7 @@ #define BCMA_MIPS_MIPS74K_GPIOEN 0x0048 #define BCMA_MIPS_MIPS74K_CLKCTLST 0x01E0 +#define BCMA_MIPS_OOBSELINA74 0x004 #define BCMA_MIPS_OOBSELOUTA30 0x100 struct bcma_device; -- cgit v1.2.3 From f9a8f83b04e0c362a2fc660dbad980d24af209fc Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 14 Jan 2013 00:52:52 +0000 Subject: net: phy: remove flags argument from phy_{attach, connect, connect_direct} The flags argument of the phy_{attach,connect,connect_direct} functions is then used to assign a struct phy_device dev_flags with its value. All callers but the tg3 driver pass the flag 0, which results in the underlying PHY drivers in drivers/net/phy/ not being able to actually use any of the flags they would set in dev_flags. This patch gets rid of the flags argument, and passes phydev->dev_flags to the internal PHY library call phy_attach_direct() such that drivers which actually modify a phy device dev_flags get the value preserved for use by the underlying phy driver. Acked-by: Kosta Zertsekel Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/phy.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/phy.h b/include/linux/phy.h index 93b3cf77f564..33999adbf8c8 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -506,13 +506,13 @@ struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); int phy_device_register(struct phy_device *phy); int phy_init_hw(struct phy_device *phydev); struct phy_device * phy_attach(struct net_device *dev, - const char *bus_id, u32 flags, phy_interface_t interface); + const char *bus_id, phy_interface_t interface); struct phy_device *phy_find_first(struct mii_bus *bus); int phy_connect_direct(struct net_device *dev, struct phy_device *phydev, - void (*handler)(struct net_device *), u32 flags, + void (*handler)(struct net_device *), phy_interface_t interface); struct phy_device * phy_connect(struct net_device *dev, const char *bus_id, - void (*handler)(struct net_device *), u32 flags, + void (*handler)(struct net_device *), phy_interface_t interface); void phy_disconnect(struct phy_device *phydev); void phy_detach(struct phy_device *phydev); -- cgit v1.2.3 From 3988a4df3499e604a3f2ae979372d27fc5664f77 Mon Sep 17 00:00:00 2001 From: Johan Bjornstedt Date: Fri, 11 Jan 2013 13:12:50 +0000 Subject: ab8500_bm: Skip first CCEOC irq for instant current When enabling the CCEOC irq we might get false interrupt from ab8500-driver due to the latched value will be saved and interpreted as an IRQ when enabled Signed-off-by: Lee Jones Signed-off-by: Johan Bjornstedt Signed-off-by: Henrik Solver Reviewed-by: Karl KOMIEROWSKI Signed-off-by: Anton Vorontsov --- include/linux/mfd/abx500/ab8500-bm.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index 44310c98ee6e..6c6a02e53cd9 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -431,11 +431,18 @@ struct ab8500_fg *ab8500_fg_get(void); int ab8500_fg_inst_curr_blocking(struct ab8500_fg *dev); int ab8500_fg_inst_curr_start(struct ab8500_fg *di); int ab8500_fg_inst_curr_finalize(struct ab8500_fg *di, int *res); +int ab8500_fg_inst_curr_started(struct ab8500_fg *di); int ab8500_fg_inst_curr_done(struct ab8500_fg *di); #else +int ab8500_fg_inst_curr_started(struct ab8500_fg *di) +{ + return 0; +} + int ab8500_fg_inst_curr_done(struct ab8500_fg *di) { + return 0; } static void ab8500_fg_reinit(void) { -- cgit v1.2.3 From ea4024017831d61874351defe8f8c58ae73f8009 Mon Sep 17 00:00:00 2001 From: Marcus Cooper Date: Fri, 11 Jan 2013 13:12:54 +0000 Subject: ab8500_bm: Recharge condition not optimal for battery Today the battery recharge is determined with a voltage threshold. This voltage threshold is only valid when the battery is relaxed. In charging algorithm the voltage read is the loaded battery voltage and no compensation is done to get the relaxed voltage. When maintenance charging is not selected, this makes the recharging condition to almost immediately activate when there is a discharge present on the battery. Depending on which vendor the battery comes from this behavior can wear out the battery much faster than normal. The fuelgauge driver is responsible to monitor the actual battery capacity and is able to estimate the remaining capacity. It is better to use the remaining capacity as a limit to determine when battery should be recharged. Signed-off-by: Lee Jones Signed-off-by: Marcus Cooper Reviewed-by: Hakan BERG Reviewed-by: Jonas ABERG Signed-off-by: Anton Vorontsov --- include/linux/mfd/abx500.h | 6 ++++-- include/linux/mfd/abx500/ab8500-bm.h | 2 ++ 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 4906b1842d2f..0e6e90badfca 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -131,7 +131,7 @@ struct abx500_maxim_parameters { * @nominal_voltage: Nominal voltage of the battery in mV * @termination_vol: max voltage upto which battery can be charged * @termination_curr battery charging termination current in mA - * @recharge_vol battery voltage limit that will trigger a new + * @recharge_cap battery capacity limit that will trigger a new * full charging cycle in the case where maintenan- * -ce charging has been disabled * @normal_cur_lvl: charger current in normal state in mA @@ -160,7 +160,7 @@ struct abx500_battery_type { int nominal_voltage; int termination_vol; int termination_curr; - int recharge_vol; + int recharge_cap; int normal_cur_lvl; int normal_vol_lvl; int maint_a_cur_lvl; @@ -224,6 +224,7 @@ struct abx500_bm_charger_parameters { * @bkup_bat_v voltage which we charge the backup battery with * @bkup_bat_i current which we charge the backup battery with * @no_maintenance indicates that maintenance charging is disabled + * @capacity_scaling indicates whether capacity scaling is to be used * @abx500_adc_therm placement of thermistor, batctrl or battemp adc * @chg_unknown_bat flag to enable charging of unknown batteries * @enable_overshoot flag to enable VBAT overshoot control @@ -254,6 +255,7 @@ struct abx500_bm_data { int bkup_bat_v; int bkup_bat_i; bool no_maintenance; + bool capacity_scaling; bool chg_unknown_bat; bool enable_overshoot; bool auto_trig; diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index 6c6a02e53cd9..fac684a6f346 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -355,6 +355,7 @@ struct ab8500_bm_charger_parameters { * @bkup_bat_v voltage which we charge the backup battery with * @bkup_bat_i current which we charge the backup battery with * @no_maintenance indicates that maintenance charging is disabled + * @capacity_scaling indicates whether capacity scaling is to be used * @adc_therm placement of thermistor, batctrl or battemp adc * @chg_unknown_bat flag to enable charging of unknown batteries * @enable_overshoot flag to enable VBAT overshoot control @@ -383,6 +384,7 @@ struct ab8500_bm_data { int bkup_bat_v; int bkup_bat_i; bool no_maintenance; + bool capacity_scaling; bool chg_unknown_bat; bool enable_overshoot; enum abx500_adc_therm adc_therm; -- cgit v1.2.3 From d36e3e6d50ccdb5cdef6da0a01dedddd317f23fc Mon Sep 17 00:00:00 2001 From: Hakan Berg Date: Fri, 11 Jan 2013 13:12:57 +0000 Subject: ab8500_btemp: Ignore false btemp low interrupt Ignore the low btemp interrupts for ab8500 3.0 and 3.3 Signed-off-by: Lee Jones Signed-off-by: Hakan Berg Reviewed-by: Jonas ABERG Tested-by: Marcus COOPER Signed-off-by: Anton Vorontsov --- include/linux/mfd/abx500/ab8500.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 1cb5698b4d76..9dd9b99099df 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -335,6 +335,11 @@ static inline int is_ab8500_2p0_or_earlier(struct ab8500 *ab) return (is_ab8500(ab) && (ab->chip_id <= AB8500_CUT2P0)); } +static inline int is_ab8500_3p3_or_earlier(struct ab8500 *ab) +{ + return (is_ab8500(ab) && (ab->chip_id <= AB8500_CUT3P3)); +} + /* exclude also ab8505, ab9540... */ static inline int is_ab8500_2p0(struct ab8500 *ab) { -- cgit v1.2.3 From 74a8e349b1c882e34419877207ae850ed87dddf7 Mon Sep 17 00:00:00 2001 From: Hakan Berg Date: Fri, 11 Jan 2013 13:12:58 +0000 Subject: ab8500_bm: Adds support for Car/Travel Adapters The Travel and Carkit adapter should be handled directly by the charger driver. Signed-off-by: Lee Jones Signed-off-by: Marcus Cooper Reviewed-by: Jonas ABERG Signed-off-by: Anton Vorontsov --- include/linux/mfd/abx500/ab8500-bm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index fac684a6f346..e2a1e6d84f72 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -23,6 +23,7 @@ * Bank : 0x5 */ #define AB8500_USB_LINE_STAT_REG 0x80 +#define AB8500_USB_LINK1_STAT_REG 0x94 /* * Charger / status register offfsets -- cgit v1.2.3 From 1e817fb62cd185a2232ad4302579491805609489 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Mon, 19 Nov 2012 10:26:16 -0800 Subject: time: create __getnstimeofday for WARNless calls The pstore RAM backend can get called during resume, and must be defensive against a suspended time source. Expose getnstimeofday logic that returns an error instead of a WARN. This can be detected and the timestamp can be zeroed out. Reported-by: Doug Anderson Cc: John Stultz Cc: Anton Vorontsov Signed-off-by: Kees Cook Signed-off-by: John Stultz --- include/linux/time.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/time.h b/include/linux/time.h index 4d358e9d10f1..0015aea4c4a7 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -158,6 +158,7 @@ extern int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue); extern unsigned int alarm_setitimer(unsigned int seconds); extern int do_getitimer(int which, struct itimerval *value); +extern int __getnstimeofday(struct timespec *tv); extern void getnstimeofday(struct timespec *tv); extern void getrawmonotonic(struct timespec *ts); extern void getnstime_raw_and_real(struct timespec *ts_raw, -- cgit v1.2.3 From 023f333a99cee9b5cd3268ff87298eb01a31f78e Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Mon, 17 Dec 2012 14:30:53 -0700 Subject: NTP: Add a CONFIG_RTC_SYSTOHC configuration The purpose of this option is to allow ARM/etc systems that rely on the class RTC subsystem to have the same kind of automatic NTP based synchronization that we have on PC platforms. Today ARM does not implement update_persistent_clock and makes extensive use of the class RTC system. When enabled CONFIG_RTC_SYSTOHC will provide a generic rtc_update_persistent_clock that stores the current time in the RTC and is intended complement the existing CONFIG_RTC_HCTOSYS option that loads the RTC at boot. Like with RTC_HCTOSYS the platform's update_persistent_clock is used first, if it works. Platforms with mixed class RTC and non-RTC drivers need to return ENODEV when class RTC should be used. Such an update for PPC is included in this patch. Long term, implementations of update_persistent_clock should migrate to proper class RTC drivers and use CONFIG_RTC_SYSTOHC instead. Tested on ARM kirkwood and PPC405 Signed-off-by: Jason Gunthorpe Signed-off-by: John Stultz --- include/linux/rtc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 9531845c419f..11d05f9fe8b6 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -138,6 +138,7 @@ extern void rtc_device_unregister(struct rtc_device *rtc); extern int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm); extern int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm); extern int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs); +extern int rtc_set_ntp_time(struct timespec now); int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm); extern int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alrm); -- cgit v1.2.3 From 31ade30692dc9680bfc95700d794818fa3f754ac Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Wed, 16 Jan 2013 00:09:47 +0800 Subject: timekeeping: Add persistent_clock_exist flag In current kernel, there are several places which need to check whether there is a persistent clock for the platform. Current check is done by calling the read_persistent_clock() and validating its return value. So one optimization is to do the check only once in timekeeping_init(), and use a flag persistent_clock_exist to record it. v2: Add a has_persistent_clock() helper function, as suggested by John. Cc: Thomas Gleixner Cc: John Stultz Signed-off-by: Feng Tang Signed-off-by: John Stultz --- include/linux/time.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/time.h b/include/linux/time.h index 0015aea4c4a7..dfbc4e82e8ba 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -115,6 +115,12 @@ static inline bool timespec_valid_strict(const struct timespec *ts) return true; } +extern bool persistent_clock_exist; +static inline bool has_persistent_clock(void) +{ + return persistent_clock_exist; +} + extern void read_persistent_clock(struct timespec *ts); extern void read_boot_clock(struct timespec *ts); extern int update_persistent_clock(struct timespec now); -- cgit v1.2.3 From 05ad717c77b1b8e98a1dd768c3700036d634629e Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Wed, 16 Jan 2013 00:09:49 +0800 Subject: timekeeping: Add CONFIG_HAS_PERSISTENT_CLOCK option Make the persistent clock check a kernel config option, so that some platform can explicitely select it, also make CONFIG_RTC_HCTOSYS and RTC_SYSTOHC depend on its non-existence, which could prevent the persistent clock and RTC code from doing similar thing twice during system's init/suspend/resume phases. If the CONFIG_HAS_PERSISTENT_CLOCK=n, then no change happens for kernel which still does the persistent clock check in timekeeping_init(). Cc: Thomas Gleixner Suggested-by: John Stultz Signed-off-by: Feng Tang [jstultz: Added dependency for RTC_SYSTOHC as well] Signed-off-by: John Stultz --- include/linux/time.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/time.h b/include/linux/time.h index dfbc4e82e8ba..369b6e3b87d8 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -116,10 +116,15 @@ static inline bool timespec_valid_strict(const struct timespec *ts) } extern bool persistent_clock_exist; + +#ifdef CONFIG_HAS_PERSISTENT_CLOCK +#define has_persistent_clock() true +#else static inline bool has_persistent_clock(void) { return persistent_clock_exist; } +#endif extern void read_persistent_clock(struct timespec *ts); extern void read_boot_clock(struct timespec *ts); -- cgit v1.2.3 From 7266507d89991fa1e989283e4e032c6d9357fe26 Mon Sep 17 00:00:00 2001 From: Kevin Cernekee Date: Mon, 17 Dec 2012 18:33:58 +0000 Subject: netfilter: nf_ct_sip: support Cisco 7941/7945 IP phones Most SIP devices use a source port of 5060/udp on SIP requests, so the response automatically comes back to port 5060: phone_ip:5060 -> proxy_ip:5060 REGISTER proxy_ip:5060 -> phone_ip:5060 100 Trying The newer Cisco IP phones, however, use a randomly chosen high source port for the SIP request but expect the response on port 5060: phone_ip:49173 -> proxy_ip:5060 REGISTER proxy_ip:5060 -> phone_ip:5060 100 Trying Standard Linux NAT, with or without nf_nat_sip, will send the reply back to port 49173, not 5060: phone_ip:49173 -> proxy_ip:5060 REGISTER proxy_ip:5060 -> phone_ip:49173 100 Trying But the phone is not listening on 49173, so it will never see the reply. This patch modifies nf_*_sip to work around this quirk by extracting the SIP response port from the Via: header, iff the source IP in the packet header matches the source IP in the SIP request. Signed-off-by: Kevin Cernekee Acked-by: Eric Dumazet Cc: Patrick McHardy Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter/nf_conntrack_sip.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h index 387bdd02945d..ba7f571a2b1c 100644 --- a/include/linux/netfilter/nf_conntrack_sip.h +++ b/include/linux/netfilter/nf_conntrack_sip.h @@ -4,12 +4,15 @@ #include +#include + #define SIP_PORT 5060 #define SIP_TIMEOUT 3600 struct nf_ct_sip_master { unsigned int register_cseq; unsigned int invite_cseq; + __be16 forced_dport; }; enum sip_expectation_classes { -- cgit v1.2.3 From f868ef995b32f0f08d7b6ce700bbe25de3ad65ac Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Tue, 8 Jan 2013 22:43:12 +0100 Subject: pinctrl: pinconf-generic: add drive strength parameter Some pin configurations IP allows to set the current output to the pin. This patch adds such a parameter to the pinconf-generic mechanism. This parameter takes as argument the drive strength in mA. Signed-off-by: Maxime Ripard Signed-off-by: Linus Walleij --- include/linux/pinctrl/pinconf-generic.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index b23d99da3b4b..40d7bb9c7562 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -46,6 +46,8 @@ * @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source * (open emitter). Sending this config will enabale open drain mode, the * argument is ignored. + * @PIN_CONFIG_DRIVE_STRENGTH: the pin will output the current passed as + * argument. The argument is in mA. * @PIN_CONFIG_INPUT_SCHMITT_DISABLE: disable schmitt-trigger mode on the pin. * @PIN_CONFIG_INPUT_SCHMITT: this will configure an input pin to run in * schmitt-trigger mode. If the schmitt-trigger has adjustable hysteresis, @@ -76,6 +78,7 @@ enum pin_config_param { PIN_CONFIG_DRIVE_PUSH_PULL, PIN_CONFIG_DRIVE_OPEN_DRAIN, PIN_CONFIG_DRIVE_OPEN_SOURCE, + PIN_CONFIG_DRIVE_STRENGTH, PIN_CONFIG_INPUT_SCHMITT_DISABLE, PIN_CONFIG_INPUT_SCHMITT, PIN_CONFIG_INPUT_DEBOUNCE, -- cgit v1.2.3 From bb813f4c933ae9f887a014483690d5f8b8ec05e1 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 18 Jan 2013 14:05:56 -0800 Subject: init, block: try to load default elevator module early during boot This patch adds default module loading and uses it to load the default block elevator. During boot, it's called right after initramfs or initrd is made available and right before control is passed to userland. This ensures that as long as the modules are available in the usual places in initramfs, initrd or the root filesystem, the default modules are loaded as soon as possible. This will replace the on-demand elevator module loading from elevator init path. v2: Fixed build breakage when !CONFIG_BLOCK. Reported by kbuild test robot. Signed-off-by: Tejun Heo Cc: Jens Axboe Cc: Arjan van de Ven Cc: Linus Torvalds Cc: Alex Riesen Cc: Fengguang We --- include/linux/elevator.h | 5 +++++ include/linux/init.h | 1 + 2 files changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/elevator.h b/include/linux/elevator.h index c03af7687bb4..186620631750 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -138,6 +138,7 @@ extern void elv_drain_elevator(struct request_queue *); /* * io scheduler registration */ +extern void __init load_default_elevator_module(void); extern int elv_register(struct elevator_type *); extern void elv_unregister(struct elevator_type *); @@ -206,5 +207,9 @@ enum { INIT_LIST_HEAD(&(rq)->csd.list); \ } while (0) +#else /* CONFIG_BLOCK */ + +static inline void load_default_elevator_module(void) { } + #endif /* CONFIG_BLOCK */ #endif diff --git a/include/linux/init.h b/include/linux/init.h index a799273714ac..9230c9408d8b 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -161,6 +161,7 @@ extern unsigned int reset_devices; /* used by init/main.c */ void setup_arch(char **); void prepare_namespace(void); +void __init load_default_modules(void); extern void (*late_time_init)(void); -- cgit v1.2.3 From 84b233adcca3cacd5cfa8013a5feda7a3db4a9af Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 18 Jan 2013 14:05:56 -0800 Subject: workqueue: implement current_is_async() This function queries whether %current is an async worker executing an async item. This will be used to implement warning on synchronous request_module() from async workers. Signed-off-by: Tejun Heo --- include/linux/async.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/async.h b/include/linux/async.h index 7a24fe9b44b4..345169cfa304 100644 --- a/include/linux/async.h +++ b/include/linux/async.h @@ -52,4 +52,5 @@ extern void async_synchronize_full_domain(struct async_domain *domain); extern void async_synchronize_cookie(async_cookie_t cookie); extern void async_synchronize_cookie_domain(async_cookie_t cookie, struct async_domain *domain); +extern bool current_is_async(void); #endif -- cgit v1.2.3 From d79beb39922e41083e8bbbb3de084a6ca958e25f Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 19 Jan 2013 14:29:31 +0100 Subject: ACPI / PM: Fix build for unusual combination of Kconfig options CONFIG_PM_SLEEP may be set even if CONFIG_ACPI_SLEEP is unset, although that is unusual. For this reason, make the headers of functions built for both CONFIG_ACPI and CONFIG_PM_SLEEP set simultaneously depend on that combination of Kconfig options instead of CONFIG_ACPI_SLEEP. This fixes a build problem reported by Randy Dunlap. Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 8c1d6f2a2193..5f2be833aaf8 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -511,7 +511,7 @@ static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } #endif -#ifdef CONFIG_ACPI_SLEEP +#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) int acpi_dev_suspend_late(struct device *dev); int acpi_dev_resume_early(struct device *dev); int acpi_subsys_prepare(struct device *dev); -- cgit v1.2.3 From d6e99abb424a916ecbb127dba065a379b460a062 Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Fri, 18 Jan 2013 15:31:06 +0800 Subject: pinctrl: core: get devname from pinctrl_dev Add new function to get devname from pinctrl_dev. pinctrl_dev_get_name() can only get pinctrl description name. If we want to use gpio driver to find pinctrl device node, we need to fetch the pinctrl device name. Signed-off-by: Haojian Zhuang Signed-off-by: Linus Walleij --- include/linux/pinctrl/pinctrl.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h index 04d6700d99af..778804df293f 100644 --- a/include/linux/pinctrl/pinctrl.h +++ b/include/linux/pinctrl/pinctrl.h @@ -154,6 +154,7 @@ struct pinctrl_dev *of_pinctrl_get(struct device_node *np) #endif /* CONFIG_OF */ extern const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev); +extern const char *pinctrl_dev_get_devname(struct pinctrl_dev *pctldev); extern void *pinctrl_dev_get_drvdata(struct pinctrl_dev *pctldev); #else -- cgit v1.2.3 From 684697cbbcd076b8fde78d8863e341700533b542 Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Fri, 18 Jan 2013 15:31:15 +0800 Subject: pinctrl: generic: add slew rate config parameter Add PIN_CONFIG_SLEW_RATE parameter into pinconf-generic driver. Signed-off-by: Haojian Zhuang Signed-off-by: Linus Walleij --- include/linux/pinctrl/pinconf-generic.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 40d7bb9c7562..3e7909aa5c03 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -60,6 +60,9 @@ * @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power * supplies, the argument to this parameter (on a custom format) tells * the driver which alternative power source to use. + * @PIN_CONFIG_SLEW_RATE: if the pin can select slew rate, the argument to + * this parameter (on a custom format) tells the driver which alternative + * slew rate to use. * @PIN_CONFIG_LOW_POWER_MODE: this will configure the pin for low power * operation, if several modes of operation are supported these can be * passed in the argument on a custom form, else just use argument 1 @@ -83,6 +86,7 @@ enum pin_config_param { PIN_CONFIG_INPUT_SCHMITT, PIN_CONFIG_INPUT_DEBOUNCE, PIN_CONFIG_POWER_SOURCE, + PIN_CONFIG_SLEW_RATE, PIN_CONFIG_LOW_POWER_MODE, PIN_CONFIG_OUTPUT, PIN_CONFIG_END = 0x7FFF, -- cgit v1.2.3 From 418c59e49ddc77fcb7054f2c8d52c9d47403b43e Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 14 Dec 2012 13:15:08 -0500 Subject: tracing: Fix sparse warning with is_signed_type() macro Sparse complains when is_signed_type() is used on a pointer. This macro is needed for the format output used for ftrace and perf, to know if a binary field is a signed type or not. The is_signed_type() macro is used against all fields that are recorded by events to automate the operation. The problem sparse has is with the current way is_signed_type() works: ((type)-1 < 0) If "type" is a poiner, than sparse does not like it being compared to an integer (zero). The simple fix is to just give zero the same type. The runtime result stays the same. Reported-by: Robert Jarzmik Signed-off-by: Steven Rostedt --- include/linux/ftrace_event.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index a3d489531d83..43ef8b6cce7f 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -272,7 +272,7 @@ extern int trace_define_field(struct ftrace_event_call *call, const char *type, extern int trace_add_event_call(struct ftrace_event_call *call); extern void trace_remove_event_call(struct ftrace_event_call *call); -#define is_signed_type(type) (((type)(-1)) < 0) +#define is_signed_type(type) (((type)(-1)) < (type)0) int trace_set_clr_event(const char *system, const char *event, int set); -- cgit v1.2.3 From 0f1ac8fd254b6c3e77950a1c4ee67be5dc88f7e0 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 15 Jan 2013 22:11:19 -0500 Subject: tracing/lockdep: Disable lockdep first in entering NMI When function tracing with either debug locks enabled or tracing preempt disabled, the add_preempt_count() is traced. This is an issue with lockdep and function tracing. As function tracing can disable interrupts, and lockdep records that change, lockdep may not be able to handle this recursion if it happens from an NMI context. The first thing that an NMI does is: #define nmi_enter() \ do { \ ftrace_nmi_enter(); \ BUG_ON(in_nmi()); \ add_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET); \ lockdep_off(); \ rcu_nmi_enter(); \ trace_hardirq_enter(); \ } while (0) When the add_preempt_count() is traced, and the tracing callback disables interrupts, it will jump into the lockdep code. There's some places in lockdep that can't handle this re-entrance, and causes lockdep to fail. As the lockdep_off() (and lockdep_on) is a simple: void lockdep_off(void) { current->lockdep_recursion++; } and is never traced, it can be called first in nmi_enter() and lockdep_on() last in nmi_exit(). Cc: Peter Zijlstra Signed-off-by: Steven Rostedt --- include/linux/hardirq.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 624ef3f45c8e..57bfdce8fb90 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -180,10 +180,10 @@ extern void irq_exit(void); #define nmi_enter() \ do { \ + lockdep_off(); \ ftrace_nmi_enter(); \ BUG_ON(in_nmi()); \ add_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET); \ - lockdep_off(); \ rcu_nmi_enter(); \ trace_hardirq_enter(); \ } while (0) @@ -192,10 +192,10 @@ extern void irq_exit(void); do { \ trace_hardirq_exit(); \ rcu_nmi_exit(); \ - lockdep_on(); \ BUG_ON(!in_nmi()); \ sub_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET); \ ftrace_nmi_exit(); \ + lockdep_on(); \ } while (0) #endif /* LINUX_HARDIRQ_H */ -- cgit v1.2.3 From 06aeaaeabf69da4a3e86df532425640f51b01cef Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Fri, 28 Sep 2012 17:15:17 +0900 Subject: ftrace: Move ARCH_SUPPORTS_FTRACE_SAVE_REGS in Kconfig Move SAVE_REGS support flag into Kconfig and rename it to CONFIG_DYNAMIC_FTRACE_WITH_REGS. This also introduces CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS which indicates the architecture depending part of ftrace has a code that saves full registers. On the other hand, CONFIG_DYNAMIC_FTRACE_WITH_REGS indicates the code is enabled. Link: http://lkml.kernel.org/r/20120928081516.3560.72534.stgit@ltc138.sdl.hitachi.co.jp Cc: Ingo Molnar Cc: Ananth N Mavinakayanahalli Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Frederic Weisbecker Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt --- include/linux/ftrace.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 92691d85c320..e5ca8ef50e9b 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -74,7 +74,7 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip, * SAVE_REGS - The ftrace_ops wants regs saved at each function called * and passed to the callback. If this flag is set, but the * architecture does not support passing regs - * (ARCH_SUPPORTS_FTRACE_SAVE_REGS is not defined), then the + * (CONFIG_DYNAMIC_FTRACE_WITH_REGS is not defined), then the * ftrace_ops will fail to register, unless the next flag * is set. * SAVE_REGS_IF_SUPPORTED - This is the same as SAVE_REGS, but if the @@ -418,7 +418,7 @@ void ftrace_modify_all_code(int command); #endif #ifndef FTRACE_REGS_ADDR -#ifdef ARCH_SUPPORTS_FTRACE_SAVE_REGS +#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS # define FTRACE_REGS_ADDR ((unsigned long)ftrace_regs_caller) #else # define FTRACE_REGS_ADDR FTRACE_ADDR @@ -480,7 +480,7 @@ extern int ftrace_make_nop(struct module *mod, */ extern int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr); -#ifdef ARCH_SUPPORTS_FTRACE_SAVE_REGS +#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS /** * ftrace_modify_call - convert from one addr to another (no nop) * @rec: the mcount call site record -- cgit v1.2.3 From e7dbfe349d12eabb7783b117e0c115f6f3d9ef9e Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Fri, 28 Sep 2012 17:15:20 +0900 Subject: kprobes/x86: Move ftrace-based kprobe code into kprobes-ftrace.c Split ftrace-based kprobes code from kprobes, and introduce CONFIG_(HAVE_)KPROBES_ON_FTRACE Kconfig flags. For the cleanup reason, this also moves kprobe_ftrace check into skip_singlestep. Link: http://lkml.kernel.org/r/20120928081520.3560.25624.stgit@ltc138.sdl.hitachi.co.jp Cc: Ingo Molnar Cc: Ananth N Mavinakayanahalli Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: Frederic Weisbecker Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt --- include/linux/kprobes.h | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 23755ba42abc..4b6ef4d33cc2 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -49,16 +49,6 @@ #define KPROBE_REENTER 0x00000004 #define KPROBE_HIT_SSDONE 0x00000008 -/* - * If function tracer is enabled and the arch supports full - * passing of pt_regs to function tracing, then kprobes can - * optimize on top of function tracing. - */ -#if defined(CONFIG_FUNCTION_TRACER) && defined(ARCH_SUPPORTS_FTRACE_SAVE_REGS) \ - && defined(ARCH_SUPPORTS_KPROBES_ON_FTRACE) -# define KPROBES_CAN_USE_FTRACE -#endif - /* Attach to insert probes on any functions which should be ignored*/ #define __kprobes __attribute__((__section__(".kprobes.text"))) @@ -316,7 +306,7 @@ extern int proc_kprobes_optimization_handler(struct ctl_table *table, #endif #endif /* CONFIG_OPTPROBES */ -#ifdef KPROBES_CAN_USE_FTRACE +#ifdef CONFIG_KPROBES_ON_FTRACE extern void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *ops, struct pt_regs *regs); extern int arch_prepare_kprobe_ftrace(struct kprobe *p); -- cgit v1.2.3 From bbb923a4c2d17ebd5ec34755fe19a33914cbd86f Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Mon, 21 Jan 2013 06:00:25 +0000 Subject: mcast: define and use MRT[6]_MAX in ip[6]_mroute_opt() This will ease further addition of new MRT[6]_* values and avoid to update in6.h each time. Note that we reduce the maximum value from 210 to 209, but 210 does not match any known value in ip[6]_mroute_setsockopt(). Signed-off-by: Nicolas Dichtel Acked-by: David L Stevens Signed-off-by: David S. Miller --- include/linux/mroute.h | 2 +- include/linux/mroute6.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mroute.h b/include/linux/mroute.h index ea00d9162ee5..79aaa9fc1a15 100644 --- a/include/linux/mroute.h +++ b/include/linux/mroute.h @@ -9,7 +9,7 @@ #ifdef CONFIG_IP_MROUTE static inline int ip_mroute_opt(int opt) { - return (opt >= MRT_BASE) && (opt <= MRT_BASE + 10); + return (opt >= MRT_BASE) && (opt <= MRT_MAX); } #else static inline int ip_mroute_opt(int opt) diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h index a223561ba12e..66982e764051 100644 --- a/include/linux/mroute6.h +++ b/include/linux/mroute6.h @@ -10,7 +10,7 @@ #ifdef CONFIG_IPV6_MROUTE static inline int ip6_mroute_opt(int opt) { - return (opt >= MRT6_BASE) && (opt <= MRT6_BASE + 10); + return (opt >= MRT6_BASE) && (opt <= MRT6_MAX); } #else static inline int ip6_mroute_opt(int opt) -- cgit v1.2.3 From fa0879e37b59e8e3f130a30a9e6fa515717c5bdd Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Mon, 21 Jan 2013 01:17:22 +0000 Subject: net: split eth_mac_addr for better error handling When we set mac address, software mac address in system and hardware mac address all need to be updated. Current eth_mac_addr() doesn't allow callers to implement error handling nicely. This patch split eth_mac_addr() to prepare part and real commit part, then we can prepare first, and try to change hardware address, then do the real commit if hardware address is set successfully. Signed-off-by: Stefan Hajnoczi Signed-off-by: Amos Kong Signed-off-by: David S. Miller --- include/linux/etherdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 1a43e1b4f7ad..c623861964e4 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -40,6 +40,8 @@ extern int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh, extern void eth_header_cache_update(struct hh_cache *hh, const struct net_device *dev, const unsigned char *haddr); +extern int eth_prepare_mac_addr_change(struct net_device *dev, void *p); +extern void eth_commit_mac_addr_change(struct net_device *dev, void *p); extern int eth_mac_addr(struct net_device *dev, void *p); extern int eth_change_mtu(struct net_device *dev, int new_mtu); extern int eth_validate_addr(struct net_device *dev); -- cgit v1.2.3 From b000c8065a92b0fe0e1694f41b2c8d8ba7b7b1ec Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 18 Jan 2013 10:31:20 -0500 Subject: tracing: Remove the extra 4 bytes of padding in events Due to a userspace issue with PowerTop v2beta, which hardcoded the offset of event fields that it was using, it broke when we removed the Big Kernel Lock counter from the event header. (commit e6e1e2593 "tracing: Remove lock_depth from event entry") Because this broke userspace, it was determined that we must keep those 4 bytes around. (commit a3a4a5acd "Regression: partial revert "tracing: Remove lock_depth from event entry"") This unfortunately wastes space in the ring buffer. 4 bytes per event, where a lot of events are just 24 bytes. That's 16% of the buffer wasted. A million events will add 4 megs of white space into the buffer. It was later noticed that PowerTop v2beta could not work on systems where the kernel was 64 bit but the userspace was 32 bits. The reason was because the offsets are different between the two and the hard coded offset of one would not work with the other. With PowerTop v2 final, it implemented the same interface that both perf and trace-cmd use. That is, it reads the format file of the event to find the offsets of the fields it needs. This fixes the problem with running powertop on a 32 bit userspace running on a 64 bit kernel. It also no longer requires the 4 byte padding. As PowerTop v2 has been out for a while, and is included in all major distributions, it is time that we can safely remove the 4 bytes of padding. Users of PowerTop v2beta should upgrade to PowerTop v2 final. Cc: Linus Torvalds Acked-by: Arjan van de Ven Signed-off-by: Steven Rostedt --- include/linux/ftrace_event.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 43ef8b6cce7f..6f8d0b77006b 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -49,7 +49,6 @@ struct trace_entry { unsigned char flags; unsigned char preempt_count; int pid; - int padding; }; #define FTRACE_MAX_EVENT \ -- cgit v1.2.3 From 01ec8c5423901c4fe8d97f786ed9a0c31215b53a Mon Sep 17 00:00:00 2001 From: Michel JAOUEN Date: Thu, 26 Apr 2012 10:00:04 +0200 Subject: pm2301: Provide u9540 support for the pm2301 charger AC charger driver for the DB9540 based platforms. Signed-off-by: Rajkumar Kasirajan Signed-off-by: Loic Pallardy Signed-off-by: Lee Jones Reviewed-by: Michel JAOUEN Tested-by: Michel JAOUEN --- include/linux/mfd/abx500/ab8500-bm.h | 2 ++ include/linux/mfd/abx500/ux500_chargalg.h | 2 ++ include/linux/pm2301_charger.h | 60 +++++++++++++++++++++++++++++++ 3 files changed, 64 insertions(+) create mode 100644 include/linux/pm2301_charger.h (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index e2a1e6d84f72..a03d4fdf9c2c 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -406,6 +406,8 @@ struct ab8500_charger_platform_data { char **supplied_to; size_t num_supplicants; bool autopower_cfg; + bool ac_enabled; + bool usb_enabled; }; struct ab8500_btemp_platform_data { diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index 9b07725750c9..5b77a610c6b6 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -27,12 +27,14 @@ struct ux500_charger_ops { * @ops ux500 charger operations * @max_out_volt maximum output charger voltage in mV * @max_out_curr maximum output charger current in mA + * @enabled indicates if this charger is used or not */ struct ux500_charger { struct power_supply psy; struct ux500_charger_ops ops; int max_out_volt; int max_out_curr; + bool enabled; }; #endif diff --git a/include/linux/pm2301_charger.h b/include/linux/pm2301_charger.h new file mode 100644 index 000000000000..16bb1d34b9d5 --- /dev/null +++ b/include/linux/pm2301_charger.h @@ -0,0 +1,60 @@ +/* + * PM2301 charger driver. + * + * Copyright (C) 2012 ST Ericsson Corporation + * + * Contact: Olivier LAUNAY (olivier.launay@stericsson.com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_PM2301_H +#define __LINUX_PM2301_H + +/** + * struct pm2xxx_bm_charger_parameters - Charger specific parameters + * @ac_volt_max: maximum allowed AC charger voltage in mV + * @ac_curr_max: maximum allowed AC charger current in mA + */ +struct pm2xxx_bm_charger_parameters { + int ac_volt_max; + int ac_curr_max; +}; + +/** + * struct pm2xxx_bm_data - pm2xxx battery management data + * @enable_overshoot flag to enable VBAT overshoot control + * @chg_params charger parameters + */ +struct pm2xxx_bm_data { + bool enable_overshoot; + const struct pm2xxx_bm_charger_parameters *chg_params; +}; + +struct pm2xxx_charger_platform_data { + char **supplied_to; + size_t num_supplicants; + int i2c_bus; + const char *label; + int irq_number; + int irq_type; +}; + +struct pm2xxx_platform_data { + struct pm2xxx_charger_platform_data *wall_charger; + struct pm2xxx_bm_data *battery; +}; + +#endif /* __LINUX_PM2301_H */ -- cgit v1.2.3 From e6aac611b86956bdd981f30e8862ee2ac8aaf664 Mon Sep 17 00:00:00 2001 From: Michel JAOUEN Date: Tue, 22 May 2012 15:46:46 +0200 Subject: ab8500-btemp: Adaptation to AB8505 and AB9540 platforms Add AB9540 and AB8505 support to ABx500 BTEMP driver. Signed-off-by: Rajkumar Kasirajan Signed-off-by: Lee Jones Reviewed-by: Michel JAOUEN Reviewed-by: Marcus COOPER Reviewed-by: Jonas ABERG Tested-by: Michel JAOUEN Tested-by: Jonas ABERG --- include/linux/mfd/abx500/ab8500-bm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index a03d4fdf9c2c..ec796c700e4c 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -226,6 +226,8 @@ /* BatCtrl Current Source Constants */ #define BAT_CTRL_7U_ENA 0x01 #define BAT_CTRL_20U_ENA 0x02 +#define BAT_CTRL_18U_ENA 0x01 +#define BAT_CTRL_16U_ENA 0x02 #define BAT_CTRL_CMP_ENA 0x04 #define FORCE_BAT_CTRL_CMP_HIGH 0x08 #define BAT_CTRL_PULL_UP_ENA 0x10 -- cgit v1.2.3 From e07a56453b14b929cf01bf032cc3e3220094609c Mon Sep 17 00:00:00 2001 From: Loic Pallardy Date: Thu, 10 May 2012 15:33:56 +0200 Subject: pm2301: Update watchdog for pm2xxx support AB and PMxxx doesn't have same watchdog refresh period. Add watchdog to refresh period parameters in x500 charger structure, this should kick watchdog every 30sec. The AC charging should also kick both pm2xxx and the AB charger watchdog. Signed-off-by: Rajkumar Kasirajan Signed-off-by: Loic Pallardy Signed-off-by: Lee Jones Reviewed-by: Michel JAOUEN Reviewed-by: Marcus COOPER Reviewed-by: Jonas ABERG Tested-by: Michel JAOUEN Tested-by: Jonas ABERG --- include/linux/mfd/abx500/ux500_chargalg.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ux500_chargalg.h b/include/linux/mfd/abx500/ux500_chargalg.h index 5b77a610c6b6..d43ac0f35526 100644 --- a/include/linux/mfd/abx500/ux500_chargalg.h +++ b/include/linux/mfd/abx500/ux500_chargalg.h @@ -28,13 +28,16 @@ struct ux500_charger_ops { * @max_out_volt maximum output charger voltage in mV * @max_out_curr maximum output charger current in mA * @enabled indicates if this charger is used or not + * @external external charger unit (pm2xxx) */ struct ux500_charger { struct power_supply psy; struct ux500_charger_ops ops; int max_out_volt; int max_out_curr; + int wdt_refresh; bool enabled; + bool external; }; #endif -- cgit v1.2.3 From 3988043b0ee1104d4cca7c57bbc23b16ea798b6f Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 23 Jan 2013 14:38:15 +0000 Subject: pm2301: LPN mode control support The AC charger plug-in detection while booting causes I2C read failure if AC charger is not connected. Now the LPN pin is enabled for every PM2301 register access, which solves the issue. Signed-off-by: Rupesh Kumar Signed-off-by: Lee Jones Reviewed-by: Marcus COOPER Reviewed-by: Vijaya Kumar K-1 Reviewed-by: Rabin VINCENT Reviewed-by: Jonas ABERG Tested-by: Jonas ABERG --- include/linux/pm2301_charger.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pm2301_charger.h b/include/linux/pm2301_charger.h index 16bb1d34b9d5..fc3f026922ae 100644 --- a/include/linux/pm2301_charger.h +++ b/include/linux/pm2301_charger.h @@ -49,6 +49,7 @@ struct pm2xxx_charger_platform_data { int i2c_bus; const char *label; int irq_number; + unsigned int lpn_gpio; int irq_type; }; -- cgit v1.2.3 From 0ed5107fa86013c91b1752230d44b79dffee0cda Mon Sep 17 00:00:00 2001 From: Jonas Aaberg Date: Fri, 11 May 2012 12:42:25 +0200 Subject: ab8500-charger: Do not touch VBUSOVV bits Do not touch the VBUSOVV in USBCHTRL2 when running on AB8505. Signed-off-by: Jonas Aaberg Signed-off-by: Lee Jones Reviewed-by: Marcus COOPER Tested-by: Mian Yousaf KAUKAB --- include/linux/mfd/abx500/ab8500.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 9dd9b99099df..b9a6a847ff61 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -346,4 +346,23 @@ static inline int is_ab8500_2p0(struct ab8500 *ab) return (is_ab8500(ab) && (ab->chip_id == AB8500_CUT2P0)); } +static inline int is_ab8505_1p0_or_earlier(struct ab8500 *ab) +{ + return (is_ab8505(ab) && (ab->chip_id <= AB8500_CUT1P0)); +} + +static inline int is_ab8505_2p0(struct ab8500 *ab) +{ + return (is_ab8505(ab) && (ab->chip_id == AB8500_CUT2P0)); +} + +static inline int is_ab9540_1p0_or_earlier(struct ab8500 *ab) +{ + return (is_ab9540(ab) && (ab->chip_id <= AB8500_CUT1P0)); +} + +static inline int is_ab9540_2p0(struct ab8500 *ab) +{ + return (is_ab9540(ab) && (ab->chip_id == AB8500_CUT2P0)); +} #endif /* MFD_AB8500_H */ -- cgit v1.2.3 From 97034a1e042d4316a83a3f68d61edf6c42e3f265 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 17 Jan 2013 16:08:42 +0000 Subject: ab8500-bm: Remove individual [charger|btemp|fg|chargalg] pdata structures None of the aforementioned components have their own dedicated platform data structures anymore. Instead they have all been merged into one big Battery Management container. Let's remove them and place all the nice newly added attributes into the core container. Signed-off-by: Lee Jones --- include/linux/mfd/abx500.h | 3 +++ include/linux/mfd/abx500/ab8500-bm.h | 22 ---------------------- 2 files changed, 3 insertions(+), 22 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 0e6e90badfca..1beaa056f195 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -254,6 +254,9 @@ struct abx500_bm_data { int usb_safety_tmr_h; int bkup_bat_v; int bkup_bat_i; + bool autopower_cfg; + bool ac_enabled; + bool usb_enabled; bool no_maintenance; bool capacity_scaling; bool chg_unknown_bat; diff --git a/include/linux/mfd/abx500/ab8500-bm.h b/include/linux/mfd/abx500/ab8500-bm.h index ec796c700e4c..345bc159f978 100644 --- a/include/linux/mfd/abx500/ab8500-bm.h +++ b/include/linux/mfd/abx500/ab8500-bm.h @@ -404,28 +404,6 @@ struct ab8500_bm_data { const struct ab8500_fg_parameters *fg_params; }; -struct ab8500_charger_platform_data { - char **supplied_to; - size_t num_supplicants; - bool autopower_cfg; - bool ac_enabled; - bool usb_enabled; -}; - -struct ab8500_btemp_platform_data { - char **supplied_to; - size_t num_supplicants; -}; - -struct ab8500_fg_platform_data { - char **supplied_to; - size_t num_supplicants; -}; - -struct ab8500_chargalg_platform_data { - char **supplied_to; - size_t num_supplicants; -}; struct ab8500_btemp; struct ab8500_gpadc; struct ab8500_fg; -- cgit v1.2.3 From ab78029ecc347debbd737f06688d788bd9d60c1d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 22 Jan 2013 10:56:14 -0700 Subject: drivers/pinctrl: grab default handles from device core This makes the device core auto-grab the pinctrl handle and set the "default" (PINCTRL_STATE_DEFAULT) state for every device that is present in the device model right before probe. This will account for the lion's share of embedded silicon devcies. A modification of the semantics for pinctrl_get() is also done: previously if the pinctrl handle for a certain device was already taken, the pinctrl core would return an error. Now, since the core may have already default-grabbed the handle and set its state to "default", if the handle was already taken, this will be disregarded and the located, previously instanitated handle will be returned to the caller. This way all code in drivers explicitly requesting their pinctrl handlers will still be functional, and drivers that want to explicitly retrieve and switch their handles can still do that. But if the desired functionality is just boilerplate of this type in the probe() function: struct pinctrl *p; p = devm_pinctrl_get_select_default(&dev); if (IS_ERR(p)) { if (PTR_ERR(p) == -EPROBE_DEFER) return -EPROBE_DEFER; dev_warn(&dev, "no pinctrl handle\n"); } The discussion began with the addition of such boilerplate to the omap4 keypad driver: http://marc.info/?l=linux-input&m=135091157719300&w=2 A previous approach using notifiers was discussed: http://marc.info/?l=linux-kernel&m=135263661110528&w=2 This failed because it could not handle deferred probes. This patch alone does not solve the entire dilemma faced: whether code should be distributed into the drivers or if it should be centralized to e.g. a PM domain. But it solves the immediate issue of the addition of boilerplate to a lot of drivers that just want to grab the default state. As mentioned, they can later explicitly retrieve the handle and set different states, and this could as well be done by e.g. PM domains as it is only related to a certain struct device * pointer. ChangeLog v4->v5 (Stephen): - Simplified the devicecore grab code. - Deleted a piece of documentation recommending that pins be mapped to a device rather than hogged. ChangeLog v3->v4 (Linus): - Drop overzealous NULL checks. - Move kref initialization to pinctrl_create(). - Seeking Tested-by from Stephen Warren so we do not disturb the Tegra platform. - Seeking ACK on this from Greg (and others who like it) so I can merge it through the pinctrl subsystem. ChangeLog v2->v3 (Linus): - Abstain from using IS_ERR_OR_NULL() in the driver core, Russell recently sent a patch to remove it. Handle the NULL case explicitly even though it's a bogus case. - Make sure we handle probe deferral correctly in the device core file. devm_kfree() the container on error so we don't waste memory for devices without pinctrl handles. - Introduce reference counting into the pinctrl core using so that we don't release pinctrl handles that have been obtained for two or more places. ChangeLog v1->v2 (Linus): - Only store a pointer in the device struct, and only allocate this if it's really used by the device. Cc: Felipe Balbi Cc: Benoit Cousson Cc: Dmitry Torokhov Cc: Thomas Petazzoni Cc: Mitch Bradley Cc: Ulf Hansson Cc: Rafael J. Wysocki Cc: Jean-Christophe PLAGNIOL-VILLARD Cc: Rickard Andersson Cc: Russell King Reviewed-by: Mark Brown Acked-by: Greg Kroah-Hartman Signed-off-by: Linus Walleij [swarren: fixed and simplified error-handling in pinctrl_bind_pins(), to correctly handle deferred probe. Removed admonition from docs not to use pinctrl hogs for devices] Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij --- include/linux/device.h | 7 +++++++ include/linux/pinctrl/devinfo.h | 45 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 52 insertions(+) create mode 100644 include/linux/pinctrl/devinfo.h (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index 43dcda937ddf..001f6637aa47 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -620,6 +621,8 @@ struct acpi_dev_node { * @pm_domain: Provide callbacks that are executed during system suspend, * hibernation, system resume and during runtime PM transitions * along with subsystem-level and driver-level callbacks. + * @pins: For device pin management. + * See Documentation/pinctrl.txt for details. * @numa_node: NUMA node this device is close to. * @dma_mask: Dma mask (if dma'ble device). * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all @@ -672,6 +675,10 @@ struct device { struct dev_pm_info power; struct dev_pm_domain *pm_domain; +#ifdef CONFIG_PINCTRL + struct dev_pin_info *pins; +#endif + #ifdef CONFIG_NUMA int numa_node; /* NUMA node this device is close to */ #endif diff --git a/include/linux/pinctrl/devinfo.h b/include/linux/pinctrl/devinfo.h new file mode 100644 index 000000000000..6e5f8a985ea7 --- /dev/null +++ b/include/linux/pinctrl/devinfo.h @@ -0,0 +1,45 @@ +/* + * Per-device information from the pin control system. + * This is the stuff that get included into the device + * core. + * + * Copyright (C) 2012 ST-Ericsson SA + * Written on behalf of Linaro for ST-Ericsson + * This interface is used in the core to keep track of pins. + * + * Author: Linus Walleij + * + * License terms: GNU General Public License (GPL) version 2 + */ + +#ifndef PINCTRL_DEVINFO_H +#define PINCTRL_DEVINFO_H + +#ifdef CONFIG_PINCTRL + +/* The device core acts as a consumer toward pinctrl */ +#include + +/** + * struct dev_pin_info - pin state container for devices + * @p: pinctrl handle for the containing device + * @default_state: the default state for the handle, if found + */ +struct dev_pin_info { + struct pinctrl *p; + struct pinctrl_state *default_state; +}; + +extern int pinctrl_bind_pins(struct device *dev); + +#else + +/* Stubs if we're not using pinctrl */ + +static inline int pinctrl_bind_pins(struct device *dev) +{ + return 0; +} + +#endif /* CONFIG_PINCTRL */ +#endif /* PINCTRL_DEVINFO_H */ -- cgit v1.2.3 From 8723d5037cafea09c7242303c6c8e5d7058cec61 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 23 Jan 2013 09:32:30 -0800 Subject: async: bring sanity to the use of words domain and running In the beginning, running lists were literal struct list_heads. Later on, struct async_domain was added. For some reason, while the conversion substituted list_heads with async_domains, the variable names weren't fully converted. In more places, "running" was used for struct async_domain while other places adopted new "domain" name. The situation is made much worse by having async_domain's running list named "domain" and async_entry's field pointing to async_domain named "running". So, we end up with mix of "running" and "domain" for variable names for async_domain, with the field names of async_domain and async_entry swapped between "running" and "domain". It feels almost intentionally made to be as confusing as possible. Bring some sanity by * Renaming all async_domain variables "domain". * s/async_running/async_dfl_domain/ * s/async_domain->domain/async_domain->running/ * s/async_entry->running/async_entry->domain/ Signed-off-by: Tejun Heo Cc: Arjan van de Ven Cc: Dan Williams Cc: Linus Torvalds --- include/linux/async.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/async.h b/include/linux/async.h index 345169cfa304..34ff5c610e0e 100644 --- a/include/linux/async.h +++ b/include/linux/async.h @@ -19,7 +19,7 @@ typedef u64 async_cookie_t; typedef void (async_func_ptr) (void *data, async_cookie_t cookie); struct async_domain { struct list_head node; - struct list_head domain; + struct list_head running; int count; unsigned registered:1; }; @@ -29,7 +29,7 @@ struct async_domain { */ #define ASYNC_DOMAIN(_name) \ struct async_domain _name = { .node = LIST_HEAD_INIT(_name.node), \ - .domain = LIST_HEAD_INIT(_name.domain), \ + .running = LIST_HEAD_INIT(_name.running), \ .count = 0, \ .registered = 1 } @@ -39,7 +39,7 @@ struct async_domain { */ #define ASYNC_DOMAIN_EXCLUSIVE(_name) \ struct async_domain _name = { .node = LIST_HEAD_INIT(_name.node), \ - .domain = LIST_HEAD_INIT(_name.domain), \ + .running = LIST_HEAD_INIT(_name.running), \ .count = 0, \ .registered = 0 } -- cgit v1.2.3 From 52722794d6a48162fd8906d54618ae60a4abdb21 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 23 Jan 2013 09:32:30 -0800 Subject: async: keep pending tasks on async_domain and remove async_pending Async kept single global pending list and per-domain running lists. When an async item is queued, it's put on the global pending list. The item is moved to the per-domain running list when its execution starts. At this point, this design complicates execution and synchronization without bringing any benefit. The list only matters for synchronization which doesn't care whether a given async item is pending or executing. Also, global synchronization is done by iterating through all active registered async_domains, so the global async_pending list doesn't help anything either. Rename async_domain->running to async_domain->pending and put async items directly there and remove when execution completes. This simplifies lowest_in_progress() a lot - the first item on the pending list is the one with the lowest cookie, and async_run_entry_fn() doesn't have to mess with moving the item from pending to running. After the change, whether a domain is empty or not can be trivially determined by looking at async_domain->pending. Remove async_domain->count and use list_empty() on pending instead. Signed-off-by: Tejun Heo Cc: Arjan van de Ven Cc: Dan Williams Cc: Linus Torvalds --- include/linux/async.h | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/async.h b/include/linux/async.h index 34ff5c610e0e..a2e3f18b2ad6 100644 --- a/include/linux/async.h +++ b/include/linux/async.h @@ -19,8 +19,7 @@ typedef u64 async_cookie_t; typedef void (async_func_ptr) (void *data, async_cookie_t cookie); struct async_domain { struct list_head node; - struct list_head running; - int count; + struct list_head pending; unsigned registered:1; }; @@ -29,8 +28,7 @@ struct async_domain { */ #define ASYNC_DOMAIN(_name) \ struct async_domain _name = { .node = LIST_HEAD_INIT(_name.node), \ - .running = LIST_HEAD_INIT(_name.running), \ - .count = 0, \ + .pending = LIST_HEAD_INIT(_name.pending), \ .registered = 1 } /* @@ -39,8 +37,7 @@ struct async_domain { */ #define ASYNC_DOMAIN_EXCLUSIVE(_name) \ struct async_domain _name = { .node = LIST_HEAD_INIT(_name.node), \ - .running = LIST_HEAD_INIT(_name.running), \ - .count = 0, \ + .pending = LIST_HEAD_INIT(_name.pending), \ .registered = 0 } extern async_cookie_t async_schedule(async_func_ptr *ptr, void *data); -- cgit v1.2.3 From 055dc21a1d1d219608cd4baac7d0683fb2cbbe8a Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Tue, 22 Jan 2013 09:49:50 +0000 Subject: soreuseport: infrastructure Definitions and macros for implementing soreusport. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- include/linux/random.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/random.h b/include/linux/random.h index d9846088c2c5..347ce553a306 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -74,4 +74,10 @@ static inline int arch_get_random_int(unsigned int *v) } #endif +/* Pseudo random number generator from numerical recipes. */ +static inline u32 next_pseudo_random32(u32 seed) +{ + return seed * 1664525 + 1013904223; +} + #endif /* _LINUX_RANDOM_H */ -- cgit v1.2.3 From ba6fdda46b377034c782c0b89c8f1090b31eabd8 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Sat, 22 Dec 2012 16:59:51 +0100 Subject: profiling: Remove unused timer hook The last remaining user was oprofile and its use has been removed a while ago in commit bc078e4eab65f11bba ("oprofile: convert oprofile from timer_hook to hrtimer"). There doesn't seem to be any upstream user of this hook for about two years now. And I'm not even aware of any out of tree user. Let's remove it. Signed-off-by: Frederic Weisbecker Cc: Alessio Igor Bogani Cc: Avi Kivity Cc: Chris Metcalf Cc: Christoph Lameter Cc: Geoff Levand Cc: Gilad Ben Yossef Cc: Hakan Akkan Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1356191991-2251-1-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar --- include/linux/profile.h | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'include/linux') diff --git a/include/linux/profile.h b/include/linux/profile.h index a0fc32279fc0..21123902366d 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -82,9 +82,6 @@ int task_handoff_unregister(struct notifier_block * n); int profile_event_register(enum profile_type, struct notifier_block * n); int profile_event_unregister(enum profile_type, struct notifier_block * n); -int register_timer_hook(int (*hook)(struct pt_regs *)); -void unregister_timer_hook(int (*hook)(struct pt_regs *)); - struct pt_regs; #else @@ -135,16 +132,6 @@ static inline int profile_event_unregister(enum profile_type t, struct notifier_ #define profile_handoff_task(a) (0) #define profile_munmap(a) do { } while (0) -static inline int register_timer_hook(int (*hook)(struct pt_regs *)) -{ - return -ENOSYS; -} - -static inline void unregister_timer_hook(int (*hook)(struct pt_regs *)) -{ - return; -} - #endif /* CONFIG_PROFILING */ #endif /* _LINUX_PROFILE_H */ -- cgit v1.2.3 From d437c86baacf265a640dfc462c75941d02c0e153 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Wed, 23 Jan 2013 20:33:58 -0800 Subject: ieee80211: define AKM suite selectors type 5, 6 and 7 Reference: IEEE 802.11-2012 8.4.2.27.3 "AKM suites" Signed-off-by: Bing Zhao Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index ccf9ee1dca8c..11c8bc87fdcb 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1898,7 +1898,10 @@ enum ieee80211_sa_query_action { /* AKM suite selectors */ #define WLAN_AKM_SUITE_8021X 0x000FAC01 #define WLAN_AKM_SUITE_PSK 0x000FAC02 -#define WLAN_AKM_SUITE_SAE 0x000FAC08 +#define WLAN_AKM_SUITE_8021X_SHA256 0x000FAC05 +#define WLAN_AKM_SUITE_PSK_SHA256 0x000FAC06 +#define WLAN_AKM_SUITE_TDLS 0x000FAC07 +#define WLAN_AKM_SUITE_SAE 0x000FAC08 #define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09 #define WLAN_MAX_KEY_LEN 32 -- cgit v1.2.3 From 51906e779f2b13b38f8153774c4c7163d412ffd9 Mon Sep 17 00:00:00 2001 From: Alexander Gordeev Date: Mon, 19 Nov 2012 16:01:29 +0100 Subject: x86/MSI: Support multiple MSIs in presense of IRQ remapping The MSI specification has several constraints in comparison with MSI-X, most notable of them is the inability to configure MSIs independently. As a result, it is impossible to dispatch interrupts from different queues to different CPUs. This is largely devalues the support of multiple MSIs in SMP systems. Also, a necessity to allocate a contiguous block of vector numbers for devices capable of multiple MSIs might cause a considerable pressure on x86 interrupt vector allocator and could lead to fragmentation of the interrupt vectors space. This patch overcomes both drawbacks in presense of IRQ remapping and lets devices take advantage of multiple queues and per-IRQ affinity assignments. Signed-off-by: Alexander Gordeev Cc: Bjorn Helgaas Cc: Suresh Siddha Cc: Yinghai Lu Cc: Matthew Wilcox Cc: Jeff Garzik Cc: Linus Torvalds Cc: Andrew Morton Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/c8bd86ff56b5fc118257436768aaa04489ac0a4c.1353324359.git.agordeev@redhat.com Signed-off-by: Ingo Molnar --- include/linux/irq.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/irq.h b/include/linux/irq.h index fdf2c4a238cc..1eab99111e94 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -528,6 +528,8 @@ extern int irq_set_handler_data(unsigned int irq, void *data); extern int irq_set_chip_data(unsigned int irq, void *data); extern int irq_set_irq_type(unsigned int irq, unsigned int type); extern int irq_set_msi_desc(unsigned int irq, struct msi_desc *entry); +extern int irq_set_msi_desc_off(unsigned int irq_base, unsigned int irq_offset, + struct msi_desc *entry); extern struct irq_data *irq_get_irq_data(unsigned int irq); static inline struct irq_chip *irq_get_chip(unsigned int irq) @@ -590,6 +592,9 @@ int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, #define irq_alloc_desc_from(from, node) \ irq_alloc_descs(-1, from, 1, node) +#define irq_alloc_descs_from(from, cnt, node) \ + irq_alloc_descs(-1, from, cnt, node) + void irq_free_descs(unsigned int irq, unsigned int cnt); int irq_reserve_irqs(unsigned int from, unsigned int cnt); -- cgit v1.2.3 From 08261d87f7d1b6253ab3223756625a5c74532293 Mon Sep 17 00:00:00 2001 From: Alexander Gordeev Date: Mon, 19 Nov 2012 16:02:10 +0100 Subject: PCI/MSI: Enable multiple MSIs with pci_enable_msi_block_auto() The new function pci_enable_msi_block_auto() tries to allocate maximum possible number of MSIs up to the number the device supports. It generalizes a pattern when pci_enable_msi_block() is contiguously called until it succeeds or fails. Opposite to pci_enable_msi_block() which takes the number of MSIs to allocate as a input parameter, pci_enable_msi_block_auto() could be used by device drivers to obtain the number of assigned MSIs and the number of MSIs the device supports. Signed-off-by: Alexander Gordeev Acked-by: Bjorn Helgaas Cc: Suresh Siddha Cc: Yinghai Lu Cc: Matthew Wilcox Cc: Jeff Garzik Cc: Linus Torvalds Cc: Andrew Morton Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/c3de2419df94a0f95ca1a6f755afc421486455e6.1353324359.git.agordeev@redhat.com Signed-off-by: Ingo Molnar --- include/linux/pci.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pci.h b/include/linux/pci.h index 15472d691ee6..6fa4dd2a3b9e 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1101,6 +1101,12 @@ static inline int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec) return -1; } +static inline int +pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec) +{ + return -1; +} + static inline void pci_msi_shutdown(struct pci_dev *dev) { } static inline void pci_disable_msi(struct pci_dev *dev) @@ -1132,6 +1138,7 @@ static inline int pci_msi_enabled(void) } #else extern int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec); +extern int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec); extern void pci_msi_shutdown(struct pci_dev *dev); extern void pci_disable_msi(struct pci_dev *dev); extern int pci_msix_table_size(struct pci_dev *dev); -- cgit v1.2.3 From e2905b29122173b72b612c962b138e3fa07476b8 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 24 Jan 2013 11:01:32 -0800 Subject: workqueue: unexport work_cpu() This function no longer has any external users. Unexport it. It will be removed later on. Signed-off-by: Tejun Heo Reviewed-by: Lai Jiangshan --- include/linux/workqueue.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 2b58905d3504..ff68b1d95b41 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -426,7 +426,6 @@ extern bool cancel_delayed_work_sync(struct delayed_work *dwork); extern void workqueue_set_max_active(struct workqueue_struct *wq, int max_active); extern bool workqueue_congested(unsigned int cpu, struct workqueue_struct *wq); -extern unsigned int work_cpu(struct work_struct *work); extern unsigned int work_busy(struct work_struct *work); /* -- cgit v1.2.3 From 715b06b864c99a18cb8368dfb187da4f569788cd Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 24 Jan 2013 11:01:33 -0800 Subject: workqueue: introduce WORK_OFFQ_CPU_NONE Currently, when a work item is off queue, high bits of its data encodes the last CPU it was on. This is scheduled to be changed to pool ID, which will make it impossible to use WORK_CPU_NONE to indicate no association. This patch limits the number of bits which are used for off-queue cpu number to 31 (so that the max fits in an int) and uses the highest possible value - WORK_OFFQ_CPU_NONE - to indicate no association. Signed-off-by: Tejun Heo Reviewed-by: Lai Jiangshan --- include/linux/workqueue.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index ff68b1d95b41..f8b35763e55f 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -73,13 +73,21 @@ enum { WORK_OFFQ_CANCELING = (1 << WORK_OFFQ_FLAG_BASE), + /* + * When a work item is off queue, its high bits point to the last + * cpu it was on. Cap at 31 bits and use the highest number to + * indicate that no cpu is associated. + */ WORK_OFFQ_FLAG_BITS = 1, WORK_OFFQ_CPU_SHIFT = WORK_OFFQ_FLAG_BASE + WORK_OFFQ_FLAG_BITS, + WORK_OFFQ_LEFT = BITS_PER_LONG - WORK_OFFQ_CPU_SHIFT, + WORK_OFFQ_CPU_BITS = WORK_OFFQ_LEFT <= 31 ? WORK_OFFQ_LEFT : 31, + WORK_OFFQ_CPU_NONE = (1LU << WORK_OFFQ_CPU_BITS) - 1, /* convenience constants */ WORK_STRUCT_FLAG_MASK = (1UL << WORK_STRUCT_FLAG_BITS) - 1, WORK_STRUCT_WQ_DATA_MASK = ~WORK_STRUCT_FLAG_MASK, - WORK_STRUCT_NO_CPU = (unsigned long)WORK_CPU_NONE << WORK_OFFQ_CPU_SHIFT, + WORK_STRUCT_NO_CPU = (unsigned long)WORK_OFFQ_CPU_NONE << WORK_OFFQ_CPU_SHIFT, /* bit mask for work_busy() return values */ WORK_BUSY_PENDING = 1 << 0, -- cgit v1.2.3 From 7c3eed5cd60d0f736516e6ade77d90c6255860bd Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 24 Jan 2013 11:01:33 -0800 Subject: workqueue: record pool ID instead of CPU in work->data when off-queue Currently, when a work item is off-queue, work->data records the CPU it was last on, which is used to locate the last executing instance for non-reentrance, flushing, etc. We're in the process of removing global_cwq and making worker_pool the top level abstraction. This patch makes work->data point to the pool it was last associated with instead of CPU. After the previous WORK_OFFQ_POOL_CPU and worker_poo->id additions, the conversion is fairly straight-forward. WORK_OFFQ constants and functions are modified to record and read back pool ID instead. worker_pool_by_id() is added to allow looking up pool from ID. get_work_pool() replaces get_work_gcwq(), which is reimplemented using get_work_pool(). get_work_pool_id() replaces work_cpu(). This patch shouldn't introduce any observable behavior changes. Signed-off-by: Tejun Heo Reviewed-by: Lai Jiangshan --- include/linux/workqueue.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index f8b35763e55f..a94e4e84e7b1 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -75,19 +75,19 @@ enum { /* * When a work item is off queue, its high bits point to the last - * cpu it was on. Cap at 31 bits and use the highest number to - * indicate that no cpu is associated. + * pool it was on. Cap at 31 bits and use the highest number to + * indicate that no pool is associated. */ WORK_OFFQ_FLAG_BITS = 1, - WORK_OFFQ_CPU_SHIFT = WORK_OFFQ_FLAG_BASE + WORK_OFFQ_FLAG_BITS, - WORK_OFFQ_LEFT = BITS_PER_LONG - WORK_OFFQ_CPU_SHIFT, - WORK_OFFQ_CPU_BITS = WORK_OFFQ_LEFT <= 31 ? WORK_OFFQ_LEFT : 31, - WORK_OFFQ_CPU_NONE = (1LU << WORK_OFFQ_CPU_BITS) - 1, + WORK_OFFQ_POOL_SHIFT = WORK_OFFQ_FLAG_BASE + WORK_OFFQ_FLAG_BITS, + WORK_OFFQ_LEFT = BITS_PER_LONG - WORK_OFFQ_POOL_SHIFT, + WORK_OFFQ_POOL_BITS = WORK_OFFQ_LEFT <= 31 ? WORK_OFFQ_LEFT : 31, + WORK_OFFQ_POOL_NONE = (1LU << WORK_OFFQ_POOL_BITS) - 1, /* convenience constants */ WORK_STRUCT_FLAG_MASK = (1UL << WORK_STRUCT_FLAG_BITS) - 1, WORK_STRUCT_WQ_DATA_MASK = ~WORK_STRUCT_FLAG_MASK, - WORK_STRUCT_NO_CPU = (unsigned long)WORK_OFFQ_CPU_NONE << WORK_OFFQ_CPU_SHIFT, + WORK_STRUCT_NO_POOL = (unsigned long)WORK_OFFQ_POOL_NONE << WORK_OFFQ_POOL_SHIFT, /* bit mask for work_busy() return values */ WORK_BUSY_PENDING = 1 << 0, @@ -103,9 +103,9 @@ struct work_struct { #endif }; -#define WORK_DATA_INIT() ATOMIC_LONG_INIT(WORK_STRUCT_NO_CPU) +#define WORK_DATA_INIT() ATOMIC_LONG_INIT(WORK_STRUCT_NO_POOL) #define WORK_DATA_STATIC_INIT() \ - ATOMIC_LONG_INIT(WORK_STRUCT_NO_CPU | WORK_STRUCT_STATIC) + ATOMIC_LONG_INIT(WORK_STRUCT_NO_POOL | WORK_STRUCT_STATIC) struct delayed_work { struct work_struct work; -- cgit v1.2.3 From f2f6c2556dcc432e50003bc8fa4d62d95906f149 Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 4 Jan 2013 12:30:52 +0530 Subject: clk: add common of_clk_init() function Modify of_clk_init function so that it will determine which driver to initialize based on device tree instead of each driver registering to it. Based on a similar patch for drivers/irqchip by Thomas Petazzoni and drivers/clocksource by Stephen Warren. Signed-off-by: Prashant Gaikwad Tested-by: Tony Prisk Tested-by: Pawel Moll Tested-by: Rob Herring Tested-by: Josh Cartwright Reviewed-by: Josh Cartwright Acked-by: Maxime Ripard Signed-off-by: Mike Turquette [mturquette@linaro.org: merge conflict from missing CLKSRC_OF_TABLES()] Signed-off-by: Mike Turquette --- include/linux/clk-provider.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 4989b8a7bed1..7f197d7addb0 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -379,7 +379,13 @@ struct clk_onecell_data { }; struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data); const char *of_clk_get_parent_name(struct device_node *np, int index); + void of_clk_init(const struct of_device_id *matches); +#define CLK_OF_DECLARE(name, compat, fn) \ + static const struct of_device_id __clk_of_table_##name \ + __used __section(__clk_of_table) \ + = { .compatible = compat, .data = fn }; + #endif /* CONFIG_COMMON_CLK */ #endif /* CLK_PROVIDER_H */ -- cgit v1.2.3 From 85a181986c9cf8bbd2c4f2fb6f2add7ac5db1f76 Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 4 Jan 2013 12:30:54 +0530 Subject: clk: sunxi: Use common of_clk_init() function Use common of_clk_init() function to initialize clocks. Signed-off-by: Prashant Gaikwad Acked-by: Maxime Ripard Signed-off-by: Mike Turquette --- include/linux/clk/sunxi.h | 22 ---------------------- 1 file changed, 22 deletions(-) delete mode 100644 include/linux/clk/sunxi.h (limited to 'include/linux') diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h deleted file mode 100644 index e074fdd5a236..000000000000 --- a/include/linux/clk/sunxi.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright 2012 Maxime Ripard - * - * Maxime Ripard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef __LINUX_CLK_SUNXI_H_ -#define __LINUX_CLK_SUNXI_H_ - -void __init sunxi_init_clocks(void); - -#endif -- cgit v1.2.3 From ace783b9bbfa2182b4a561498db3f09a0c56bc79 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Thu, 24 Jan 2013 14:30:48 +0800 Subject: sched: split out css_online/css_offline from tg creation/destruction This is a preparaton for later patches. - What do we gain from cpu_cgroup_css_online(): After ss->css_alloc() and before ss->css_online(), there's a small window that tg->css.cgroup is NULL. With this change, tg won't be seen before ss->css_online(), where it's added to the global list, so we're guaranteed we'll never see NULL tg->css.cgroup. - What do we gain from cpu_cgroup_css_offline(): tg is freed via RCU, so is cgroup. Without this change, This is how synchronization works: cgroup_rmdir() no ss->css_offline() diput() syncornize_rcu() ss->css_free() <-- unregister tg, and free it via call_rcu() kfree_rcu(cgroup) <-- wait possible refs to cgroup, and free cgroup We can't just kfree(cgroup), because tg might access tg->css.cgroup. With this change: cgroup_rmdir() ss->css_offline() <-- unregister tg diput() synchronize_rcu() <-- wait possible refs to tg and cgroup ss->css_free() <-- free tg kfree_rcu(cgroup) <-- free cgroup As you see, kfree_rcu() is redundant now. Signed-off-by: Li Zefan Signed-off-by: Tejun Heo Acked-by: Ingo Molnar --- include/linux/sched.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 206bb089c06b..577eb973de7a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2750,7 +2750,10 @@ extern void normalize_rt_tasks(void); extern struct task_group root_task_group; extern struct task_group *sched_create_group(struct task_group *parent); +extern void sched_online_group(struct task_group *tg, + struct task_group *parent); extern void sched_destroy_group(struct task_group *tg); +extern void sched_offline_group(struct task_group *tg); extern void sched_move_task(struct task_struct *tsk); #ifdef CONFIG_FAIR_GROUP_SCHED extern int sched_group_set_shares(struct task_group *tg, unsigned long shares); -- cgit v1.2.3 From be44562613851235d801d41d5b3976dc4333f622 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Thu, 24 Jan 2013 14:31:42 +0800 Subject: cgroup: remove synchronize_rcu() from cgroup_diput() Free cgroup via call_rcu(). The actual work is done through workqueue. Signed-off-by: Li Zefan Signed-off-by: Tejun Heo --- include/linux/cgroup.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 8118a3120378..900af5964f55 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -203,6 +203,7 @@ struct cgroup { /* For RCU-protected deletion */ struct rcu_head rcu_head; + struct work_struct free_work; /* List of events which userspace want to receive */ struct list_head event_list; -- cgit v1.2.3 From 57d2aa00dcec67afa52478730f2b524521af14fb Mon Sep 17 00:00:00 2001 From: Ying Xue Date: Tue, 17 Jul 2012 15:03:43 +0800 Subject: sched/rt: Avoid updating RT entry timeout twice within one tick period The issue below was found in 2.6.34-rt rather than mainline rt kernel, but the issue still exists upstream as well. So please let me describe how it was noticed on 2.6.34-rt: On this version, each softirq has its own thread, it means there is at least one RT FIFO task per cpu. The priority of these tasks is set to 49 by default. If user launches an RT FIFO task with priority lower than 49 of softirq RT tasks, it's possible there are two RT FIFO tasks enqueued one cpu runqueue at one moment. By current strategy of balancing RT tasks, when it comes to RT tasks, we really need to put them off to a CPU that they can run on as soon as possible. Even if it means a bit of cache line flushing, we want RT tasks to be run with the least latency. When the user RT FIFO task which just launched before is running, the sched timer tick of the current cpu happens. In this tick period, the timeout value of the user RT task will be updated once. Subsequently, we try to wake up one softirq RT task on its local cpu. As the priority of current user RT task is lower than the softirq RT task, the current task will be preempted by the higher priority softirq RT task. Before preemption, we check to see if current can readily move to a different cpu. If so, we will reschedule to allow the RT push logic to try to move current somewhere else. Whenever the woken softirq RT task runs, it first tries to migrate the user FIFO RT task over to a cpu that is running a task of lesser priority. If migration is done, it will send a reschedule request to the found cpu by IPI interrupt. Once the target cpu responds the IPI interrupt, it will pick the migrated user RT task to preempt its current task. When the user RT task is running on the new cpu, the sched timer tick of the cpu fires. So it will tick the user RT task again. This also means the RT task timeout value will be updated again. As the migration may be done in one tick period, it means the user RT task timeout value will be updated twice within one tick. If we set a limit on the amount of cpu time for the user RT task by setrlimit(RLIMIT_RTTIME), the SIGXCPU signal should be posted upon reaching the soft limit. But exactly when the SIGXCPU signal should be sent depends on the RT task timeout value. In fact the timeout mechanism of sending the SIGXCPU signal assumes the RT task timeout is increased once every tick. However, currently the timeout value may be added twice per tick. So it results in the SIGXCPU signal being sent earlier than expected. To solve this issue, we prevent the timeout value from increasing twice within one tick time by remembering the jiffies value of last updating the timeout. As long as the RT task's jiffies is different with the global jiffies value, we allow its timeout to be updated. Signed-off-by: Ying Xue Signed-off-by: Fan Du Reviewed-by: Yong Zhang Acked-by: Steven Rostedt Cc: Link: http://lkml.kernel.org/r/1342508623-2887-1-git-send-email-ying.xue@windriver.com Signed-off-by: Ingo Molnar --- include/linux/sched.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index d2112477ff5e..924e42a8df58 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1208,6 +1208,7 @@ struct sched_entity { struct sched_rt_entity { struct list_head run_list; unsigned long timeout; + unsigned long watchdog_stamp; unsigned int time_slice; struct sched_rt_entity *back; -- cgit v1.2.3 From 0bb8f3d6ae621945e6fa2102aa894f72b76a023e Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 25 Jan 2013 21:51:13 +0100 Subject: sysfs: Functions for adding/removing symlinks to/from attribute groups The most convenient way to expose ACPI power resources lists of a device is to put symbolic links to sysfs directories representing those resources into special attribute groups in the device's sysfs directory. For this purpose, it is necessary to be able to add symbolic links to attribute groups. For this reason, add sysfs helper functions for adding/removing symbolic links to/from attribute groups, sysfs_add_link_to_group() and sysfs_remove_link_from_group(), respectively. This change set includes a build fix from David Rientjes. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 381f06db2fe5..e2cee22f578a 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -181,6 +181,10 @@ int sysfs_merge_group(struct kobject *kobj, const struct attribute_group *grp); void sysfs_unmerge_group(struct kobject *kobj, const struct attribute_group *grp); +int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name, + struct kobject *target, const char *link_name); +void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name, + const char *link_name); void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr); void sysfs_notify_dirent(struct sysfs_dirent *sd); @@ -326,6 +330,18 @@ static inline void sysfs_unmerge_group(struct kobject *kobj, { } +static inline int sysfs_add_link_to_group(struct kobject *kobj, + const char *group_name, struct kobject *target, + const char *link_name) +{ + return 0; +} + +static inline void sysfs_remove_link_from_group(struct kobject *kobj, + const char *group_name, const char *link_name) +{ +} + static inline void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr) { -- cgit v1.2.3 From fbadc58dd3a52c330c8f3926aa93011bf9d91fa0 Mon Sep 17 00:00:00 2001 From: ShuoX Liu Date: Wed, 23 Jan 2013 21:49:37 +0100 Subject: PM / Runtime: Add new helper function: pm_runtime_active() This boolean function simply returns whether or not the runtime status of the device is 'active'. The typical scenario is driver calls pm_runtime_get firstly, then check pm_runtime_active in atomic environment. Also add entry to Documentation/power/runtime.txt Signed-off-by: Yanmin Zhang Signed-off-by: ShuoX Liu Signed-off-by: Rafael J. Wysocki --- include/linux/pm_runtime.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index f271860c78d5..c785c215abfc 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -80,6 +80,12 @@ static inline bool pm_runtime_suspended(struct device *dev) && !dev->power.disable_depth; } +static inline bool pm_runtime_active(struct device *dev) +{ + return dev->power.runtime_status == RPM_ACTIVE + || dev->power.disable_depth; +} + static inline bool pm_runtime_status_suspended(struct device *dev) { return dev->power.runtime_status == RPM_SUSPENDED; @@ -132,6 +138,7 @@ static inline void pm_runtime_put_noidle(struct device *dev) {} static inline bool device_run_wake(struct device *dev) { return false; } static inline void device_set_run_wake(struct device *dev, bool enable) {} static inline bool pm_runtime_suspended(struct device *dev) { return false; } +static inline bool pm_runtime_active(struct device *dev) { return true; } static inline bool pm_runtime_status_suspended(struct device *dev) { return false; } static inline bool pm_runtime_enabled(struct device *dev) { return false; } -- cgit v1.2.3 From c25fb816298138a4b12c606f0aaa018bdd3cc09c Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Wed, 9 Jan 2013 08:12:46 -0800 Subject: hwmon: Retire SENSORS_LIMIT SENSORS_LIMIT and clamp_val have the same functionality, so retire SENSORS_LIMIT as it is no longer needed. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare --- include/linux/hwmon.h | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h index 82b29ae6ebb0..b2514f70d591 100644 --- a/include/linux/hwmon.h +++ b/include/linux/hwmon.h @@ -20,16 +20,4 @@ struct device *hwmon_device_register(struct device *dev); void hwmon_device_unregister(struct device *dev); -/* Scale user input to sensible values */ -static inline int SENSORS_LIMIT(long value, long low, long high) -{ - if (value < low) - return low; - else if (value > high) - return high; - else - return value; -} - #endif - -- cgit v1.2.3 From 3343b7a6d2cd0a980d0c4a0ce02ef48b6bfcc12a Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Tue, 22 Jan 2013 12:26:27 +0200 Subject: spi/pxa2xx: convert to the common clk framework Convert clk_enable() to clk_prepare_enable() and clk_disable() to clk_disable_unprepare() respectively in order to support the common clk framework. Otherwise we get warnings on the console as the clock is not prepared before it is enabled. In addition we must cache the maximum clock rate to drv_data->max_clk_rate at probe time because clk_get_rate() cannot be called in tasklet context. Signed-off-by: Mika Westerberg Signed-off-by: Mark Brown --- include/linux/spi/pxa2xx_spi.h | 18 ------------------ 1 file changed, 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index 6b99f09b717d..053b5ba51b25 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -133,23 +133,5 @@ static inline void pxa_free_dma(int dma_ch) { } -/* - * The CE4100 does not have the clk framework implemented and SPI clock can - * not be switched on/off or the divider changed. - */ -static inline void clk_disable(struct clk *clk) -{ -} - -static inline int clk_enable(struct clk *clk) -{ - return 0; -} - -static inline unsigned long clk_get_rate(struct clk *clk) -{ - return 3686400; -} - #endif #endif -- cgit v1.2.3 From 5cbc7ca987fb3f293203dc14a6c53b91b7c978a5 Mon Sep 17 00:00:00 2001 From: Matthias Brugger Date: Thu, 24 Jan 2013 13:40:41 +0100 Subject: spi: spi-omap2-mcspi.c: Toggle CS after each word This patch allows the board code to define SPI devices which needs to toggle the chip select after every word send. This is needed to get a better resolution reading e.g. an ADC data stream. Apart from that, as in the normal code CS is controlled by software, a transfer is done much faster. Signed-off-by: Matthias Brugger Signed-off-by: Mark Brown --- include/linux/platform_data/spi-omap2-mcspi.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/spi-omap2-mcspi.h b/include/linux/platform_data/spi-omap2-mcspi.h index a65572d53211..c100456eab17 100644 --- a/include/linux/platform_data/spi-omap2-mcspi.h +++ b/include/linux/platform_data/spi-omap2-mcspi.h @@ -22,6 +22,9 @@ struct omap2_mcspi_dev_attr { struct omap2_mcspi_device_config { unsigned turbo_mode:1; + + /* toggle chip select after every word */ + unsigned cs_per_word:1; }; #endif -- cgit v1.2.3 From 996a953de02ffb852c9ac736f4e892008ed68884 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Tue, 18 Dec 2012 18:50:55 +0100 Subject: can: add tx/rx LED trigger support This patch implements the functions to add two LED triggers, named -tx and -rx, to a canbus device driver. Triggers are called from specific handlers by each CAN device driver and can be disabled altogether with a Kconfig option. The implementation keeps the LED on when the interface is UP and blinks the LED on network activity at a configurable rate. This only supports can-dev based drivers, as it uses some support field in the can_priv structure. Supported drivers should call devm_can_led_init() and can_led_event() as needed. Cleanup is handled automatically by devres, so no *_exit function is needed. Supported events are: - CAN_LED_EVENT_OPEN: turn on tx/rx LEDs - CAN_LED_EVENT_STOP: turn off tx/rx LEDs - CAN_LED_EVENT_TX: trigger tx LED blink - CAN_LED_EVENT_RX: trigger tx LED blink Cc: Wolfgang Grandegger Cc: Marc Kleine-Budde Signed-off-by: Fabio Baltieri Acked-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde --- include/linux/can/dev.h | 8 ++++++++ include/linux/can/led.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 50 insertions(+) create mode 100644 include/linux/can/led.h (limited to 'include/linux') diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 2b2fc345afca..7747d9bcdc84 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -16,6 +16,7 @@ #include #include #include +#include /* * CAN mode @@ -52,6 +53,13 @@ struct can_priv { unsigned int echo_skb_max; struct sk_buff **echo_skb; + +#ifdef CONFIG_CAN_LEDS + struct led_trigger *tx_led_trig; + char tx_led_trig_name[CAN_LED_NAME_SZ]; + struct led_trigger *rx_led_trig; + char rx_led_trig_name[CAN_LED_NAME_SZ]; +#endif }; /* diff --git a/include/linux/can/led.h b/include/linux/can/led.h new file mode 100644 index 000000000000..12d5549abb95 --- /dev/null +++ b/include/linux/can/led.h @@ -0,0 +1,42 @@ +/* + * Copyright 2012, Fabio Baltieri + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef CAN_LED_H +#define CAN_LED_H + +#include +#include + +enum can_led_event { + CAN_LED_EVENT_OPEN, + CAN_LED_EVENT_STOP, + CAN_LED_EVENT_TX, + CAN_LED_EVENT_RX, +}; + +#ifdef CONFIG_CAN_LEDS + +/* keep space for interface name + "-tx"/"-rx" suffix and null terminator */ +#define CAN_LED_NAME_SZ (IFNAMSIZ + 4) + +void can_led_event(struct net_device *netdev, enum can_led_event event); +void devm_can_led_init(struct net_device *netdev); + +#else + +static inline void can_led_event(struct net_device *netdev, + enum can_led_event event) +{ +} +static inline void devm_can_led_init(struct net_device *netdev) +{ +} + +#endif + +#endif -- cgit v1.2.3 From bf03a5379cd3492fbeca42111340581ba9dee0b8 Mon Sep 17 00:00:00 2001 From: Kurt Van Dijck Date: Tue, 18 Dec 2012 18:50:56 +0100 Subject: can: export a safe netdev_priv wrapper for candev In net_device notifier calls, it was impossible to determine if a CAN device is based on candev in a safe way. This patch adds such test in order to access candev storage from within those notifiers. Signed-off-by: Kurt Van Dijck Acked-by: Oliver Hartkopp Signed-off-by: Fabio Baltieri Signed-off-by: Marc Kleine-Budde --- include/linux/can/dev.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 7747d9bcdc84..fb0ab651a041 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -106,6 +106,9 @@ u8 can_len2dlc(u8 len); struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max); void free_candev(struct net_device *dev); +/* a candev safe wrapper around netdev_priv */ +struct can_priv *safe_candev_priv(struct net_device *dev); + int open_candev(struct net_device *dev); void close_candev(struct net_device *dev); -- cgit v1.2.3 From a1ef7bd9fce8aba8e4701e60208148fb3bc9bdd4 Mon Sep 17 00:00:00 2001 From: Kurt Van Dijck Date: Tue, 18 Dec 2012 18:50:57 +0100 Subject: can: rename LED trigger name on netdev renames The LED trigger name for CAN devices is based on the initial CAN device name, but does never change. The LED trigger name is not guaranteed to be unique in case of hotplugging CAN devices. This patch tries to address this problem by modifying the LED trigger name according to the CAN device name when the latter changes. v1 - Kurt Van Dijck v2 - Fabio Baltieri - remove rename blocking if trigger is bound - use led-subsystem function for the actual rename (still WiP) - call init/exit functions from dev.c v3 - Kurt Van Dijck - safe operation for non-candev based devices (vcan, slcan) based on earlier patch v4 - Kurt Van Dijck - trivial patch mistakes fixed Signed-off-by: Kurt Van Dijck Signed-off-by: Fabio Baltieri Signed-off-by: Marc Kleine-Budde --- include/linux/can/led.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/can/led.h b/include/linux/can/led.h index 12d5549abb95..9c1167baf273 100644 --- a/include/linux/can/led.h +++ b/include/linux/can/led.h @@ -26,6 +26,8 @@ enum can_led_event { void can_led_event(struct net_device *netdev, enum can_led_event event); void devm_can_led_init(struct net_device *netdev); +int __init can_led_notifier_init(void); +void __exit can_led_notifier_exit(void); #else @@ -36,6 +38,13 @@ static inline void can_led_event(struct net_device *netdev, static inline void devm_can_led_init(struct net_device *netdev) { } +static inline int can_led_notifier_init(void) +{ + return 0; +} +static inline void can_led_notifier_exit(void) +{ +} #endif -- cgit v1.2.3 From 156c2bb9f88065c8da78814f98fde665a5cbb527 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Thu, 17 Jan 2013 18:43:39 +0100 Subject: can: add private data space for CAN sk_buffs The struct can_skb_priv is used to transport additional information along with the stored struct can(fd)_frame that can not be contained in existing struct sk_buff elements. can_skb_priv is located in the skb headroom, which does not touch the existing CAN sk_buff usage with skb->data and skb->len, so that even out-of-tree CAN drivers can be used without changes. Btw. out-of-tree CAN drivers without can_skb_priv in the sk_buff headroom would not support features based on can_skb_priv. The can_skb_priv->ifindex contains the first interface where the CAN frame appeared on the local host. Unfortunately skb->skb_iif can not be used as this value is overwritten in every netif_receive_skb() call. Signed-off-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde --- include/linux/can/skb.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 include/linux/can/skb.h (limited to 'include/linux') diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h new file mode 100644 index 000000000000..4b0f24d3a878 --- /dev/null +++ b/include/linux/can/skb.h @@ -0,0 +1,35 @@ +/* + * linux/can/skb.h + * + * Definitions for the CAN network socket buffer + * + * Copyright (C) 2012 Oliver Hartkopp + * + */ + +#ifndef CAN_SKB_H +#define CAN_SKB_H + +#include +#include + +/* + * The struct can_skb_priv is used to transport additional information along + * with the stored struct can(fd)_frame that can not be contained in existing + * struct sk_buff elements. + * N.B. that this information must not be modified in cloned CAN sk_buffs. + * To modify the CAN frame content or the struct can_skb_priv content + * skb_copy() needs to be used instead of skb_clone(). + */ + +/** + * struct can_skb_priv - private additional data inside CAN sk_buffs + * @ifindex: ifindex of the first interface the CAN frame appeared on + * @cf: align to the following CAN frame at skb->data + */ +struct can_skb_priv { + int ifindex; + struct can_frame cf[0]; +}; + +#endif /* CAN_SKB_H */ -- cgit v1.2.3 From 95a79fd458b85132c25e351d45037ec9643312b2 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Mon, 7 Jan 2013 18:12:14 +0100 Subject: context_tracking: Export context state for generic vtime Export the context state: whether we run in user / kernel from the context tracking subsystem point of view. This is going to be used by the generic virtual cputime accounting subsystem that is needed to implement the full dynticks. Signed-off-by: Frederic Weisbecker Cc: Andrew Morton Cc: Ingo Molnar Cc: Li Zhong Cc: Namhyung Kim Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- include/linux/context_tracking.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'include/linux') diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index e24339ccb7f0..b28d161c1091 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h @@ -3,12 +3,40 @@ #ifdef CONFIG_CONTEXT_TRACKING #include +#include + +struct context_tracking { + /* + * When active is false, probes are unset in order + * to minimize overhead: TIF flags are cleared + * and calls to user_enter/exit are ignored. This + * may be further optimized using static keys. + */ + bool active; + enum { + IN_KERNEL = 0, + IN_USER, + } state; +}; + +DECLARE_PER_CPU(struct context_tracking, context_tracking); + +static inline bool context_tracking_in_user(void) +{ + return __this_cpu_read(context_tracking.state) == IN_USER; +} + +static inline bool context_tracking_active(void) +{ + return __this_cpu_read(context_tracking.active); +} extern void user_enter(void); extern void user_exit(void); extern void context_tracking_task_switch(struct task_struct *prev, struct task_struct *next); #else +static inline bool context_tracking_in_user(void) { return false; } static inline void user_enter(void) { } static inline void user_exit(void) { } static inline void context_tracking_task_switch(struct task_struct *prev, -- cgit v1.2.3 From 90f45e4e729a7ffaa3ed2423834aad612870b427 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 10 Jan 2013 05:24:49 -0800 Subject: rcu: Remove obsolete Kconfig option from comment Signed-off-by: Paul E. McKenney --- include/linux/rcupdate.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 275aa3f1062d..7e12dbaa1457 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -749,7 +749,7 @@ static inline void rcu_preempt_sleep_check(void) * preemptible RCU implementations (TREE_PREEMPT_RCU and TINY_PREEMPT_RCU) * in CONFIG_PREEMPT kernel builds, RCU read-side critical sections may * be preempted, but explicit blocking is illegal. Finally, in preemptible - * RCU implementations in real-time (CONFIG_PREEMPT_RT) kernel builds, + * RCU implementations in real-time (with -rt patchset) kernel builds, * RCU read-side critical sections may be preempted and they may also * block, but only when acquiring spinlocks that are subject to priority * inheritance. -- cgit v1.2.3 From abf917cd91cbb73952758f9741e2fa65002a48ee Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Wed, 25 Jul 2012 07:56:04 +0200 Subject: cputime: Generic on-demand virtual cputime accounting If we want to stop the tick further idle, we need to be able to account the cputime without using the tick. Virtual based cputime accounting solves that problem by hooking into kernel/user boundaries. However implementing CONFIG_VIRT_CPU_ACCOUNTING require low level hooks and involves more overhead. But we already have a generic context tracking subsystem that is required for RCU needs by archs which plan to shut down the tick outside idle. This patch implements a generic virtual based cputime accounting that relies on these generic kernel/user hooks. There are some upsides of doing this: - This requires no arch code to implement CONFIG_VIRT_CPU_ACCOUNTING if context tracking is already built (already necessary for RCU in full tickless mode). - We can rely on the generic context tracking subsystem to dynamically (de)activate the hooks, so that we can switch anytime between virtual and tick based accounting. This way we don't have the overhead of the virtual accounting when the tick is running periodically. And one downside: - There is probably more overhead than a native virtual based cputime accounting. But this relies on hooks that are already set anyway. Signed-off-by: Frederic Weisbecker Cc: Andrew Morton Cc: Ingo Molnar Cc: Li Zhong Cc: Namhyung Kim Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- include/linux/kernel_stat.h | 2 +- include/linux/vtime.h | 16 ++++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index 66b70780e910..ed5f6ed6eb77 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -127,7 +127,7 @@ extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t) extern void account_steal_time(cputime_t); extern void account_idle_time(cputime_t); -#ifdef CONFIG_VIRT_CPU_ACCOUNTING +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE static inline void account_process_tick(struct task_struct *tsk, int user) { vtime_account_user(tsk); diff --git a/include/linux/vtime.h b/include/linux/vtime.h index ae30ab58431a..21ef703d1b25 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -14,9 +14,25 @@ extern void vtime_account(struct task_struct *tsk); static inline void vtime_task_switch(struct task_struct *prev) { } static inline void vtime_account_system(struct task_struct *tsk) { } static inline void vtime_account_system_irqsafe(struct task_struct *tsk) { } +static inline void vtime_account_user(struct task_struct *tsk) { } static inline void vtime_account(struct task_struct *tsk) { } #endif +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN +static inline void arch_vtime_task_switch(struct task_struct *tsk) { } +static inline void vtime_user_enter(struct task_struct *tsk) +{ + vtime_account_system(tsk); +} +static inline void vtime_user_exit(struct task_struct *tsk) +{ + vtime_account_user(tsk); +} +#else +static inline void vtime_user_enter(struct task_struct *tsk) { } +static inline void vtime_user_exit(struct task_struct *tsk) { } +#endif + #ifdef CONFIG_IRQ_TIME_ACCOUNTING extern void irqtime_account_irq(struct task_struct *tsk); #else -- cgit v1.2.3 From 3f4724ea85b7d9055a9976fa8f30b471bdfbca93 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Mon, 16 Jul 2012 18:00:34 +0200 Subject: cputime: Allow dynamic switch between tick/virtual based cputime accounting Allow to dynamically switch between tick and virtual based cputime accounting. This way we can provide a kind of "on-demand" virtual based cputime accounting. In this mode, the kernel relies on the context tracking subsystem to dynamically probe on kernel boundaries. This is in preparation for being able to stop the timer tick in more places than just the idle state. Doing so will depend on CONFIG_VIRT_CPU_ACCOUNTING_GEN which makes it possible to account the cputime without the tick by hooking on kernel/user boundaries. Depending whether the tick is stopped or not, we can switch between tick and vtime based accounting anytime in order to minimize the overhead associated to user hooks. Signed-off-by: Frederic Weisbecker Cc: Andrew Morton Cc: Ingo Molnar Cc: Li Zhong Cc: Namhyung Kim Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- include/linux/vtime.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 21ef703d1b25..5368af9bdf06 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -10,12 +10,20 @@ extern void vtime_account_system_irqsafe(struct task_struct *tsk); extern void vtime_account_idle(struct task_struct *tsk); extern void vtime_account_user(struct task_struct *tsk); extern void vtime_account(struct task_struct *tsk); + +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN +extern bool vtime_accounting_enabled(void); #else +static inline bool vtime_accounting_enabled(void) { return true; } +#endif + +#else /* !CONFIG_VIRT_CPU_ACCOUNTING */ static inline void vtime_task_switch(struct task_struct *prev) { } static inline void vtime_account_system(struct task_struct *tsk) { } static inline void vtime_account_system_irqsafe(struct task_struct *tsk) { } static inline void vtime_account_user(struct task_struct *tsk) { } static inline void vtime_account(struct task_struct *tsk) { } +static inline bool vtime_accounting_enabled(void) { return false; } #endif #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN -- cgit v1.2.3 From 6fac4829ce0ef9b7f24369086ce5f0e9f38d37bc Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Tue, 13 Nov 2012 14:20:55 +0100 Subject: cputime: Use accessors to read task cputime stats This is in preparation for the full dynticks feature. While remotely reading the cputime of a task running in a full dynticks CPU, we'll need to do some extra-computation. This way we can account the time it spent tickless in userspace since its last cputime snapshot. Signed-off-by: Frederic Weisbecker Cc: Andrew Morton Cc: Ingo Molnar Cc: Li Zhong Cc: Namhyung Kim Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- include/linux/sched.h | 23 +++++++++++++++++++++++ include/linux/tsacct_kern.h | 3 +++ 2 files changed, 26 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 6fc8f45de4e9..a9c608b6154e 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1792,6 +1792,29 @@ static inline void put_task_struct(struct task_struct *t) __put_task_struct(t); } +static inline cputime_t task_gtime(struct task_struct *t) +{ + return t->gtime; +} + +static inline void task_cputime(struct task_struct *t, + cputime_t *utime, cputime_t *stime) +{ + if (utime) + *utime = t->utime; + if (stime) + *stime = t->stime; +} + +static inline void task_cputime_scaled(struct task_struct *t, + cputime_t *utimescaled, + cputime_t *stimescaled) +{ + if (utimescaled) + *utimescaled = t->utimescaled; + if (stimescaled) + *stimescaled = t->stimescaled; +} extern void task_cputime_adjusted(struct task_struct *p, cputime_t *ut, cputime_t *st); extern void thread_group_cputime_adjusted(struct task_struct *p, cputime_t *ut, cputime_t *st); diff --git a/include/linux/tsacct_kern.h b/include/linux/tsacct_kern.h index 44893e5ec8f7..3251965bf4cc 100644 --- a/include/linux/tsacct_kern.h +++ b/include/linux/tsacct_kern.h @@ -23,12 +23,15 @@ static inline void bacct_add_tsk(struct user_namespace *user_ns, #ifdef CONFIG_TASK_XACCT extern void xacct_add_tsk(struct taskstats *stats, struct task_struct *p); extern void acct_update_integrals(struct task_struct *tsk); +extern void acct_account_cputime(struct task_struct *tsk); extern void acct_clear_integrals(struct task_struct *tsk); #else static inline void xacct_add_tsk(struct taskstats *stats, struct task_struct *p) {} static inline void acct_update_integrals(struct task_struct *tsk) {} +static inline void acct_account_cputime(struct task_struct *tsk) +{} static inline void acct_clear_integrals(struct task_struct *tsk) {} #endif /* CONFIG_TASK_XACCT */ -- cgit v1.2.3 From c11f11fcbdb5be790c565aed46411486a7586afc Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Mon, 21 Jan 2013 00:50:22 +0100 Subject: kvm: Prepare to add generic guest entry/exit callbacks Do some ground preparatory work before adding guest_enter() and guest_exit() context tracking callbacks. Those will be later used to read the guest cputime safely when we run in full dynticks mode. Signed-off-by: Frederic Weisbecker Cc: Andrew Morton Cc: Gleb Natapov Cc: Ingo Molnar Cc: Li Zhong Cc: Marcelo Tosatti Cc: Namhyung Kim Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- include/linux/kvm_host.h | 39 ++++++++++++++++++++++++++++++--------- include/linux/vtime.h | 2 -- 2 files changed, 30 insertions(+), 11 deletions(-) (limited to 'include/linux') diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 2c497ab0d03d..4fe2396401da 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -740,15 +741,36 @@ static inline int kvm_deassign_device(struct kvm *kvm, } #endif /* CONFIG_IOMMU_API */ -static inline void kvm_guest_enter(void) +static inline void guest_enter(void) { - BUG_ON(preemptible()); /* * This is running in ioctl context so we can avoid * the call to vtime_account() with its unnecessary idle check. */ - vtime_account_system_irqsafe(current); + vtime_account_system(current); current->flags |= PF_VCPU; +} + +static inline void guest_exit(void) +{ + /* + * This is running in ioctl context so we can avoid + * the call to vtime_account() with its unnecessary idle check. + */ + vtime_account_system(current); + current->flags &= ~PF_VCPU; +} + +static inline void kvm_guest_enter(void) +{ + unsigned long flags; + + BUG_ON(preemptible()); + + local_irq_save(flags); + guest_enter(); + local_irq_restore(flags); + /* KVM does not hold any references to rcu protected data when it * switches CPU into a guest mode. In fact switching to a guest mode * is very similar to exiting to userspase from rcu point of view. In @@ -761,12 +783,11 @@ static inline void kvm_guest_enter(void) static inline void kvm_guest_exit(void) { - /* - * This is running in ioctl context so we can avoid - * the call to vtime_account() with its unnecessary idle check. - */ - vtime_account_system_irqsafe(current); - current->flags &= ~PF_VCPU; + unsigned long flags; + + local_irq_save(flags); + guest_exit(); + local_irq_restore(flags); } /* diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 5368af9bdf06..bb50c3ca0d79 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -6,7 +6,6 @@ struct task_struct; #ifdef CONFIG_VIRT_CPU_ACCOUNTING extern void vtime_task_switch(struct task_struct *prev); extern void vtime_account_system(struct task_struct *tsk); -extern void vtime_account_system_irqsafe(struct task_struct *tsk); extern void vtime_account_idle(struct task_struct *tsk); extern void vtime_account_user(struct task_struct *tsk); extern void vtime_account(struct task_struct *tsk); @@ -20,7 +19,6 @@ static inline bool vtime_accounting_enabled(void) { return true; } #else /* !CONFIG_VIRT_CPU_ACCOUNTING */ static inline void vtime_task_switch(struct task_struct *prev) { } static inline void vtime_account_system(struct task_struct *tsk) { } -static inline void vtime_account_system_irqsafe(struct task_struct *tsk) { } static inline void vtime_account_user(struct task_struct *tsk) { } static inline void vtime_account(struct task_struct *tsk) { } static inline bool vtime_accounting_enabled(void) { return false; } -- cgit v1.2.3 From 6a61671bb2f3a1bd12cd17b8fca811a624782632 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Sun, 16 Dec 2012 20:00:34 +0100 Subject: cputime: Safely read cputime of full dynticks CPUs While remotely reading the cputime of a task running in a full dynticks CPU, the values stored in utime/stime fields of struct task_struct may be stale. Its values may be those of the last kernel <-> user transition time snapshot and we need to add the tickless time spent since this snapshot. To fix this, flush the cputime of the dynticks CPUs on kernel <-> user transition and record the time / context where we did this. Then on top of this snapshot and the current time, perform the fixup on the reader side from task_times() accessors. Signed-off-by: Frederic Weisbecker Cc: Andrew Morton Cc: Ingo Molnar Cc: Li Zhong Cc: Namhyung Kim Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner [fixed kvm module related build errors] Signed-off-by: Sedat Dilek --- include/linux/hardirq.h | 4 ++-- include/linux/init_task.h | 11 +++++++++++ include/linux/kvm_host.h | 20 ++++++++++++++++++-- include/linux/sched.h | 27 ++++++++++++++++++++++----- include/linux/vtime.h | 47 +++++++++++++++++++++++------------------------ 5 files changed, 76 insertions(+), 33 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 624ef3f45c8e..7105d5cbb762 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -153,7 +153,7 @@ extern void rcu_nmi_exit(void); */ #define __irq_enter() \ do { \ - vtime_account_irq_enter(current); \ + account_irq_enter_time(current); \ add_preempt_count(HARDIRQ_OFFSET); \ trace_hardirq_enter(); \ } while (0) @@ -169,7 +169,7 @@ extern void irq_enter(void); #define __irq_exit() \ do { \ trace_hardirq_exit(); \ - vtime_account_irq_exit(current); \ + account_irq_exit_time(current); \ sub_preempt_count(HARDIRQ_OFFSET); \ } while (0) diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 6d087c5f57f7..cc898b871cef 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -10,6 +10,7 @@ #include #include #include +#include #include #ifdef CONFIG_SMP @@ -141,6 +142,15 @@ extern struct task_group root_task_group; # define INIT_PERF_EVENTS(tsk) #endif +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN +# define INIT_VTIME(tsk) \ + .vtime_seqlock = __SEQLOCK_UNLOCKED(tsk.vtime_seqlock), \ + .vtime_snap = 0, \ + .vtime_snap_whence = VTIME_SYS, +#else +# define INIT_VTIME(tsk) +#endif + #define INIT_TASK_COMM "swapper" /* @@ -210,6 +220,7 @@ extern struct task_group root_task_group; INIT_TRACE_RECURSION \ INIT_TASK_RCU_PREEMPT(tsk) \ INIT_CPUSET_SEQ \ + INIT_VTIME(tsk) \ } diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 4fe2396401da..b7996a768eb2 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -741,7 +741,7 @@ static inline int kvm_deassign_device(struct kvm *kvm, } #endif /* CONFIG_IOMMU_API */ -static inline void guest_enter(void) +static inline void __guest_enter(void) { /* * This is running in ioctl context so we can avoid @@ -751,7 +751,7 @@ static inline void guest_enter(void) current->flags |= PF_VCPU; } -static inline void guest_exit(void) +static inline void __guest_exit(void) { /* * This is running in ioctl context so we can avoid @@ -761,6 +761,22 @@ static inline void guest_exit(void) current->flags &= ~PF_VCPU; } +#ifdef CONFIG_CONTEXT_TRACKING +extern void guest_enter(void); +extern void guest_exit(void); + +#else /* !CONFIG_CONTEXT_TRACKING */ +static inline void guest_enter(void) +{ + __guest_enter(); +} + +static inline void guest_exit(void) +{ + __guest_exit(); +} +#endif /* !CONFIG_CONTEXT_TRACKING */ + static inline void kvm_guest_enter(void) { unsigned long flags; diff --git a/include/linux/sched.h b/include/linux/sched.h index a9c608b6154e..a9fa5145e1a7 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1367,6 +1367,15 @@ struct task_struct { cputime_t gtime; #ifndef CONFIG_VIRT_CPU_ACCOUNTING struct cputime prev_cputime; +#endif +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN + seqlock_t vtime_seqlock; + unsigned long long vtime_snap; + enum { + VTIME_SLEEPING = 0, + VTIME_USER, + VTIME_SYS, + } vtime_snap_whence; #endif unsigned long nvcsw, nivcsw; /* context switch counts */ struct timespec start_time; /* monotonic time */ @@ -1792,11 +1801,13 @@ static inline void put_task_struct(struct task_struct *t) __put_task_struct(t); } -static inline cputime_t task_gtime(struct task_struct *t) -{ - return t->gtime; -} - +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN +extern void task_cputime(struct task_struct *t, + cputime_t *utime, cputime_t *stime); +extern void task_cputime_scaled(struct task_struct *t, + cputime_t *utimescaled, cputime_t *stimescaled); +extern cputime_t task_gtime(struct task_struct *t); +#else static inline void task_cputime(struct task_struct *t, cputime_t *utime, cputime_t *stime) { @@ -1815,6 +1826,12 @@ static inline void task_cputime_scaled(struct task_struct *t, if (stimescaled) *stimescaled = t->stimescaled; } + +static inline cputime_t task_gtime(struct task_struct *t) +{ + return t->gtime; +} +#endif extern void task_cputime_adjusted(struct task_struct *p, cputime_t *ut, cputime_t *st); extern void thread_group_cputime_adjusted(struct task_struct *p, cputime_t *ut, cputime_t *st); diff --git a/include/linux/vtime.h b/include/linux/vtime.h index bb50c3ca0d79..71a5782d8c59 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -8,35 +8,44 @@ extern void vtime_task_switch(struct task_struct *prev); extern void vtime_account_system(struct task_struct *tsk); extern void vtime_account_idle(struct task_struct *tsk); extern void vtime_account_user(struct task_struct *tsk); -extern void vtime_account(struct task_struct *tsk); +extern void vtime_account_irq_enter(struct task_struct *tsk); -#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN -extern bool vtime_accounting_enabled(void); -#else +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE static inline bool vtime_accounting_enabled(void) { return true; } #endif #else /* !CONFIG_VIRT_CPU_ACCOUNTING */ + static inline void vtime_task_switch(struct task_struct *prev) { } static inline void vtime_account_system(struct task_struct *tsk) { } static inline void vtime_account_user(struct task_struct *tsk) { } -static inline void vtime_account(struct task_struct *tsk) { } +static inline void vtime_account_irq_enter(struct task_struct *tsk) { } static inline bool vtime_accounting_enabled(void) { return false; } #endif #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN -static inline void arch_vtime_task_switch(struct task_struct *tsk) { } -static inline void vtime_user_enter(struct task_struct *tsk) -{ - vtime_account_system(tsk); -} +extern void arch_vtime_task_switch(struct task_struct *tsk); +extern void vtime_account_irq_exit(struct task_struct *tsk); +extern bool vtime_accounting_enabled(void); +extern void vtime_user_enter(struct task_struct *tsk); static inline void vtime_user_exit(struct task_struct *tsk) { vtime_account_user(tsk); } +extern void vtime_guest_enter(struct task_struct *tsk); +extern void vtime_guest_exit(struct task_struct *tsk); +extern void vtime_init_idle(struct task_struct *tsk); #else +static inline void vtime_account_irq_exit(struct task_struct *tsk) +{ + /* On hard|softirq exit we always account to hard|softirq cputime */ + vtime_account_system(tsk); +} static inline void vtime_user_enter(struct task_struct *tsk) { } static inline void vtime_user_exit(struct task_struct *tsk) { } +static inline void vtime_guest_enter(struct task_struct *tsk) { } +static inline void vtime_guest_exit(struct task_struct *tsk) { } +static inline void vtime_init_idle(struct task_struct *tsk) { } #endif #ifdef CONFIG_IRQ_TIME_ACCOUNTING @@ -45,25 +54,15 @@ extern void irqtime_account_irq(struct task_struct *tsk); static inline void irqtime_account_irq(struct task_struct *tsk) { } #endif -static inline void vtime_account_irq_enter(struct task_struct *tsk) +static inline void account_irq_enter_time(struct task_struct *tsk) { - /* - * Hardirq can interrupt idle task anytime. So we need vtime_account() - * that performs the idle check in CONFIG_VIRT_CPU_ACCOUNTING. - * Softirq can also interrupt idle task directly if it calls - * local_bh_enable(). Such case probably don't exist but we never know. - * Ksoftirqd is not concerned because idle time is flushed on context - * switch. Softirqs in the end of hardirqs are also not a problem because - * the idle time is flushed on hardirq time already. - */ - vtime_account(tsk); + vtime_account_irq_enter(tsk); irqtime_account_irq(tsk); } -static inline void vtime_account_irq_exit(struct task_struct *tsk) +static inline void account_irq_exit_time(struct task_struct *tsk) { - /* On hard|softirq exit we always account to hard|softirq cputime */ - vtime_account_system(tsk); + vtime_account_irq_exit(tsk); irqtime_account_irq(tsk); } -- cgit v1.2.3 From cef401de7be8c4e155c6746bfccf721a4fa5fab9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 25 Jan 2013 20:34:37 +0000 Subject: net: fix possible wrong checksum generation Pravin Shelar mentioned that GSO could potentially generate wrong TX checksum if skb has fragments that are overwritten by the user between the checksum computation and transmit. He suggested to linearize skbs but this extra copy can be avoided for normal tcp skbs cooked by tcp_sendmsg(). This patch introduces a new SKB_GSO_SHARED_FRAG flag, set in skb_shinfo(skb)->gso_type if at least one frag can be modified by the user. Typical sources of such possible overwrites are {vm}splice(), sendfile(), and macvtap/tun/virtio_net drivers. Tested: $ netperf -H 7.7.8.84 MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.8.84 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 3959.52 $ netperf -H 7.7.8.84 -t TCP_SENDFILE TCP SENDFILE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.8.84 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 3216.80 Performance of the SENDFILE is impacted by the extra allocation and copy, and because we use order-0 pages, while the TCP_STREAM uses bigger pages. Reported-by: Pravin Shelar Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/skbuff.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 8b2256e880e0..0259b719bebf 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -307,6 +307,13 @@ enum { SKB_GSO_TCPV6 = 1 << 4, SKB_GSO_FCOE = 1 << 5, + + /* This indicates at least one fragment might be overwritten + * (as in vmsplice(), sendfile() ...) + * If we need to compute a TX checksum, we'll need to copy + * all frags to avoid possible bad checksum + */ + SKB_GSO_SHARED_FRAG = 1 << 6, }; #if BITS_PER_LONG > 32 @@ -2200,6 +2207,18 @@ static inline int skb_linearize(struct sk_buff *skb) return skb_is_nonlinear(skb) ? __skb_linearize(skb) : 0; } +/** + * skb_has_shared_frag - can any frag be overwritten + * @skb: buffer to test + * + * Return true if the skb has at least one frag that might be modified + * by an external entity (as in vmsplice()/sendfile()) + */ +static inline bool skb_has_shared_frag(const struct sk_buff *skb) +{ + return skb_shinfo(skb)->gso_type & SKB_GSO_SHARED_FRAG; +} + /** * skb_linearize_cow - make sure skb is linear and writable * @skb: buffer to process -- cgit v1.2.3 From 5afba62cc8a16716508605e02c1b02ee5f969184 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 26 Sep 2012 12:44:38 +0200 Subject: x86, msi: Use IRQ remapping specific setup_msi_irqs routine Use seperate routines to setup MSI IRQs for both irq_remapping_enabled cases. Signed-off-by: Joerg Roedel Acked-by: Sebastian Andrzej Siewior Reviewed-by: Konrad Rzeszutek Wilk --- include/linux/irq.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/irq.h b/include/linux/irq.h index 1eab99111e94..bc4e06611958 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -509,8 +509,11 @@ static inline void irq_set_percpu_devid_flags(unsigned int irq) /* Handle dynamic irq creation and destruction */ extern unsigned int create_irq_nr(unsigned int irq_want, int node); +extern unsigned int __create_irqs(unsigned int from, unsigned int count, + int node); extern int create_irq(void); extern void destroy_irq(unsigned int irq); +extern void destroy_irqs(unsigned int irq, unsigned int count); /* * Dynamic irq helper functions. Obsolete. Use irq_alloc_desc* and -- cgit v1.2.3 From 2bf3440d7b8755f2627232e6a4c37efbbe053685 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Mon, 28 Jan 2013 08:33:33 +0000 Subject: can: rework skb reserved data handling Added accessor and skb_reserve helpers for struct can_skb_priv. Removed pointless skb_headroom() check. Signed-off-by: Oliver Hartkopp CC: Marc Kleine-Budde Signed-off-by: David S. Miller --- include/linux/can/skb.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h index 4b0f24d3a878..2f0543f7510c 100644 --- a/include/linux/can/skb.h +++ b/include/linux/can/skb.h @@ -32,4 +32,14 @@ struct can_skb_priv { struct can_frame cf[0]; }; +static inline struct can_skb_priv *can_skb_prv(struct sk_buff *skb) +{ + return (struct can_skb_priv *)(skb->head); +} + +static inline void can_skb_reserve(struct sk_buff *skb) +{ + skb_reserve(skb, sizeof(struct can_skb_priv)); +} + #endif /* CAN_SKB_H */ -- cgit v1.2.3 From 5fbee843c32e5de2d8af68ba0bdd113bb0af9d86 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 22 Jan 2013 21:29:39 +0000 Subject: netpoll: add RCU annotation to npinfo field dev->npinfo is protected by RCU. This fixes the following sparse warnings: net/core/netpoll.c:177:48: error: incompatible types in comparison expression (different address spaces) net/core/netpoll.c:200:35: error: incompatible types in comparison expression (different address spaces) net/core/netpoll.c:221:35: error: incompatible types in comparison expression (different address spaces) net/core/netpoll.c:327:18: error: incompatible types in comparison expression (different address spaces) Cc: Eric Dumazet Cc: David S. Miller Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 549f5ad2055d..85b0949d9946 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1272,7 +1272,7 @@ struct net_device { void (*destructor)(struct net_device *dev); #ifdef CONFIG_NETPOLL - struct netpoll_info *npinfo; + struct netpoll_info __rcu *npinfo; #endif #ifdef CONFIG_NET_NS -- cgit v1.2.3 From 7ab59dc15e2f42a4321ed016bcd6044a4d8de6d1 Mon Sep 17 00:00:00 2001 From: "David J. Choi" Date: Wed, 23 Jan 2013 14:05:15 +0000 Subject: drivers/net/phy/micrel_phy: Add support for new PHYs Summary of changes: .Newly added phys -KSZ8081/KSZ8091, which has some phy ids. -KSZ8061 -KSZ9031, which is Gigabit phy. -KSZ886X, which has a switch function. -KSZ8031, which has a same phy ids with KSZ8021. Signed-off-by: David J. Choi Signed-off-by: David S. Miller --- include/linux/micrel_phy.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h index adfe8c058f29..9dbb41a4e250 100644 --- a/include/linux/micrel_phy.h +++ b/include/linux/micrel_phy.h @@ -21,8 +21,15 @@ #define PHY_ID_KSZ8021 0x00221555 #define PHY_ID_KSZ8041 0x00221510 #define PHY_ID_KSZ8051 0x00221550 -/* both for ks8001 Rev. A/B, and for ks8721 Rev 3. */ +/* same id: ks8001 Rev. A/B, and ks8721 Rev 3. */ #define PHY_ID_KSZ8001 0x0022161A +/* same id: KS8081, KS8091 */ +#define PHY_ID_KSZ8081 0x00221560 +#define PHY_ID_KSZ8061 0x00221570 +#define PHY_ID_KSZ9031 0x00221620 + +#define PHY_ID_KSZ886X 0x00221430 +#define PHY_ID_KSZ8863 0x00221435 /* struct phy_device dev_flags definitions */ #define MICREL_PHY_50MHZ_CLK 0x00000001 -- cgit v1.2.3 From d2a5884a64161b524cc6749ee11b95d252e497f3 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Sun, 27 Jan 2013 10:49:05 -0800 Subject: regmap: Add "no-bus" option for regmap API This commit adds provision for "no-bus" usage of the regmap API. In this configuration user can provide API with two callbacks 'reg_read' and 'reg_write' which are to be called when reads and writes to one of device's registers is performed. This is useful for devices that expose registers but whose register access sequence does not fit the 'bus' abstraction. Signed-off-by: Andrey Smirnov Signed-off-by: Mark Brown --- include/linux/regmap.h | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index b7e95bf942c9..28dde941c783 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -127,7 +127,18 @@ typedef void (*regmap_unlock)(void *); * @lock_arg: this field is passed as the only argument of lock/unlock * functions (ignored in case regular lock/unlock functions * are not overridden). - * + * @reg_read: Optional callback that if filled will be used to perform + * all the reads from the registers. Should only be provided for + * devices whos read operation cannot be represented as a simple read + * operation on a bus such as SPI, I2C, etc. Most of the devices do + * not need this. + * @reg_write: Same as above for writing. + * @fast_io: Register IO is fast. Use a spinlock instead of a mutex + * to perform locking. This field is ignored if custom lock/unlock + * functions are used (see fields lock/unlock of struct regmap_config). + * This field is a duplicate of a similar file in + * 'struct regmap_bus' and serves exact same purpose. + * Use it only for "no-bus" cases. * @max_register: Optional, specifies the maximum valid register index. * @wr_table: Optional, points to a struct regmap_access_table specifying * valid ranges for write access. @@ -177,6 +188,11 @@ struct regmap_config { regmap_unlock unlock; void *lock_arg; + int (*reg_read)(void *context, unsigned int reg, unsigned int *val); + int (*reg_write)(void *context, unsigned int reg, unsigned int val); + + bool fast_io; + unsigned int max_register; const struct regmap_access_table *wr_table; const struct regmap_access_table *rd_table; -- cgit v1.2.3 From 0d509f2b112b21411712f0bf789b372987967e49 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 27 Jan 2013 22:07:38 +0800 Subject: regmap: Add asynchronous I/O support Some use cases like firmware download can transfer a lot of data in quick succession. With high speed buses these use cases can benefit from having multiple transfers scheduled at once since this allows the bus to minimise the delay between transfers. Support this by adding regmap_raw_write_async(), allowing raw transfers to be scheduled, and regmap_async_complete() to wait for them to finish. Signed-off-by: Mark Brown --- include/linux/regmap.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'include/linux') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index b7e95bf942c9..f9b7fbe35ab1 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -235,14 +235,21 @@ struct regmap_range_cfg { unsigned int window_len; }; +struct regmap_async; + typedef int (*regmap_hw_write)(void *context, const void *data, size_t count); typedef int (*regmap_hw_gather_write)(void *context, const void *reg, size_t reg_len, const void *val, size_t val_len); +typedef int (*regmap_hw_async_write)(void *context, + const void *reg, size_t reg_len, + const void *val, size_t val_len, + struct regmap_async *async); typedef int (*regmap_hw_read)(void *context, const void *reg_buf, size_t reg_size, void *val_buf, size_t val_size); +typedef struct regmap_async *(*regmap_hw_async_alloc)(void); typedef void (*regmap_hw_free_context)(void *context); /** @@ -255,8 +262,11 @@ typedef void (*regmap_hw_free_context)(void *context); * @write: Write operation. * @gather_write: Write operation with split register/value, return -ENOTSUPP * if not implemented on a given device. + * @async_write: Write operation which completes asynchronously, optional and + * must serialise with respect to non-async I/O. * @read: Read operation. Data is returned in the buffer used to transmit * data. + * @async_alloc: Allocate a regmap_async() structure. * @read_flag_mask: Mask to be set in the top byte of the register when doing * a read. * @reg_format_endian_default: Default endianness for formatted register @@ -265,13 +275,16 @@ typedef void (*regmap_hw_free_context)(void *context); * @val_format_endian_default: Default endianness for formatted register * values. Used when the regmap_config specifies DEFAULT. If this is * DEFAULT, BIG is assumed. + * @async_size: Size of struct used for async work. */ struct regmap_bus { bool fast_io; regmap_hw_write write; regmap_hw_gather_write gather_write; + regmap_hw_async_write async_write; regmap_hw_read read; regmap_hw_free_context free_context; + regmap_hw_async_alloc async_alloc; u8 read_flag_mask; enum regmap_endian reg_format_endian_default; enum regmap_endian val_format_endian_default; @@ -310,6 +323,8 @@ int regmap_raw_write(struct regmap *map, unsigned int reg, const void *val, size_t val_len); int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, size_t val_count); +int regmap_raw_write_async(struct regmap *map, unsigned int reg, + const void *val, size_t val_len); int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val); int regmap_raw_read(struct regmap *map, unsigned int reg, void *val, size_t val_len); @@ -321,6 +336,7 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, bool *change); int regmap_get_val_bytes(struct regmap *map); +int regmap_async_complete(struct regmap *map); int regcache_sync(struct regmap *map); int regcache_sync_region(struct regmap *map, unsigned int min, @@ -422,6 +438,13 @@ static inline int regmap_raw_write(struct regmap *map, unsigned int reg, return -EINVAL; } +static inline int regmap_raw_write_async(struct regmap *map, unsigned int reg, + const void *val, size_t val_len) +{ + WARN_ONCE(1, "regmap API is disabled"); + return -EINVAL; +} + static inline int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val, size_t val_count) { @@ -500,6 +523,11 @@ static inline void regcache_mark_dirty(struct regmap *map) WARN_ONCE(1, "regmap API is disabled"); } +static inline void regmap_async_complete(struct regmap *map) +{ + WARN_ONCE(1, "regmap API is disabled"); +} + static inline int regmap_register_patch(struct regmap *map, const struct reg_default *regs, int num_regs) -- cgit v1.2.3 From 5c766d642bcaffd0c2a5b354db2068515b3846cf Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Thu, 24 Jan 2013 09:41:41 +0000 Subject: ipv4: introduce address lifetime MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There are some usecase when lifetime of ipv4 addresses might be helpful. For example: 1) initramfs networkmanager uses a DHCP daemon to learn network configuration parameters 2) initramfs networkmanager addresses, routes and DNS configuration 3) initramfs networkmanager is requested to stop 4) initramfs networkmanager stops all daemons including dhclient 5) there are addresses and routes configured but no daemon running. If the system doesn't start networkmanager for some reason, addresses and routes will be used forever, which violates RFC 2131. This patch is essentially a backport of ivp6 address lifetime mechanism for ipv4 addresses. Current "ip" tool supports this without any patch (since it does not distinguish between ipv4 and ipv6 addresses in this perspective. Also, this should be back-compatible with all current netlink users. Reported-by: Pavel Šimerda Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/inetdevice.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h index a9d828976a77..ea1e3b863890 100644 --- a/include/linux/inetdevice.h +++ b/include/linux/inetdevice.h @@ -166,6 +166,12 @@ struct in_ifaddr { unsigned char ifa_flags; unsigned char ifa_prefixlen; char ifa_label[IFNAMSIZ]; + + /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */ + __u32 ifa_valid_lft; + __u32 ifa_preferred_lft; + unsigned long ifa_cstamp; /* created timestamp */ + unsigned long ifa_tstamp; /* updated timestamp */ }; extern int register_inetaddr_notifier(struct notifier_block *nb); -- cgit v1.2.3 From 6f16eebe1ff82176339a0439c98ebec9768b0ee2 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Fri, 25 Jan 2013 17:08:12 -0800 Subject: timekeeping: Switch HAS_PERSISTENT_CLOCK to ALWAYS_USE_PERSISTENT_CLOCK Jason pointed out the HAS_PERSISTENT_CLOCK name isn't quite accurate for the config, as some systems may have the persistent_clock in some cases, but not always. So change the config name to the more clear ALWAYS_USE_PERSISTENT_CLOCK. Signed-off-by: John Stultz --- include/linux/time.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/time.h b/include/linux/time.h index 369b6e3b87d8..476e1d7b2c37 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -117,7 +117,7 @@ static inline bool timespec_valid_strict(const struct timespec *ts) extern bool persistent_clock_exist; -#ifdef CONFIG_HAS_PERSISTENT_CLOCK +#ifdef ALWAYS_USE_PERSISTENT_CLOCK #define has_persistent_clock() true #else static inline bool has_persistent_clock(void) -- cgit v1.2.3 From ad964704ba9326d027fc10fd0099b7c880e50172 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (Red Hat)" Date: Tue, 29 Jan 2013 17:45:49 -0500 Subject: ring-buffer: Add stats field for amount read from trace ring buffer Add a stat about the number of events read from the ring buffer: # cat /debug/tracing/per_cpu/cpu0/stats entries: 39869 overrun: 870512 commit overrun: 0 bytes: 1449912 oldest event ts: 6561.368690 now ts: 6565.246426 dropped events: 0 read events: 112 <-- Added Signed-off-by: Steven Rostedt --- include/linux/ring_buffer.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 519777e3fa01..1342e69542f3 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -167,6 +167,7 @@ unsigned long ring_buffer_entries_cpu(struct ring_buffer *buffer, int cpu); unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu); unsigned long ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu); unsigned long ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu); +unsigned long ring_buffer_read_events_cpu(struct ring_buffer *buffer, int cpu); u64 ring_buffer_time_stamp(struct ring_buffer *buffer, int cpu); void ring_buffer_normalize_time_stamp(struct ring_buffer *buffer, -- cgit v1.2.3 From debdd57f5145f3c6a4b3f8d0126abd1a2def7fc6 Mon Sep 17 00:00:00 2001 From: Hiraku Toyooka Date: Wed, 26 Dec 2012 11:53:00 +0900 Subject: tracing: Make a snapshot feature available from userspace Ftrace has a snapshot feature available from kernel space and latency tracers (e.g. irqsoff) are using it. This patch enables user applictions to take a snapshot via debugfs. Add "snapshot" debugfs file in "tracing" directory. snapshot: This is used to take a snapshot and to read the output of the snapshot. # echo 1 > snapshot This will allocate the spare buffer for snapshot (if it is not allocated), and take a snapshot. # cat snapshot This will show contents of the snapshot. # echo 0 > snapshot This will free the snapshot if it is allocated. Any other positive values will clear the snapshot contents if the snapshot is allocated, or return EINVAL if it is not allocated. Link: http://lkml.kernel.org/r/20121226025300.3252.86850.stgit@liselsia Cc: Jiri Olsa Cc: David Sharp Signed-off-by: Hiraku Toyooka [ Fixed irqsoff selftest and also a conflict with a change that fixes the update_max_tr. ] Signed-off-by: Steven Rostedt --- include/linux/ftrace_event.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 6f8d0b77006b..13a54d0bdfa8 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -83,6 +83,9 @@ struct trace_iterator { long idx; cpumask_var_t started; + + /* it's true when current open file is snapshot */ + bool snapshot; }; enum trace_iter_flags { -- cgit v1.2.3 From 56813f798e8cb3f79a25e0523e782d910f376083 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 4 Jan 2013 13:14:34 +0100 Subject: mfd: ab8500: update header file and version detection This updates the AB8500 register map with defines for a few new chip variants and adds version detection helpers to handle the different variants. Acked-by: Samuel Ortiz Signed-off-by: Linus Walleij --- include/linux/mfd/abx500/ab8500.h | 277 ++++++++++++++++++++++++++++++-------- 1 file changed, 222 insertions(+), 55 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 1cb5698b4d76..e640ea059be2 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -24,7 +24,7 @@ enum ab8500_version { AB8500_VERSION_AB8500 = 0x0, AB8500_VERSION_AB8505 = 0x1, AB8500_VERSION_AB9540 = 0x2, - AB8500_VERSION_AB8540 = 0x3, + AB8500_VERSION_AB8540 = 0x4, AB8500_VERSION_UNDEFINED, }; @@ -32,6 +32,7 @@ enum ab8500_version { #define AB8500_CUTEARLY 0x00 #define AB8500_CUT1P0 0x10 #define AB8500_CUT1P1 0x11 +#define AB8500_CUT1P2 0x12 /* Only valid for AB8540 */ #define AB8500_CUT2P0 0x20 #define AB8500_CUT3P0 0x30 #define AB8500_CUT3P3 0x33 @@ -39,6 +40,7 @@ enum ab8500_version { /* * AB8500 bank addresses */ +#define AB8500_M_FSM_RANK 0x0 #define AB8500_SYS_CTRL1_BLOCK 0x1 #define AB8500_SYS_CTRL2_BLOCK 0x2 #define AB8500_REGU_CTRL1 0x3 @@ -58,6 +60,7 @@ enum ab8500_version { #define AB8500_DEVELOPMENT 0x11 #define AB8500_DEBUG 0x12 #define AB8500_PROD_TEST 0x13 +#define AB8500_STE_TEST 0x14 #define AB8500_OTP_EMUL 0x15 /* @@ -65,11 +68,11 @@ enum ab8500_version { * Values used to index into array ab8500_irq_regoffset[] defined in * drivers/mdf/ab8500-core.c */ -/* Definitions for AB8500 and AB9540 */ +/* Definitions for AB8500, AB9540 and AB8540 */ /* ab8500_irq_regoffset[0] -> IT[Source|Latch|Mask]1 */ #define AB8500_INT_MAIN_EXT_CH_NOT_OK 0 /* not 8505/9540 */ -#define AB8500_INT_UN_PLUG_TV_DET 1 /* not 8505/9540 */ -#define AB8500_INT_PLUG_TV_DET 2 /* not 8505/9540 */ +#define AB8500_INT_UN_PLUG_TV_DET 1 /* not 8505/9540/8540 */ +#define AB8500_INT_PLUG_TV_DET 2 /* not 8505/9540/8540 */ #define AB8500_INT_TEMP_WARM 3 #define AB8500_INT_PON_KEY2DB_F 4 #define AB8500_INT_PON_KEY2DB_R 5 @@ -77,18 +80,19 @@ enum ab8500_version { #define AB8500_INT_PON_KEY1DB_R 7 /* ab8500_irq_regoffset[1] -> IT[Source|Latch|Mask]2 */ #define AB8500_INT_BATT_OVV 8 -#define AB8500_INT_MAIN_CH_UNPLUG_DET 10 /* not 8505 */ -#define AB8500_INT_MAIN_CH_PLUG_DET 11 /* not 8505 */ +#define AB8500_INT_MAIN_CH_UNPLUG_DET 10 /* not 8505/8540 */ +#define AB8500_INT_MAIN_CH_PLUG_DET 11 /* not 8505/8540 */ #define AB8500_INT_VBUS_DET_F 14 #define AB8500_INT_VBUS_DET_R 15 /* ab8500_irq_regoffset[2] -> IT[Source|Latch|Mask]3 */ #define AB8500_INT_VBUS_CH_DROP_END 16 #define AB8500_INT_RTC_60S 17 #define AB8500_INT_RTC_ALARM 18 +#define AB8540_INT_BIF_INT 19 #define AB8500_INT_BAT_CTRL_INDB 20 #define AB8500_INT_CH_WD_EXP 21 #define AB8500_INT_VBUS_OVV 22 -#define AB8500_INT_MAIN_CH_DROP_END 23 /* not 8505/9540 */ +#define AB8500_INT_MAIN_CH_DROP_END 23 /* not 8505/9540/8540 */ /* ab8500_irq_regoffset[3] -> IT[Source|Latch|Mask]4 */ #define AB8500_INT_CCN_CONV_ACC 24 #define AB8500_INT_INT_AUD 25 @@ -99,7 +103,7 @@ enum ab8500_version { #define AB8500_INT_BUP_CHG_NOT_OK 30 #define AB8500_INT_BUP_CHG_OK 31 /* ab8500_irq_regoffset[4] -> IT[Source|Latch|Mask]5 */ -#define AB8500_INT_GP_HW_ADC_CONV_END 32 /* not 8505 */ +#define AB8500_INT_GP_HW_ADC_CONV_END 32 /* not 8505/8540 */ #define AB8500_INT_ACC_DETECT_1DB_F 33 #define AB8500_INT_ACC_DETECT_1DB_R 34 #define AB8500_INT_ACC_DETECT_22DB_F 35 @@ -108,23 +112,23 @@ enum ab8500_version { #define AB8500_INT_ACC_DETECT_21DB_R 38 #define AB8500_INT_GP_SW_ADC_CONV_END 39 /* ab8500_irq_regoffset[5] -> IT[Source|Latch|Mask]7 */ -#define AB8500_INT_GPIO6R 40 /* not 8505/9540 */ -#define AB8500_INT_GPIO7R 41 /* not 8505/9540 */ -#define AB8500_INT_GPIO8R 42 /* not 8505/9540 */ -#define AB8500_INT_GPIO9R 43 /* not 8505/9540 */ -#define AB8500_INT_GPIO10R 44 -#define AB8500_INT_GPIO11R 45 -#define AB8500_INT_GPIO12R 46 /* not 8505 */ -#define AB8500_INT_GPIO13R 47 +#define AB8500_INT_GPIO6R 40 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO7R 41 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO8R 42 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO9R 43 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO10R 44 /* not 8540 */ +#define AB8500_INT_GPIO11R 45 /* not 8540 */ +#define AB8500_INT_GPIO12R 46 /* not 8505/8540 */ +#define AB8500_INT_GPIO13R 47 /* not 8540 */ /* ab8500_irq_regoffset[6] -> IT[Source|Latch|Mask]8 */ -#define AB8500_INT_GPIO24R 48 /* not 8505 */ -#define AB8500_INT_GPIO25R 49 /* not 8505 */ -#define AB8500_INT_GPIO36R 50 /* not 8505/9540 */ -#define AB8500_INT_GPIO37R 51 /* not 8505/9540 */ -#define AB8500_INT_GPIO38R 52 /* not 8505/9540 */ -#define AB8500_INT_GPIO39R 53 /* not 8505/9540 */ -#define AB8500_INT_GPIO40R 54 -#define AB8500_INT_GPIO41R 55 +#define AB8500_INT_GPIO24R 48 /* not 8505/8540 */ +#define AB8500_INT_GPIO25R 49 /* not 8505/8540 */ +#define AB8500_INT_GPIO36R 50 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO37R 51 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO38R 52 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO39R 53 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO40R 54 /* not 8540 */ +#define AB8500_INT_GPIO41R 55 /* not 8540 */ /* ab8500_irq_regoffset[7] -> IT[Source|Latch|Mask]9 */ #define AB8500_INT_GPIO6F 56 /* not 8505/9540 */ #define AB8500_INT_GPIO7F 57 /* not 8505/9540 */ @@ -135,14 +139,14 @@ enum ab8500_version { #define AB8500_INT_GPIO12F 62 /* not 8505 */ #define AB8500_INT_GPIO13F 63 /* ab8500_irq_regoffset[8] -> IT[Source|Latch|Mask]10 */ -#define AB8500_INT_GPIO24F 64 /* not 8505 */ -#define AB8500_INT_GPIO25F 65 /* not 8505 */ -#define AB8500_INT_GPIO36F 66 /* not 8505/9540 */ -#define AB8500_INT_GPIO37F 67 /* not 8505/9540 */ -#define AB8500_INT_GPIO38F 68 /* not 8505/9540 */ -#define AB8500_INT_GPIO39F 69 /* not 8505/9540 */ -#define AB8500_INT_GPIO40F 70 -#define AB8500_INT_GPIO41F 71 +#define AB8500_INT_GPIO24F 64 /* not 8505/8540 */ +#define AB8500_INT_GPIO25F 65 /* not 8505/8540 */ +#define AB8500_INT_GPIO36F 66 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO37F 67 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO38F 68 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO39F 69 /* not 8505/9540/8540 */ +#define AB8500_INT_GPIO40F 70 /* not 8540 */ +#define AB8500_INT_GPIO41F 71 /* not 8540 */ /* ab8500_irq_regoffset[9] -> IT[Source|Latch|Mask]12 */ #define AB8500_INT_ADP_SOURCE_ERROR 72 #define AB8500_INT_ADP_SINK_ERROR 73 @@ -160,42 +164,44 @@ enum ab8500_version { #define AB8500_INT_SRP_DETECT 88 #define AB8500_INT_USB_CHARGER_NOT_OKR 89 #define AB8500_INT_ID_WAKEUP_R 90 +#define AB8500_INT_ID_DET_PLUGR 91 /* 8505/9540 cut2.0 */ #define AB8500_INT_ID_DET_R1R 92 #define AB8500_INT_ID_DET_R2R 93 #define AB8500_INT_ID_DET_R3R 94 #define AB8500_INT_ID_DET_R4R 95 /* ab8500_irq_regoffset[12] -> IT[Source|Latch|Mask]21 */ -#define AB8500_INT_ID_WAKEUP_F 96 -#define AB8500_INT_ID_DET_R1F 98 -#define AB8500_INT_ID_DET_R2F 99 -#define AB8500_INT_ID_DET_R3F 100 -#define AB8500_INT_ID_DET_R4F 101 -#define AB8500_INT_CHAUTORESTARTAFTSEC 102 +#define AB8500_INT_ID_WAKEUP_F 96 /* not 8505/9540 */ +#define AB8500_INT_ID_DET_PLUGF 97 /* 8505/9540 cut2.0 */ +#define AB8500_INT_ID_DET_R1F 98 /* not 8505/9540 */ +#define AB8500_INT_ID_DET_R2F 99 /* not 8505/9540 */ +#define AB8500_INT_ID_DET_R3F 100 /* not 8505/9540 */ +#define AB8500_INT_ID_DET_R4F 101 /* not 8505/9540 */ +#define AB8500_INT_CHAUTORESTARTAFTSEC 102 /* not 8505/9540 */ #define AB8500_INT_CHSTOPBYSEC 103 /* ab8500_irq_regoffset[13] -> IT[Source|Latch|Mask]22 */ #define AB8500_INT_USB_CH_TH_PROT_F 104 -#define AB8500_INT_USB_CH_TH_PROT_R 105 +#define AB8500_INT_USB_CH_TH_PROT_R 105 #define AB8500_INT_MAIN_CH_TH_PROT_F 106 /* not 8505/9540 */ #define AB8500_INT_MAIN_CH_TH_PROT_R 107 /* not 8505/9540 */ #define AB8500_INT_CHCURLIMNOHSCHIRP 109 #define AB8500_INT_CHCURLIMHSCHIRP 110 #define AB8500_INT_XTAL32K_KO 111 -/* Definitions for AB9540 */ +/* Definitions for AB9540 / AB8505 */ /* ab8500_irq_regoffset[14] -> IT[Source|Latch|Mask]13 */ -#define AB9540_INT_GPIO50R 113 -#define AB9540_INT_GPIO51R 114 /* not 8505 */ -#define AB9540_INT_GPIO52R 115 -#define AB9540_INT_GPIO53R 116 -#define AB9540_INT_GPIO54R 117 /* not 8505 */ +#define AB9540_INT_GPIO50R 113 /* not 8540 */ +#define AB9540_INT_GPIO51R 114 /* not 8505/8540 */ +#define AB9540_INT_GPIO52R 115 /* not 8540 */ +#define AB9540_INT_GPIO53R 116 /* not 8540 */ +#define AB9540_INT_GPIO54R 117 /* not 8505/8540 */ #define AB9540_INT_IEXT_CH_RF_BFN_R 118 -#define AB9540_INT_IEXT_CH_RF_BFN_F 119 /* ab8500_irq_regoffset[15] -> IT[Source|Latch|Mask]14 */ -#define AB9540_INT_GPIO50F 121 -#define AB9540_INT_GPIO51F 122 /* not 8505 */ -#define AB9540_INT_GPIO52F 123 -#define AB9540_INT_GPIO53F 124 -#define AB9540_INT_GPIO54F 125 /* not 8505 */ +#define AB9540_INT_GPIO50F 121 /* not 8540 */ +#define AB9540_INT_GPIO51F 122 /* not 8505/8540 */ +#define AB9540_INT_GPIO52F 123 /* not 8540 */ +#define AB9540_INT_GPIO53F 124 /* not 8540 */ +#define AB9540_INT_GPIO54F 125 /* not 8505/8540 */ +#define AB9540_INT_IEXT_CH_RF_BFN_F 126 /* ab8500_irq_regoffset[16] -> IT[Source|Latch|Mask]25 */ #define AB8505_INT_KEYSTUCK 128 #define AB8505_INT_IKR 129 @@ -204,6 +210,87 @@ enum ab8500_version { #define AB8505_INT_KEYDEGLITCH 132 #define AB8505_INT_MODPWRSTATUSF 134 #define AB8505_INT_MODPWRSTATUSR 135 +/* ab8500_irq_regoffset[17] -> IT[Source|Latch|Mask]6 */ +#define AB8500_INT_HOOK_DET_NEG_F 138 +#define AB8500_INT_HOOK_DET_NEG_R 139 +#define AB8500_INT_HOOK_DET_POS_F 140 +#define AB8500_INT_HOOK_DET_POS_R 141 +#define AB8500_INT_PLUG_DET_COMP_F 142 +#define AB8500_INT_PLUG_DET_COMP_R 143 +/* ab8500_irq_regoffset[18] -> IT[Source|Latch|Mask]23 */ +#define AB8505_INT_COLL 144 +#define AB8505_INT_RESERR 145 +#define AB8505_INT_FRAERR 146 +#define AB8505_INT_COMERR 147 +#define AB8505_INT_SPDSET 148 +#define AB8505_INT_DSENT 149 +#define AB8505_INT_DREC 150 +#define AB8505_INT_ACC_INT 151 +/* ab8500_irq_regoffset[19] -> IT[Source|Latch|Mask]24 */ +#define AB8505_INT_NOPINT 152 +/* ab8540_irq_regoffset[20] -> IT[Source|Latch|Mask]26 */ +#define AB8540_INT_IDPLUGDETCOMPF 160 +#define AB8540_INT_IDPLUGDETCOMPR 161 +#define AB8540_INT_FMDETCOMPLOF 162 +#define AB8540_INT_FMDETCOMPLOR 163 +#define AB8540_INT_FMDETCOMPHIF 164 +#define AB8540_INT_FMDETCOMPHIR 165 +#define AB8540_INT_ID5VDETCOMPF 166 +#define AB8540_INT_ID5VDETCOMPR 167 +/* ab8540_irq_regoffset[21] -> IT[Source|Latch|Mask]27 */ +#define AB8540_INT_GPIO43F 168 +#define AB8540_INT_GPIO43R 169 +#define AB8540_INT_GPIO44F 170 +#define AB8540_INT_GPIO44R 171 +#define AB8540_INT_KEYPOSDETCOMPF 172 +#define AB8540_INT_KEYPOSDETCOMPR 173 +#define AB8540_INT_KEYNEGDETCOMPF 174 +#define AB8540_INT_KEYNEGDETCOMPR 175 +/* ab8540_irq_regoffset[22] -> IT[Source|Latch|Mask]28 */ +#define AB8540_INT_GPIO1VBATF 176 +#define AB8540_INT_GPIO1VBATR 177 +#define AB8540_INT_GPIO2VBATF 178 +#define AB8540_INT_GPIO2VBATR 179 +#define AB8540_INT_GPIO3VBATF 180 +#define AB8540_INT_GPIO3VBATR 181 +#define AB8540_INT_GPIO4VBATF 182 +#define AB8540_INT_GPIO4VBATR 183 +/* ab8540_irq_regoffset[23] -> IT[Source|Latch|Mask]29 */ +#define AB8540_INT_SYSCLKREQ2F 184 +#define AB8540_INT_SYSCLKREQ2R 185 +#define AB8540_INT_SYSCLKREQ3F 186 +#define AB8540_INT_SYSCLKREQ3R 187 +#define AB8540_INT_SYSCLKREQ4F 188 +#define AB8540_INT_SYSCLKREQ4R 189 +#define AB8540_INT_SYSCLKREQ5F 190 +#define AB8540_INT_SYSCLKREQ5R 191 +/* ab8540_irq_regoffset[24] -> IT[Source|Latch|Mask]30 */ +#define AB8540_INT_PWMOUT1F 192 +#define AB8540_INT_PWMOUT1R 193 +#define AB8540_INT_PWMCTRL0F 194 +#define AB8540_INT_PWMCTRL0R 195 +#define AB8540_INT_PWMCTRL1F 196 +#define AB8540_INT_PWMCTRL1R 197 +#define AB8540_INT_SYSCLKREQ6F 198 +#define AB8540_INT_SYSCLKREQ6R 199 +/* ab8540_irq_regoffset[25] -> IT[Source|Latch|Mask]31 */ +#define AB8540_INT_PWMEXTVIBRA1F 200 +#define AB8540_INT_PWMEXTVIBRA1R 201 +#define AB8540_INT_PWMEXTVIBRA2F 202 +#define AB8540_INT_PWMEXTVIBRA2R 203 +#define AB8540_INT_PWMOUT2F 204 +#define AB8540_INT_PWMOUT2R 205 +#define AB8540_INT_PWMOUT3F 206 +#define AB8540_INT_PWMOUT3R 207 +/* ab8540_irq_regoffset[26] -> IT[Source|Latch|Mask]32 */ +#define AB8540_INT_ADDATA2F 208 +#define AB8540_INT_ADDATA2R 209 +#define AB8540_INT_DADATA2F 210 +#define AB8540_INT_DADATA2R 211 +#define AB8540_INT_FSYNC2F 212 +#define AB8540_INT_FSYNC2R 213 +#define AB8540_INT_BITCLK2F 214 +#define AB8540_INT_BITCLK2R 215 /* * AB8500_AB9540_NR_IRQS is used when configuring the IRQ numbers for the @@ -213,13 +300,24 @@ enum ab8500_version { * which is larger. */ #define AB8500_NR_IRQS 112 -#define AB8505_NR_IRQS 136 -#define AB9540_NR_IRQS 136 +#define AB8505_NR_IRQS 153 +#define AB9540_NR_IRQS 153 +#define AB8540_NR_IRQS 216 /* This is set to the roof of any AB8500 chip variant IRQ counts */ -#define AB8500_MAX_NR_IRQS AB9540_NR_IRQS +#define AB8500_MAX_NR_IRQS AB8540_NR_IRQS #define AB8500_NUM_IRQ_REGS 14 -#define AB9540_NUM_IRQ_REGS 17 +#define AB9540_NUM_IRQ_REGS 20 +#define AB8540_NUM_IRQ_REGS 27 + +/* Turn On Status Event */ +#define AB8500_POR_ON_VBAT 0x01 +#define AB8500_POW_KEY_1_ON 0x02 +#define AB8500_POW_KEY_2_ON 0x04 +#define AB8500_RTC_ALARM 0x08 +#define AB8500_MAIN_CH_DET 0x10 +#define AB8500_VBUS_DET 0x20 +#define AB8500_USB_ID_DET 0x40 /** * struct ab8500 - ab8500 internal structure @@ -335,10 +433,79 @@ static inline int is_ab8500_2p0_or_earlier(struct ab8500 *ab) return (is_ab8500(ab) && (ab->chip_id <= AB8500_CUT2P0)); } +static inline int is_ab8500_3p3_or_earlier(struct ab8500 *ab) +{ + return (is_ab8500(ab) && (ab->chip_id <= AB8500_CUT3P3)); +} + /* exclude also ab8505, ab9540... */ static inline int is_ab8500_2p0(struct ab8500 *ab) { return (is_ab8500(ab) && (ab->chip_id == AB8500_CUT2P0)); } +static inline int is_ab8505_1p0_or_earlier(struct ab8500 *ab) +{ + return (is_ab8505(ab) && (ab->chip_id <= AB8500_CUT1P0)); +} + +static inline int is_ab8505_2p0(struct ab8500 *ab) +{ + return (is_ab8505(ab) && (ab->chip_id == AB8500_CUT2P0)); +} + +static inline int is_ab9540_1p0_or_earlier(struct ab8500 *ab) +{ + return (is_ab9540(ab) && (ab->chip_id <= AB8500_CUT1P0)); +} + +static inline int is_ab9540_2p0(struct ab8500 *ab) +{ + return (is_ab9540(ab) && (ab->chip_id == AB8500_CUT2P0)); +} + +/* + * Be careful, the marketing name for this chip is 2.1 + * but the value read from the chip is 3.0 (0x30) + */ +static inline int is_ab9540_3p0(struct ab8500 *ab) +{ + return (is_ab9540(ab) && (ab->chip_id == AB8500_CUT3P0)); +} + +static inline int is_ab8540_1p0_or_earlier(struct ab8500 *ab) +{ + return is_ab8540(ab) && (ab->chip_id <= AB8500_CUT1P0); +} + +static inline int is_ab8540_1p1_or_earlier(struct ab8500 *ab) +{ + return is_ab8540(ab) && (ab->chip_id <= AB8500_CUT1P1); +} + +static inline int is_ab8540_1p2_or_earlier(struct ab8500 *ab) +{ + return is_ab8540(ab) && (ab->chip_id <= AB8500_CUT1P2); +} + +static inline int is_ab8540_2p0_or_earlier(struct ab8500 *ab) +{ + return is_ab8540(ab) && (ab->chip_id <= AB8500_CUT2P0); +} + +static inline int is_ab8540_2p0(struct ab8500 *ab) +{ + return is_ab8540(ab) && (ab->chip_id == AB8500_CUT2P0); +} + +static inline int is_ab8505_2p0_earlier(struct ab8500 *ab) +{ + return (is_ab8505(ab) && (ab->chip_id < AB8500_CUT2P0)); +} + +static inline int is_ab9540_2p0_or_earlier(struct ab8500 *ab) +{ + return (is_ab9540(ab) && (ab->chip_id < AB8500_CUT2P0)); +} + #endif /* MFD_AB8500_H */ -- cgit v1.2.3 From 0493e6493031523f78680b4469f02fc1b2d440f3 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Tue, 8 Jan 2013 10:41:02 +0100 Subject: pinctrl: add abx500 pinctrl driver core This adds the AB8500 core driver, which will be utilized by the follow-on drivers for different ABx500 variants. Sselect the driver from the DBX500_SOC, as this chip is powering and clocking that SoC. Cc: Samuel Ortiz Signed-off-by: Patrice Chotard Signed-off-by: Linus Walleij --- include/linux/mfd/abx500/ab8500-gpio.h | 15 +++++++++++++-- include/linux/mfd/abx500/ab8500.h | 2 +- 2 files changed, 14 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-gpio.h b/include/linux/mfd/abx500/ab8500-gpio.h index 2387c207ea86..e8c8281e194a 100644 --- a/include/linux/mfd/abx500/ab8500-gpio.h +++ b/include/linux/mfd/abx500/ab8500-gpio.h @@ -14,10 +14,21 @@ * registers. */ -struct ab8500_gpio_platform_data { +struct abx500_gpio_platform_data { int gpio_base; u32 irq_base; - u8 config_reg[8]; +}; + +enum abx500_gpio_pull_updown { + ABX500_GPIO_PULL_DOWN = 0x0, + ABX500_GPIO_PULL_NONE = 0x1, + ABX500_GPIO_PULL_UP = 0x3, +}; + +enum abx500_gpio_vinsel { + ABX500_GPIO_VINSEL_VBAT = 0x0, + ABX500_GPIO_VINSEL_VIN_1V8 = 0x1, + ABX500_GPIO_VINSEL_VDD_BIF = 0x2, }; #endif /* _AB8500_GPIO_H */ diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index e640ea059be2..fc0534483c72 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -385,7 +385,7 @@ struct ab8500_platform_data { struct ab8500_regulator_reg_init *regulator_reg_init; int num_regulator; struct regulator_init_data *regulator; - struct ab8500_gpio_platform_data *gpio; + struct abx500_gpio_platform_data *gpio; struct ab8500_codec_platform_data *codec; }; -- cgit v1.2.3 From a6ca2e10f795111a90a4efabb07717258669e03d Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 26 Jan 2013 21:38:35 +0100 Subject: ssb: add gpio_to_irq The old bcm47xx gpio code had support for gpio_to_irq, but the new code did not provide this function, but returned -ENXIO all the time. This patch adds the missing function. arch/mips/bcm47xx/wgt634u.c calls gpio_to_irq() and got the correct irq number with the old gpio handling code. With this patch the code in wgt634u.c should work again. I do not have a wgt634u to test this. Signed-off-by: Hauke Mehrtens Signed-off-by: John W. Linville --- include/linux/ssb/ssb_driver_mips.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ssb/ssb_driver_mips.h b/include/linux/ssb/ssb_driver_mips.h index 07a9c7a2e088..afe79d40a99e 100644 --- a/include/linux/ssb/ssb_driver_mips.h +++ b/include/linux/ssb/ssb_driver_mips.h @@ -45,6 +45,11 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore) { } +static inline unsigned int ssb_mips_irq(struct ssb_device *dev) +{ + return 0; +} + #endif /* CONFIG_SSB_DRIVER_MIPS */ #endif /* LINUX_SSB_MIPSCORE_H_ */ -- cgit v1.2.3 From 8f1ca2683225afa21b827ff620a6225c390771a9 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 26 Jan 2013 21:39:44 +0100 Subject: bcma: add gpio_to_irq The old bcm47xx gpio code had support for gpio_to_irq, but the new code did not provide this function, but returned -ENXIO all the time. This patch adds the missing function. Signed-off-by: Hauke Mehrtens Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_mips.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h index 0d1ea297851a..fb61f3fb4ddb 100644 --- a/include/linux/bcma/bcma_driver_mips.h +++ b/include/linux/bcma/bcma_driver_mips.h @@ -42,13 +42,18 @@ struct bcma_drv_mips { #ifdef CONFIG_BCMA_DRIVER_MIPS extern void bcma_core_mips_init(struct bcma_drv_mips *mcore); extern void bcma_core_mips_early_init(struct bcma_drv_mips *mcore); + +extern unsigned int bcma_core_irq(struct bcma_device *core); #else static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { } static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { } + +static inline unsigned int bcma_core_irq(struct bcma_device *core) +{ + return 0; +} #endif extern u32 bcma_cpu_clock(struct bcma_drv_mips *mcore); -extern unsigned int bcma_core_irq(struct bcma_device *core); - #endif /* LINUX_BCMA_DRIVER_MIPS_H_ */ -- cgit v1.2.3 From 18367681a10bd29c3f2305e6b7b984de5b33d548 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= =?UTF-8?q?=E6=98=8E?= Date: Wed, 30 Jan 2013 09:27:52 +0000 Subject: ipv6 flowlabel: Convert np->ipv6_fl_list to RCU. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/linux/ipv6.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index e971e3742172..850e95bc766c 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -214,7 +214,7 @@ struct ipv6_pinfo { struct ipv6_mc_socklist __rcu *ipv6_mc_list; struct ipv6_ac_socklist *ipv6_ac_list; - struct ipv6_fl_socklist *ipv6_fl_list; + struct ipv6_fl_socklist __rcu *ipv6_fl_list; struct ipv6_txoptions *opt; struct sk_buff *pktoptions; -- cgit v1.2.3 From d560040f7d6fbe0a2990b8f6edca1815e19e72f5 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Thu, 31 Jan 2013 11:12:56 +0100 Subject: spi: spi-gpio: fix compilation warning on 64 bits systems SPI_GPIO_NO_MOSI and SPI_GPIO_NO_MISO flags are type casted to unsigned long, yet, they are to be stored in an unsigned int field in the spi_gpio_platform_data structure. This leads to the following warning during compilation on 64 bits systems: warning: large integer implicitly truncated to unsigned type [-Woverflow] Signed-off-by: Maxime Ripard Reported-by: Fengguang Wu Signed-off-by: Mark Brown --- include/linux/spi/spi_gpio.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spi/spi_gpio.h b/include/linux/spi/spi_gpio.h index 369b3d7d5b95..1634ce31c06d 100644 --- a/include/linux/spi/spi_gpio.h +++ b/include/linux/spi/spi_gpio.h @@ -62,8 +62,8 @@ */ struct spi_gpio_platform_data { unsigned sck; - unsigned mosi; - unsigned miso; + unsigned long mosi; + unsigned long miso; u16 num_chipselect; }; -- cgit v1.2.3 From 2663960c159f23cbfb8e196c96e9fc9f3b5f1a8d Mon Sep 17 00:00:00 2001 From: Sukadev Bhattiprolu Date: Tue, 22 Jan 2013 22:24:23 -0800 Subject: perf: Make EVENT_ATTR global Rename EVENT_ATTR() to PMU_EVENT_ATTR() and make it global so it is available to all architectures. Further to allow architectures flexibility, have PMU_EVENT_ATTR() pass in the variable name as a parameter. Changelog[v2] - [Jiri Olsa] No need to define PMU_EVENT_PTR() Signed-off-by: Sukadev Bhattiprolu Acked-by: Jiri Olsa Cc: Andi Kleen Cc: Anton Blanchard Cc: Ingo Molnar Cc: Jiri Olsa Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Robert Richter Cc: Stephane Eranian Cc: linuxppc-dev@ozlabs.org Link: http://lkml.kernel.org/r/20130123062422.GC13720@us.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- include/linux/perf_event.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 6bfb2faa0b19..42adf012145d 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -817,6 +817,17 @@ do { \ } while (0) +struct perf_pmu_events_attr { + struct device_attribute attr; + u64 id; +}; + +#define PMU_EVENT_ATTR(_name, _var, _id, _show) \ +static struct perf_pmu_events_attr _var = { \ + .attr = __ATTR(_name, 0444, _show, NULL), \ + .id = _id, \ +}; + #define PMU_FORMAT_ATTR(_name, _format) \ static ssize_t \ _name##_show(struct device *dev, \ -- cgit v1.2.3 From 955154fa33df2b74f0fea8e7c84df6dfd954dab2 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 30 Jan 2013 23:07:10 +0000 Subject: net/mlx4_en: Don't reassign port mac address on firmware that supports it Mac reassignments should only be done when not supported by the firmware. To accomplish that, checking firmware capability bit to know whether we should reassign macs in the driver. Signed-off-by: Matan Barak Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- include/linux/mlx4/device.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 20ea939c22a6..1883e8e84718 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -150,7 +150,8 @@ enum { MLX4_DEV_CAP_FLAG2_RSS = 1LL << 0, MLX4_DEV_CAP_FLAG2_RSS_TOP = 1LL << 1, MLX4_DEV_CAP_FLAG2_RSS_XOR = 1LL << 2, - MLX4_DEV_CAP_FLAG2_FS_EN = 1LL << 3 + MLX4_DEV_CAP_FLAG2_FS_EN = 1LL << 3, + MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN = 1LL << 4 }; enum { -- cgit v1.2.3 From 12572dbb53638c6e454ef831c8fee7de3df24389 Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Mon, 14 Jan 2013 17:05:21 +0000 Subject: clockevents: Add generic timer broadcast receiver Currently the broadcast mechanism used for timers is abstracted by a function pointer on struct clock_event_device. As the fundamental mechanism for broadcast is architecture-specific, this ties each clock_event_device driver to a single architecture, even where the driver is otherwise generic. This patch adds a standard path for the receipt of timer broadcasts, so drivers and/or architecture backends need not manage redundant lists of timers for the purpose of routing broadcast timer ticks. [tglx: Made the implementation depend on the config switch as well ] Signed-off-by: Mark Rutland Reviewed-by: Santosh Shilimkar Cc: linux-arm-kernel@lists.infradead.org Cc: nico@linaro.org Cc: Will.Deacon@arm.com Cc: Marc.Zyngier@arm.com Cc: john.stultz@linaro.org Link: http://lkml.kernel.org/r/1358183124-28461-2-git-send-email-mark.rutland@arm.com Tested-by: Santosh Shilimkar Reviewed-by: Stephen Boyd Signed-off-by: Thomas Gleixner --- include/linux/clockchips.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h index 8a7096fcb01e..e1089aa7816d 100644 --- a/include/linux/clockchips.h +++ b/include/linux/clockchips.h @@ -161,6 +161,10 @@ clockevents_calc_mult_shift(struct clock_event_device *ce, u32 freq, u32 minsec) extern void clockevents_suspend(void); extern void clockevents_resume(void); +#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST +extern int tick_receive_broadcast(void); +#endif + #ifdef CONFIG_GENERIC_CLOCKEVENTS extern void clockevents_notify(unsigned long reason, void *arg); #else -- cgit v1.2.3 From 12ad10004645d38356b14d1fbba379c523a61916 Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Mon, 14 Jan 2013 17:05:22 +0000 Subject: clockevents: Add generic timer broadcast function Currently, the timer broadcast mechanism is defined by a function pointer on struct clock_event_device. As the fundamental mechanism for broadcast is architecture-specific, this means that clock_event_device drivers cannot be shared across multiple architectures. This patch adds an (optional) architecture-specific function for timer tick broadcast, allowing drivers which may require broadcast functionality to be shared across multiple architectures. Signed-off-by: Mark Rutland Reviewed-by: Santosh Shilimkar Cc: linux-arm-kernel@lists.infradead.org Cc: nico@linaro.org Cc: Will.Deacon@arm.com Cc: Marc.Zyngier@arm.com Cc: john.stultz@linaro.org Link: http://lkml.kernel.org/r/1358183124-28461-3-git-send-email-mark.rutland@arm.com Tested-by: Santosh Shilimkar Reviewed-by: Stephen Boyd Signed-off-by: Thomas Gleixner --- include/linux/clockchips.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h index e1089aa7816d..66346521cb65 100644 --- a/include/linux/clockchips.h +++ b/include/linux/clockchips.h @@ -162,6 +162,11 @@ extern void clockevents_suspend(void); extern void clockevents_resume(void); #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST +#ifdef CONFIG_ARCH_HAS_TICK_BROADCAST +extern void tick_broadcast(const struct cpumask *mask); +#else +#define tick_broadcast NULL +#endif extern int tick_receive_broadcast(void); #endif -- cgit v1.2.3 From 6fcdf4facb85e7d54ff6195378dd2ba8e0baccc4 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 30 Jan 2013 21:50:08 -0500 Subject: wanrouter: delete now orphaned header content, files/drivers The wanrouter support was identified earlier as unused for years, and so the previous commit totally decoupled it from the kernel, leaving the related wanrouter files present, but totally inert. Here we take the final step in that cleanup, by doing a wholesale removal of these files. The two step process is used so that the large deletion is decoupled from the git history of files that we still care about. The drivers deleted here all were dependent on the Kconfig setting CONFIG_WAN_ROUTER_DRIVERS. A stub wanrouter.h header (kernel & uapi) are left behind so that drivers/isdn/i4l/isdn_x25iface.c continues to compile, and so that we don't accidentally break userspace that expected these defines. Cc: Joe Perches Cc: Dan Carpenter Cc: Arnaldo Carvalho de Melo Signed-off-by: Paul Gortmaker --- include/linux/cyclomx.h | 77 ---------------------------- include/linux/cycx_drv.h | 64 ----------------------- include/linux/wanrouter.h | 127 ++-------------------------------------------- 3 files changed, 4 insertions(+), 264 deletions(-) delete mode 100644 include/linux/cyclomx.h delete mode 100644 include/linux/cycx_drv.h (limited to 'include/linux') diff --git a/include/linux/cyclomx.h b/include/linux/cyclomx.h deleted file mode 100644 index b88f7f428e58..000000000000 --- a/include/linux/cyclomx.h +++ /dev/null @@ -1,77 +0,0 @@ -#ifndef _CYCLOMX_H -#define _CYCLOMX_H -/* -* cyclomx.h Cyclom 2X WAN Link Driver. -* User-level API definitions. -* -* Author: Arnaldo Carvalho de Melo -* -* Copyright: (c) 1998-2003 Arnaldo Carvalho de Melo -* -* Based on wanpipe.h by Gene Kozin -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License -* as published by the Free Software Foundation; either version -* 2 of the License, or (at your option) any later version. -* ============================================================================ -* 2000/07/13 acme remove crap #if KERNEL_VERSION > blah -* 2000/01/21 acme rename cyclomx_open to cyclomx_mod_inc_use_count -* and cyclomx_close to cyclomx_mod_dec_use_count -* 1999/05/19 acme wait_queue_head_t wait_stats(support for 2.3.*) -* 1999/01/03 acme judicious use of data types -* 1998/12/27 acme cleanup: PACKED not needed -* 1998/08/08 acme Version 0.0.1 -*/ - -#include -#include - -#ifdef __KERNEL__ -/* Kernel Interface */ - -#include /* Cyclom 2X support module API definitions */ -#include /* Cyclom 2X firmware module definitions */ -#ifdef CONFIG_CYCLOMX_X25 -#include -#endif - -/* Adapter Data Space. - * This structure is needed because we handle multiple cards, otherwise - * static data would do it. - */ -struct cycx_device { - char devname[WAN_DRVNAME_SZ + 1];/* card name */ - struct cycx_hw hw; /* hardware configuration */ - struct wan_device wandev; /* WAN device data space */ - u32 state_tick; /* link state timestamp */ - spinlock_t lock; - char in_isr; /* interrupt-in-service flag */ - char buff_int_mode_unbusy; /* flag for carrying out dev_tint */ - wait_queue_head_t wait_stats; /* to wait for the STATS indication */ - void __iomem *mbox; /* -> mailbox */ - void (*isr)(struct cycx_device* card); /* interrupt service routine */ - int (*exec)(struct cycx_device* card, void* u_cmd, void* u_data); - union { -#ifdef CONFIG_CYCLOMX_X25 - struct { /* X.25 specific data */ - u32 lo_pvc; - u32 hi_pvc; - u32 lo_svc; - u32 hi_svc; - struct cycx_x25_stats stats; - spinlock_t lock; - u32 connection_keys; - } x; -#endif - } u; -}; - -/* Public Functions */ -void cycx_set_state(struct cycx_device *card, int state); - -#ifdef CONFIG_CYCLOMX_X25 -int cycx_x25_wan_init(struct cycx_device *card, wandev_conf_t *conf); -#endif -#endif /* __KERNEL__ */ -#endif /* _CYCLOMX_H */ diff --git a/include/linux/cycx_drv.h b/include/linux/cycx_drv.h deleted file mode 100644 index 12fe6b0bfcff..000000000000 --- a/include/linux/cycx_drv.h +++ /dev/null @@ -1,64 +0,0 @@ -/* -* cycx_drv.h CYCX Support Module. Kernel API Definitions. -* -* Author: Arnaldo Carvalho de Melo -* -* Copyright: (c) 1998-2003 Arnaldo Carvalho de Melo -* -* Based on sdladrv.h by Gene Kozin -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License -* as published by the Free Software Foundation; either version -* 2 of the License, or (at your option) any later version. -* ============================================================================ -* 1999/10/23 acme cycxhw_t cleanup -* 1999/01/03 acme more judicious use of data types... -* uclong, ucchar, etc deleted, the u8, u16, u32 -* types are the portable way to go. -* 1999/01/03 acme judicious use of data types... u16, u32, etc -* 1998/12/26 acme FIXED_BUFFERS, CONF_OFFSET, -* removal of cy_read{bwl} -* 1998/08/08 acme Initial version. -*/ -#ifndef _CYCX_DRV_H -#define _CYCX_DRV_H - -#define CYCX_WINDOWSIZE 0x4000 /* default dual-port memory window size */ -#define GEN_CYCX_INTR 0x02 -#define RST_ENABLE 0x04 -#define START_CPU 0x06 -#define RST_DISABLE 0x08 -#define FIXED_BUFFERS 0x08 -#define TEST_PATTERN 0xaa55 -#define CMD_OFFSET 0x20 -#define CONF_OFFSET 0x0380 -#define RESET_OFFSET 0x3c00 /* For reset file load */ -#define DATA_OFFSET 0x0100 /* For code and data files load */ -#define START_OFFSET 0x3ff0 /* 80186 starts here */ - -/** - * struct cycx_hw - Adapter hardware configuration - * @fwid - firmware ID - * @irq - interrupt request level - * @dpmbase - dual-port memory base - * @dpmsize - dual-port memory size - * @reserved - reserved for future use - */ -struct cycx_hw { - u32 fwid; - int irq; - void __iomem *dpmbase; - u32 dpmsize; - u32 reserved[5]; -}; - -/* Function Prototypes */ -extern int cycx_setup(struct cycx_hw *hw, void *sfm, u32 len, unsigned long base); -extern int cycx_down(struct cycx_hw *hw); -extern int cycx_peek(struct cycx_hw *hw, u32 addr, void *buf, u32 len); -extern int cycx_poke(struct cycx_hw *hw, u32 addr, void *buf, u32 len); -extern int cycx_exec(void __iomem *addr); - -extern void cycx_intr(struct cycx_hw *hw); -#endif /* _CYCX_DRV_H */ diff --git a/include/linux/wanrouter.h b/include/linux/wanrouter.h index cec4b4159767..8198a63cf459 100644 --- a/include/linux/wanrouter.h +++ b/include/linux/wanrouter.h @@ -1,129 +1,10 @@ -/***************************************************************************** -* wanrouter.h Definitions for the WAN Multiprotocol Router Module. -* This module provides API and common services for WAN Link -* Drivers and is completely hardware-independent. -* -* Author: Nenad Corbic -* Gideon Hack -* Additions: Arnaldo Melo -* -* Copyright: (c) 1995-2000 Sangoma Technologies Inc. -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License -* as published by the Free Software Foundation; either version -* 2 of the License, or (at your option) any later version. -* ============================================================================ -* Jul 21, 2000 Nenad Corbic Added WAN_FT1_READY State -* Feb 24, 2000 Nenad Corbic Added support for socket based x25api -* Jan 28, 2000 Nenad Corbic Added support for the ASYNC protocol. -* Oct 04, 1999 Nenad Corbic Updated for 2.1.0 release -* Jun 02, 1999 Gideon Hack Added support for the S514 adapter. -* May 23, 1999 Arnaldo Melo Added local_addr to wanif_conf_t -* WAN_DISCONNECTING state added -* Jul 20, 1998 David Fong Added Inverse ARP options to 'wanif_conf_t' -* Jun 12, 1998 David Fong Added Cisco HDLC support. -* Dec 16, 1997 Jaspreet Singh Moved 'enable_IPX' and 'network_number' to -* 'wanif_conf_t' -* Dec 05, 1997 Jaspreet Singh Added 'pap', 'chap' to 'wanif_conf_t' -* Added 'authenticator' to 'wan_ppp_conf_t' -* Nov 06, 1997 Jaspreet Singh Changed Router Driver version to 1.1 from 1.0 -* Oct 20, 1997 Jaspreet Singh Added 'cir','bc','be' and 'mc' to 'wanif_conf_t' -* Added 'enable_IPX' and 'network_number' to -* 'wan_device_t'. Also added defines for -* UDP PACKET TYPE, Interrupt test, critical values -* for RACE conditions. -* Oct 05, 1997 Jaspreet Singh Added 'dlci_num' and 'dlci[100]' to -* 'wan_fr_conf_t' to configure a list of dlci(s) -* for a NODE -* Jul 07, 1997 Jaspreet Singh Added 'ttl' to 'wandev_conf_t' & 'wan_device_t' -* May 29, 1997 Jaspreet Singh Added 'tx_int_enabled' to 'wan_device_t' -* May 21, 1997 Jaspreet Singh Added 'udp_port' to 'wan_device_t' -* Apr 25, 1997 Farhan Thawar Added 'udp_port' to 'wandev_conf_t' -* Jan 16, 1997 Gene Kozin router_devlist made public -* Jan 02, 1997 Gene Kozin Initial version (based on wanpipe.h). -*****************************************************************************/ +/* + * wanrouter.h Legacy declarations kept around until X25 is removed + */ + #ifndef _ROUTER_H #define _ROUTER_H #include -/****** Kernel Interface ****************************************************/ - -#include /* support for device drivers */ -#include /* proc filesystem pragmatics */ -#include /* support for network drivers */ -#include /* Support for SMP Locking */ - -/*---------------------------------------------------------------------------- - * WAN device data space. - */ -struct wan_device { - unsigned magic; /* magic number */ - char* name; /* -> WAN device name (ASCIIZ) */ - void* private; /* -> driver private data */ - unsigned config_id; /* Configuration ID */ - /****** hardware configuration ******/ - unsigned ioport; /* adapter I/O port base #1 */ - char S514_cpu_no[1]; /* PCI CPU Number */ - unsigned char S514_slot_no; /* PCI Slot Number */ - unsigned long maddr; /* dual-port memory address */ - unsigned msize; /* dual-port memory size */ - int irq; /* interrupt request level */ - int dma; /* DMA request level */ - unsigned bps; /* data transfer rate */ - unsigned mtu; /* max physical transmit unit size */ - unsigned udp_port; /* UDP port for management */ - unsigned char ttl; /* Time To Live for UDP security */ - unsigned enable_tx_int; /* Transmit Interrupt enabled or not */ - char interface; /* RS-232/V.35, etc. */ - char clocking; /* external/internal */ - char line_coding; /* NRZ/NRZI/FM0/FM1, etc. */ - char station; /* DTE/DCE, primary/secondary, etc. */ - char connection; /* permanent/switched/on-demand */ - char signalling; /* Signalling RS232 or V35 */ - char read_mode; /* read mode: Polling or interrupt */ - char new_if_cnt; /* Number of interfaces per wanpipe */ - char del_if_cnt; /* Number of times del_if() gets called */ - unsigned char piggyback; /* Piggibacking a port */ - unsigned hw_opt[4]; /* other hardware options */ - /****** status and statistics *******/ - char state; /* device state */ - char api_status; /* device api status */ - struct net_device_stats stats; /* interface statistics */ - unsigned reserved[16]; /* reserved for future use */ - unsigned long critical; /* critical section flag */ - spinlock_t lock; /* Support for SMP Locking */ - - /****** device management methods ***/ - int (*setup) (struct wan_device *wandev, wandev_conf_t *conf); - int (*shutdown) (struct wan_device *wandev); - int (*update) (struct wan_device *wandev); - int (*ioctl) (struct wan_device *wandev, unsigned cmd, - unsigned long arg); - int (*new_if)(struct wan_device *wandev, struct net_device *dev, - wanif_conf_t *conf); - int (*del_if)(struct wan_device *wandev, struct net_device *dev); - /****** maintained by the router ****/ - struct wan_device* next; /* -> next device */ - struct net_device* dev; /* list of network interfaces */ - unsigned ndev; /* number of interfaces */ - struct proc_dir_entry *dent; /* proc filesystem entry */ -}; - -/* Public functions available for device drivers */ -extern int register_wan_device(struct wan_device *wandev); -extern int unregister_wan_device(char *name); - -/* Proc interface functions. These must not be called by the drivers! */ -extern int wanrouter_proc_init(void); -extern void wanrouter_proc_cleanup(void); -extern int wanrouter_proc_add(struct wan_device *wandev); -extern int wanrouter_proc_delete(struct wan_device *wandev); -extern long wanrouter_ioctl(struct file *file, unsigned int cmd, unsigned long arg); - -/* Public Data */ -/* list of registered devices */ -extern struct wan_device *wanrouter_router_devlist; - #endif /* _ROUTER_H */ -- cgit v1.2.3 From 97cc019ee56d52005ea4544af17bef268c464862 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 1 Feb 2013 08:46:56 +0100 Subject: bcma: cc: fix (and rename) define of NAND flash type MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_chipcommon.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index 9a0e3fa3ca95..6a299f416288 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -27,7 +27,7 @@ #define BCMA_CC_FLASHT_NONE 0x00000000 /* No flash */ #define BCMA_CC_FLASHT_STSER 0x00000100 /* ST serial flash */ #define BCMA_CC_FLASHT_ATSER 0x00000200 /* Atmel serial flash */ -#define BCMA_CC_FLASHT_NFLASH 0x00000200 /* NAND flash */ +#define BCMA_CC_FLASHT_NAND 0x00000300 /* NAND flash */ #define BCMA_CC_FLASHT_PARA 0x00000700 /* Parallel flash */ #define BCMA_CC_CAP_PLLT 0x00038000 /* PLL Type */ #define BCMA_PLLTYPE_NONE 0x00000000 -- cgit v1.2.3 From b8eed8af94f9203e0cc39245ea335f4b8dc1ed31 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 14 Jan 2013 13:23:03 +0000 Subject: cpufreq: Simplify __cpufreq_remove_dev() __cpufreq_remove_dev() is called on multiple occasions: cpufreq_driver unregister and cpu removals. Current implementation of this routine is overly complex without much need. If the cpu to be removed is the policy->cpu, we remove the policy first and add all other cpus again from policy->cpus and then finally call __cpufreq_remove_dev() again to remove the cpu to be deleted. Haahhhh.. There exist a simple solution to removal of a cpu: - Simply use the old policy structure - update its fields like: policy->cpu, etc. - notify any users of cpufreq, which depend on changing policy->cpu Hence this patch, which tries to implement the above theory. It is tested well by myself on ARM big.LITTLE TC2 SoC, which has 5 cores (2 A15 and 3 A7). Both A15's share same struct policy and all A7's share same policy structure. Signed-off-by: Viresh Kumar Tested-by: Shawn Guo Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index a55b88eaf96a..52be2d0c994a 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -93,7 +93,9 @@ struct cpufreq_policy { cpumask_var_t related_cpus; /* CPUs with any coordination */ unsigned int shared_type; /* ANY or ALL affected CPUs should set cpufreq */ - unsigned int cpu; /* cpu nr of registered CPU */ + unsigned int cpu; /* cpu nr of CPU managing this policy */ + unsigned int last_cpu; /* cpu nr of previous CPU that managed + * this policy */ struct cpufreq_cpuinfo cpuinfo;/* see above */ unsigned int min; /* in kHz */ @@ -112,10 +114,11 @@ struct cpufreq_policy { struct completion kobj_unregister; }; -#define CPUFREQ_ADJUST (0) -#define CPUFREQ_INCOMPATIBLE (1) -#define CPUFREQ_NOTIFY (2) -#define CPUFREQ_START (3) +#define CPUFREQ_ADJUST (0) +#define CPUFREQ_INCOMPATIBLE (1) +#define CPUFREQ_NOTIFY (2) +#define CPUFREQ_START (3) +#define CPUFREQ_UPDATE_POLICY_CPU (4) #define CPUFREQ_SHARED_TYPE_NONE (0) /* None */ #define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */ @@ -405,6 +408,7 @@ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); +void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy); void cpufreq_frequency_table_put_attr(unsigned int cpu); #endif /* _LINUX_CPUFREQ_H */ -- cgit v1.2.3 From 9d95046e5d6afd6d7ae86fb71ab59c6faf0db8de Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Sun, 20 Jan 2013 10:24:28 +0000 Subject: cpufreq: Add a get_current_driver helper Add a helper function to return cpufreq_driver->name. Signed-off-by: Borislav Petkov Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 52be2d0c994a..1f3a726640e8 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -411,4 +411,5 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy); void cpufreq_frequency_table_put_attr(unsigned int cpu); +const char *cpufreq_get_current_driver(void); #endif /* _LINUX_CPUFREQ_H */ -- cgit v1.2.3 From ab45bd9bed36ad6c471b090bb8846ab7228fdf11 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 28 Jan 2013 14:50:39 +0100 Subject: cpufreq: Sort function prototypes properly Move function prototypes to a place where they logically fit better. Signed-off-by: Borislav Petkov Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 1f3a726640e8..5fdc6c6e3f8a 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -311,6 +311,9 @@ __ATTR(_name, 0444, show_##_name, NULL) static struct global_attr _name = \ __ATTR(_name, 0644, show_##_name, store_##_name) +struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu); +void cpufreq_cpu_put(struct cpufreq_policy *data); +const char *cpufreq_get_current_driver(void); /********************************************************************* * CPUFREQ 2.6. INTERFACE * @@ -400,8 +403,6 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy, /* the following 3 funtions are for cpufreq core use only */ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu); -struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu); -void cpufreq_cpu_put(struct cpufreq_policy *data); /* the following are really really optional */ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs; @@ -411,5 +412,4 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy); void cpufreq_frequency_table_put_attr(unsigned int cpu); -const char *cpufreq_get_current_driver(void); #endif /* _LINUX_CPUFREQ_H */ -- cgit v1.2.3 From 300586778d405f0a4d1f6dc51fcfb4fed567d020 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 28 Jan 2013 16:13:14 +0000 Subject: ARM / highbank: add support for pl320 IPC The pl320 IPC allows for interprocessor communication between the highbank A9 and the EnergyCore Management Engine. The pl320 implements a straightforward mailbox protocol. Signed-off-by: Mark Langsdorf Signed-off-by: Rob Herring Signed-off-by: Rafael J. Wysocki --- include/linux/mailbox.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 include/linux/mailbox.h (limited to 'include/linux') diff --git a/include/linux/mailbox.h b/include/linux/mailbox.h new file mode 100644 index 000000000000..5161f63ec1c8 --- /dev/null +++ b/include/linux/mailbox.h @@ -0,0 +1,17 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +int pl320_ipc_transmit(u32 *data); +int pl320_ipc_register_notifier(struct notifier_block *nb); +int pl320_ipc_unregister_notifier(struct notifier_block *nb); -- cgit v1.2.3 From 951fc5f45836988c7df1d05c7f4658f331e7a920 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 31 Jan 2013 02:03:53 +0000 Subject: cpufreq: Update Documentation for cpus and related_cpus Documentation related to cpus and related_cpus is confusing and not very clear. Over that CPUFreq core has seen much changes recently. Lets update documentation and comments for cpus and related_cpus. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 5fdc6c6e3f8a..753b198750cf 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -89,8 +89,10 @@ struct cpufreq_real_policy { }; struct cpufreq_policy { - cpumask_var_t cpus; /* CPUs requiring sw coordination */ - cpumask_var_t related_cpus; /* CPUs with any coordination */ + /* CPUs sharing clock, require sw coordination */ + cpumask_var_t cpus; /* Online CPUs only */ + cpumask_var_t related_cpus; /* Online + Offline CPUs */ + unsigned int shared_type; /* ANY or ALL affected CPUs should set cpufreq */ unsigned int cpu; /* cpu nr of CPU managing this policy */ -- cgit v1.2.3 From 2624f90c16413990ecb0414400174a066319a9f5 Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Thu, 31 Jan 2013 09:44:40 +0000 Subject: cpufreq: governors: implement generic policy_is_shared Implement a generic helper function policy_is_shared() to replace the current dbs_sw_coordinated_cpus() at cpufreq level, so that it can be used by code other than cpufreq governors. Suggested-by: Viresh Kumar Signed-off-by: Fabio Baltieri Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 753b198750cf..feb360c8aa88 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -127,6 +127,11 @@ struct cpufreq_policy { #define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */ #define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent CPU*/ +static inline bool policy_is_shared(struct cpufreq_policy *policy) +{ + return cpumask_weight(policy->cpus) > 1; +} + /******************** cpufreq transition notifiers *******************/ #define CPUFREQ_PRECHANGE (0) -- cgit v1.2.3 From b394058f064848deac7a7cd6942b6521d7b3fe1d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 1 Feb 2013 05:42:58 +0000 Subject: cpufreq: governors: Reset tunables only for cpufreq_unregister_governor() Currently, whenever governor->governor() is called for CPUFRREQ_GOV_START event we reset few tunables of governor. Which isn't correct, as this routine is called for every cpu hot-[un]plugging event. We should actually be resetting these only when the governor module is removed and re-installed. Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index feb360c8aa88..6bf3f2d12c90 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -183,6 +183,7 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div, u_int mu struct cpufreq_governor { char name[CPUFREQ_NAME_LEN]; + int initialized; int (*governor) (struct cpufreq_policy *policy, unsigned int event); ssize_t (*show_setspeed) (struct cpufreq_policy *policy, -- cgit v1.2.3 From 62b36cc1c83aca1cd252772e82cbc5d9ef8ff25b Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 1 Feb 2013 06:40:02 +0000 Subject: cpufreq: Remove unnecessary use of policy->shared_type policy->shared_type field was added only for SoCs with ACPI support: commit 3b2d99429e3386b6e2ac949fc72486509c8bbe36 Author: Venkatesh Pallipadi Date: Wed Dec 14 15:05:00 2005 -0500 P-state software coordination for ACPI core http://bugzilla.kernel.org/show_bug.cgi?id=5737 Many non-ACPI systems are filling this field by mistake, which makes its usage confusing. Lets clean it. Signed-off-by: Viresh Kumar Acked-by: Santosh Shilimkar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 6bf3f2d12c90..a22944ca0526 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -93,7 +93,7 @@ struct cpufreq_policy { cpumask_var_t cpus; /* Online CPUs only */ cpumask_var_t related_cpus; /* Online + Offline CPUs */ - unsigned int shared_type; /* ANY or ALL affected CPUs + unsigned int shared_type; /* ACPI: ANY or ALL affected CPUs should set cpufreq */ unsigned int cpu; /* cpu nr of CPU managing this policy */ unsigned int last_cpu; /* cpu nr of previous CPU that managed @@ -122,6 +122,7 @@ struct cpufreq_policy { #define CPUFREQ_START (3) #define CPUFREQ_UPDATE_POLICY_CPU (4) +/* Only for ACPI */ #define CPUFREQ_SHARED_TYPE_NONE (0) /* None */ #define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */ #define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */ -- cgit v1.2.3 From cfad1ba87150e198be9ea32367a24e500e59de2c Mon Sep 17 00:00:00 2001 From: Eric Lapuyade Date: Tue, 18 Dec 2012 14:53:53 +0100 Subject: NFC: Initial support for Inside Secure microread Inside Secure microread is an HCI based NFC chipset. This initial support includes reader and p2p (Target and initiator) modes. Signed-off-by: Eric Lapuyade Signed-off-by: Samuel Ortiz --- include/linux/platform_data/microread.h | 35 +++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 include/linux/platform_data/microread.h (limited to 'include/linux') diff --git a/include/linux/platform_data/microread.h b/include/linux/platform_data/microread.h new file mode 100644 index 000000000000..cfda59b226ee --- /dev/null +++ b/include/linux/platform_data/microread.h @@ -0,0 +1,35 @@ +/* + * Driver include for the PN544 NFC chip. + * + * Copyright (C) 2011 Tieto Poland + * Copyright (C) 2012 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _MICROREAD_H +#define _MICROREAD_H + +#include + +#define MICROREAD_DRIVER_NAME "microread" + +/* board config platform data for microread */ +struct microread_nfc_platform_data { + unsigned int rst_gpio; + unsigned int irq_gpio; + unsigned int ioh_gpio; +}; + +#endif /* _MICROREAD_H */ -- cgit v1.2.3 From 26aec009f6b61c077c6de1a96cca7a5132851dbe Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Sun, 3 Feb 2013 15:49:47 -0800 Subject: regulator: add device tree support for s5m8767 This device tree support is added for PMIC block of S5m8767 multi function driver. The usage detail is added in the device tree documentation section. This change is tested on exynos5250 based arndale platform by regulator voltage set/get API's. Reviewed-by: Thomas Abraham Signed-off-by: Amit Daniel Kachhap Tested-by: Sachin Kamat Signed-off-by: Mark Brown --- include/linux/mfd/samsung/core.h | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h index b50c38f8bc48..f0f4de3b4ccc 100644 --- a/include/linux/mfd/samsung/core.h +++ b/include/linux/mfd/samsung/core.h @@ -26,6 +26,7 @@ enum sec_device_type { /** * struct sec_pmic_dev - s5m87xx master device for sub-drivers * @dev: master device of the chip (can be used to access platform data) + * @pdata: pointer to private data used to pass platform data to child * @i2c: i2c client private data for regulator * @rtc: i2c client private data for rtc * @iolock: mutex for serializing io access @@ -39,6 +40,7 @@ enum sec_device_type { */ struct sec_pmic_dev { struct device *dev; + struct sec_platform_data *pdata; struct regmap *regmap; struct i2c_client *i2c; struct i2c_client *rtc; @@ -82,11 +84,11 @@ struct sec_platform_data { int buck_gpios[3]; int buck_ds[3]; - int buck2_voltage[8]; + unsigned int buck2_voltage[8]; bool buck2_gpiodvs; - int buck3_voltage[8]; + unsigned int buck3_voltage[8]; bool buck3_gpiodvs; - int buck4_voltage[8]; + unsigned int buck4_voltage[8]; bool buck4_gpiodvs; int buck_set1; @@ -127,6 +129,7 @@ struct sec_platform_data { struct sec_regulator_data { int id; struct regulator_init_data *initdata; + struct device_node *reg_node; }; /* @@ -136,7 +139,7 @@ struct sec_regulator_data { */ struct sec_opmode_data { int id; - int mode; + unsigned int mode; }; /* -- cgit v1.2.3 From c02cf5f8ed6137e2b3b2f10e0fca336e06e09ba4 Mon Sep 17 00:00:00 2001 From: anish kumar Date: Sun, 3 Feb 2013 22:08:23 +0100 Subject: irq_work: Remove return value from the irq_work_queue() function As no one is using the return value of irq_work_queue(), so it is better to just make it void. Signed-off-by: anish kumar Acked-by: Steven Rostedt [ Fix stale comments, remove now unnecessary __irq_work_queue() intermediate function ] Signed-off-by: Frederic Weisbecker Link: http://lkml.kernel.org/r/1359925703-24304-1-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar --- include/linux/irq_work.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h index 6a9e8f5399e2..ce60c084635b 100644 --- a/include/linux/irq_work.h +++ b/include/linux/irq_work.h @@ -16,7 +16,7 @@ void init_irq_work(struct irq_work *work, void (*func)(struct irq_work *)) work->func = func; } -bool irq_work_queue(struct irq_work *work); +void irq_work_queue(struct irq_work *work); void irq_work_run(void); void irq_work_sync(struct irq_work *work); -- cgit v1.2.3 From 3f52b7e328c526fa7a592af9bf5772c591ed38a4 Mon Sep 17 00:00:00 2001 From: Marco Porsch Date: Wed, 30 Jan 2013 18:14:08 +0100 Subject: mac80211: mesh power save basics Add routines to - maintain a PS mode for each peer and a non-peer PS mode - indicate own PS mode in transmitted frames - track neighbor STAs power modes - buffer frames when neighbors are in PS mode - add TIM and Awake Window IE to beacons - release frames in Mesh Peer Service Periods Add local_pm to sta_info to represent the link-specific power mode at this station towards the remote station. When a peer link is established, use the default power mode stored in mesh config. Update the PS status if the peering status of a neighbor changes. Maintain a mesh power mode for non-peer mesh STAs. Set the non-peer power mode to active mode during peering. Authenticated mesh peering is currently not working when either node is configured to be in power save mode. Indicate the current power mode in transmitted frames. Use QoS Nulls to indicate mesh power mode transitions. For performance reasons, calls to the function setting the frame flags are placed in HWMP routing routines, as there the STA pointer is already available. Add peer_pm to sta_info to represent the peer's link-specific power mode towards the local station. Add nonpeer_pm to represent the peer's power mode towards all non-peer stations. Track power modes based on received frames. Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS neighbor counter and group-addressed frame buffer). Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame buffering routines in the tx path. Update num_sta_ps to buffer and release group-addressed frames after DTIM beacons. Announce the awake window duration in beacons if in light or deep sleep mode towards any peer or non-peer. Create a TIM IE similarly to AP mode and add it to mesh beacons. Parse received Awake Window IEs and check TIM IEs for buffered frames. Release frames towards peers in mesh Peer Service Periods. Use the corresponding trigger frames and monitor the MPSP status. Append a QoS Null as trigger frame if neccessary to properly end the MPSP. Currently, in HT channels MPSPs behave imperfectly and show large delay spikes and frame losses. Signed-off-by: Marco Porsch Signed-off-by: Ivan Bezyazychnyy Signed-off-by: Mike Krinkin Signed-off-by: Max Filippov Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 11c8bc87fdcb..7e8a498efe6d 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -151,6 +151,11 @@ /* Mesh Control 802.11s */ #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 +/* Mesh Power Save Level */ +#define IEEE80211_QOS_CTL_MESH_PS_LEVEL 0x0200 +/* Mesh Receiver Service Period Initiated */ +#define IEEE80211_QOS_CTL_RSPI 0x0400 + /* U-APSD queue for WMM IEs sent by AP */ #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7) #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f @@ -675,11 +680,14 @@ struct ieee80211_meshconf_ie { * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure * is ongoing + * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has + * neighbors in deep sleep mode */ enum mesh_config_capab_flags { IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS = 0x01, IEEE80211_MESHCONF_CAPAB_FORWARDING = 0x08, IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING = 0x20, + IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL = 0x40, }; /** -- cgit v1.2.3 From c14b78e7decd0d1d5add6a4604feb8609fe920a9 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 5 Feb 2013 01:50:26 +0100 Subject: netfilter: nfnetlink: add mutex per subsystem This patch replaces the global lock to one lock per subsystem. The per-subsystem lock avoids that processes operating with different subsystems are synchronized. Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter/nfnetlink.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h index 4966ddec039b..ecbb8e495912 100644 --- a/include/linux/netfilter/nfnetlink.h +++ b/include/linux/netfilter/nfnetlink.h @@ -34,8 +34,8 @@ extern int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigne extern int nfnetlink_set_err(struct net *net, u32 pid, u32 group, int error); extern int nfnetlink_unicast(struct sk_buff *skb, struct net *net, u_int32_t pid, int flags); -extern void nfnl_lock(void); -extern void nfnl_unlock(void); +extern void nfnl_lock(__u8 subsys_id); +extern void nfnl_unlock(__u8 subsys_id); #define MODULE_ALIAS_NFNL_SUBSYS(subsys) \ MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys)) -- cgit v1.2.3 From ca2eb5679f8ddffff60156af42595df44a315ef0 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 5 Feb 2013 07:25:17 +0000 Subject: tcp: remove Appropriate Byte Count support TCP Appropriate Byte Count was added by me, but later disabled. There is no point in maintaining it since it is a potential source of bugs and Linux already implements other better window protection heuristics. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/linux/tcp.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 4e1d2283e3cc..6d0d46138ae8 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -246,7 +246,6 @@ struct tcp_sock { u32 sacked_out; /* SACK'd packets */ u32 fackets_out; /* FACK'd packets */ u32 tso_deferred; - u32 bytes_acked; /* Appropriate Byte Counting - RFC3465 */ /* from STCP, retrans queue hinting */ struct sk_buff* lost_skb_hint; -- cgit v1.2.3 From c0a05bf0182efdf7cd1fd8aa327e7a602360b67e Mon Sep 17 00:00:00 2001 From: Steffen Trumtrar Date: Tue, 18 Dec 2012 11:32:03 +0100 Subject: of: add 'const' to of_node_full_name parameter As the function just returns the np->full_name or the string "", the passed device_node pointer is not changed in any way. The passed parameter can therefore be a const pointer. Also, fix the following error from checkpatch.pl: ERROR: "foo* bar" should be "foo *bar" +static inline const char* of_node_full_name(const struct device_node *np) Signed-off-by: Steffen Trumtrar Signed-off-by: Grant Likely --- include/linux/of.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/of.h b/include/linux/of.h index 5ebcc5c8e423..1e0d0c1bfb5e 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -160,7 +160,7 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size) #define OF_BAD_ADDR ((u64)-1) -static inline const char* of_node_full_name(struct device_node *np) +static inline const char *of_node_full_name(const struct device_node *np) { return np ? np->full_name : ""; } -- cgit v1.2.3 From 5372d2d71c46e5649e5d2edd4514adcd6fe7a085 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 12 Oct 2012 23:01:58 -0700 Subject: hwmon: Driver for Maxim MAX6697 and compatibles Add support for MAX6581, MAX6602, MAX6622, MAX6636, MAX6689, MAX6693, MAX6694, MAX6697, MAX6698, and MAX6699 temperature sensors Signed-off-by: Guenter Roeck Reviewed-by: Jean Delvare --- include/linux/platform_data/max6697.h | 36 +++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 include/linux/platform_data/max6697.h (limited to 'include/linux') diff --git a/include/linux/platform_data/max6697.h b/include/linux/platform_data/max6697.h new file mode 100644 index 000000000000..ed9d3b3daf02 --- /dev/null +++ b/include/linux/platform_data/max6697.h @@ -0,0 +1,36 @@ +/* + * max6697.h + * Copyright (c) 2012 Guenter Roeck + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef MAX6697_H +#define MAX6697_H + +#include + +/* + * For all bit masks: + * bit 0: local temperature + * bit 1..7: remote temperatures + */ +struct max6697_platform_data { + bool smbus_timeout_disable; /* set to disable SMBus timeouts */ + bool extended_range_enable; /* set to enable extended temp range */ + bool beta_compensation; /* set to enable beta compensation */ + u8 alert_mask; /* set bit to 1 to disable alert */ + u8 over_temperature_mask; /* set bit to 1 to disable */ + u8 resistance_cancellation; /* set bit to 0 to disable + * bit mask for MAX6581, + * boolean for other chips + */ + u8 ideality_mask; /* set bit to 0 to disable */ + u8 ideality_value; /* transistor ideality as per + * MAX6581 datasheet + */ +}; + +#endif /* MAX6697_H */ -- cgit v1.2.3 From ca99ca14c95ae49fb4c9cd3abf5f84d11a7e8a61 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Tue, 5 Feb 2013 08:05:43 +0000 Subject: netpoll: protect napi_poll and poll_controller during dev_[open|close] Ivan Vercera was recently backporting commit 9c13cb8bb477a83b9a3c9e5a5478a4e21294a760 to a RHEL kernel, and I noticed that, while this patch protects the tg3 driver from having its ndo_poll_controller routine called during device initalization, it does nothing for the driver during shutdown. I.e. it would be entirely possible to have the ndo_poll_controller method (or subsequently the ndo_poll) routine called for a driver in the netpoll path on CPU A while in parallel on CPU B, the ndo_close or ndo_open routine could be called. Given that the two latter routines tend to initizlize and free many data structures that the former two rely on, the result can easily be data corruption or various other crashes. Furthermore, it seems that this is potentially a problem with all net drivers that support netpoll, and so this should ideally be fixed in a common path. As Ben H Pointed out to me, we can't preform dev_open/dev_close in atomic context, so I've come up with this solution. We can use a mutex to sleep in open/close paths and just do a mutex_trylock in the napi poll path and abandon the poll attempt if we're locked, as we'll just retry the poll on the next send anyway. I've tested this here by flooding netconsole with messages on a system whos nic driver I modfied to periodically return NETDEV_TX_BUSY, so that the netpoll tx workqueue would be forced to send frames and poll the device. While this was going on I rapidly ifdown/up'ed the interface and watched for any problems. I've not found any. Signed-off-by: Neil Horman CC: Ivan Vecera CC: "David S. Miller" CC: Ben Hutchings CC: Francois Romieu CC: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netpoll.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index f54c3bb6a22b..ab856d507b7e 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -38,8 +38,9 @@ struct netpoll { struct netpoll_info { atomic_t refcnt; - int rx_flags; + unsigned long rx_flags; spinlock_t rx_lock; + struct mutex dev_lock; struct list_head rx_np; /* netpolls that registered an rx_hook */ struct sk_buff_head neigh_tx; /* list of neigh requests to reply to */ @@ -51,6 +52,14 @@ struct netpoll_info { struct rcu_head rcu; }; +#ifdef CONFIG_NETPOLL +extern int netpoll_rx_disable(struct net_device *dev); +extern void netpoll_rx_enable(struct net_device *dev); +#else +static inline int netpoll_rx_disable(struct net_device *dev) { return 0; } +static inline void netpoll_rx_enable(struct net_device *dev) { return; } +#endif + void netpoll_send_udp(struct netpoll *np, const char *msg, int len); void netpoll_print_options(struct netpoll *np); int netpoll_parse_options(struct netpoll *np, char *opt); -- cgit v1.2.3 From 3b72c2fe0c6bbec42ed7f899931daef227b80322 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Tue, 5 Feb 2013 08:26:48 +0000 Subject: drivers: net:ethernet: cpsw: add support for VLAN adding support for VLAN interface for cpsw. CPSW VLAN Capability * Can filter VLAN packets in Hardware Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- include/linux/platform_data/cpsw.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/cpsw.h b/include/linux/platform_data/cpsw.h index 24368a2e8b87..e962cfd552e3 100644 --- a/include/linux/platform_data/cpsw.h +++ b/include/linux/platform_data/cpsw.h @@ -35,6 +35,7 @@ struct cpsw_platform_data { u32 bd_ram_size; /*buffer descriptor ram size */ u32 rx_descs; /* Number of Rx Descriptios */ u32 mac_control; /* Mac control register */ + u16 default_vlan; /* Def VLAN for ALE lookup in VLAN aware mode*/ }; #endif /* __CPSW_H__ */ -- cgit v1.2.3 From e185483e6b84c127d0b1c890b6b703701ae52d35 Mon Sep 17 00:00:00 2001 From: Flavio Leitner Date: Tue, 5 Feb 2013 09:30:55 +0000 Subject: team: allow userspace to take control over carrier Some modes don't require any special carrier handling so in these cases, the kernel can control the carrier as for any other interface. However, some other modes, e.g. lacp, requires more than just that, so userspace needs to control the carrier itself. The daemon today is ready to control it, but the kernel still can change it based on events. This fix so that either kernel or userspace is controlling the carrier. Signed-off-by: Flavio Leitner Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- include/linux/if_team.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/if_team.h b/include/linux/if_team.h index 0245def2aa93..4648d8021244 100644 --- a/include/linux/if_team.h +++ b/include/linux/if_team.h @@ -186,6 +186,7 @@ struct team { const struct team_mode *mode; struct team_mode_ops ops; + bool user_carrier_enabled; bool queue_override_enabled; struct list_head *qom_lists; /* array of queue override mapping lists */ long mode_priv[TEAM_MODE_PRIV_LONGS]; -- cgit v1.2.3 From 12b0004d1d1e2a9aa667412d479041e403bcafae Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 5 Feb 2013 16:36:38 +0000 Subject: net: adjust skb_gso_segment() for calling in rx path skb_gso_segment() is almost always called in tx path, except for openvswitch. It calls this function when it receives the packet and tries to queue it to user-space. In this special case, the ->ip_summed check inside skb_gso_segment() is no longer true, as ->ip_summed value has different meanings on rx path. This patch adjusts skb_gso_segment() so that we can at least avoid such warnings on checksum. Cc: Jesse Gross Cc: David S. Miller Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/linux/netdevice.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 85b0949d9946..ab2774eb49e8 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2662,8 +2662,15 @@ extern int netdev_master_upper_dev_link(struct net_device *dev, extern void netdev_upper_dev_unlink(struct net_device *dev, struct net_device *upper_dev); extern int skb_checksum_help(struct sk_buff *skb); -extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, - netdev_features_t features); +extern struct sk_buff *__skb_gso_segment(struct sk_buff *skb, + netdev_features_t features, bool tx_path); + +static inline +struct sk_buff *skb_gso_segment(struct sk_buff *skb, netdev_features_t features) +{ + return __skb_gso_segment(skb, features, true); +} + #ifdef CONFIG_BUG extern void netdev_rx_csum_fault(struct net_device *dev); #else -- cgit v1.2.3 From cd431e738509e74726055390c9e5e81e8e7e03ec Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 5 Feb 2013 20:22:50 +0000 Subject: macvlan: add multicast filter Setting up IPv6 addresses on configurations with many macvlans is not really working, as many multicast messages are dropped. Add a multicast filter to macvlan to reduce the amount of cloned skbs and overhead. Successfully tested with 1024 macvlans on one ethernet device. Signed-off-by: Eric Dumazet Cc: Ben Greear Signed-off-by: David S. Miller --- include/linux/if_macvlan.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h index f65e8d250f7e..84dde1dd1da4 100644 --- a/include/linux/if_macvlan.h +++ b/include/linux/if_macvlan.h @@ -52,6 +52,9 @@ struct macvlan_pcpu_stats { */ #define MAX_MACVTAP_QUEUES (NR_CPUS < 16 ? NR_CPUS : 16) +#define MACVLAN_MC_FILTER_BITS 8 +#define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS) + struct macvlan_dev { struct net_device *dev; struct list_head list; @@ -59,6 +62,9 @@ struct macvlan_dev { struct macvlan_port *port; struct net_device *lowerdev; struct macvlan_pcpu_stats __percpu *pcpu_stats; + + DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ); + enum macvlan_mode mode; u16 flags; int (*receive)(struct sk_buff *skb); -- cgit v1.2.3 From 6be195886ac26abe0194ed1bc7a9224f8a97c310 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Wed, 6 Feb 2013 18:04:53 -0800 Subject: workqueue: replace WORK_CPU_NONE/LAST with WORK_CPU_END Now that workqueue has moved away from gcwqs, workqueue no longer has the need to have a CPU identifier indicating "no cpu associated" - we now use WORK_OFFQ_POOL_NONE instead - and most uses of WORK_CPU_NONE are gone. The only left usage is as the end marker for for_each_*wq*() iterators, where the name WORK_CPU_NONE is confusing w/o actual WORK_CPU_NONE usages. Similarly, WORK_CPU_LAST which equals WORK_CPU_NONE no longer makes sense. Replace both WORK_CPU_NONE and LAST with WORK_CPU_END. This patch doesn't introduce any functional difference. tj: s/WORK_CPU_LAST/WORK_CPU_END/ and rewrote the description. Signed-off-by: Lai Jiangshan Signed-off-by: Tejun Heo --- include/linux/workqueue.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index a94e4e84e7b1..426c39c2aaa4 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -57,8 +57,7 @@ enum { /* special cpu IDs */ WORK_CPU_UNBOUND = NR_CPUS, - WORK_CPU_NONE = NR_CPUS + 1, - WORK_CPU_LAST = WORK_CPU_NONE, + WORK_CPU_END = NR_CPUS + 1, /* * Reserve 7 bits off of cwq pointer w/ debugobjects turned -- cgit v1.2.3 From 60c057bca22285efefbba033624763a778f243bf Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Wed, 6 Feb 2013 18:04:53 -0800 Subject: workqueue: add delayed_work->wq to simplify reentrancy handling To avoid executing the same work item from multiple CPUs concurrently, a work_struct records the last pool it was on in its ->data so that, on the next queueing, the pool can be queried to determine whether the work item is still executing or not. A delayed_work goes through timer before actually being queued on the target workqueue and the timer needs to know the target workqueue and CPU. This is currently achieved by modifying delayed_work->work.data such that it points to the cwq which points to the target workqueue and the last CPU the work item was on. __queue_delayed_work() extracts the last CPU from delayed_work->work.data and then combines it with the target workqueue to create new work.data. The only thing this rather ugly hack achieves is encoding the target workqueue into delayed_work->work.data without using a separate field, which could be a trade off one can make; unfortunately, this entangles work->data management between regular workqueue and delayed_work code by setting cwq pointer before the work item is actually queued and becomes a hindrance for further improvements of work->data handling. This can be easily made sane by adding a target workqueue field to delayed_work. While delayed_work is used widely in the kernel and this does make it a bit larger (<5%), I think this is the right trade-off especially given the prospect of much saner handling of work->data which currently involves quite tricky memory barrier dancing, and don't expect to see any measureable effect. Add delayed_work->wq and drop the delayed_work->work.data overloading. tj: Rewrote the description. Signed-off-by: Lai Jiangshan Signed-off-by: Tejun Heo --- include/linux/workqueue.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 426c39c2aaa4..a3d7556510c3 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -109,6 +109,9 @@ struct work_struct { struct delayed_work { struct work_struct work; struct timer_list timer; + + /* target workqueue and CPU ->timer uses to queue ->work */ + struct workqueue_struct *wq; int cpu; }; -- cgit v1.2.3 From cf4aebc292fac7f34f8345664320e9d4a42ca76c Mon Sep 17 00:00:00 2001 From: Clark Williams Date: Thu, 7 Feb 2013 09:46:59 -0600 Subject: sched: Move sched.h sysctl bits into separate header Move the sysctl-related bits from include/linux/sched.h into a new file: include/linux/sched/sysctl.h. Then update source files requiring access to those bits by including the new header file. Signed-off-by: Clark Williams Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/20130207094659.06dced96@riff.lan Signed-off-by: Ingo Molnar --- include/linux/sched.h | 91 ----------------------------------------- include/linux/sched/sysctl.h | 97 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 97 insertions(+), 91 deletions(-) create mode 100644 include/linux/sched/sysctl.h (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 719ee0815e3a..8fc9b2710a80 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -304,19 +304,6 @@ static inline void lockup_detector_init(void) } #endif -#ifdef CONFIG_DETECT_HUNG_TASK -extern unsigned int sysctl_hung_task_panic; -extern unsigned long sysctl_hung_task_check_count; -extern unsigned long sysctl_hung_task_timeout_secs; -extern unsigned long sysctl_hung_task_warnings; -extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write, - void __user *buffer, - size_t *lenp, loff_t *ppos); -#else -/* Avoid need for ifdefs elsewhere in the code */ -enum { sysctl_hung_task_timeout_secs = 0 }; -#endif - /* Attach to any functions which should be ignored in wchan output. */ #define __sched __attribute__((__section__(".sched.text"))) @@ -338,23 +325,6 @@ extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner); struct nsproxy; struct user_namespace; -/* - * Default maximum number of active map areas, this limits the number of vmas - * per mm struct. Users can overwrite this number by sysctl but there is a - * problem. - * - * When a program's coredump is generated as ELF format, a section is created - * per a vma. In ELF, the number of sections is represented in unsigned short. - * This means the number of sections should be smaller than 65535 at coredump. - * Because the kernel adds some informative sections to a image of program at - * generating coredump, we need some margin. The number of extra sections is - * 1-3 now and depends on arch. We use "5" as safe margin, here. - */ -#define MAPCOUNT_ELF_CORE_MARGIN (5) -#define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) - -extern int sysctl_max_map_count; - #include #ifdef CONFIG_MMU @@ -1221,12 +1191,6 @@ struct sched_rt_entity { #endif }; -/* - * default timeslice is 100 msecs (used only for SCHED_RR tasks). - * Timeslices get refilled after they expire. - */ -#define RR_TIMESLICE (100 * HZ / 1000) - struct rcu_node; enum perf_event_task_context { @@ -2074,58 +2038,7 @@ extern void wake_up_idle_cpu(int cpu); static inline void wake_up_idle_cpu(int cpu) { } #endif -extern unsigned int sysctl_sched_latency; -extern unsigned int sysctl_sched_min_granularity; -extern unsigned int sysctl_sched_wakeup_granularity; -extern unsigned int sysctl_sched_child_runs_first; - -enum sched_tunable_scaling { - SCHED_TUNABLESCALING_NONE, - SCHED_TUNABLESCALING_LOG, - SCHED_TUNABLESCALING_LINEAR, - SCHED_TUNABLESCALING_END, -}; -extern enum sched_tunable_scaling sysctl_sched_tunable_scaling; - -extern unsigned int sysctl_numa_balancing_scan_delay; -extern unsigned int sysctl_numa_balancing_scan_period_min; -extern unsigned int sysctl_numa_balancing_scan_period_max; -extern unsigned int sysctl_numa_balancing_scan_period_reset; -extern unsigned int sysctl_numa_balancing_scan_size; -extern unsigned int sysctl_numa_balancing_settle_count; - -#ifdef CONFIG_SCHED_DEBUG -extern unsigned int sysctl_sched_migration_cost; -extern unsigned int sysctl_sched_nr_migrate; -extern unsigned int sysctl_sched_time_avg; -extern unsigned int sysctl_timer_migration; -extern unsigned int sysctl_sched_shares_window; - -int sched_proc_update_handler(struct ctl_table *table, int write, - void __user *buffer, size_t *length, - loff_t *ppos); -#endif -#ifdef CONFIG_SCHED_DEBUG -static inline unsigned int get_sysctl_timer_migration(void) -{ - return sysctl_timer_migration; -} -#else -static inline unsigned int get_sysctl_timer_migration(void) -{ - return 1; -} -#endif -extern unsigned int sysctl_sched_rt_period; -extern int sysctl_sched_rt_runtime; - -int sched_rt_handler(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, - loff_t *ppos); - #ifdef CONFIG_SCHED_AUTOGROUP -extern unsigned int sysctl_sched_autogroup_enabled; - extern void sched_autogroup_create_attach(struct task_struct *p); extern void sched_autogroup_detach(struct task_struct *p); extern void sched_autogroup_fork(struct signal_struct *sig); @@ -2141,10 +2054,6 @@ static inline void sched_autogroup_fork(struct signal_struct *sig) { } static inline void sched_autogroup_exit(struct signal_struct *sig) { } #endif -#ifdef CONFIG_CFS_BANDWIDTH -extern unsigned int sysctl_sched_cfs_bandwidth_slice; -#endif - #ifdef CONFIG_RT_MUTEXES extern int rt_mutex_getprio(struct task_struct *p); extern void rt_mutex_setprio(struct task_struct *p, int prio); diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h new file mode 100644 index 000000000000..bac914e458ca --- /dev/null +++ b/include/linux/sched/sysctl.h @@ -0,0 +1,97 @@ +#ifndef _SCHED_SYSCTL_H +#define _SCHED_SYSCTL_H + +#ifdef CONFIG_DETECT_HUNG_TASK +extern unsigned int sysctl_hung_task_panic; +extern unsigned long sysctl_hung_task_check_count; +extern unsigned long sysctl_hung_task_timeout_secs; +extern unsigned long sysctl_hung_task_warnings; +extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write, + void __user *buffer, + size_t *lenp, loff_t *ppos); +#else +/* Avoid need for ifdefs elsewhere in the code */ +enum { sysctl_hung_task_timeout_secs = 0 }; +#endif + +/* + * Default maximum number of active map areas, this limits the number of vmas + * per mm struct. Users can overwrite this number by sysctl but there is a + * problem. + * + * When a program's coredump is generated as ELF format, a section is created + * per a vma. In ELF, the number of sections is represented in unsigned short. + * This means the number of sections should be smaller than 65535 at coredump. + * Because the kernel adds some informative sections to a image of program at + * generating coredump, we need some margin. The number of extra sections is + * 1-3 now and depends on arch. We use "5" as safe margin, here. + */ +#define MAPCOUNT_ELF_CORE_MARGIN (5) +#define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) + +extern int sysctl_max_map_count; + +extern unsigned int sysctl_sched_latency; +extern unsigned int sysctl_sched_min_granularity; +extern unsigned int sysctl_sched_wakeup_granularity; +extern unsigned int sysctl_sched_child_runs_first; + +enum sched_tunable_scaling { + SCHED_TUNABLESCALING_NONE, + SCHED_TUNABLESCALING_LOG, + SCHED_TUNABLESCALING_LINEAR, + SCHED_TUNABLESCALING_END, +}; +extern enum sched_tunable_scaling sysctl_sched_tunable_scaling; + +extern unsigned int sysctl_numa_balancing_scan_delay; +extern unsigned int sysctl_numa_balancing_scan_period_min; +extern unsigned int sysctl_numa_balancing_scan_period_max; +extern unsigned int sysctl_numa_balancing_scan_period_reset; +extern unsigned int sysctl_numa_balancing_scan_size; +extern unsigned int sysctl_numa_balancing_settle_count; + +#ifdef CONFIG_SCHED_DEBUG +extern unsigned int sysctl_sched_migration_cost; +extern unsigned int sysctl_sched_nr_migrate; +extern unsigned int sysctl_sched_time_avg; +extern unsigned int sysctl_timer_migration; +extern unsigned int sysctl_sched_shares_window; + +int sched_proc_update_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *length, + loff_t *ppos); +#endif +#ifdef CONFIG_SCHED_DEBUG +static inline unsigned int get_sysctl_timer_migration(void) +{ + return sysctl_timer_migration; +} +#else +static inline unsigned int get_sysctl_timer_migration(void) +{ + return 1; +} +#endif +extern unsigned int sysctl_sched_rt_period; +extern int sysctl_sched_rt_runtime; + +#ifdef CONFIG_CFS_BANDWIDTH +extern unsigned int sysctl_sched_cfs_bandwidth_slice; +#endif + +#ifdef CONFIG_SCHED_AUTOGROUP +extern unsigned int sysctl_sched_autogroup_enabled; +#endif + +/* + * default timeslice is 100 msecs (used only for SCHED_RR tasks). + * Timeslices get refilled after they expire. + */ +#define RR_TIMESLICE (100 * HZ / 1000) + +int sched_rt_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); + +#endif /* _SCHED_SYSCTL_H */ -- cgit v1.2.3 From ce0dbbbb30aee6a835511d5be446462388ba9eee Mon Sep 17 00:00:00 2001 From: Clark Williams Date: Thu, 7 Feb 2013 09:47:04 -0600 Subject: sched/rt: Add a tuning knob to allow changing SCHED_RR timeslice Add a /proc/sys/kernel scheduler knob named sched_rr_timeslice_ms that allows global changing of the SCHED_RR timeslice value. User visable value is in milliseconds but is stored as jiffies. Setting to 0 (zero) resets to the default (currently 100ms). Signed-off-by: Clark Williams Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/20130207094704.13751796@riff.lan Signed-off-by: Ingo Molnar --- include/linux/sched/sysctl.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index bac914e458ca..d2bb0ae979d0 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -73,6 +73,13 @@ static inline unsigned int get_sysctl_timer_migration(void) return 1; } #endif + +/* + * control realtime throttling: + * + * /proc/sys/kernel/sched_rt_period_us + * /proc/sys/kernel/sched_rt_runtime_us + */ extern unsigned int sysctl_sched_rt_period; extern int sysctl_sched_rt_runtime; @@ -90,7 +97,13 @@ extern unsigned int sysctl_sched_autogroup_enabled; */ #define RR_TIMESLICE (100 * HZ / 1000) -int sched_rt_handler(struct ctl_table *table, int write, +extern int sched_rr_timeslice; + +extern int sched_rr_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); + +extern int sched_rt_handler(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos); -- cgit v1.2.3 From 8bd75c77b7c6a3954140dd2e20346aef3efe4a35 Mon Sep 17 00:00:00 2001 From: Clark Williams Date: Thu, 7 Feb 2013 09:47:07 -0600 Subject: sched/rt: Move rt specific bits into new header file Move rt scheduler definitions out of include/linux/sched.h into new file include/linux/sched/rt.h Signed-off-by: Clark Williams Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/20130207094707.7b9f825f@riff.lan Signed-off-by: Ingo Molnar --- include/linux/sched.h | 55 ++------------------------------------------- include/linux/sched/rt.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+), 53 deletions(-) create mode 100644 include/linux/sched/rt.h (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 8fc9b2710a80..33cc42130371 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1164,6 +1164,7 @@ struct sched_entity { /* rq "owned" by this entity/group: */ struct cfs_rq *my_q; #endif + /* * Load-tracking only depends on SMP, FAIR_GROUP_SCHED dependency below may be * removed when useful for applications beyond shares distribution (e.g. @@ -1191,6 +1192,7 @@ struct sched_rt_entity { #endif }; + struct rcu_node; enum perf_event_task_context { @@ -1596,37 +1598,6 @@ static inline void set_numabalancing_state(bool enabled) } #endif -/* - * Priority of a process goes from 0..MAX_PRIO-1, valid RT - * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH - * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority - * values are inverted: lower p->prio value means higher priority. - * - * The MAX_USER_RT_PRIO value allows the actual maximum - * RT priority to be separate from the value exported to - * user-space. This allows kernel threads to set their - * priority to a value higher than any user task. Note: - * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO. - */ - -#define MAX_USER_RT_PRIO 100 -#define MAX_RT_PRIO MAX_USER_RT_PRIO - -#define MAX_PRIO (MAX_RT_PRIO + 40) -#define DEFAULT_PRIO (MAX_RT_PRIO + 20) - -static inline int rt_prio(int prio) -{ - if (unlikely(prio < MAX_RT_PRIO)) - return 1; - return 0; -} - -static inline int rt_task(struct task_struct *p) -{ - return rt_prio(p->prio); -} - static inline struct pid *task_pid(struct task_struct *task) { return task->pids[PIDTYPE_PID].pid; @@ -2054,26 +2025,6 @@ static inline void sched_autogroup_fork(struct signal_struct *sig) { } static inline void sched_autogroup_exit(struct signal_struct *sig) { } #endif -#ifdef CONFIG_RT_MUTEXES -extern int rt_mutex_getprio(struct task_struct *p); -extern void rt_mutex_setprio(struct task_struct *p, int prio); -extern void rt_mutex_adjust_pi(struct task_struct *p); -static inline bool tsk_is_pi_blocked(struct task_struct *tsk) -{ - return tsk->pi_blocked_on != NULL; -} -#else -static inline int rt_mutex_getprio(struct task_struct *p) -{ - return p->normal_prio; -} -# define rt_mutex_adjust_pi(p) do { } while (0) -static inline bool tsk_is_pi_blocked(struct task_struct *tsk) -{ - return false; -} -#endif - extern bool yield_to(struct task_struct *p, bool preempt); extern void set_user_nice(struct task_struct *p, long nice); extern int task_prio(const struct task_struct *p); @@ -2703,8 +2654,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu) extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask); extern long sched_getaffinity(pid_t pid, struct cpumask *mask); -extern void normalize_rt_tasks(void); - #ifdef CONFIG_CGROUP_SCHED extern struct task_group root_task_group; diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h new file mode 100644 index 000000000000..94e19ea28fc3 --- /dev/null +++ b/include/linux/sched/rt.h @@ -0,0 +1,58 @@ +#ifndef _SCHED_RT_H +#define _SCHED_RT_H + +/* + * Priority of a process goes from 0..MAX_PRIO-1, valid RT + * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH + * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority + * values are inverted: lower p->prio value means higher priority. + * + * The MAX_USER_RT_PRIO value allows the actual maximum + * RT priority to be separate from the value exported to + * user-space. This allows kernel threads to set their + * priority to a value higher than any user task. Note: + * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO. + */ + +#define MAX_USER_RT_PRIO 100 +#define MAX_RT_PRIO MAX_USER_RT_PRIO + +#define MAX_PRIO (MAX_RT_PRIO + 40) +#define DEFAULT_PRIO (MAX_RT_PRIO + 20) + +static inline int rt_prio(int prio) +{ + if (unlikely(prio < MAX_RT_PRIO)) + return 1; + return 0; +} + +static inline int rt_task(struct task_struct *p) +{ + return rt_prio(p->prio); +} + +#ifdef CONFIG_RT_MUTEXES +extern int rt_mutex_getprio(struct task_struct *p); +extern void rt_mutex_setprio(struct task_struct *p, int prio); +extern void rt_mutex_adjust_pi(struct task_struct *p); +static inline bool tsk_is_pi_blocked(struct task_struct *tsk) +{ + return tsk->pi_blocked_on != NULL; +} +#else +static inline int rt_mutex_getprio(struct task_struct *p) +{ + return p->normal_prio; +} +# define rt_mutex_adjust_pi(p) do { } while (0) +static inline bool tsk_is_pi_blocked(struct task_struct *tsk) +{ + return false; +} +#endif + +extern void normalize_rt_tasks(void); + + +#endif /* _SCHED_RT_H */ -- cgit v1.2.3 From 3bc97a782cc8c112f64a25143452b06206364cc8 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Thu, 29 Nov 2012 16:46:05 +0800 Subject: srcu: Remove checks preventing offline CPUs from calling srcu_read_lock() SRCU has its own statemachine and no longer relies on normal RCU. Its read-side critical section can now be used by an offline CPU, so this commit removes the check and the comments, reverting the SRCU portion of c0d6d01b (rcu: Check for illegal use of RCU from offlined CPUs). It also makes the code match the comments in whatisRCU.txt: g. Do you need read-side critical sections that are respected even though they are in the middle of the idle loop, during user-mode execution, or on an offlined CPU? If so, SRCU is the only choice that will work for you. [ paulmck: There is at least one remaining issue, namely use of lockdep with tracing enabled. ] Signed-off-by: Lai Jiangshan Signed-off-by: Paul E. McKenney --- include/linux/srcu.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/srcu.h b/include/linux/srcu.h index 6eb691b08358..ae3ee39eb699 100644 --- a/include/linux/srcu.h +++ b/include/linux/srcu.h @@ -163,9 +163,6 @@ void srcu_barrier(struct srcu_struct *sp); * power mode. This way we can notice an extended quiescent state to * other CPUs that started a grace period. Otherwise we would delay any * grace period as long as we run in the idle task. - * - * Similarly, we avoid claiming an SRCU read lock held if the current - * CPU is offline. */ static inline int srcu_read_lock_held(struct srcu_struct *sp) { @@ -173,8 +170,6 @@ static inline int srcu_read_lock_held(struct srcu_struct *sp) return 1; if (rcu_is_cpu_idle()) return 0; - if (!rcu_lockdep_current_cpu_online()) - return 0; return lock_is_held(&sp->dep_map); } -- cgit v1.2.3 From 511a0868bed6694512348fc177cdfaf3fd97d0bb Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Thu, 29 Nov 2012 16:46:06 +0800 Subject: srcu: Remove checks preventing idle CPUs from calling srcu_read_lock() SRCU has its own statemachine and no longer relies on normal RCU. Its read-side critical section can now be used by an offline CPU, so this commit removes the check and the comments, reverting the SRCU portion of ff195cb6 (rcu: Warn when srcu_read_lock() is used in an extended quiescent state). It also makes the codes match the comments in whatisRCU.txt: g. Do you need read-side critical sections that are respected even though they are in the middle of the idle loop, during user-mode execution, or on an offlined CPU? If so, SRCU is the only choice that will work for you. [ paulmck: There is at least one remaining issue, namely use of lockdep with tracing enabled. ] Signed-off-by: Lai Jiangshan Signed-off-by: Paul E. McKenney --- include/linux/srcu.h | 21 +++------------------ 1 file changed, 3 insertions(+), 18 deletions(-) (limited to 'include/linux') diff --git a/include/linux/srcu.h b/include/linux/srcu.h index ae3ee39eb699..04f4121a23ae 100644 --- a/include/linux/srcu.h +++ b/include/linux/srcu.h @@ -151,25 +151,14 @@ void srcu_barrier(struct srcu_struct *sp); * Checks debug_lockdep_rcu_enabled() to prevent false positives during boot * and while lockdep is disabled. * - * Note that if the CPU is in the idle loop from an RCU point of view - * (ie: that we are in the section between rcu_idle_enter() and - * rcu_idle_exit()) then srcu_read_lock_held() returns false even if - * the CPU did an srcu_read_lock(). The reason for this is that RCU - * ignores CPUs that are in such a section, considering these as in - * extended quiescent state, so such a CPU is effectively never in an - * RCU read-side critical section regardless of what RCU primitives it - * invokes. This state of affairs is required --- we need to keep an - * RCU-free window in idle where the CPU may possibly enter into low - * power mode. This way we can notice an extended quiescent state to - * other CPUs that started a grace period. Otherwise we would delay any - * grace period as long as we run in the idle task. + * Note that SRCU is based on its own statemachine and it doesn't + * relies on normal RCU, it can be called from the CPU which + * is in the idle loop from an RCU point of view or offline. */ static inline int srcu_read_lock_held(struct srcu_struct *sp) { if (!debug_lockdep_rcu_enabled()) return 1; - if (rcu_is_cpu_idle()) - return 0; return lock_is_held(&sp->dep_map); } @@ -231,8 +220,6 @@ static inline int srcu_read_lock(struct srcu_struct *sp) __acquires(sp) int retval = __srcu_read_lock(sp); rcu_lock_acquire(&(sp)->dep_map); - rcu_lockdep_assert(!rcu_is_cpu_idle(), - "srcu_read_lock() used illegally while idle"); return retval; } @@ -246,8 +233,6 @@ static inline int srcu_read_lock(struct srcu_struct *sp) __acquires(sp) static inline void srcu_read_unlock(struct srcu_struct *sp, int idx) __releases(sp) { - rcu_lockdep_assert(!rcu_is_cpu_idle(), - "srcu_read_unlock() used illegally while idle"); rcu_lock_release(&(sp)->dep_map); __srcu_read_unlock(sp, idx); } -- cgit v1.2.3 From 16a10ffd20a13215243bdba64c8e57ef277a55b9 Mon Sep 17 00:00:00 2001 From: Yan Burman Date: Thu, 7 Feb 2013 02:25:22 +0000 Subject: net/mlx4: Move Ethernet related functionality from mlx4_core to mlx4_en Move low level code that deals with management of Ethernet MACs and QPs from mlx4_core to mlx4_en. Also convert the new functions to deal with MACs in form of char array instead of u64. Actual functions moved: mlx4_replace_mac mlx4_get_eth_qp mlx4_put_eth_qp To conduct this change, some functionality had to be exported from the core, the following functions were added: mlx4_get_base_qp __mlx4_replace_mac (low level function for CX1/A0 compatibility) Signed-off-by: Yan Burman Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- include/linux/mlx4/device.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 1883e8e84718..6d48fce06b4a 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -956,9 +956,8 @@ int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mo int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac); void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac); -int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac); -int mlx4_get_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn); -void mlx4_put_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int qpn); +int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port); +int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac); void mlx4_set_stats_bitmap(struct mlx4_dev *dev, u64 *stats_bitmap); int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu, u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx); -- cgit v1.2.3 From 180996c30517b5374f63df3c9765716c5b477155 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Thu, 7 Feb 2013 05:37:37 +0000 Subject: ssb: get mac address from sprom struct for gige driver The mac address is already stored in the sprom structure by the platform code of the SoC this Ethernet core is found on, it just has to be fetched from this structure instead of accessing the nvram here. This patch also adds a return value to indicate if a mac address could be fetched from the sprom structure. When CONFIG_SSB_DRIVER_GIGE is not set the header file now also declares ssb_gige_get_macaddr(). Signed-off-by: Hauke Mehrtens Acked-by: Michael Buesch Signed-off-by: David S. Miller --- include/linux/ssb/ssb_driver_gige.h | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h index 6b05dcd927ff..86a12b0cb239 100644 --- a/include/linux/ssb/ssb_driver_gige.h +++ b/include/linux/ssb/ssb_driver_gige.h @@ -97,21 +97,16 @@ static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev) return 0; } -#ifdef CONFIG_BCM47XX -#include /* Get the device MAC address */ -static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr) -{ - char buf[20]; - if (nvram_getenv("et0macaddr", buf, sizeof(buf)) < 0) - return; - nvram_parse_macaddr(buf, macaddr); -} -#else -static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr) +static inline int ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr) { + struct ssb_gige *dev = pdev_to_ssb_gige(pdev); + if (!dev) + return -ENODEV; + + memcpy(macaddr, dev->dev->bus->sprom.et0mac, 6); + return 0; } -#endif extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev, struct pci_dev *pdev); @@ -175,6 +170,10 @@ static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev) { return 0; } +static inline int ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr) +{ + return -ENODEV; +} #endif /* CONFIG_SSB_DRIVER_GIGE */ #endif /* LINUX_SSB_DRIVER_GIGE_H_ */ -- cgit v1.2.3 From 7e6c63f03d94278135753fef7ffcc5b03e34282e Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Thu, 7 Feb 2013 05:37:39 +0000 Subject: tg3: add support for Ethernet core in bcm4785 The BCM4785 or sometimes named BMC4705 is a Broadcom SoC which a Gigabit 5750 Ethernet core. The core is connected via PCI with the rest of the SoC, but it uses some extension. This core does not use a firmware or an eeprom. Some devices only have a switch which supports 100MBit/s, this currently does not work with this driver. This patch was original written by Michael Buesch and is in OpenWrt for some years now. This was tested on a Linksys WRT610N V1 and older versions of this patch were tested by other people on different devices. Signed-off-by: Hauke Mehrtens Acked-by: Michael Chan Signed-off-by: David S. Miller --- include/linux/pci_ids.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 0eb65796bcb9..907e7e56fa4b 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2127,6 +2127,7 @@ #define PCI_DEVICE_ID_TIGON3_5754M 0x1672 #define PCI_DEVICE_ID_TIGON3_5755M 0x1673 #define PCI_DEVICE_ID_TIGON3_5756 0x1674 +#define PCI_DEVICE_ID_TIGON3_5750 0x1676 #define PCI_DEVICE_ID_TIGON3_5751 0x1677 #define PCI_DEVICE_ID_TIGON3_5715 0x1678 #define PCI_DEVICE_ID_TIGON3_5715S 0x1679 -- cgit v1.2.3 From afb43e6d88e587441c960a5d214d2c698d076c9c Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Fri, 25 Jan 2013 11:57:48 +0200 Subject: wlcore: remove if_ops from platform_data We can't pass pointers from the platform data to the modules, because with DT it cannot be done. Those pointers are not set by the board files anyway. It's the bus modules that set them, so they can be safely removed from the platform data without changing any board files. Create a new structure that the bus modules pass to wlcore. This structure contains the if_ops pointers and a pointer to the actual platform data. Signed-off-by: Luciano Coelho Reviewed-by: Felipe Balbi --- include/linux/wl12xx.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/wl12xx.h b/include/linux/wl12xx.h index 0d6373195d32..360c9bce665c 100644 --- a/include/linux/wl12xx.h +++ b/include/linux/wl12xx.h @@ -55,8 +55,6 @@ struct wl12xx_platform_data { int board_tcxo_clock; unsigned long platform_quirks; bool pwr_in_suspend; - - struct wl1271_if_operations *ops; }; /* Platform does not support level trigger interrupts */ -- cgit v1.2.3 From 6cc9efed707c575a9e5880ea68f8b9d36b235f1f Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Fri, 25 Jan 2013 12:05:34 +0200 Subject: wlcore: move wl12xx_platform_data up and make it truly optional The platform data is used not only by wlcore-based drivers, but also by wl1251. Move it up in the directory hierarchy to reflect this. Additionally, make it truly optional. At the moment, disabling platform data while wl1251_sdio or wlcore_sdio are enabled doesn't work, but it will be necessary when device tree support is implemented. Signed-off-by: Luciano Coelho Reviewed-by: Felipe Balbi --- include/linux/wl12xx.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/wl12xx.h b/include/linux/wl12xx.h index 360c9bce665c..a54fe82e704b 100644 --- a/include/linux/wl12xx.h +++ b/include/linux/wl12xx.h @@ -24,6 +24,8 @@ #ifndef _LINUX_WL12XX_H #define _LINUX_WL12XX_H +#include + /* Reference clock values */ enum { WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */ @@ -60,10 +62,12 @@ struct wl12xx_platform_data { /* Platform does not support level trigger interrupts */ #define WL12XX_PLATFORM_QUIRK_EDGE_IRQ BIT(0) -#ifdef CONFIG_WL12XX_PLATFORM_DATA +#ifdef CONFIG_WILINK_PLATFORM_DATA int wl12xx_set_platform_data(const struct wl12xx_platform_data *data); +struct wl12xx_platform_data *wl12xx_get_platform_data(void); + #else static inline @@ -72,8 +76,12 @@ int wl12xx_set_platform_data(const struct wl12xx_platform_data *data) return -ENOSYS; } -#endif +static inline +struct wl12xx_platform_data *wl12xx_get_platform_data(void) +{ + return ERR_PTR(-ENODATA); +} -struct wl12xx_platform_data *wl12xx_get_platform_data(void); +#endif #endif -- cgit v1.2.3 From cd7bed00340475ee72a013a070e200e065085ef3 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Tue, 22 Jan 2013 12:26:28 +0200 Subject: spi/pxa2xx: break out the private DMA API usage into a separate file The PXA SPI driver uses PXA platform specific private DMA implementation which does not work on non-PXA platforms. In order to use this driver on other platforms we break out the private DMA implementation into a separate file that gets compiled only when CONFIG_SPI_PXA2XX_PXADMA is set. The DMA functions are stubbed out if there is no DMA implementation selected (i.e we are building on non-PXA platform). While we are there we can kill the dummy DMA bits in pxa2xx_spi.h as they are not needed anymore for CE4100. Once this is done we can add the generic DMA engine support to the driver that allows usage of any DMA controller that implements DMA engine API. Signed-off-by: Mika Westerberg Acked-by: Linus Walleij Tested-by: Lu Cao Signed-off-by: Mark Brown --- include/linux/spi/pxa2xx_spi.h | 80 ------------------------------------------ 1 file changed, 80 deletions(-) (limited to 'include/linux') diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index 053b5ba51b25..d6d2b4d557f8 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -53,85 +53,5 @@ struct pxa2xx_spi_chip { extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); -#else -/* - * This is the implemtation for CE4100 on x86. ARM defines them in mach/ or - * plat/ include path. - * The CE4100 does not provide DMA support. This bits are here to let the driver - * compile and will never be used. Maybe we get DMA support at a later point in - * time. - */ - -#define DCSR(n) (n) -#define DSADR(n) (n) -#define DTADR(n) (n) -#define DCMD(n) (n) -#define DRCMR(n) (n) - -#define DCSR_RUN (1 << 31) /* Run Bit */ -#define DCSR_NODESC (1 << 30) /* No-Descriptor Fetch */ -#define DCSR_STOPIRQEN (1 << 29) /* Stop Interrupt Enable */ -#define DCSR_REQPEND (1 << 8) /* Request Pending (read-only) */ -#define DCSR_STOPSTATE (1 << 3) /* Stop State (read-only) */ -#define DCSR_ENDINTR (1 << 2) /* End Interrupt */ -#define DCSR_STARTINTR (1 << 1) /* Start Interrupt */ -#define DCSR_BUSERR (1 << 0) /* Bus Error Interrupt */ - -#define DCSR_EORIRQEN (1 << 28) /* End of Receive Interrupt Enable */ -#define DCSR_EORJMPEN (1 << 27) /* Jump to next descriptor on EOR */ -#define DCSR_EORSTOPEN (1 << 26) /* STOP on an EOR */ -#define DCSR_SETCMPST (1 << 25) /* Set Descriptor Compare Status */ -#define DCSR_CLRCMPST (1 << 24) /* Clear Descriptor Compare Status */ -#define DCSR_CMPST (1 << 10) /* The Descriptor Compare Status */ -#define DCSR_EORINTR (1 << 9) /* The end of Receive */ - -#define DRCMR_MAPVLD (1 << 7) /* Map Valid */ -#define DRCMR_CHLNUM 0x1f /* mask for Channel Number */ - -#define DDADR_DESCADDR 0xfffffff0 /* Address of next descriptor */ -#define DDADR_STOP (1 << 0) /* Stop */ - -#define DCMD_INCSRCADDR (1 << 31) /* Source Address Increment Setting. */ -#define DCMD_INCTRGADDR (1 << 30) /* Target Address Increment Setting. */ -#define DCMD_FLOWSRC (1 << 29) /* Flow Control by the source. */ -#define DCMD_FLOWTRG (1 << 28) /* Flow Control by the target. */ -#define DCMD_STARTIRQEN (1 << 22) /* Start Interrupt Enable */ -#define DCMD_ENDIRQEN (1 << 21) /* End Interrupt Enable */ -#define DCMD_ENDIAN (1 << 18) /* Device Endian-ness. */ -#define DCMD_BURST8 (1 << 16) /* 8 byte burst */ -#define DCMD_BURST16 (2 << 16) /* 16 byte burst */ -#define DCMD_BURST32 (3 << 16) /* 32 byte burst */ -#define DCMD_WIDTH1 (1 << 14) /* 1 byte width */ -#define DCMD_WIDTH2 (2 << 14) /* 2 byte width (HalfWord) */ -#define DCMD_WIDTH4 (3 << 14) /* 4 byte width (Word) */ -#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */ - -/* - * Descriptor structure for PXA's DMA engine - * Note: this structure must always be aligned to a 16-byte boundary. - */ - -typedef enum { - DMA_PRIO_HIGH = 0, - DMA_PRIO_MEDIUM = 1, - DMA_PRIO_LOW = 2 -} pxa_dma_prio; - -/* - * DMA registration - */ - -static inline int pxa_request_dma(char *name, - pxa_dma_prio prio, - void (*irq_handler)(int, void *), - void *data) -{ - return -ENODEV; -} - -static inline void pxa_free_dma(int dma_ch) -{ -} - #endif #endif -- cgit v1.2.3 From 5928808ef623347e0d4aa22327b992e9e125b6ad Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Tue, 22 Jan 2013 12:26:29 +0200 Subject: spi/pxa2xx: add support for DMA engine To be able to use DMA with this driver on non-PXA platforms we implement support for the generic DMA engine API. This lets user to use different DMA engines with little or no modification to the driver. Request lines and channel numbers can be passed to the driver from the platform specific data. The DMA engine implementation will be selected by default even on PXA platform. User can select the legacy DMA API by enabling Kconfig option CONFIG_SPI_PXA2XX_PXADMA. Signed-off-by: Mika Westerberg Acked-by: Linus Walleij Tested-by: Lu Cao Signed-off-by: Mark Brown --- include/linux/spi/pxa2xx_spi.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index d6d2b4d557f8..e5cbbc4c57f7 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -29,6 +29,12 @@ struct pxa2xx_spi_master { u16 num_chipselect; u8 enable_dma; + /* DMA engine specific config */ + int rx_chan_id; + int tx_chan_id; + int rx_slave_id; + int tx_slave_id; + /* For non-PXA arches */ struct ssp_device ssp; }; -- cgit v1.2.3 From a0d2642e9296882cda3ad03ff3d9a6649cd70439 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Tue, 22 Jan 2013 12:26:32 +0200 Subject: spi/pxa2xx: add support for Intel Low Power Subsystem SPI Intel LPSS SPI is pretty much the same as the PXA27xx SPI except that it has few additional features over the original: o FIFO depth is 256 entries o RX FIFO has one watermark o TX FIFO has two watermarks, low and high o chip select can be controlled by writing to a register The new FIFO registers follow immediately the PXA27xx registers but then there are some additional LPSS private registers at offset 1k or 2k from the base address. For these private registers we add new accessors that take advantage of drv_data->lpss_base once it is resolved. We add a new type LPSS_SSP that can be used to distinguish the LPSS devices from others. Signed-off-by: Mika Westerberg Tested-by: Lu Cao Signed-off-by: Mark Brown --- include/linux/pxa2xx_ssp.h | 9 +++++++++ include/linux/spi/pxa2xx_spi.h | 1 + 2 files changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 065e7f6c3ad7..467cc6307b62 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -155,6 +155,14 @@ #define SSACD_ACDS(x) ((x) << 0) /* Audio clock divider select */ #define SSACD_SCDX8 (1 << 7) /* SYSCLK division ratio select */ +/* LPSS SSP */ +#define SSITF 0x44 /* TX FIFO trigger level */ +#define SSITF_TxLoThresh(x) (((x) - 1) << 8) +#define SSITF_TxHiThresh(x) ((x) - 1) + +#define SSIRF 0x48 /* RX FIFO trigger level */ +#define SSIRF_RxThresh(x) ((x) - 1) + enum pxa_ssp_type { SSP_UNDEFINED = 0, PXA25x_SSP, /* pxa 210, 250, 255, 26x */ @@ -164,6 +172,7 @@ enum pxa_ssp_type { PXA168_SSP, PXA910_SSP, CE4100_SSP, + LPSS_SSP, }; struct ssp_device { diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index e5cbbc4c57f7..82d5111cd0c2 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -44,6 +44,7 @@ struct pxa2xx_spi_master { */ struct pxa2xx_spi_chip { u8 tx_threshold; + u8 tx_hi_threshold; u8 rx_threshold; u8 dma_burst_size; u32 timeout; -- cgit v1.2.3 From fe20d71f25400cccc8bffef865f79250be7dbc81 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 21 Nov 2012 17:32:30 +0100 Subject: uprobes: Kill uprobe_consumer->filter() uprobe_consumer->filter() is pointless in its current form, kill it. We will add it back, but with the different signature/semantics. Perhaps we will even re-introduce the callsite in handler_chain(), but not to just skip uc->handler(). Signed-off-by: Oleg Nesterov Acked-by: Srikar Dronamraju --- include/linux/uprobes.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index 4f628a6fc5b4..83742b91ff73 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -37,11 +37,6 @@ struct inode; struct uprobe_consumer { int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs); - /* - * filter is optional; If a filter exists, handler is run - * if and only if filter returns true. - */ - bool (*filter)(struct uprobe_consumer *self, struct task_struct *task); struct uprobe_consumer *next; }; -- cgit v1.2.3 From 8a7f2fa0dea3b019500961b86d765e6fdd4bffb2 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Fri, 28 Dec 2012 17:58:38 +0100 Subject: uprobes: Reintroduce uprobe_consumer->filter() Finally add uprobe_consumer->filter() and change consumer_filter() to actually call this method. Note that ->filter() accepts mm_struct, not task_struct. Because: 1. We do not have for_each_mm_user(mm, task). 2. Even if we implement for_each_mm_user(), ->filter() can use it itself. 3. It is not clear who will actually need this interface to do the "nontrivial" filtering. Another argument is "enum uprobe_filter_ctx", consumer->filter() can use it to figure out why/where it was called. For example, perhaps we can add UPROBE_FILTER_PRE_REGISTER used by build_map_info() to quickly "nack" the unwanted mm's. In this case consumer should know that it is called under ->i_mmap_mutex. See the previous discussion at http://marc.info/?t=135214229700002 Perhaps we should pass more arguments, vma/vaddr? Note: this patch obviously can't help to filter out the child created by fork(), this will be addressed later. Signed-off-by: Oleg Nesterov Acked-by: Srikar Dronamraju --- include/linux/uprobes.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index 83742b91ff73..c2df6934fdc6 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -35,8 +35,17 @@ struct inode; # include #endif +enum uprobe_filter_ctx { + UPROBE_FILTER_REGISTER, + UPROBE_FILTER_UNREGISTER, + UPROBE_FILTER_MMAP, +}; + struct uprobe_consumer { int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs); + bool (*filter)(struct uprobe_consumer *self, + enum uprobe_filter_ctx ctx, + struct mm_struct *mm); struct uprobe_consumer *next; }; -- cgit v1.2.3 From da1816b1caeccdff04531e763bb35d7caa3ed19f Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sat, 29 Dec 2012 17:49:11 +0100 Subject: uprobes: Teach handler_chain() to filter out the probed task Currrently the are 2 problems with pre-filtering: 1. It is not possible to add/remove a task (mm) after uprobe_register() 2. A forked child inherits all breakpoints and uprobe_consumer can not control this. This patch does the first step to improve the filtering. handler_chain() removes the breakpoints installed by this uprobe from current->mm if all handlers return UPROBE_HANDLER_REMOVE. Note that handler_chain() relies on ->register_rwsem to avoid the race with uprobe_register/unregister which can add/del a consumer, or even remove and then insert the new uprobe at the same address. Perhaps we will add uprobe_apply_mm(uprobe, mm, is_register) and teach copy_mm() to do filter(UPROBE_FILTER_FORK), but I think this change makes sense anyway. Note: instead of checking the retcode from uc->handler, we could add uc->filter(UPROBE_FILTER_BPHIT). But I think this is not optimal to call 2 hooks in a row. This buys nothing, and if handler/filter do something nontrivial they will probably do the same work twice. Signed-off-by: Oleg Nesterov Acked-by: Srikar Dronamraju --- include/linux/uprobes.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index c2df6934fdc6..95d0002efda5 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -35,6 +35,9 @@ struct inode; # include #endif +#define UPROBE_HANDLER_REMOVE 1 +#define UPROBE_HANDLER_MASK 1 + enum uprobe_filter_ctx { UPROBE_FILTER_REGISTER, UPROBE_FILTER_UNREGISTER, -- cgit v1.2.3 From f22c1bb6b4706be3502b378cb14564449b15f983 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sat, 2 Feb 2013 16:27:52 +0100 Subject: perf: Introduce hw_perf_event->tp_target and ->tp_list sys_perf_event_open()->perf_init_event(event) is called before find_get_context(event), this means that event->ctx == NULL when class->reg(TRACE_REG_PERF_REGISTER/OPEN) is called and thus it can't know if this event is per-task or system-wide. This patch adds hw_perf_event->tp_target for PERF_TYPE_TRACEPOINT, this is analogous to PERF_TYPE_BREAKPOINT/bp_target we already have. The patch also moves ->bp_target up so that it can overlap with the new member, this can help the compiler to generate the better code. trace_uprobe_register() will use it for prefiltering to avoid the unnecessary breakpoints in mm's we do not want to trace. ->tp_target doesn't have its own reference, but we can rely on the fact that either sys_perf_event_open() holds a reference, or it is equal to event->ctx->task. So this pointer is always valid until free_event(). Also add the "struct list_head tp_list" into this union. It is not strictly necessary, but it can simplify the next changes and we can add it for free. Signed-off-by: Oleg Nesterov --- include/linux/perf_event.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 42adf012145d..e47ee462c2f2 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -135,16 +135,21 @@ struct hw_perf_event { struct { /* software */ struct hrtimer hrtimer; }; + struct { /* tracepoint */ + struct task_struct *tp_target; + /* for tp_event->class */ + struct list_head tp_list; + }; #ifdef CONFIG_HAVE_HW_BREAKPOINT struct { /* breakpoint */ - struct arch_hw_breakpoint info; - struct list_head bp_list; /* * Crufty hack to avoid the chicken and egg * problem hw_breakpoint has with context * creation and event initalization. */ struct task_struct *bp_target; + struct arch_hw_breakpoint info; + struct list_head bp_list; }; #endif }; -- cgit v1.2.3 From bdf8647c44766590ed02f9a84a450a796558b753 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 3 Feb 2013 19:21:12 +0100 Subject: uprobes: Introduce uprobe_apply() Currently it is not possible to change the filtering constraints after uprobe_register(), so a consumer can not, say, start to trace a task/mm which was previously filtered out, or remove the no longer needed bp's. Introduce uprobe_apply() which simply does register_for_each_vma() again to consult uprobe_consumer->filter() and install/remove the breakpoints. The only complication is that register_for_each_vma() can no longer assume that uprobe->consumers should be consulter if is_register == T, so we change it to accept "struct uprobe_consumer *new" instead. Unlike uprobe_register(), uprobe_apply(true) doesn't do "unregister" if register_for_each_vma() fails, it is up to caller to handle the error. Note: we probably need to cleanup the current interface, it is strange that uprobe_apply/unregister need inode/offset. We should either change uprobe_register() to return "struct uprobe *", or add a private ->uprobe member in uprobe_consumer. And in the long term uprobe_apply() should take a single argument, uprobe or consumer, even "bool add" should go away. Signed-off-by: Oleg Nesterov --- include/linux/uprobes.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index 95d0002efda5..02b83db8e2c5 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -101,6 +101,7 @@ extern int __weak set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsign extern int __weak set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr); extern bool __weak is_swbp_insn(uprobe_opcode_t *insn); extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc); +extern int uprobe_apply(struct inode *inode, loff_t offset, struct uprobe_consumer *uc, bool); extern void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc); extern int uprobe_mmap(struct vm_area_struct *vma); extern void uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned long end); @@ -124,6 +125,11 @@ uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc) { return -ENOSYS; } +static inline int +uprobe_apply(struct inode *inode, loff_t offset, struct uprobe_consumer *uc, bool add) +{ + return -ENOSYS; +} static inline void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc) { -- cgit v1.2.3 From e5e67305885eb12849b5475764b0542f03dc2b59 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Fri, 8 Feb 2013 10:17:15 +0000 Subject: skbuff: Move definition of NETDEV_FRAG_PAGE_MAX_SIZE In order to address the fact that some devices cannot support the full 32K frag size we need to have the value accessible somewhere so that we can use it to do comparisons against what the device can support. As such I am moving the values out of skbuff.c and into skbuff.h. Signed-off-by: Alexander Duyck Signed-off-by: David S. Miller --- include/linux/skbuff.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 0259b719bebf..d7573c37a51d 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1832,6 +1832,10 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) kfree_skb(skb); } +#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768) +#define NETDEV_FRAG_PAGE_MAX_SIZE (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER) +#define NETDEV_PAGECNT_MAX_BIAS NETDEV_FRAG_PAGE_MAX_SIZE + extern void *netdev_alloc_frag(unsigned int fragsz); extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev, -- cgit v1.2.3 From d6d3c4e656513dcea61ce900f0ecb9ca820ee7cd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Wed, 6 Feb 2013 15:30:56 -0500 Subject: OF: convert devtree lock from rw_lock to raw spinlock With the locking cleanup in place (from "OF: Fixup resursive locking code paths"), we can now do the conversion from the rw_lock to a raw spinlock as required for preempt-rt. The previous cleanup and this conversion were originally separate since they predated when mainline got raw spinlock (in commit c2f21ce2e31286a "locking: Implement new raw_spinlock"). So, at that point in time, the cleanup was considered plausible for mainline, but not this conversion. In any case, we've kept them separate as it makes for easier review and better bisection. Signed-off-by: Thomas Gleixner [PG: taken from preempt-rt, update subject & add a commit log] Signed-off-by: Paul Gortmaker Signed-off-by: Rob Herring --- include/linux/of.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/of.h b/include/linux/of.h index 5ebcc5c8e423..bb35c423b1f9 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -92,7 +92,7 @@ static inline void of_node_put(struct device_node *node) { } extern struct device_node *of_allnodes; extern struct device_node *of_chosen; extern struct device_node *of_aliases; -extern rwlock_t devtree_lock; +extern raw_spinlock_t devtree_lock; static inline bool of_have_populated_dt(void) { -- cgit v1.2.3 From 84e345e4e209cbe796c88fa2ad1732d7121ec100 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Fri, 8 Feb 2013 17:59:53 -0500 Subject: time, Fix setting of hardware clock in NTP code At init time, if the system time is "warped" forward in warp_clock() it will differ from the hardware clock by sys_tz.tz_minuteswest. This time difference is not taken into account when ntp updates the hardware clock, and this causes the system time to jump forward by this offset every reboot. The kernel must take this offset into account when writing the system time to the hardware clock in the ntp code. This patch adds persistent_clock_is_local which indicates that an offset has been applied in warp_clock() and accounts for the "warp" before writing the hardware clock. x86 does not have this problem as rtc writes are software limited to a +/-15 minute window relative to the current rtc time. Other arches, such as powerpc, however do a full synchronization of the system time to the rtc and will see this problem. [v2]: generated against tip/timers/core Signed-off-by: Prarit Bhargava Cc: John Stultz Cc: Thomas Gleixner Signed-off-by: John Stultz --- include/linux/time.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/time.h b/include/linux/time.h index 476e1d7b2c37..a3ab6a814a9c 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -128,6 +128,7 @@ static inline bool has_persistent_clock(void) extern void read_persistent_clock(struct timespec *ts); extern void read_boot_clock(struct timespec *ts); +extern int persistent_clock_is_local; extern int update_persistent_clock(struct timespec now); void timekeeping_init(void); extern int timekeeping_suspended; -- cgit v1.2.3 From 7e73c5ae6e7991a6c01f6d096ff8afaef4458c36 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 6 Feb 2013 13:00:36 +0100 Subject: PM: Introduce suspend state PM_SUSPEND_FREEZE PM_SUSPEND_FREEZE state is a general state that does not need any platform specific support, it equals frozen processes + suspended devices + idle processors. Compared with PM_SUSPEND_MEMORY, PM_SUSPEND_FREEZE saves less power because the system is still in a running state. PM_SUSPEND_FREEZE has less resume latency because it does not touch BIOS, and the processors are in idle state. Compared with RTPM/idle, PM_SUSPEND_FREEZE saves more power as 1. the processor has longer sleep time because processes are frozen. The deeper c-state the processor supports, more power saving we can get. 2. PM_SUSPEND_FREEZE uses system suspend code path, thus we can get more power saving from the devices that does not have good RTPM support. This state is useful for 1) platforms that do not have STR, or have a broken STR. 2) platforms that have an extremely low power idle state, which can be used to replace STR. The following describes how PM_SUSPEND_FREEZE state works. 1. echo freeze > /sys/power/state 2. the processes are frozen. 3. all the devices are suspended. 4. all the processors are blocked by a wait queue 5. all the processors idles and enters (Deep) c-state. 6. an interrupt fires. 7. a processor is woken up and handles the irq. 8. if it is a general event, a) the irq handler runs and quites. b) goto step 4. 9. if it is a real wake event, say, power button pressing, keyboard touch, mouse moving, a) the irq handler runs and activate the wakeup source b) wakeup_source_activate() notifies the wait queue. c) system starts resuming from PM_SUSPEND_FREEZE 10. all the devices are resumed. 11. all the processes are unfrozen. 12. system is back to working. Known Issue: The wakeup of this new PM_SUSPEND_FREEZE state may behave differently from the previous suspend state. Take ACPI platform for example, there are some GPEs that only enabled when the system is in sleep state, to wake the system backk from S3/S4. But we are not touching these GPEs during transition to PM_SUSPEND_FREEZE. This means we may lose some wake event. But on the other hand, as we do not disable all the Interrupts during PM_SUSPEND_FREEZE, we may get some extra "wakeup" Interrupts, that are not available for S3/S4. The patches has been tested on an old Sony laptop, and here are the results: Average Power: 1. RPTM/idle for half an hour: 14.8W, 12.6W, 14.1W, 12.5W, 14.4W, 13.2W, 12.9W 2. Freeze for half an hour: 11W, 10.4W, 9.4W, 11.3W 10.5W 3. RTPM/idle for three hours: 11.6W 4. Freeze for three hours: 10W 5. Suspend to Memory: 0.5~0.9W Average Resume Latency: 1. RTPM/idle with a black screen: (From pressing keyboard to screen back) Less than 0.2s 2. Freeze: (From pressing power button to screen back) 2.50s 3. Suspend to Memory: (From pressing power button to screen back) 4.33s >From the results, we can see that all the platforms should benefit from this patch, even if it does not have Low Power S0. Signed-off-by: Zhang Rui Signed-off-by: Rafael J. Wysocki --- include/linux/suspend.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 0c808d7fa579..d4e3f16d5e89 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -34,8 +34,10 @@ static inline void pm_restore_console(void) typedef int __bitwise suspend_state_t; #define PM_SUSPEND_ON ((__force suspend_state_t) 0) -#define PM_SUSPEND_STANDBY ((__force suspend_state_t) 1) +#define PM_SUSPEND_FREEZE ((__force suspend_state_t) 1) +#define PM_SUSPEND_STANDBY ((__force suspend_state_t) 2) #define PM_SUSPEND_MEM ((__force suspend_state_t) 3) +#define PM_SUSPEND_MIN PM_SUSPEND_FREEZE #define PM_SUSPEND_MAX ((__force suspend_state_t) 4) enum suspend_stat_step { @@ -192,6 +194,7 @@ struct platform_suspend_ops { */ extern void suspend_set_ops(const struct platform_suspend_ops *ops); extern int suspend_valid_only_mem(suspend_state_t state); +extern void freeze_wake(void); /** * arch_suspend_disable_irqs - disable IRQs for suspend @@ -217,6 +220,7 @@ extern int pm_suspend(suspend_state_t state); static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {} static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; } +static inline void freeze_wake(void) {} #endif /* !CONFIG_SUSPEND */ /* struct pbe is used for creating lists of pages that should be restored -- cgit v1.2.3 From 957d1282bb8c07e682e142b9237cd9fcb8348a0b Mon Sep 17 00:00:00 2001 From: Li Fei Date: Fri, 1 Feb 2013 08:56:03 +0000 Subject: suspend: enable freeze timeout configuration through sys At present, the value of timeout for freezing is 20s, which is meaningless in case that one thread is frozen with mutex locked and another thread is trying to lock the mutex, as this time of freezing will fail unavoidably. And if there is no new wakeup event registered, the system will waste at most 20s for such meaningless trying of freezing. With this patch, the value of timeout can be configured to smaller value, so such meaningless trying of freezing will be aborted in earlier time, and later freezing can be also triggered in earlier time. And more power will be saved. In normal case on mobile phone, it costs real little time to freeze processes. On some platform, it only costs about 20ms to freeze user space processes and 10ms to freeze kernel freezable threads. Signed-off-by: Liu Chuansheng Signed-off-by: Li Fei Signed-off-by: Rafael J. Wysocki --- include/linux/freezer.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/freezer.h b/include/linux/freezer.h index e4238ceaa4d6..e70df40d84f6 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -12,6 +12,11 @@ extern atomic_t system_freezing_cnt; /* nr of freezing conds in effect */ extern bool pm_freezing; /* PM freezing in effect */ extern bool pm_nosig_freezing; /* PM nosig freezing in effect */ +/* + * Timeout for stopping processes + */ +extern unsigned int freeze_timeout_msecs; + /* * Check if a process has been frozen */ -- cgit v1.2.3 From 710a03e9349f027cf2d77559973fc06076a4042a Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 15 Jan 2013 16:37:56 +0000 Subject: ARM: ux500: remove irq_base property from platform_data AB8500 GPIO no longer handles its GPIO IRQs. Instead, the AB8500 core driver has taken back the responsibility. Prior to this happening, the AB8500 GPIO driver provided a set of virtual IRQs which were used as a pass-through. These virtual IRQs had a base of MOP500_AB8500_VIR_GPIO_IRQ_BASE, which was passed though pdata. We don't need to do this anymore, so we're pulling out the property from the structure. Cc: arm@kernel.org Acked-by: Olof Johansson Signed-off-by: Lee Jones Signed-off-by: Linus Walleij --- include/linux/mfd/abx500/ab8500-gpio.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mfd/abx500/ab8500-gpio.h b/include/linux/mfd/abx500/ab8500-gpio.h index e8c8281e194a..172b2f201ae0 100644 --- a/include/linux/mfd/abx500/ab8500-gpio.h +++ b/include/linux/mfd/abx500/ab8500-gpio.h @@ -16,7 +16,6 @@ struct abx500_gpio_platform_data { int gpio_base; - u32 irq_base; }; enum abx500_gpio_pull_updown { -- cgit v1.2.3 From 095c3752e673c0ba039a2f67fd867297fde75ae7 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Tue, 29 Jan 2013 15:53:41 +0100 Subject: spi: Document cs_gpios and cs_gpio in kernel-doc This adds missing kernel-doc entries for cs_gpios in struct spi_master and cs_gpio in struct spi_device. Signed-off-by: Andreas Larsson [grant.likely: tweaked the language of the descriptions] Signed-off-by: Grant Likely --- include/linux/spi/spi.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index f62918946d86..30e9c50a5e20 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -57,6 +57,8 @@ extern struct bus_type spi_bus_type; * @modalias: Name of the driver to use with this device, or an alias * for that name. This appears in the sysfs "modalias" attribute * for driver coldplugging, and in uevents used for hotplugging + * @cs_gpio: gpio number of the chipselect line (optional, -EINVAL when + * when not using a GPIO line) * * A @spi_device is used to interchange data between an SPI slave * (usually a discrete chip) and CPU memory. @@ -258,6 +260,9 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * @unprepare_transfer_hardware: there are currently no more messages on the * queue so the subsystem notifies the driver that it may relax the * hardware by issuing this call + * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS + * number. Any individual value may be -EINVAL for CS lines that + * are not GPIOs (driven by the SPI controller itself). * * Each SPI master controller can communicate with one or more @spi_device * children. These make a small bus, sharing MOSI, MISO and SCK signals -- cgit v1.2.3 From d021c344051af91f42c5ba9fdedc176740cbd238 Mon Sep 17 00:00:00 2001 From: Andy King Date: Wed, 6 Feb 2013 14:23:56 +0000 Subject: VSOCK: Introduce VM Sockets VM Sockets allows communication between virtual machines and the hypervisor. User level applications both in a virtual machine and on the host can use the VM Sockets API, which facilitates fast and efficient communication between guest virtual machines and their host. A socket address family, designed to be compatible with UDP and TCP at the interface level, is provided. Today, VM Sockets is used by various VMware Tools components inside the guest for zero-config, network-less access to VMware host services. In addition to this, VMware's users are using VM Sockets for various applications, where network access of the virtual machine is restricted or non-existent. Examples of this are VMs communicating with device proxies for proprietary hardware running as host applications and automated testing of applications running within virtual machines. The VMware VM Sockets are similar to other socket types, like Berkeley UNIX socket interface. The VM Sockets module supports both connection-oriented stream sockets like TCP, and connectionless datagram sockets like UDP. The VM Sockets protocol family is defined as "AF_VSOCK" and the socket operations split for SOCK_DGRAM and SOCK_STREAM. For additional information about the use of VM Sockets, please refer to the VM Sockets Programming Guide available at: https://www.vmware.com/support/developer/vmci-sdk/ Signed-off-by: George Zhang Signed-off-by: Dmitry Torokhov Signed-off-by: Andy king Signed-off-by: David S. Miller --- include/linux/socket.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/socket.h b/include/linux/socket.h index 9a546ff853dc..2b9f74b0ffea 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -178,7 +178,8 @@ struct ucred { #define AF_CAIF 37 /* CAIF sockets */ #define AF_ALG 38 /* Algorithm sockets */ #define AF_NFC 39 /* NFC sockets */ -#define AF_MAX 40 /* For now.. */ +#define AF_VSOCK 40 /* vSockets */ +#define AF_MAX 41 /* For now.. */ /* Protocol families, same as address families. */ #define PF_UNSPEC AF_UNSPEC @@ -221,6 +222,7 @@ struct ucred { #define PF_CAIF AF_CAIF #define PF_ALG AF_ALG #define PF_NFC AF_NFC +#define PF_VSOCK AF_VSOCK #define PF_MAX AF_MAX /* Maximum queue length specifiable by listen. */ -- cgit v1.2.3 From febf018d22347b5df94066bca05d0c11a84e839d Mon Sep 17 00:00:00 2001 From: David Ward Date: Fri, 8 Feb 2013 17:17:06 +0000 Subject: net/802: Implement Multiple Registration Protocol (MRP) Initial implementation of the Multiple Registration Protocol (MRP) from IEEE 802.1Q-2011, based on the existing implementation of the Generic Attribute Registration Protocol (GARP). Signed-off-by: David Ward Acked-by: Patrick McHardy Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ab2774eb49e8..25bd46f52877 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1290,6 +1290,8 @@ struct net_device { }; /* GARP */ struct garp_port __rcu *garp_port; + /* MRP */ + struct mrp_port __rcu *mrp_port; /* class/net/name entry */ struct device dev; -- cgit v1.2.3 From 2c5e89338493882719f8d138f8f2717ee9a04153 Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Sun, 10 Feb 2013 03:50:18 +0000 Subject: ipv6: by default join ff01::1 and in case of forwarding ff01::2 and ff05:2 Cc: Erik Hugne Cc: YOSHIFUJI Hideaki Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/linux/in6.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/in6.h b/include/linux/in6.h index a16e19349ec0..34edf1f6c9a3 100644 --- a/include/linux/in6.h +++ b/include/linux/in6.h @@ -36,4 +36,13 @@ extern const struct in6_addr in6addr_linklocal_allnodes; extern const struct in6_addr in6addr_linklocal_allrouters; #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } } +extern const struct in6_addr in6addr_interfacelocal_allnodes; +#define IN6ADDR_INTERFACELOCAL_ALLNODES_INIT \ + { { { 0xff,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } +extern const struct in6_addr in6addr_interfacelocal_allrouters; +#define IN6ADDR_INTERFACELOCAL_ALLROUTERS_INIT \ + { { { 0xff,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } } +extern const struct in6_addr in6addr_sitelocal_allrouters; +#define IN6ADDR_SITELOCAL_ALLROUTERS_INIT \ + { { { 0xff,5,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } } #endif -- cgit v1.2.3 From 57fa8273a246d6abbbfdc995da6293b0040807d8 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 8 Feb 2013 18:51:05 -0500 Subject: cpuidle: remove vestage definition of cpuidle_state_usage.driver_data This field is no longer used. Signed-off-by: Len Brown Acked-by: Daniel Lezcano --- include/linux/cpuidle.h | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 24cd1037b6d6..480c14dc1ddd 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -32,8 +32,6 @@ struct cpuidle_driver; ****************************/ struct cpuidle_state_usage { - void *driver_data; - unsigned long long disable; unsigned long long usage; unsigned long long time; /* in US */ @@ -62,26 +60,6 @@ struct cpuidle_state { #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000) -/** - * cpuidle_get_statedata - retrieves private driver state data - * @st_usage: the state usage statistics - */ -static inline void *cpuidle_get_statedata(struct cpuidle_state_usage *st_usage) -{ - return st_usage->driver_data; -} - -/** - * cpuidle_set_statedata - stores private driver state data - * @st_usage: the state usage statistics - * @data: the private data - */ -static inline void -cpuidle_set_statedata(struct cpuidle_state_usage *st_usage, void *data) -{ - st_usage->driver_data = data; -} - struct cpuidle_device { unsigned int registered:1; unsigned int enabled:1; -- cgit v1.2.3 From 2cde6acd49daca58b96f1fbc697492825511ad31 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Mon, 11 Feb 2013 10:25:30 +0000 Subject: netpoll: Fix __netpoll_rcu_free so that it can hold the rtnl lock __netpoll_rcu_free is used to free netpoll structures when the rtnl_lock is already held. The mechanism is used to asynchronously call __netpoll_cleanup outside of the holding of the rtnl_lock, so as to avoid deadlock. Unfortunately, __netpoll_cleanup modifies pointers (dev->np), which means the rtnl_lock must be held while calling it. Further, it cannot be held, because rcu callbacks may be issued in softirq contexts, which cannot sleep. Fix this by converting the rcu callback to a work queue that is guaranteed to get scheduled in process context, so that we can hold the rtnl properly while calling __netpoll_cleanup Tested successfully by myself. Signed-off-by: Neil Horman CC: "David S. Miller" CC: Cong Wang CC: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netpoll.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index ab856d507b7e..9d7d8c64f7c8 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -32,7 +32,7 @@ struct netpoll { u8 remote_mac[ETH_ALEN]; struct list_head rx; /* rx_np list element */ - struct rcu_head rcu; + struct work_struct cleanup_work; }; struct netpoll_info { @@ -68,7 +68,7 @@ int netpoll_setup(struct netpoll *np); int netpoll_trap(void); void netpoll_set_trap(int trap); void __netpoll_cleanup(struct netpoll *np); -void __netpoll_free_rcu(struct netpoll *np); +void __netpoll_free_async(struct netpoll *np); void netpoll_cleanup(struct netpoll *np); int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo); void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb, -- cgit v1.2.3 From d9ba8f9e6298af71ec1c1fd3d88c3ef68abd0ec3 Mon Sep 17 00:00:00 2001 From: Mugunthan V N Date: Mon, 11 Feb 2013 09:52:20 +0000 Subject: driver: net: ethernet: cpsw: dual emac interface implementation The CPSW switch can act as Dual EMAC by segregating the switch ports using VLAN and port VLAN as per the TRM description in 14.3.2.10.2 Dual Mac Mode Following CPSW components will be common for both the interfaces. * Interrupt source is common for both eth interfaces * Interrupt pacing is common for both interfaces * Hardware statistics is common for all the ports * CPDMA is common for both eth interface * CPTS is common for both the interface and it should not be enabled on both the interface as timestamping information doesn't contain port information. Constrains * Reserved VID of One port should not be used in other interface which will enable switching functionality * Same VID must not be used in both the interface which will enable switching functionality Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller --- include/linux/platform_data/cpsw.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/platform_data/cpsw.h b/include/linux/platform_data/cpsw.h index e962cfd552e3..798fb80b024b 100644 --- a/include/linux/platform_data/cpsw.h +++ b/include/linux/platform_data/cpsw.h @@ -21,6 +21,8 @@ struct cpsw_slave_data { char phy_id[MII_BUS_ID_SIZE]; int phy_if; u8 mac_addr[ETH_ALEN]; + u16 dual_emac_res_vlan; /* Reserved VLAN for DualEMAC */ + }; struct cpsw_platform_data { @@ -36,6 +38,7 @@ struct cpsw_platform_data { u32 rx_descs; /* Number of Rx Descriptios */ u32 mac_control; /* Mac control register */ u16 default_vlan; /* Def VLAN for ALE lookup in VLAN aware mode*/ + bool dual_emac; /* Enable Dual EMAC mode */ }; #endif /* __CPSW_H__ */ -- cgit v1.2.3 From bd69f73f2c81eed9a398708b8c4bb3409ba1b0f9 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Sun, 10 Feb 2013 22:57:21 +0000 Subject: of: Create function for counting number of phandles in a property This patch creates of_count_phandle_with_args(), a new function for counting the number of phandle+argument tuples in a given property. This is better than the existing method of parsing each phandle individually until parsing fails which is a horribly slow way to do the count. Tested on ARM using the selftest code. v3: - Rebased on top of selftest code cleanup patch v2: - fix bug where of_parse_phandle_with_args() could behave like _count_. - made of_gpio_named_count() into a static inline regardless of CONFIG_OF_GPIO Tested-by: Andreas Larsson Signed-off-by: Grant Likely Cc: Linus Walleij Cc: Rob Herring --- include/linux/of.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/of.h b/include/linux/of.h index b9e1b911f0eb..a0f129284948 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -277,6 +277,8 @@ extern struct device_node *of_parse_phandle(const struct device_node *np, extern int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, const char *cells_name, int index, struct of_phandle_args *out_args); +extern int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, const char *cells_name); extern void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align)); extern int of_alias_get_id(struct device_node *np, const char *stem); @@ -467,6 +469,13 @@ static inline int of_parse_phandle_with_args(struct device_node *np, return -ENOSYS; } +static inline int of_count_phandle_with_args(struct device_node *np, + const char *list_name, + const char *cells_name) +{ + return -ENOSYS; +} + static inline int of_alias_get_id(struct device_node *np, const char *stem) { return -ENOSYS; -- cgit v1.2.3 From e80beb27d2f81a1c3c8887e0e0a82d77bb392d28 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 12 Feb 2013 17:48:37 +0000 Subject: gpio: Make of_count_named_gpios() use new of_count_phandle_with_args() This patch replaces the horribly coded of_count_named_gpios() with a call to of_count_phandle_with_args() which is far more efficient. This also changes the return value of of_gpio_count() & of_gpio_named_count() from 'unsigned int' to 'int' so that it can return an error code. All the users of that function are fixed up to correctly handle a negative return value. v2: Split GPIO portion into a separate patch Tested-by: Andreas Larsson Signed-off-by: Grant Likely Cc: Linus Walleij Cc: Rob Herring --- include/linux/of_gpio.h | 40 +++++++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 17 deletions(-) (limited to 'include/linux') diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h index c454f5796747..a83dc6f5008e 100644 --- a/include/linux/of_gpio.h +++ b/include/linux/of_gpio.h @@ -50,9 +50,6 @@ static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc) extern int of_get_named_gpio_flags(struct device_node *np, const char *list_name, int index, enum of_gpio_flags *flags); -extern unsigned int of_gpio_named_count(struct device_node *np, - const char* propname); - extern int of_mm_gpiochip_add(struct device_node *np, struct of_mm_gpio_chip *mm_gc); @@ -71,12 +68,6 @@ static inline int of_get_named_gpio_flags(struct device_node *np, return -ENOSYS; } -static inline unsigned int of_gpio_named_count(struct device_node *np, - const char* propname) -{ - return 0; -} - static inline int of_gpio_simple_xlate(struct gpio_chip *gc, const struct of_phandle_args *gpiospec, u32 *flags) @@ -90,22 +81,37 @@ static inline void of_gpiochip_remove(struct gpio_chip *gc) { } #endif /* CONFIG_OF_GPIO */ /** - * of_gpio_count - Count GPIOs for a device + * of_gpio_named_count() - Count GPIOs for a device * @np: device node to count GPIOs for + * @propname: property name containing gpio specifier(s) * * The function returns the count of GPIOs specified for a node. + * Note that the empty GPIO specifiers count too. Returns either + * Number of gpios defined in property, + * -EINVAL for an incorrectly formed gpios property, or + * -ENOENT for a missing gpios property * - * Note that the empty GPIO specifiers counts too. For example, - * + * Example: * gpios = <0 - * &pio1 1 2 + * &gpio1 1 2 * 0 - * &pio2 3 4>; + * &gpio2 3 4>; + * + * The above example defines four GPIOs, two of which are not specified. + * This function will return '4' + */ +static inline int of_gpio_named_count(struct device_node *np, const char* propname) +{ + return of_count_phandle_with_args(np, propname, "#gpio-cells"); +} + +/** + * of_gpio_count() - Count GPIOs for a device + * @np: device node to count GPIOs for * - * defines four GPIOs (so this function will return 4), two of which - * are not specified. + * Same as of_gpio_named_count, but hard coded to use the 'gpios' property */ -static inline unsigned int of_gpio_count(struct device_node *np) +static inline int of_gpio_count(struct device_node *np) { return of_gpio_named_count(np, "gpios"); } -- cgit v1.2.3 From 64fd7401c5e4cf7c64452ecd9b700a55a5ebea50 Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Mon, 11 Feb 2013 22:33:20 +0000 Subject: ACPI: Remove the use of CONFIG_ACPI_CONTAINER_MODULE config ACPI_CONTAINER has been changed to bool (y/n), and its module option is no longer valid. So, remove the use of CONFIG_ACPI_CONTAINER_MODULE. Signed-off-by: Toshi Kani Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c6ccd9fa8f08..bcbdd7484e58 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -363,8 +363,7 @@ extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ (defined(CONFIG_ACPI_HOTPLUG_MEMORY) || \ defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)) && \ - (defined(CONFIG_ACPI_CONTAINER) || \ - defined(CONFIG_ACPI_CONTAINER_MODULE)) + defined(CONFIG_ACPI_CONTAINER) #define ACPI_HOTPLUG_OST #endif -- cgit v1.2.3 From ceaa1fef65a7c2e017b260b879b310dd24888083 Mon Sep 17 00:00:00 2001 From: Andrey Vagin Date: Mon, 11 Feb 2013 05:50:17 +0000 Subject: tcp: adding a per-socket timestamp offset This functionality is used for restoring tcp sockets. A tcp timestamp depends on how long a system has been running, so it's differ for each host. The solution is to set a per-socket offset. A per-socket offset for a TIME_WAIT socket is inherited from a proper tcp socket. tcp_request_sock doesn't have a timestamp offset, because the repair mode for them are not implemented. Cc: "David S. Miller" Cc: Alexey Kuznetsov Cc: James Morris Cc: Hideaki YOSHIFUJI Cc: Patrick McHardy Cc: Eric Dumazet Cc: Pavel Emelyanov Signed-off-by: Andrey Vagin Signed-off-by: David S. Miller --- include/linux/tcp.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 6d0d46138ae8..f28408c07dc2 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -162,6 +162,8 @@ struct tcp_sock { u32 rcv_tstamp; /* timestamp of last received ACK (for keepalives) */ u32 lsndtime; /* timestamp of last sent data packet (for restart window) */ + u32 tsoffset; /* timestamp offset */ + struct list_head tsq_node; /* anchor in tsq_tasklet.head list */ unsigned long tsq_flags; @@ -353,6 +355,7 @@ struct tcp_timewait_sock { u32 tw_rcv_nxt; u32 tw_snd_nxt; u32 tw_rcv_wnd; + u32 tw_ts_offset; u32 tw_ts_recent; long tw_ts_recent_stamp; #ifdef CONFIG_TCP_MD5SIG -- cgit v1.2.3 From c9af6db4c11ccc6c3e7f19bbc15d54023956f97c Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Mon, 11 Feb 2013 09:27:41 +0000 Subject: net: Fix possible wrong checksum generation. Patch cef401de7be8c4e (net: fix possible wrong checksum generation) fixed wrong checksum calculation but it broke TSO by defining new GSO type but not a netdev feature for that type. net_gso_ok() would not allow hardware checksum/segmentation offload of such packets without the feature. Following patch fixes TSO and wrong checksum. This patch uses same logic that Eric Dumazet used. Patch introduces new flag SKBTX_SHARED_FRAG if at least one frag can be modified by the user. but SKBTX_SHARED_FRAG flag is kept in skb shared info tx_flags rather than gso_type. tx_flags is better compared to gso_type since we can have skb with shared frag without gso packet. It does not link SHARED_FRAG to GSO, So there is no need to define netdev feature for this. Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller --- include/linux/skbuff.h | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index d7573c37a51d..9da99520ccd5 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -230,6 +230,13 @@ enum { /* generate wifi status information (where possible) */ SKBTX_WIFI_STATUS = 1 << 4, + + /* This indicates at least one fragment might be overwritten + * (as in vmsplice(), sendfile() ...) + * If we need to compute a TX checksum, we'll need to copy + * all frags to avoid possible bad checksum + */ + SKBTX_SHARED_FRAG = 1 << 5, }; /* @@ -307,13 +314,6 @@ enum { SKB_GSO_TCPV6 = 1 << 4, SKB_GSO_FCOE = 1 << 5, - - /* This indicates at least one fragment might be overwritten - * (as in vmsplice(), sendfile() ...) - * If we need to compute a TX checksum, we'll need to copy - * all frags to avoid possible bad checksum - */ - SKB_GSO_SHARED_FRAG = 1 << 6, }; #if BITS_PER_LONG > 32 @@ -2220,7 +2220,8 @@ static inline int skb_linearize(struct sk_buff *skb) */ static inline bool skb_has_shared_frag(const struct sk_buff *skb) { - return skb_shinfo(skb)->gso_type & SKB_GSO_SHARED_FRAG; + return skb_is_nonlinear(skb) && + skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG; } /** -- cgit v1.2.3 From 407af3299ef1ac7e87ce3fb530e32a009d1a9efd Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Wed, 13 Feb 2013 12:00:12 +0000 Subject: bridge: Add netlink interface to configure vlans on bridge ports Add a netlink interface to add and remove vlan configuration on bridge port. The interface uses the RTM_SETLINK message and encodes the vlan configuration inside the IFLA_AF_SPEC. It is possble to include multiple vlans to either add or remove in a single message. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 25bd46f52877..1b90f9401000 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1020,6 +1020,8 @@ struct net_device_ops { int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev); + int (*ndo_bridge_dellink)(struct net_device *dev, + struct nlmsghdr *nlh); int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier); }; -- cgit v1.2.3 From 6cbdceeb1cb12c7d620161925a8c3e81daadb2e4 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Wed, 13 Feb 2013 12:00:13 +0000 Subject: bridge: Dump vlan information from a bridge port Using the RTM_GETLINK dump the vlan filter list of a given bridge port. The information depends on setting the filter flag similar to how nic VF info is dumped. Signed-off-by: Vlad Yasevich Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 1b90f9401000..1964ca66df56 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1019,7 +1019,8 @@ struct net_device_ops { struct nlmsghdr *nlh); int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, - struct net_device *dev); + struct net_device *dev, + u32 filter_mask); int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh); int (*ndo_change_carrier)(struct net_device *dev, -- cgit v1.2.3 From 1690be63a27b20ae65c792729a44f5970561ffa4 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Wed, 13 Feb 2013 12:00:18 +0000 Subject: bridge: Add vlan support to static neighbors When a user adds bridge neighbors, allow him to specify VLAN id. If the VLAN id is not specified, the neighbor will be added for VLANs currently in the ports filter list. If no VLANs are configured on the port, we use vlan 0 and only add 1 entry. Signed-off-by: Vlad Yasevich Acked-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- include/linux/netdevice.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 1964ca66df56..9deb672d999f 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -884,7 +884,8 @@ struct netdev_fcoe_hbainfo { * struct net_device *dev, * const unsigned char *addr, u16 flags) * Adds an FDB entry to dev for addr. - * int (*ndo_fdb_del)(struct ndmsg *ndm, struct net_device *dev, + * int (*ndo_fdb_del)(struct ndmsg *ndm, struct nlattr *tb[], + * struct net_device *dev, * const unsigned char *addr) * Deletes the FDB entry from dev coresponding to addr. * int (*ndo_fdb_dump)(struct sk_buff *skb, struct netlink_callback *cb, @@ -1008,6 +1009,7 @@ struct net_device_ops { const unsigned char *addr, u16 flags); int (*ndo_fdb_del)(struct ndmsg *ndm, + struct nlattr *tb[], struct net_device *dev, const unsigned char *addr); int (*ndo_fdb_dump)(struct sk_buff *skb, -- cgit v1.2.3 From 112202d9098aae2c36436e5178c0cf3ced423c7b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 13 Feb 2013 19:29:12 -0800 Subject: workqueue: rename cpu_workqueue to pool_workqueue workqueue has moved away from global_cwqs to worker_pools and with the scheduled custom worker pools, wforkqueues will be associated with pools which don't have anything to do with CPUs. The workqueue code went through significant amount of changes recently and mass renaming isn't likely to hurt much additionally. Let's replace 'cpu' with 'pool' so that it reflects the current design. * s/struct cpu_workqueue_struct/struct pool_workqueue/ * s/cpu_wq/pool_wq/ * s/cwq/pwq/ This patch is purely cosmetic. Signed-off-by: Tejun Heo --- include/linux/workqueue.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index a3d7556510c3..8afab27cdbc2 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -27,7 +27,7 @@ void delayed_work_timer_fn(unsigned long __data); enum { WORK_STRUCT_PENDING_BIT = 0, /* work item is pending execution */ WORK_STRUCT_DELAYED_BIT = 1, /* work item is delayed */ - WORK_STRUCT_CWQ_BIT = 2, /* data points to cwq */ + WORK_STRUCT_PWQ_BIT = 2, /* data points to pwq */ WORK_STRUCT_LINKED_BIT = 3, /* next work is linked to this one */ #ifdef CONFIG_DEBUG_OBJECTS_WORK WORK_STRUCT_STATIC_BIT = 4, /* static initializer (debugobjects) */ @@ -40,7 +40,7 @@ enum { WORK_STRUCT_PENDING = 1 << WORK_STRUCT_PENDING_BIT, WORK_STRUCT_DELAYED = 1 << WORK_STRUCT_DELAYED_BIT, - WORK_STRUCT_CWQ = 1 << WORK_STRUCT_CWQ_BIT, + WORK_STRUCT_PWQ = 1 << WORK_STRUCT_PWQ_BIT, WORK_STRUCT_LINKED = 1 << WORK_STRUCT_LINKED_BIT, #ifdef CONFIG_DEBUG_OBJECTS_WORK WORK_STRUCT_STATIC = 1 << WORK_STRUCT_STATIC_BIT, @@ -60,14 +60,14 @@ enum { WORK_CPU_END = NR_CPUS + 1, /* - * Reserve 7 bits off of cwq pointer w/ debugobjects turned - * off. This makes cwqs aligned to 256 bytes and allows 15 - * workqueue flush colors. + * Reserve 7 bits off of pwq pointer w/ debugobjects turned off. + * This makes pwqs aligned to 256 bytes and allows 15 workqueue + * flush colors. */ WORK_STRUCT_FLAG_BITS = WORK_STRUCT_COLOR_SHIFT + WORK_STRUCT_COLOR_BITS, - /* data contains off-queue information when !WORK_STRUCT_CWQ */ + /* data contains off-queue information when !WORK_STRUCT_PWQ */ WORK_OFFQ_FLAG_BASE = WORK_STRUCT_FLAG_BITS, WORK_OFFQ_CANCELING = (1 << WORK_OFFQ_FLAG_BASE), -- cgit v1.2.3 From 7d7e499f7333f68b7e7f67d14b9c1480913b4afb Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 31 Jan 2013 12:11:12 +0000 Subject: smpboot: Allow selfparking per cpu threads The stop machine threads are still killed when a cpu goes offline. The reason is that the thread is used to bring the cpu down, so it can't be parked along with the other per cpu threads. Allow a per cpu thread to be excluded from automatic parking, so it can park itself once it's done Add a create callback function as well. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: Rusty Russell Cc: Paul McKenney Cc: Srivatsa S. Bhat Cc: Arjan van de Veen Cc: Paul Turner Cc: Richard Weinberger Cc: Magnus Damm Link: http://lkml.kernel.org/r/20130131120741.553993267@linutronix.de Signed-off-by: Thomas Gleixner --- include/linux/smpboot.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/smpboot.h b/include/linux/smpboot.h index e0106d8581d3..c65dee059913 100644 --- a/include/linux/smpboot.h +++ b/include/linux/smpboot.h @@ -14,6 +14,8 @@ struct smpboot_thread_data; * @thread_should_run: Check whether the thread should run or not. Called with * preemption disabled. * @thread_fn: The associated thread function + * @create: Optional setup function, called when the thread gets + * created (Not called from the thread context) * @setup: Optional setup function, called when the thread gets * operational the first time * @cleanup: Optional cleanup function, called when the thread @@ -22,6 +24,7 @@ struct smpboot_thread_data; * parked (cpu offline) * @unpark: Optional unpark function, called when the thread is * unparked (cpu online) + * @selfparking: Thread is not parked by the park function. * @thread_comm: The base name of the thread */ struct smp_hotplug_thread { @@ -29,10 +32,12 @@ struct smp_hotplug_thread { struct list_head list; int (*thread_should_run)(unsigned int cpu); void (*thread_fn)(unsigned int cpu); + void (*create)(unsigned int cpu); void (*setup)(unsigned int cpu); void (*cleanup)(unsigned int cpu, bool online); void (*park)(unsigned int cpu); void (*unpark)(unsigned int cpu); + bool selfparking; const char *thread_comm; }; -- cgit v1.2.3 From 878ec67b3ac528a2b6d44055f049cdbb9cfda30c Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 14 Feb 2013 17:39:08 +0100 Subject: regmap: mmio: add register clock support Some mmio devices have a dedicated interface clock that needs to be enabled to access their registers. This patch optionally enables a clock before accessing registers in the regmap_bus callbacks. I added (devm_)regmap_init_mmio_clk variants of the init functions that have an added clk_id string parameter. This is passed to clk_get to request the clock from the clk framework. Signed-off-by: Philipp Zabel Signed-off-by: Mark Brown --- include/linux/regmap.h | 47 +++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/regmap.h b/include/linux/regmap.h index b7e95bf942c9..f0480a3297e4 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -285,9 +285,9 @@ struct regmap *regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config); struct regmap *regmap_init_spi(struct spi_device *dev, const struct regmap_config *config); -struct regmap *regmap_init_mmio(struct device *dev, - void __iomem *regs, - const struct regmap_config *config); +struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id, + void __iomem *regs, + const struct regmap_config *config); struct regmap *devm_regmap_init(struct device *dev, const struct regmap_bus *bus, @@ -297,9 +297,44 @@ struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c, const struct regmap_config *config); struct regmap *devm_regmap_init_spi(struct spi_device *dev, const struct regmap_config *config); -struct regmap *devm_regmap_init_mmio(struct device *dev, - void __iomem *regs, - const struct regmap_config *config); +struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id, + void __iomem *regs, + const struct regmap_config *config); + +/** + * regmap_init_mmio(): Initialise register map + * + * @dev: Device that will be interacted with + * @regs: Pointer to memory-mapped IO region + * @config: Configuration for register map + * + * The return value will be an ERR_PTR() on error or a valid pointer to + * a struct regmap. + */ +static inline struct regmap *regmap_init_mmio(struct device *dev, + void __iomem *regs, + const struct regmap_config *config) +{ + return regmap_init_mmio_clk(dev, NULL, regs, config); +} + +/** + * devm_regmap_init_mmio(): Initialise managed register map + * + * @dev: Device that will be interacted with + * @regs: Pointer to memory-mapped IO region + * @config: Configuration for register map + * + * The return value will be an ERR_PTR() on error or a valid pointer + * to a struct regmap. The regmap will be automatically freed by the + * device management code. + */ +static inline struct regmap *devm_regmap_init_mmio(struct device *dev, + void __iomem *regs, + const struct regmap_config *config) +{ + return devm_regmap_init_mmio_clk(dev, NULL, regs, config); +} void regmap_exit(struct regmap *map); int regmap_reinit_cache(struct regmap *map, -- cgit v1.2.3 From 7bf9b9a0f0372d45b581f00173505fb76a9c5d23 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 27 Dec 2012 18:45:41 +0100 Subject: wireless: define operating mode action frame Define the action frame format, the VHT category and its action types and the field format and EID for operating mode notifications. The frame may be used outside of VHT context as well, so don't include "VHT" in the names. Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 7e8a498efe6d..67c1a6c45837 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -714,6 +714,30 @@ enum ieee80211_ht_chanwidth_values { IEEE80211_HT_CHANWIDTH_ANY = 1, }; +/** + * enum ieee80211_opmode_bits - VHT operating mode field bits + * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask + * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width + * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width + * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width + * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width + * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask + * (the NSS value is the value of this field + 1) + * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift + * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU + * using a beamforming steering matrix + */ +enum ieee80211_vht_opmode_bits { + IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK = 3, + IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ = 0, + IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ = 1, + IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ = 2, + IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3, + IEEE80211_OPMODE_NOTIF_RX_NSS_MASK = 0x70, + IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT = 4, + IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF = 0x80, +}; + #define WLAN_SA_QUERY_TR_ID_LEN 2 struct ieee80211_mgmt { @@ -844,6 +868,10 @@ struct ieee80211_mgmt { __le16 capability; u8 variable[0]; } __packed tdls_discover_resp; + struct { + u8 action_code; + u8 operating_mode; + } __packed vht_opmode_notif; } u; } __packed action; } u; @@ -1598,6 +1626,7 @@ enum ieee80211_eid { WLAN_EID_VHT_CAPABILITY = 191, WLAN_EID_VHT_OPERATION = 192, + WLAN_EID_OPMODE_NOTIF = 199, /* 802.11ad */ WLAN_EID_NON_TX_BSSID_CAP = 83, @@ -1652,6 +1681,7 @@ enum ieee80211_category { WLAN_CATEGORY_WMM = 17, WLAN_CATEGORY_FST = 18, WLAN_CATEGORY_UNPROT_DMG = 20, + WLAN_CATEGORY_VHT = 21, WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126, WLAN_CATEGORY_VENDOR_SPECIFIC = 127, }; @@ -1677,6 +1707,13 @@ enum ieee80211_ht_actioncode { WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7, }; +/* VHT action codes */ +enum ieee80211_vht_actioncode { + WLAN_VHT_ACTION_COMPRESSED_BF = 0, + WLAN_VHT_ACTION_GROUPID_MGMT = 1, + WLAN_VHT_ACTION_OPMODE_NOTIF = 2, +}; + /* Self Protected Action codes */ enum ieee80211_self_protected_actioncode { WLAN_SP_RESERVED = 0, -- cgit v1.2.3 From 0af83d3df5863224336a18c24a14fda542b712f5 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 27 Dec 2012 18:55:36 +0100 Subject: mac80211: handle VHT operating mode notification Handle the operating mode notification action frame. When the supported streams or the bandwidth change let the driver and rate control algorithm know. Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 67c1a6c45837..12b5996533ec 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1301,6 +1301,7 @@ struct ieee80211_vht_operation { #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008 +#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK 0x0000000C #define IEEE80211_VHT_CAP_RXLDPC 0x00000010 #define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020 #define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040 -- cgit v1.2.3 From 4a3cb702b05868f67c4ee3da3380461c5b90b4ca Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 12 Feb 2013 16:43:19 +0100 Subject: mac80211: constify IE parsing Make all the parsed IE pointers const, and propagate the change to all the users etc. Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 12b5996533ec..e085fcf52b26 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -2152,7 +2152,7 @@ static inline unsigned long ieee80211_tu_to_usec(unsigned long tu) * @tim_len: length of the TIM IE * @aid: the AID to look for */ -static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim, +static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim, u8 tim_len, u16 aid) { u8 mask; -- cgit v1.2.3 From c6f9d6c3bdeb337809d667ef2a41597229a1ce57 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 11 Feb 2013 14:27:08 +0100 Subject: mac80211: advertise operating mode notification capability Use the new extended capabilities advertising to advertise the fact that operating mode notification is supported. Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index e085fcf52b26..7e24fe0cfbcd 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1776,6 +1776,8 @@ enum ieee80211_tdls_actioncode { #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5) #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6) +#define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(6) + /* TDLS specific payload type in the LLC/SNAP header */ #define WLAN_TDLS_SNAP_RFTYPE 0x2 -- cgit v1.2.3 From ea27c396174d5a4576853cbe7aeabeb9f7cba6e1 Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Tue, 12 Feb 2013 01:10:57 +0800 Subject: pinctrl: generic: rename input schmitt disable Rename PIN_CONFIG_INPUT_SCHMITT_DISABLE to PIN_CONFIG_INPUT_SCHMITT_ENABLE. It's used to make it more generialize. Signed-off-by: Haojian Zhuang Acked-by: Tony Lindgren Signed-off-by: Linus Walleij --- include/linux/pinctrl/pinconf-generic.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 3e7909aa5c03..72474e18f1e0 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -48,7 +48,9 @@ * argument is ignored. * @PIN_CONFIG_DRIVE_STRENGTH: the pin will output the current passed as * argument. The argument is in mA. - * @PIN_CONFIG_INPUT_SCHMITT_DISABLE: disable schmitt-trigger mode on the pin. + * @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin. + * If the argument != 0, schmitt-trigger mode is enabled. If it's 0, + * schmitt-trigger mode is disabled. * @PIN_CONFIG_INPUT_SCHMITT: this will configure an input pin to run in * schmitt-trigger mode. If the schmitt-trigger has adjustable hysteresis, * the threshold value is given on a custom format as argument when @@ -82,7 +84,7 @@ enum pin_config_param { PIN_CONFIG_DRIVE_OPEN_DRAIN, PIN_CONFIG_DRIVE_OPEN_SOURCE, PIN_CONFIG_DRIVE_STRENGTH, - PIN_CONFIG_INPUT_SCHMITT_DISABLE, + PIN_CONFIG_INPUT_SCHMITT_ENABLE, PIN_CONFIG_INPUT_SCHMITT, PIN_CONFIG_INPUT_DEBOUNCE, PIN_CONFIG_POWER_SOURCE, -- cgit v1.2.3 From 14bbd6a565e1bcdc240d44687edb93f721cfdf99 Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Thu, 14 Feb 2013 09:44:49 +0000 Subject: net: Add skb_unclone() helper function. This function will be used in next GRE_GSO patch. This patch does not change any functionality. Signed-off-by: Pravin B Shelar Acked-by: Eric Dumazet --- include/linux/skbuff.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 9da99520ccd5..ca6ee7d93edb 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -804,6 +804,16 @@ static inline int skb_cloned(const struct sk_buff *skb) (atomic_read(&skb_shinfo(skb)->dataref) & SKB_DATAREF_MASK) != 1; } +static inline int skb_unclone(struct sk_buff *skb, gfp_t pri) +{ + might_sleep_if(pri & __GFP_WAIT); + + if (skb_cloned(skb)) + return pskb_expand_head(skb, 0, 0, pri); + + return 0; +} + /** * skb_header_cloned - is the header a clone * @skb: buffer to check -- cgit v1.2.3 From 05e8ef4ab2d8087d360e814d14da20b9f7fb2283 Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Thu, 14 Feb 2013 09:44:55 +0000 Subject: net: factor out skb_mac_gso_segment() from skb_gso_segment() This function will be used in next GRE_GSO patch. This patch does not change any functionality. It only exports skb_mac_gso_segment() function. [ Use skb_reset_mac_len() -DaveM ] Signed-off-by: Pravin B Shelar Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9deb672d999f..920361bc27e7 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2671,6 +2671,8 @@ extern void netdev_upper_dev_unlink(struct net_device *dev, extern int skb_checksum_help(struct sk_buff *skb); extern struct sk_buff *__skb_gso_segment(struct sk_buff *skb, netdev_features_t features, bool tx_path); +extern struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb, + netdev_features_t features); static inline struct sk_buff *skb_gso_segment(struct sk_buff *skb, netdev_features_t features) -- cgit v1.2.3 From 68c331631143f5f039baac99a650e0b9e1ea02b6 Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Thu, 14 Feb 2013 14:02:41 +0000 Subject: v4 GRE: Add TCP segmentation offload for GRE Following patch adds GRE protocol offload handler so that skb_gso_segment() can segment GRE packets. SKB GSO CB is added to keep track of total header length so that skb_segment can push entire header. e.g. in case of GRE, skb_segment need to push inner and outer headers to every segment. New NETIF_F_GRE_GSO feature is added for devices which support HW GRE TSO offload. Currently none of devices support it therefore GRE GSO always fall backs to software GSO. [ Compute pkt_len before ip_local_out() invocation. -DaveM ] Signed-off-by: Pravin B Shelar Signed-off-by: David S. Miller --- include/linux/netdev_features.h | 3 ++- include/linux/skbuff.h | 17 +++++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 5ac32123035a..3dd39340430e 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -41,7 +41,7 @@ enum { NETIF_F_TSO_ECN_BIT, /* ... TCP ECN support */ NETIF_F_TSO6_BIT, /* ... TCPv6 segmentation */ NETIF_F_FSO_BIT, /* ... FCoE segmentation */ - NETIF_F_GSO_RESERVED1, /* ... free (fill GSO_MASK to 8 bits) */ + NETIF_F_GSO_GRE_BIT, /* ... GRE with TSO */ /**/NETIF_F_GSO_LAST, /* [can't be last bit, see GSO_MASK] */ NETIF_F_GSO_RESERVED2 /* ... free (fill GSO_MASK to 8 bits) */ = NETIF_F_GSO_LAST, @@ -102,6 +102,7 @@ enum { #define NETIF_F_VLAN_CHALLENGED __NETIF_F(VLAN_CHALLENGED) #define NETIF_F_RXFCS __NETIF_F(RXFCS) #define NETIF_F_RXALL __NETIF_F(RXALL) +#define NETIF_F_GRE_GSO __NETIF_F(GSO_GRE) /* Features valid for ethtool to change */ /* = all defined minus driver/device-class-related */ diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index ca6ee7d93edb..821c7f45d2a7 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -314,6 +314,8 @@ enum { SKB_GSO_TCPV6 = 1 << 4, SKB_GSO_FCOE = 1 << 5, + + SKB_GSO_GRE = 1 << 6, }; #if BITS_PER_LONG > 32 @@ -2732,6 +2734,21 @@ static inline struct sec_path *skb_sec_path(struct sk_buff *skb) } #endif +/* Keeps track of mac header offset relative to skb->head. + * It is useful for TSO of Tunneling protocol. e.g. GRE. + * For non-tunnel skb it points to skb_mac_header() and for + * tunnel skb it points to outer mac header. */ +struct skb_gso_cb { + int mac_offset; +}; +#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb) + +static inline int skb_tnl_header_len(const struct sk_buff *inner_skb) +{ + return (skb_mac_header(inner_skb) - inner_skb->head) - + SKB_GSO_CB(inner_skb)->mac_offset; +} + static inline bool skb_is_gso(const struct sk_buff *skb) { return skb_shinfo(skb)->gso_size; -- cgit v1.2.3 From 0db3863add5cb249520b31a4ad36f275a30e7ba6 Mon Sep 17 00:00:00 2001 From: Michael Trimarchi Date: Fri, 15 Feb 2013 14:43:38 -0800 Subject: Input: bma150 - make some defines public and fix some comments Make the constants referring to range and bandwidth public so they can be used when initializing the platform data fields in the platform code. Fix also some comments regarding the unit of measurement to use for the range and bandwidth fields, the values are not actually expected to be in G or HZ, the code in bma150.c just uses the BMA150_RANGE_xxx and BMA150_BW_xxx constants like they are with no translation from actual values in G or HZ. Signed-off-by: Michael Trimarchi Signed-off-by: Antonio Ospite Signed-off-by: Dmitry Torokhov --- include/linux/bma150.h | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bma150.h b/include/linux/bma150.h index 7911fda23bb4..97ade7cdc870 100644 --- a/include/linux/bma150.h +++ b/include/linux/bma150.h @@ -22,6 +22,18 @@ #define BMA150_DRIVER "bma150" +#define BMA150_RANGE_2G 0 +#define BMA150_RANGE_4G 1 +#define BMA150_RANGE_8G 2 + +#define BMA150_BW_25HZ 0 +#define BMA150_BW_50HZ 1 +#define BMA150_BW_100HZ 2 +#define BMA150_BW_190HZ 3 +#define BMA150_BW_375HZ 4 +#define BMA150_BW_750HZ 5 +#define BMA150_BW_1500HZ 6 + struct bma150_cfg { bool any_motion_int; /* Set to enable any-motion interrupt */ bool hg_int; /* Set to enable high-G interrupt */ @@ -34,8 +46,8 @@ struct bma150_cfg { unsigned char lg_hyst; /* Low-G hysterisis */ unsigned char lg_dur; /* Low-G duration */ unsigned char lg_thres; /* Low-G threshold */ - unsigned char range; /* BMA0150_RANGE_xxx (in G) */ - unsigned char bandwidth; /* BMA0150_BW_xxx (in Hz) */ + unsigned char range; /* one of BMA0150_RANGE_xxx */ + unsigned char bandwidth; /* one of BMA0150_BW_xxx */ }; struct bma150_platform_data { -- cgit v1.2.3 From 9eee07d39fa606a191ae65d3c0e12771a80e70ca Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 15 Feb 2013 17:04:12 -0800 Subject: Input: tegra-kbc - require CONFIG_OF, remove platform data Tegra only supports, and always enables, device tree. Remove all ifdefs and runtime checks for DT support from the driver. Platform data is therefore no longer required. Delete the header that defines it, and rework the driver to parse the device tree directly into struct tegra_kbc. Signed-off-by: Stephen Warren Signed-off-by: Dmitry Torokhov --- include/linux/input/tegra_kbc.h | 62 ----------------------------------------- 1 file changed, 62 deletions(-) delete mode 100644 include/linux/input/tegra_kbc.h (limited to 'include/linux') diff --git a/include/linux/input/tegra_kbc.h b/include/linux/input/tegra_kbc.h deleted file mode 100644 index a13025612939..000000000000 --- a/include/linux/input/tegra_kbc.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Platform definitions for tegra-kbc keyboard input driver - * - * Copyright (c) 2010-2011, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#ifndef ASMARM_ARCH_TEGRA_KBC_H -#define ASMARM_ARCH_TEGRA_KBC_H - -#include -#include - -#define KBC_MAX_GPIO 24 -#define KBC_MAX_KPENT 8 - -#define KBC_MAX_ROW 16 -#define KBC_MAX_COL 8 -#define KBC_MAX_KEY (KBC_MAX_ROW * KBC_MAX_COL) - -enum tegra_pin_type { - PIN_CFG_IGNORE, - PIN_CFG_COL, - PIN_CFG_ROW, -}; - -struct tegra_kbc_pin_cfg { - enum tegra_pin_type type; - unsigned char num; -}; - -struct tegra_kbc_wake_key { - u8 row:4; - u8 col:4; -}; - -struct tegra_kbc_platform_data { - unsigned int debounce_cnt; - unsigned int repeat_cnt; - - struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO]; - const struct matrix_keymap_data *keymap_data; - - u32 wakeup_key; - bool wakeup; - bool use_fn_map; - bool use_ghost_filter; -}; -#endif -- cgit v1.2.3 From ac6324e7021dfa917ce4f9a836318c3e46fbb84e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= Date: Sun, 10 Feb 2013 18:32:18 +0100 Subject: bq2415x_charger: Add support for offline and 100mA mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * Renamed mode BQ2415X_MODE_NONE to BQ2415X_MODE_OFF because this mode turning chaging completly off * Added new mode BQ2415X_MODE_NONE which enable charging with maximal current limit 100mA (this is minimal safe value for bq2415x chips) Signed-off-by: Pali Rohár Signed-off-by: Anton Vorontsov --- include/linux/power/bq2415x_charger.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/power/bq2415x_charger.h b/include/linux/power/bq2415x_charger.h index 97a1665eaeaf..8dcc0f46fc0a 100644 --- a/include/linux/power/bq2415x_charger.h +++ b/include/linux/power/bq2415x_charger.h @@ -75,7 +75,8 @@ /* Supported modes with maximal current limit */ enum bq2415x_mode { - BQ2415X_MODE_NONE, /* unknown or no charger (100mA) */ + BQ2415X_MODE_OFF, /* offline mode (charger disabled) */ + BQ2415X_MODE_NONE, /* unknown charger (100mA) */ BQ2415X_MODE_HOST_CHARGER, /* usb host/hub charger (500mA) */ BQ2415X_MODE_DEDICATED_CHARGER, /* dedicated charger (unlimited) */ BQ2415X_MODE_BOOST, /* boost mode (charging disabled) */ -- cgit v1.2.3 From 558bd3e8dc7a798c5c845f90cf038b9bbd2df2b8 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Sat, 9 Feb 2013 21:51:27 -0500 Subject: PM idle: remove global declaration of pm_idle pm_idle appears in no generic Linux code, it appears only in architecture-specific code. Thus, pm_idle should not be declared in pm.h. Architectures that use an idle function pointer should delcare one local to their architecture, and/or use cpuidle. Signed-off-by: Len Brown Reviewed-by: Kevin Hilman Tested-by: Kevin Hilman Cc: linux-pm@vger.kernel.org --- include/linux/pm.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pm.h b/include/linux/pm.h index 03d7bb145311..97bcf23e045a 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -31,7 +31,6 @@ /* * Callbacks for platform drivers to implement. */ -extern void (*pm_idle)(void); extern void (*pm_power_off)(void); extern void (*pm_power_off_prepare)(void); -- cgit v1.2.3 From b4278c961aca320839964e23cfc7906ff61af0c2 Mon Sep 17 00:00:00 2001 From: Gao feng Date: Mon, 18 Feb 2013 01:34:55 +0000 Subject: net: proc: remove proc_net_fops_create proc_net_fops_create has been replaced by proc_create, we can remove it now. Signed-off-by: Gao feng Signed-off-by: David S. Miller --- include/linux/proc_fs.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 32676b35d2f5..35ee1891ae25 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -171,8 +171,6 @@ static inline struct proc_dir_entry *create_proc_read_entry(const char *name, return res; } -extern struct proc_dir_entry *proc_net_fops_create(struct net *net, - const char *name, umode_t mode, const struct file_operations *fops); extern void proc_net_remove(struct net *net, const char *name); extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, struct proc_dir_entry *parent); @@ -184,7 +182,6 @@ extern int proc_alloc_inum(unsigned int *pino); extern void proc_free_inum(unsigned int inum); #else -#define proc_net_fops_create(net, name, mode, fops) ({ (void)(mode), NULL; }) static inline void proc_net_remove(struct net *net, const char *name) {} static inline void proc_flush_task(struct task_struct *task) -- cgit v1.2.3 From c2399059a389ba686fa7f45d8913a708914752c4 Mon Sep 17 00:00:00 2001 From: Gao feng Date: Mon, 18 Feb 2013 01:34:57 +0000 Subject: net: proc: remove proc_net_remove proc_net_remove has been replaced by remove_proc_entry. we can remove it now. Signed-off-by: Gao feng Signed-off-by: David S. Miller --- include/linux/proc_fs.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 35ee1891ae25..319f69422667 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -171,7 +171,6 @@ static inline struct proc_dir_entry *create_proc_read_entry(const char *name, return res; } -extern void proc_net_remove(struct net *net, const char *name); extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name, struct proc_dir_entry *parent); @@ -182,8 +181,6 @@ extern int proc_alloc_inum(unsigned int *pino); extern void proc_free_inum(unsigned int inum); #else -static inline void proc_net_remove(struct net *net, const char *name) {} - static inline void proc_flush_task(struct task_struct *task) { } -- cgit v1.2.3 From 900ff8c6321418dafa03c22e215cb9646a2541b9 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Mon, 18 Feb 2013 19:20:33 +0000 Subject: net: move procfs code to net/core/net-procfs.c Similar to net/core/net-sysfs.c, group procfs code to a single unit. Cc: "David S. Miller" Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/linux/netdevice.h | 36 +++++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 920361bc27e7..f111b4f038f3 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2692,9 +2692,9 @@ extern void net_enable_timestamp(void); extern void net_disable_timestamp(void); #ifdef CONFIG_PROC_FS -extern void *dev_seq_start(struct seq_file *seq, loff_t *pos); -extern void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos); -extern void dev_seq_stop(struct seq_file *seq, void *v); +extern int __init dev_proc_init(void); +#else +#define dev_proc_init() 0 #endif extern int netdev_class_create_file(struct class_attribute *class_attr); @@ -2896,4 +2896,34 @@ do { \ }) #endif +/* + * The list of packet types we will receive (as opposed to discard) + * and the routines to invoke. + * + * Why 16. Because with 16 the only overlap we get on a hash of the + * low nibble of the protocol value is RARP/SNAP/X.25. + * + * NOTE: That is no longer true with the addition of VLAN tags. Not + * sure which should go first, but I bet it won't make much + * difference if we are running VLANs. The good news is that + * this protocol won't be in the list unless compiled in, so + * the average user (w/out VLANs) will not be adversely affected. + * --BLG + * + * 0800 IP + * 8100 802.1Q VLAN + * 0001 802.3 + * 0002 AX.25 + * 0004 802.2 + * 8035 RARP + * 0005 SNAP + * 0805 X.25 + * 0806 ARP + * 8137 IPX + * 0009 Localtalk + * 86DD IPv6 + */ +#define PTYPE_HASH_SIZE (16) +#define PTYPE_HASH_MASK (PTYPE_HASH_SIZE - 1) + #endif /* _LINUX_NETDEVICE_H */ -- cgit v1.2.3 From 77852fea6e2442a0e654a9292060489895de18c7 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Sat, 16 Feb 2013 09:46:48 +0100 Subject: sched/rt: Add header to IA64 relied on it through sched.h inclusion: arch/ia64/kernel/init_task.c:38:11: error: 'MAX_PRIO' undeclared here (not in a function) arch/ia64/kernel/init_task.c:38:11: error: 'RR_TIMESLICE' undeclared here (not in a function) Reported-by: kbuild test robot Cc: Clark Williams Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/n/tip-xaan1twswggedMR0airtpjui@git.kernel.org Signed-off-by: Ingo Molnar --- include/linux/init_task.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/init_task.h b/include/linux/init_task.h index cc898b871cef..5cd0f0949927 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -12,6 +12,7 @@ #include #include #include +#include #ifdef CONFIG_SMP # define INIT_PUSHABLE_TASKS(tsk) \ -- cgit v1.2.3 From 4fc1a601f147abe3bfb4d70fe718110ed21953e1 Mon Sep 17 00:00:00 2001 From: Gao feng Date: Tue, 19 Feb 2013 00:43:10 +0000 Subject: net: proc: fix build failed when procfs is not configured commit d4beaa66add8aebf83ab16d2fde4e4de8dac36df "net: proc: change proc_net_fops_create to proc_create" uses proc_create to replace proc_net_fops_create, when CONFIG_PROC isn't configured, some build error will occurs. net/packet/af_packet.c: In function 'packet_net_init': net/packet/af_packet.c:3831:48: error: 'packet_seq_fops' undeclared (first use in this function) net/packet/af_packet.c:3831:48: note: each undeclared identifier is reported only once for each function it appears in There may be other build fails like above,this patch change proc_create from function to macros when CONFIG_PROC is not configured,just like what proc_net_fops_create did before this commit. Reported-by: Fengguang Wu Signed-off-by: Gao feng Signed-off-by: David S. Miller --- include/linux/proc_fs.h | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 319f69422667..d0a1f2ca1c3f 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -187,12 +187,9 @@ static inline void proc_flush_task(struct task_struct *task) static inline struct proc_dir_entry *create_proc_entry(const char *name, umode_t mode, struct proc_dir_entry *parent) { return NULL; } -static inline struct proc_dir_entry *proc_create(const char *name, - umode_t mode, struct proc_dir_entry *parent, - const struct file_operations *proc_fops) -{ - return NULL; -} + +#define proc_create(name, mode, parent, fops) ({ (void)(mode), NULL; }) + static inline struct proc_dir_entry *proc_create_data(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct file_operations *proc_fops, void *data) -- cgit v1.2.3 From cd0615746ba0f6643fb984345ae6ee0b73404ca6 Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Tue, 19 Feb 2013 02:47:05 +0000 Subject: net: fix a build failure when !CONFIG_PROC_FS When !CONFIG_PROC_FS dev_mcast_init() is not defined, actually we can just merge dev_mcast_init() into dev_proc_init(). Reported-by: Gao feng Cc: Gao feng Cc: "David S. Miller" Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- include/linux/netdevice.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f111b4f038f3..b3d00fa4b314 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2646,7 +2646,6 @@ extern void netdev_notify_peers(struct net_device *dev); extern void netdev_features_change(struct net_device *dev); /* Load a device via the kmod */ extern void dev_load(struct net *net, const char *name); -extern void dev_mcast_init(void); extern struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, struct rtnl_link_stats64 *storage); extern void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, -- cgit v1.2.3