From ed70f3a264e9f746eaf17c96ccc4c9b7eda742dc Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 4 Jun 2014 10:11:06 +0100 Subject: ASoC: arizona: Implement TDM support for Arizona devices Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- include/linux/mfd/arizona/core.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h index 5cf8b91ce996..11783b511b9a 100644 --- a/include/linux/mfd/arizona/core.h +++ b/include/linux/mfd/arizona/core.h @@ -110,6 +110,9 @@ struct arizona { int clk32k_ref; struct snd_soc_dapm_context *dapm; + + int tdm_width[ARIZONA_MAX_AIF]; + int tdm_slots[ARIZONA_MAX_AIF]; }; int arizona_clk32k_enable(struct arizona *arizona); -- cgit v1.2.3 From cc9e92431ee9c7fe974266e0e6533a1a68e45539 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Fri, 6 Jun 2014 14:14:05 +0100 Subject: ASoC: wm5102: Add controls to allow shaping of ultrasonic response Add controls to allow custom shaping of the ultrasonic response. This custom shaping can be turned on/off at runtime, although, it should be noted that settings will not affect a currently open audio stream, they will be applied when the next audio stream is started. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- include/linux/mfd/arizona/core.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h index 11783b511b9a..55926517d50b 100644 --- a/include/linux/mfd/arizona/core.h +++ b/include/linux/mfd/arizona/core.h @@ -113,6 +113,9 @@ struct arizona { int tdm_width[ARIZONA_MAX_AIF]; int tdm_slots[ARIZONA_MAX_AIF]; + + uint16_t dac_comp_coeff; + uint8_t dac_comp_enabled; }; int arizona_clk32k_enable(struct arizona *arizona); -- cgit v1.2.3 From c4027faf1dcfc325663464b3f97847358b172c0b Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Wed, 11 Jun 2014 18:14:39 +0800 Subject: ASoC: atmel-ssc: distinguish whether SSC supports fslen ext Add compatible string to distinguish whether SSC supports frame sync length extension. Signed-off-by: Bo Shen Acked-by: Nicolas Ferre Signed-off-by: Mark Brown --- include/linux/atmel-ssc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h index 571a12ebb018..e8dd40873d55 100644 --- a/include/linux/atmel-ssc.h +++ b/include/linux/atmel-ssc.h @@ -7,6 +7,7 @@ struct atmel_ssc_platform_data { int use_dma; + int has_fslen_ext; }; struct ssc_device { -- cgit v1.2.3 From dfaf535665faa4b5aba4b59633f6b724a467c96e Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Wed, 11 Jun 2014 18:14:40 +0800 Subject: ASoC: atmel_ssc_dai: enable fslen extension feature When SSC work as master, it will generate the frame sync signal. On old SoCs, it only supports frame sync length less or equal to 16bits, on newer SoCs, it supports frame sync length extension, which can support frame size larger than 16 bits. So, add this to make it supports playback 24/32 bits audio clips. Signed-off-by: Bo Shen Acked-by: Nicolas Ferre Signed-off-by: Mark Brown --- include/linux/atmel-ssc.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h index e8dd40873d55..7c0f6549898b 100644 --- a/include/linux/atmel-ssc.h +++ b/include/linux/atmel-ssc.h @@ -72,6 +72,12 @@ void ssc_free(struct ssc_device *ssc); #define SSC_RFMR_DATNB_OFFSET 8 #define SSC_RFMR_FSEDGE_SIZE 1 #define SSC_RFMR_FSEDGE_OFFSET 24 +/* + * The FSLEN_EXT exist on at91sam9rl, at91sam9g10, + * at91sam9g20, and at91sam9g45 and newer SoCs + */ +#define SSC_RFMR_FSLEN_EXT_SIZE 4 +#define SSC_RFMR_FSLEN_EXT_OFFSET 28 #define SSC_RFMR_FSLEN_SIZE 4 #define SSC_RFMR_FSLEN_OFFSET 16 #define SSC_RFMR_FSOS_SIZE 4 @@ -110,6 +116,12 @@ void ssc_free(struct ssc_device *ssc); #define SSC_TFMR_FSDEN_OFFSET 23 #define SSC_TFMR_FSEDGE_SIZE 1 #define SSC_TFMR_FSEDGE_OFFSET 24 +/* + * The FSLEN_EXT exist on at91sam9rl, at91sam9g10, + * at91sam9g20, and at91sam9g45 and newer SoCs + */ +#define SSC_TFMR_FSLEN_EXT_SIZE 4 +#define SSC_TFMR_FSLEN_EXT_OFFSET 28 #define SSC_TFMR_FSLEN_SIZE 4 #define SSC_TFMR_FSLEN_OFFSET 16 #define SSC_TFMR_FSOS_SIZE 3 -- cgit v1.2.3 From 94f99c875c109e51decf0d8c25ec2c946db20c56 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:01 +0200 Subject: ASoC: Move name_prefix from CODEC to component Move the name_prefix from the CODEC struct to the component struct. This will eventually allow to specify prefixes for all types of components. It is also necessary to make the DAPM code component type independent (i.e. a DAPM context does not need to know whether it belongs to a CODEC or a platform or something else). Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index ed9e2d7e5fdc..e1cce0042f8a 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -682,6 +682,7 @@ struct snd_soc_component_driver { struct snd_soc_component { const char *name; int id; + const char *name_prefix; struct device *dev; unsigned int active; @@ -710,7 +711,6 @@ struct snd_soc_component { /* SoC Audio Codec device */ struct snd_soc_codec { const char *name; - const char *name_prefix; int id; struct device *dev; const struct snd_soc_codec_driver *driver; -- cgit v1.2.3 From f4333203ec933f9272c90c7add01774ec2cf94d3 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:02 +0200 Subject: ASoC: Move name and id from CODEC/platform to component The component struct already has a name and id field which are initialized to the same values as the same fields in the CODEC and platform structs. So remove them from the CODEC and platform structs and used the ones from the component struct instead. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 4 ---- include/trace/events/asoc.h | 6 +++--- 2 files changed, 3 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index e1cce0042f8a..f64bf9452466 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -710,8 +710,6 @@ struct snd_soc_component { /* SoC Audio Codec device */ struct snd_soc_codec { - const char *name; - int id; struct device *dev; const struct snd_soc_codec_driver *driver; @@ -848,8 +846,6 @@ struct snd_soc_platform_driver { }; struct snd_soc_platform { - const char *name; - int id; struct device *dev; const struct snd_soc_platform_driver *driver; diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h index c75c795a377b..0194a641e4e2 100644 --- a/include/trace/events/asoc.h +++ b/include/trace/events/asoc.h @@ -296,17 +296,17 @@ TRACE_EVENT(snd_soc_cache_sync, TP_ARGS(codec, type, status), TP_STRUCT__entry( - __string( name, codec->name ) + __string( name, codec->component.name) __string( status, status ) __string( type, type ) __field( int, id ) ), TP_fast_assign( - __assign_str(name, codec->name); + __assign_str(name, codec->component.name); __assign_str(status, status); __assign_str(type, type); - __entry->id = codec->id; + __entry->id = codec->component.id; ), TP_printk("codec=%s.%d type=%s status=%s", __get_str(name), -- cgit v1.2.3 From 7df3788410e674423375b88e2d95c46e4015f5f5 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:04 +0200 Subject: ASoC: Auto disconnect pins from all DAPM contexts Currently only pins in CODEC DAPM contexts are automatically marked as non-connected if the card has the fully_routed flag set. This makes sense since widgets which qualify for auto-disconnection are only found in CODEC DAPM contexts. But with componentisation this is going to change, so consider all widgets for auto-disconnection. Also it is probably faster to walk the widgets list only once rather than once for each CODEC. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 6b59471cdf44..8db627cc2fbe 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -431,7 +431,7 @@ int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, const char *pin); int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin); -void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec); +void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card); /* Mostly internal - should not normally be used */ void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm); -- cgit v1.2.3 From 68f831c2724ab72c0088471b2ed1dc99e81948ef Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:05 +0200 Subject: ASoC: Add a set_bias_level() callback to the DAPM context struct Currently the DAPM code directly looks at the CODEC driver struct to get a handle to the set_bias_level() callback. This patch adds a new set_bias_level() callback to the DAPM context struct. The DAPM code will use this new callback instead of the CODEC callback. For CODECs the new callback is set up to call the CODEC specific set_bias_level callback(). Not looking directly at the CODEC driver struct will allow non CODEC DAPM contexts to implement a set_bias_level() callback. This is also similar to how the seq_notifier() and stream_event() callbacks are currently handled. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 8db627cc2fbe..3a5c4f969c04 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -601,6 +601,8 @@ struct snd_soc_dapm_context { struct list_head list; int (*stream_event)(struct snd_soc_dapm_context *dapm, int event); + int (*set_bias_level)(struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level); #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dapm; -- cgit v1.2.3 From ce0fc93ae56e2ba50ff8c220d69e4e860e889320 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:06 +0200 Subject: ASoC: Add DAPM support at the component level This patch adds full DAPM support at the component level. Previously there was only full DAPM support for CODECs and partial DAPM support (e.g. no Mixers nor MUXs) for platforms. Having DAPM support at the component level will allow all types of components to use DAPM and also help in consolidating the DAPM support between CODECs and platforms. Since the DAPM context is directly embedded into the snd_soc_codec and snd_soc_platform struct and the 'dapm' field is directly referenced in a lot of drivers moving the field just right now is not possible without causing code churn. The approach this patch takes is to add two new fields to the component struct. One field which is the pointer to the actual DAPM context used by the component and one DAPM context that will be used as the default if no other context was specified. For CODECs and platforms the pointer is initialized to point to the CODEC or platform DAPM context. All generic code when referencing a component's DAPM struct will go via the pointer. This will make it possible to eventually seamlessly move the DAPM context from snd_soc_codec and snd_soc_platform struct over once all direct references have been eliminated. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 2 ++ include/sound/soc.h | 30 ++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) (limited to 'include') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 3a5c4f969c04..e292683ee694 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -441,6 +441,8 @@ int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget_list **list); struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol); +struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm( + struct snd_kcontrol *kcontrol); /* dapm widget types */ enum snd_soc_dapm_type { diff --git a/include/sound/soc.h b/include/sound/soc.h index f64bf9452466..a21dfecba56b 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -706,6 +706,10 @@ struct snd_soc_component { int val_bytes; struct mutex io_mutex; + + /* Don't use these, use snd_soc_component_get_dapm() */ + struct snd_soc_dapm_context dapm; + struct snd_soc_dapm_context *dapm_ptr; }; /* SoC Audio Codec device */ @@ -1160,6 +1164,21 @@ static inline struct snd_soc_platform *snd_soc_component_to_platform( return container_of(component, struct snd_soc_platform, component); } +/** + * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is + * embedded in + * @dapm: The DAPM context to cast to the component + * + * This function must only be used on DAPM contexts that are known to be part of + * a component (e.g. in a component driver). Otherwise the behavior is + * undefined. + */ +static inline struct snd_soc_component *snd_soc_dapm_to_component( + struct snd_soc_dapm_context *dapm) +{ + return container_of(dapm, struct snd_soc_component, dapm); +} + /** * snd_soc_dapm_to_codec() - Casts a DAPM context to the CODEC it is embedded in * @dapm: The DAPM context to cast to the CODEC @@ -1187,6 +1206,17 @@ static inline struct snd_soc_platform *snd_soc_dapm_to_platform( return container_of(dapm, struct snd_soc_platform, dapm); } +/** + * snd_soc_component_get_dapm() - Returns the DAPM context associated with a + * component + * @component: The component for which to get the DAPM context + */ +static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm( + struct snd_soc_component *component) +{ + return component->dapm_ptr; +} + /* codec IO */ unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, -- cgit v1.2.3 From bc9af9fa9b89cb74eed020066d882abf238fad69 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:07 +0200 Subject: ASoC: Use component DAPM context for platforms The snd_soc_platform dapm field is not accessed outside of the ASoC core. Switch it over to using the snd_soc_component DAPM context. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index a21dfecba56b..84ebc079c92f 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -862,8 +862,6 @@ struct snd_soc_platform { struct snd_soc_component component; - struct snd_soc_dapm_context dapm; - #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_platform_root; #endif @@ -1203,7 +1201,7 @@ static inline struct snd_soc_codec *snd_soc_dapm_to_codec( static inline struct snd_soc_platform *snd_soc_dapm_to_platform( struct snd_soc_dapm_context *dapm) { - return container_of(dapm, struct snd_soc_platform, dapm); + return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm)); } /** -- cgit v1.2.3 From 14e8bdebfbc1d5c8804b3520233b2d4e516056bc Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:08 +0200 Subject: ASoC: Add component level stream_event() and seq_notifier() support This patch adds stream_event() and seq_notifier() callbacks similar to those found in the snd_soc_codec_driver and snd_soc_platform driver struct to the snd_soc_component_driver struct. This is meant to unify the handling of these callbacks across different types of components and will eventually allow their removal from the CODEC and platfrom driver structs. The new callbacks are slightly different from the old ones in that they take a snd_soc_component as a parameter rather than a snd_soc_dapm_context. This was done since otherwise casting from the DAPM context to the component would typically be the first thing to do in the callback. And the interface becomes slightly cleaner by passing a snd_soc_component to all callbacks in the snd_soc_component_driver struct. The patch also already removes the stream_event() callback from the snd_soc_codec_driver and snd_soc_platform_driver structs as it is currently unused. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index 84ebc079c92f..9a5b4f6fe847 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -677,6 +677,9 @@ struct snd_soc_component_driver { int (*of_xlate_dai_name)(struct snd_soc_component *component, struct of_phandle_args *args, const char **dai_name); + void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type, + int subseq); + int (*stream_event)(struct snd_soc_component *, int event); }; struct snd_soc_component { @@ -792,9 +795,6 @@ struct snd_soc_codec_driver { void (*seq_notifier)(struct snd_soc_dapm_context *, enum snd_soc_dapm_type, int); - /* codec stream completion event */ - int (*stream_event)(struct snd_soc_dapm_context *dapm, int event); - bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */ /* probe ordering - for components with runtime dependencies */ @@ -836,9 +836,6 @@ struct snd_soc_platform_driver { /* platform stream compress ops */ const struct snd_compr_ops *compr_ops; - /* platform stream completion event */ - int (*stream_event)(struct snd_soc_dapm_context *dapm, int event); - /* probe ordering - for components with runtime dependencies */ int probe_order; int remove_order; -- cgit v1.2.3 From 9420d97b3f8672478696ae9c3e33051243e1f4a0 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:10 +0200 Subject: ASoC: dapm: Remove DAI DAPM context The DAI DAPM context was added in commit be09ad90 ("ASoC: core: Add platform DAI widget mapping") and the only user was removed again in commit ae10e7e8f ("ASoC: core: Only add platform DAI widgets once."). Now that we have a per component DAPM context it is unlikely that we'll need the DAI DAPM context again. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dai.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 688f2ba8009f..031be2ab75d0 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -257,7 +257,6 @@ struct snd_soc_dai { struct snd_soc_dapm_widget *playback_widget; struct snd_soc_dapm_widget *capture_widget; - struct snd_soc_dapm_context dapm; /* DAI DMA data */ void *playback_dma_data; -- cgit v1.2.3 From 88a8fe3df65fa0229b04f1c03411062230091cdd Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 16 Jun 2014 18:13:11 +0200 Subject: ASoC: dapm: Remove platform field from widget and dapm context struct The platform field in the snd_soc_dapm_widget and snd_soc_dapm_context structs is now unused can be removed. New code that wants to get the platform for a widget or dapm context should use snd_soc_dapm_to_platform(w->dapm) or snd_soc_dapm_to_platform(dapm). Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index e292683ee694..aac04ff84eea 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -526,7 +526,6 @@ struct snd_soc_dapm_widget { const char *name; /* widget name */ const char *sname; /* stream name */ struct snd_soc_codec *codec; - struct snd_soc_platform *platform; struct list_head list; struct snd_soc_dapm_context *dapm; @@ -595,7 +594,6 @@ struct snd_soc_dapm_context { struct device *dev; /* from parent - for debug */ struct snd_soc_component *component; /* parent component */ struct snd_soc_codec *codec; /* parent codec */ - struct snd_soc_platform *platform; /* parent platform */ struct snd_soc_card *card; /* parent card */ /* used during DAPM updates */ -- cgit v1.2.3 From 546a9d8519ed137b2804a3f5a3659003039dd49c Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 19 Jun 2014 14:57:10 -0700 Subject: rcu: Export debug_init_rcu_head() and and debug_init_rcu_head() Currently, call_rcu() relies on implicit allocation and initialization for the debug-objects handling of RCU callbacks. If you hammer the kernel hard enough with Sasha's modified version of trinity, you can end up with the sl*b allocators recursing into themselves via this implicit call_rcu() allocation. This commit therefore exports the debug_init_rcu_head() and debug_rcu_head_free() functions, which permits the allocators to allocated and pre-initialize the debug-objects information, so that there no longer any need for call_rcu() to do that initialization, which in turn prevents the recursion into the memory allocators. Reported-by: Sasha Levin Suggested-by: Thomas Gleixner Signed-off-by: Paul E. McKenney Acked-by: Thomas Gleixner Looks-good-to: Christoph Lameter --- include/linux/rcupdate.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 5a75d19aa661..13bbfbde41b9 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -358,9 +358,19 @@ void wait_rcu_gp(call_rcu_func_t crf); * initialization. */ #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD +void init_rcu_head(struct rcu_head *head); +void destroy_rcu_head(struct rcu_head *head); void init_rcu_head_on_stack(struct rcu_head *head); void destroy_rcu_head_on_stack(struct rcu_head *head); #else /* !CONFIG_DEBUG_OBJECTS_RCU_HEAD */ +static inline void init_rcu_head(struct rcu_head *head) +{ +} + +static inline void destroy_rcu_head(struct rcu_head *head) +{ +} + static inline void init_rcu_head_on_stack(struct rcu_head *head) { } -- cgit v1.2.3 From 4a81e8328d3791a4f99bf5b436d050f6dc5ffea3 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 20 Jun 2014 16:49:01 -0700 Subject: rcu: Reduce overhead of cond_resched() checks for RCU Commit ac1bea85781e (Make cond_resched() report RCU quiescent states) fixed a problem where a CPU looping in the kernel with but one runnable task would give RCU CPU stall warnings, even if the in-kernel loop contained cond_resched() calls. Unfortunately, in so doing, it introduced performance regressions in Anton Blanchard's will-it-scale "open1" test. The problem appears to be not so much the increased cond_resched() path length as an increase in the rate at which grace periods complete, which increased per-update grace-period overhead. This commit takes a different approach to fixing this bug, mainly by moving the RCU-visible quiescent state from cond_resched() to rcu_note_context_switch(), and by further reducing the check to a simple non-zero test of a single per-CPU variable. However, this approach requires that the force-quiescent-state processing send resched IPIs to the offending CPUs. These will be sent only once the grace period has reached an age specified by the boot/sysfs parameter rcutree.jiffies_till_sched_qs, or once the grace period reaches an age halfway to the point at which RCU CPU stall warnings will be emitted, whichever comes first. Reported-by: Dave Hansen Signed-off-by: Paul E. McKenney Cc: Andi Kleen Cc: Christoph Lameter Cc: Mike Galbraith Cc: Eric Dumazet Reviewed-by: Josh Triplett [ paulmck: Made rcu_momentary_dyntick_idle() as suggested by the ktest build robot. Also fixed smp_mb() comment as noted by Oleg Nesterov. ] Merge with e552592e (Reduce overhead of cond_resched() checks for RCU) Signed-off-by: Paul E. McKenney --- include/linux/rcupdate.h | 36 ------------------------------------ 1 file changed, 36 deletions(-) (limited to 'include') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 13bbfbde41b9..6a94cc8b1ca0 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -44,7 +44,6 @@ #include #include #include -#include #include extern int rcu_expedited; /* for sysctl */ @@ -299,41 +298,6 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev, bool __rcu_is_watching(void); #endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP) */ -/* - * Hooks for cond_resched() and friends to avoid RCU CPU stall warnings. - */ - -#define RCU_COND_RESCHED_LIM 256 /* ms vs. 100s of ms. */ -DECLARE_PER_CPU(int, rcu_cond_resched_count); -void rcu_resched(void); - -/* - * Is it time to report RCU quiescent states? - * - * Note unsynchronized access to rcu_cond_resched_count. Yes, we might - * increment some random CPU's count, and possibly also load the result from - * yet another CPU's count. We might even clobber some other CPU's attempt - * to zero its counter. This is all OK because the goal is not precision, - * but rather reasonable amortization of rcu_note_context_switch() overhead - * and extremely high probability of avoiding RCU CPU stall warnings. - * Note that this function has to be preempted in just the wrong place, - * many thousands of times in a row, for anything bad to happen. - */ -static inline bool rcu_should_resched(void) -{ - return raw_cpu_inc_return(rcu_cond_resched_count) >= - RCU_COND_RESCHED_LIM; -} - -/* - * Report quiscent states to RCU if it is time to do so. - */ -static inline void rcu_cond_resched(void) -{ - if (unlikely(rcu_should_resched())) - rcu_resched(); -} - /* * Infrastructure to implement the synchronize_() primitives in * TREE_RCU and rcu_barrier_() primitives in TINY_RCU. -- cgit v1.2.3 From d9288d0ba12de1b5efb830b9128e4cc6877318fc Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 22 Jun 2014 17:56:23 -0700 Subject: ASoC: rsnd: SSI + DMA can select BUSIF Sound data needs to be sent to R-Car sound SSI when playback. But, there are 2 interfaces for it. 1st is SSITDR/SSIRDR which are mapped on SSI. 2nd is SSIn_BUSIF which are mapped on SSIU. 2nd SSIn_BUSIF is used when DMA transfer, and it is always used if sound data came from via SRC. But, we can use it when SSI+DMA case too. (Current driver is assuming 1st SSITDR/SSIRDR for it) 2nd SSIn_BUSIF can be used as FIFO. This is very helpful/useful for SSI+DMA. But DMA address / DMA ID are not same between 1st/2nd cases. This patch care about these settings. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- include/sound/rcar_snd.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/sound/rcar_snd.h b/include/sound/rcar_snd.h index f4a706f82cb7..d76412b84b48 100644 --- a/include/sound/rcar_snd.h +++ b/include/sound/rcar_snd.h @@ -34,6 +34,7 @@ * B : SSI direction */ #define RSND_SSI_CLK_PIN_SHARE (1 << 31) +#define RSND_SSI_NO_BUSIF (1 << 30) /* SSI+DMA without BUSIF */ #define RSND_SSI(_dma_id, _pio_irq, _flags) \ { .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags } -- cgit v1.2.3 From 44ff0254b89079a8a95e652635e760d93196ac1f Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Thu, 5 Jun 2014 13:35:14 -0700 Subject: clk: exynos5420: Remove aclk66_peric from the clock tree description The "aclk66_peric" clock is a gate clock with a whole bunch of gates underneath it. This big gate isn't very useful to include in our clock tree. If any of the children need to be turned on then the big gate will need to be on anyway. ...and there are plenty of other "big gates" that aren't described in our clock tree, some of which shut off collections of clocks that have no relationship in the hierarchy so are hard to model. "aclk66_peric" is causing earlyprintk problems since it gets disabled as part of the boot process, so let's just remove it. Strangely (and for no good reason) this clock is exported as part of the common clock bindings. Remove it since there are no in-kernel device trees using it and no reason anyone out of tree should refer to it either. Signed-off-by: Doug Anderson Signed-off-by: Tomasz Figa --- include/dt-bindings/clock/exynos5420.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/dt-bindings/clock/exynos5420.h b/include/dt-bindings/clock/exynos5420.h index 97dcb89d37d3..14e1c8f9640c 100644 --- a/include/dt-bindings/clock/exynos5420.h +++ b/include/dt-bindings/clock/exynos5420.h @@ -63,7 +63,6 @@ #define CLK_SCLK_MPHY_IXTAL24 161 /* gate clocks */ -#define CLK_ACLK66_PERIC 256 #define CLK_UART0 257 #define CLK_UART1 258 #define CLK_UART2 259 -- cgit v1.2.3 From 4e26445faad366d67d7723622bf6a60a6f0f5993 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 30 Jun 2014 11:50:28 +0800 Subject: kernfs: introduce kernfs_pin_sb() kernfs_pin_sb() tries to get a refcnt of the superblock. This will be used by cgroupfs. v2: - make kernfs_pin_sb() return the superblock. - drop kernfs_drop_sb(). tj: Updated the comment a bit. [ This is a prerequisite for a bugfix. ] Cc: # 3.15 Acked-by: Greg Kroah-Hartman Signed-off-by: Li Zefan Signed-off-by: Tejun Heo --- include/linux/kernfs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 17aa1cce6f8e..20f493564917 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -304,6 +304,7 @@ struct dentry *kernfs_mount_ns(struct file_system_type *fs_type, int flags, struct kernfs_root *root, unsigned long magic, bool *new_sb_created, const void *ns); void kernfs_kill_sb(struct super_block *sb); +struct super_block *kernfs_pin_sb(struct kernfs_root *root, const void *ns); void kernfs_init(void); -- cgit v1.2.3 From 7f502361531e9eecb396cf99bdc9e9a59f7ebd7f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 30 Jun 2014 01:26:23 -0700 Subject: ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix We have two different ways to handle changes to sk->sk_dst First way (used by TCP) assumes socket lock is owned by caller, and use no extra lock : __sk_dst_set() & __sk_dst_reset() Another way (used by UDP) uses sk_dst_lock because socket lock is not always taken. Note that sk_dst_lock is not softirq safe. These ways are not inter changeable for a given socket type. ipv4_sk_update_pmtu(), added in linux-3.8, added a race, as it used the socket lock as synchronization, but users might be UDP sockets. Instead of converting sk_dst_lock to a softirq safe version, use xchg() as we did for sk_rx_dst in commit e47eb5dfb296b ("udp: ipv4: do not use sk_dst_lock from softirq context") In a follow up patch, we probably can remove sk_dst_lock, as it is only used in IPv6. Signed-off-by: Eric Dumazet Cc: Steffen Klassert Fixes: 9cb3a50c5f63e ("ipv4: Invalidate the socket cached route on pmtu events if possible") Signed-off-by: David S. Miller --- include/net/sock.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/net/sock.h b/include/net/sock.h index 173cae485de1..c556fd9b05ac 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1768,9 +1768,11 @@ __sk_dst_set(struct sock *sk, struct dst_entry *dst) static inline void sk_dst_set(struct sock *sk, struct dst_entry *dst) { - spin_lock(&sk->sk_dst_lock); - __sk_dst_set(sk, dst); - spin_unlock(&sk->sk_dst_lock); + struct dst_entry *old_dst; + + sk_tx_queue_clear(sk); + old_dst = xchg(&sk->sk_dst_cache, dst); + dst_release(old_dst); } static inline void @@ -1782,9 +1784,7 @@ __sk_dst_reset(struct sock *sk) static inline void sk_dst_reset(struct sock *sk) { - spin_lock(&sk->sk_dst_lock); - __sk_dst_reset(sk); - spin_unlock(&sk->sk_dst_lock); + sk_dst_set(sk, NULL); } struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie); -- cgit v1.2.3 From 330d282216d6e4d845a21b72572dc4df4122e8fa Mon Sep 17 00:00:00 2001 From: Zhengyu He Date: Tue, 1 Jul 2014 12:11:47 -0700 Subject: core: fix typo in percpu read_mostly section This fixes a typo that named the read_mostly section of percpu as readmostly. It works fine with SMP because the linker script specifies .data..percpu..readmostly. However, UP kernel builds don't have percpu sections defined and the non-percpu version of the section is called data..read_mostly, so .data..readmostly will float around and may break things unexpectedly. Looking at the original change that introduced data..percpu..readmostly (commit c957ef2c59e952803766ddc22e89981ab534606f), it looks like this was the original intention. Tested: Built UP kernel and confirmed the sections got merged. - Before the patch: $ objdump -h vmlinux.o | grep '\.data\.\.read.*mostly' 38 .data..read_mostly 00004418 0000000000000000 0000000000000000 00431ac0 2**6 50 .data..readmostly 00000014 0000000000000000 0000000000000000 00444000 2**3 - After the patch: $ objdump -h vmlinux.o | grep '\.data\.\.read.*mostly' 38 .data..read_mostly 00004438 0000000000000000 0000000000000000 00431ac0 2**6 Signed-off-by: Zhengyu He Signed-off-by: Filipe Brandenburger Signed-off-by: Tejun Heo --- include/asm-generic/vmlinux.lds.h | 2 +- include/linux/percpu-defs.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 471ba48c7ae4..c1c0b0cf39b4 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -693,7 +693,7 @@ . = ALIGN(PAGE_SIZE); \ *(.data..percpu..page_aligned) \ . = ALIGN(cacheline); \ - *(.data..percpu..readmostly) \ + *(.data..percpu..read_mostly) \ . = ALIGN(cacheline); \ *(.data..percpu) \ *(.data..percpu..shared_aligned) \ diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h index a5fc7d01aad6..dec01d6c3f80 100644 --- a/include/linux/percpu-defs.h +++ b/include/linux/percpu-defs.h @@ -146,10 +146,10 @@ * Declaration/definition used for per-CPU variables that must be read mostly. */ #define DECLARE_PER_CPU_READ_MOSTLY(type, name) \ - DECLARE_PER_CPU_SECTION(type, name, "..readmostly") + DECLARE_PER_CPU_SECTION(type, name, "..read_mostly") #define DEFINE_PER_CPU_READ_MOSTLY(type, name) \ - DEFINE_PER_CPU_SECTION(type, name, "..readmostly") + DEFINE_PER_CPU_SECTION(type, name, "..read_mostly") /* * Intermodule exports for per-CPU variables. sparse forgets about -- cgit v1.2.3 From b6220ad66bcd4a50737eb3c08e9466aa44f3bc98 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Tue, 24 Jun 2014 18:05:29 -0700 Subject: sched: Fix compiler warnings Commit 143e1e28cb (sched: Rework sched_domain topology definition) introduced a number of functions with a return value of 'const int'. gcc doesn't know what to do with that and, if the kernel is compiled with W=1, complains with the following warnings whenever sched.h is included. include/linux/sched.h:875:25: warning: type qualifiers ignored on function return type include/linux/sched.h:882:25: warning: type qualifiers ignored on function return type include/linux/sched.h:889:25: warning: type qualifiers ignored on function return type include/linux/sched.h:1002:21: warning: type qualifiers ignored on function return type Commits fb2aa855 (sched, ARM: Create a dedicated scheduler topology table) and 607b45e9a (sched, powerpc: Create a dedicated topology table) introduce the same warning in the arm and powerpc code. Drop 'const' from the function declarations to fix the problem. The fix for all three patches has to be applied together to avoid compilation failures for the affected architectures. Acked-by: Vincent Guittot Acked-by: Benjamin Herrenschmidt Signed-off-by: Guenter Roeck Cc: Russell King Cc: Paul Mackerras Cc: Dietmar Eggemann Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1403658329-13196-1-git-send-email-linux@roeck-us.net Signed-off-by: Ingo Molnar --- include/linux/sched.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index 306f4f0c987a..0376b054a0d0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -872,21 +872,21 @@ enum cpu_idle_type { #define SD_NUMA 0x4000 /* cross-node balancing */ #ifdef CONFIG_SCHED_SMT -static inline const int cpu_smt_flags(void) +static inline int cpu_smt_flags(void) { return SD_SHARE_CPUCAPACITY | SD_SHARE_PKG_RESOURCES; } #endif #ifdef CONFIG_SCHED_MC -static inline const int cpu_core_flags(void) +static inline int cpu_core_flags(void) { return SD_SHARE_PKG_RESOURCES; } #endif #ifdef CONFIG_NUMA -static inline const int cpu_numa_flags(void) +static inline int cpu_numa_flags(void) { return SD_NUMA; } @@ -999,7 +999,7 @@ void free_sched_domains(cpumask_var_t doms[], unsigned int ndoms); bool cpus_share_cache(int this_cpu, int that_cpu); typedef const struct cpumask *(*sched_domain_mask_f)(int cpu); -typedef const int (*sched_domain_flags_f)(void); +typedef int (*sched_domain_flags_f)(void); #define SDTL_OVERLAP 0x01 -- cgit v1.2.3 From d9daa24720891a88bedb93928f57767da96e5c80 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sat, 28 Jun 2014 01:23:35 +0200 Subject: net: fix circular dependency in of_mdio code Commit 86f6cf4127 (net: of_mdio: add of_mdiobus_link_phydev()) introduced a circular dependency between libphy and of_mdio. depmod: ERROR: /kernel/drivers/net/phy/libphy.ko in dependency cycle! depmod: ERROR: /kernel/drivers/of/of_mdio.ko in dependency cycle! The problem is that of_mdio.c references &mdio_bus_type and libphy now references of_mdiobus_link_phydev. Fix this by not exporting of_mdiobus_link_phydev() from of_mdio.ko. Make it a static function in mdio_bus.c instead. Signed-off-by: Daniel Mack Reported-by: Jeff Mahoney Fixes: 86f6cf4127 (net: of_mdio: add of_mdiobus_link_phydev()) Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- include/linux/of_mdio.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'include') diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h index a70c9493d55a..d449018d0726 100644 --- a/include/linux/of_mdio.h +++ b/include/linux/of_mdio.h @@ -25,9 +25,6 @@ struct phy_device *of_phy_attach(struct net_device *dev, extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np); -extern void of_mdiobus_link_phydev(struct mii_bus *mdio, - struct phy_device *phydev); - #else /* CONFIG_OF */ static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) { @@ -63,11 +60,6 @@ static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np) { return NULL; } - -static inline void of_mdiobus_link_phydev(struct mii_bus *mdio, - struct phy_device *phydev) -{ -} #endif /* CONFIG_OF */ #if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY) -- cgit v1.2.3 From 5e8351de740d9eff26cc146a6591a4e7517496b0 Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Mon, 30 Jun 2014 20:31:13 +0800 Subject: ASoC: add RT5670 CODEC driver This patch adds a minimum support of Realtek ALC5670 codec. Signed-off-by: Bard Liao Signed-off-by: Mark Brown --- include/sound/rt5670.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 include/sound/rt5670.h (limited to 'include') diff --git a/include/sound/rt5670.h b/include/sound/rt5670.h new file mode 100644 index 000000000000..bd311197a3b5 --- /dev/null +++ b/include/sound/rt5670.h @@ -0,0 +1,27 @@ +/* + * linux/sound/rt5670.h -- Platform data for RT5670 + * + * Copyright 2014 Realtek Microelectronics + * + * 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 __LINUX_SND_RT5670_H +#define __LINUX_SND_RT5670_H + +struct rt5670_platform_data { + int jd_mode; + bool in2_diff; + + bool dmic_en; + unsigned int dmic1_data_pin; + /* 0 = GPIO6; 1 = IN2P; 3 = GPIO7*/ + unsigned int dmic2_data_pin; + /* 0 = GPIO8; 1 = IN3N; */ + unsigned int dmic3_data_pin; + /* 0 = GPIO9; 1 = GPIO10; 2 = GPIO5*/ +}; + +#endif -- cgit v1.2.3 From 5925a0555bdaf0b396a84318cbc21ba085f6c0d3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 2 Jul 2014 02:39:38 -0700 Subject: net: fix sparse warning in sk_dst_set() sk_dst_cache has __rcu annotation, so we need a cast to avoid following sparse error : include/net/sock.h:1774:19: warning: incorrect type in initializer (different address spaces) include/net/sock.h:1774:19: expected struct dst_entry [noderef] *__ret include/net/sock.h:1774:19: got struct dst_entry *dst Signed-off-by: Eric Dumazet Reported-by: kbuild test robot Fixes: 7f502361531e ("ipv4: irq safe sk_dst_[re]set() and ipv4_sk_update_pmtu() fix") Signed-off-by: David S. Miller --- include/net/sock.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/sock.h b/include/net/sock.h index c556fd9b05ac..156350745700 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1771,7 +1771,7 @@ sk_dst_set(struct sock *sk, struct dst_entry *dst) struct dst_entry *old_dst; sk_tx_queue_clear(sk); - old_dst = xchg(&sk->sk_dst_cache, dst); + old_dst = xchg((__force struct dst_entry **)&sk->sk_dst_cache, dst); dst_release(old_dst); } -- cgit v1.2.3 From 35f6f45368632f21bd27559c44dbb1cab51d8947 Mon Sep 17 00:00:00 2001 From: Amir Vadai Date: Sun, 29 Jun 2014 11:54:55 +0300 Subject: net/mlx4_en: Don't use irq_affinity_notifier to track changes in IRQ affinity map IRQ affinity notifier can only have a single notifier - cpu_rmap notifier. Can't use it to track changes in IRQ affinity map. Detect IRQ affinity changes by comparing CPU to current IRQ affinity map during NAPI poll thread. CC: Thomas Gleixner CC: Ben Hutchings Fixes: 2eacc23 ("net/mlx4_core: Enforce irq affinity changes immediatly") Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- include/linux/mlx4/device.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index b12f4bbd064c..35b51e7af886 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -578,8 +578,6 @@ struct mlx4_cq { u32 cons_index; u16 irq; - bool irq_affinity_change; - __be32 *set_ci_db; __be32 *arm_db; int arm_sn; @@ -1167,6 +1165,8 @@ int mlx4_assign_eq(struct mlx4_dev *dev, char *name, struct cpu_rmap *rmap, int *vector); void mlx4_release_eq(struct mlx4_dev *dev, int vec); +int mlx4_eq_get_irq(struct mlx4_dev *dev, int vec); + int mlx4_get_phys_port_id(struct mlx4_dev *dev); int mlx4_wol_read(struct mlx4_dev *dev, u64 *config, int port); int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port); -- cgit v1.2.3 From 48bc03433cfdcac7a3bbb233d5c9f95297a0f5ab Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Sun, 29 Jun 2014 13:10:18 +0200 Subject: ieee802154: reassembly: fix possible buffer overflow The max_dsize attribute in ctl_table for lowpan_frags_ns_ctl_table is configured with integer accessing methods. This patch change the max_dsize attribute to int to avoid a possible buffer overflow. Signed-off-by: Alexander Aring Signed-off-by: David S. Miller --- include/net/netns/ieee802154_6lowpan.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/netns/ieee802154_6lowpan.h b/include/net/netns/ieee802154_6lowpan.h index 079030c853d8..e2070960bac0 100644 --- a/include/net/netns/ieee802154_6lowpan.h +++ b/include/net/netns/ieee802154_6lowpan.h @@ -16,7 +16,7 @@ struct netns_sysctl_lowpan { struct netns_ieee802154_lowpan { struct netns_sysctl_lowpan sysctl; struct netns_frags frags; - u16 max_dsize; + int max_dsize; }; #endif -- cgit v1.2.3 From 07cf7cbadb4d97a78be61119a406de8fe446467e Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Fri, 20 Jun 2014 14:41:13 +0800 Subject: ASoC: add RT286 CODEC driver This patch adds Realtek ALC286 codec driver. ALC286 is a dual mode codec, which can run as HD-A or I2S mode. It is controlled by HD-A verb commands via I2C protocol. The following is the I/O difference between ALC286 and general I2S codecs. 1. A HD-A verb command contains three parts, NID, VID, and PID. And an I2S command contains only two parts: address and data. 2. Not only the register address is written, but the read command also includes the entire write command. 3. rt286 uses different registers for read and write the same bits. We map verb command to regmap structure. However, we read most registers from cache to prevent the asymmetry read/write issue in rt286. Signed-off-by: Bard Liao Signed-off-by: Gustaw Lewandowski Signed-off-by: Mark Brown --- include/sound/rt286.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 include/sound/rt286.h (limited to 'include') diff --git a/include/sound/rt286.h b/include/sound/rt286.h new file mode 100644 index 000000000000..eb773d1485f2 --- /dev/null +++ b/include/sound/rt286.h @@ -0,0 +1,19 @@ +/* + * linux/sound/rt286.h -- Platform data for RT286 + * + * Copyright 2013 Realtek Microelectronics + * + * 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 __LINUX_SND_RT286_H +#define __LINUX_SND_RT286_H + +struct rt286_platform_data { + bool cbj_en; /*combo jack enable*/ + bool gpio2_en; /*GPIO2 enable*/ +}; + +#endif -- cgit v1.2.3 From 93c6ee94c140eefb6f9d5b6e2ad1acc2e138e44c Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 3 Jul 2014 07:51:52 +0300 Subject: dma: Support for 3 bytes word size Add DMA_SLAVE_BUSWIDTH_3_BYTES to dma_slave_buswidth for engines and users to select 3 bytes as bus width. For example eDMA can be configured to use 3bytes mode and in audio we have formats stored on 3bytes in memory (_XXX_3LE) where this new bus width can be used. Signed-off-by: Peter Ujfalusi Acked-by: Vinod Koul Acked-by: Takashi Iwai Signed-off-by: Mark Brown --- include/linux/dmaengine.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index d2c5cc7c583c..3d1c2aa51530 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -299,6 +299,7 @@ enum dma_slave_buswidth { DMA_SLAVE_BUSWIDTH_UNDEFINED = 0, DMA_SLAVE_BUSWIDTH_1_BYTE = 1, DMA_SLAVE_BUSWIDTH_2_BYTES = 2, + DMA_SLAVE_BUSWIDTH_3_BYTES = 3, DMA_SLAVE_BUSWIDTH_4_BYTES = 4, DMA_SLAVE_BUSWIDTH_8_BYTES = 8, }; -- cgit v1.2.3 From 1e4c0d7c9a2b44e18fe9e93712672741f70e36da Mon Sep 17 00:00:00 2001 From: Richard Fitzgerald Date: Mon, 7 Jul 2014 13:16:54 +0100 Subject: ASoC: add SOC_VALUE_ENUM_EXT Adds an equivalent of SOC_ENUM_EXT for value enums Strictly speaking SOC_ENUM_EXT can also be used to define a value enum since the only difference is the get and set functions. But this doesn't look good in code because it is inconsistent with the normal control definitions. Adding a specific SOC_VALUE_ENUM_EXT is better for code clarity. Signed-off-by: Richard Fitzgerald Signed-off-by: Mark Brown --- include/sound/soc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index ed9e2d7e5fdc..5d812cfe9427 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -248,6 +248,8 @@ .info = snd_soc_info_enum_double, \ .get = xhandler_get, .put = xhandler_put, \ .private_value = (unsigned long)&xenum } +#define SOC_VALUE_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ + SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) #define SND_SOC_BYTES(xname, xbase, xregs) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ -- cgit v1.2.3 From 0b9f7d93ca6109048a4eb06332b666b6e29df4fe Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Mon, 7 Jul 2014 15:43:51 +0800 Subject: ACPI / i915: ignore firmware requests for backlight change Some Thinkpad laptops' firmware will initiate a backlight level change request through operation region on the events of AC plug/unplug, but since we are not using firmware's interface to do the backlight setting on these affected laptops, we do not want the firmware to use some arbitrary value from its ASL variable to set the backlight level on AC plug/unplug either. Link: https://bugzilla.kernel.org/show_bug.cgi?id=76491 Link: https://bugzilla.kernel.org/show_bug.cgi?id=77091 Reported-and-tested-by: Igor Gnatenko Reported-and-tested-by: Anton Gubarkov Signed-off-by: Aaron Lu Acked-by: Jani Nikula Signed-off-by: Rafael J. Wysocki --- include/acpi/video.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/acpi/video.h b/include/acpi/video.h index ea4c7bbded4d..843ef1adfbfa 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -22,6 +22,7 @@ extern void acpi_video_unregister(void); extern void acpi_video_unregister_backlight(void); extern int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid); +extern bool acpi_video_verify_backlight_support(void); #else static inline int acpi_video_register(void) { return 0; } static inline void acpi_video_unregister(void) { return; } @@ -31,6 +32,7 @@ static inline int acpi_video_get_edid(struct acpi_device *device, int type, { return -ENODEV; } +static inline bool acpi_video_verify_backlight_support(void) { return false; } #endif #endif -- cgit v1.2.3 From c0fb262bf226a5c943e4309662353d5fb905310a Mon Sep 17 00:00:00 2001 From: Arun Kumar K Date: Fri, 11 Jul 2014 08:03:59 +0900 Subject: clk: exynos5420: Add IDs for clocks used in PD mfc Adds IDs for MUX clocks to be used by power domain for MFC for doing re-parenting while pd on/off. Signed-off-by: Arun Kumar K Signed-off-by: Shaik Ameer Basha Acked-by: Tomasz Figa Signed-off-by: Kukjin Kim --- include/dt-bindings/clock/exynos5420.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/dt-bindings/clock/exynos5420.h b/include/dt-bindings/clock/exynos5420.h index 97dcb89d37d3..3fc08ff24fa9 100644 --- a/include/dt-bindings/clock/exynos5420.h +++ b/include/dt-bindings/clock/exynos5420.h @@ -203,6 +203,8 @@ #define CLK_MOUT_G3D 641 #define CLK_MOUT_VPLL 642 #define CLK_MOUT_MAUDIO0 643 +#define CLK_MOUT_USER_ACLK333 644 +#define CLK_MOUT_SW_ACLK333 645 /* divider clocks */ #define CLK_DOUT_PIXEL 768 -- cgit v1.2.3 From 38e029f14a9702f71d5953246df9f722bca49017 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 1 Jul 2014 12:23:12 +0200 Subject: netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale An updater may interfer with the dumping of any of the object lists. Fix this by using a per-net generation counter and use the nl_dump_check_consistent() interface so the NLM_F_DUMP_INTR flag is set to notify userspace that it has to restart the dump since an updater has interfered. This patch also replaces the existing consistency checking code in the rule dumping path since it is broken. Basically, the value that the dump callback returns is not propagated to userspace via netlink_dump_start(). Signed-off-by: Pablo Neira Ayuso --- include/net/netns/nftables.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h index 26a394cb91a8..eee608b12cc9 100644 --- a/include/net/netns/nftables.h +++ b/include/net/netns/nftables.h @@ -13,8 +13,8 @@ struct netns_nftables { struct nft_af_info *inet; struct nft_af_info *arp; struct nft_af_info *bridge; + unsigned int base_seq; u8 gencursor; - u8 genctr; }; #endif -- cgit v1.2.3 From ce355e209feb030945dae4c358c02f29a84f3f8b Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 9 Jul 2014 15:14:06 +0200 Subject: netfilter: nf_tables: 64bit stats need some extra synchronization Use generic u64_stats_sync infrastructure to get proper 64bit stats, even on 32bit arches, at no extra cost for 64bit arches. Without this fix, 32bit arches can have some wrong counters at the time the carry is propagated into upper word. Signed-off-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_tables.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 713b0b88bd5a..c4d86198d3d6 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -6,6 +6,7 @@ #include #include #include +#include #include #define NFT_JUMP_STACK_SIZE 16 @@ -528,8 +529,9 @@ enum nft_chain_type { }; struct nft_stats { - u64 bytes; - u64 pkts; + u64 bytes; + u64 pkts; + struct u64_stats_sync syncp; }; #define NFT_HOOK_OPS_MAX 2 -- cgit v1.2.3 From d788cbd3f9065d829351746f94417d469f14eaaf Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Tue, 1 Jul 2014 06:32:27 +0900 Subject: ASoC: samsung: remove s5pc100 related codes This patch removes s5pc100 related codes in . Signed-off-by: Kukjin Kim Signed-off-by: Mark Brown --- include/linux/platform_data/asoc-s3c.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include') diff --git a/include/linux/platform_data/asoc-s3c.h b/include/linux/platform_data/asoc-s3c.h index 709c6f7e2f8c..a6591c693ebb 100644 --- a/include/linux/platform_data/asoc-s3c.h +++ b/include/linux/platform_data/asoc-s3c.h @@ -15,15 +15,6 @@ #define S3C64XX_AC97_GPE 1 extern void s3c64xx_ac97_setup_gpio(int); -/* - * The machine init code calls s5p*_spdif_setup_gpio with - * one of these defines in order to select appropriate bank - * of GPIO for S/PDIF pins - */ -#define S5PC100_SPDIF_GPD 0 -#define S5PC100_SPDIF_GPG3 1 -extern void s5pc100_spdif_setup_gpio(int); - struct samsung_i2s { /* If the Primary DAI has 5.1 Channels */ #define QUIRK_PRI_6CHAN (1 << 0) -- cgit v1.2.3 From 9ecf07a1d8f70f72ec99a0f102c8aa24609d84f4 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Sat, 12 Jul 2014 22:36:44 +0200 Subject: neigh: sysctl - simplify address calculation of gc_* variables The code in neigh_sysctl_register() relies on a specific layout of struct neigh_table, namely that the 'gc_*' variables are directly following the 'parms' member in a specific order. The code, though, expresses this in the most ugly way. Get rid of the ugly casts and use the 'tbl' pointer to get a handle to the table. This way we can refer to the 'gc_*' variables directly. Similarly seen in the grsecurity patch, written by Brad Spengler. Signed-off-by: Mathias Krause Cc: Brad Spengler Signed-off-by: David S. Miller --- include/net/neighbour.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 7277caf3743d..47f425464f84 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -203,7 +203,6 @@ struct neigh_table { void (*proxy_redo)(struct sk_buff *skb); char *id; struct neigh_parms parms; - /* HACK. gc_* should follow parms without a gap! */ int gc_interval; int gc_thresh1; int gc_thresh2; -- cgit v1.2.3 From 0cea76f3393782d67ccea8f07e9abf341bc4f60e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 15 Jul 2014 16:31:01 +0200 Subject: ALSA: control: Define SNDRV_CTL_TLV_OP_* constants Instead of hard-coded magic numbers, define constants for op_flag to tlv callbacks. Signed-off-by: Takashi Iwai --- include/sound/control.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/sound/control.h b/include/sound/control.h index 5358892b1b39..042613938a1d 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -31,10 +31,15 @@ typedef int (snd_kcontrol_info_t) (struct snd_kcontrol * kcontrol, struct snd_ct typedef int (snd_kcontrol_get_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_value * ucontrol); typedef int (snd_kcontrol_put_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_value * ucontrol); typedef int (snd_kcontrol_tlv_rw_t)(struct snd_kcontrol *kcontrol, - int op_flag, /* 0=read,1=write,-1=command */ + int op_flag, /* SNDRV_CTL_TLV_OP_XXX */ unsigned int size, unsigned int __user *tlv); +enum { + SNDRV_CTL_TLV_OP_READ = 0, + SNDRV_CTL_TLV_OP_WRITE = 1, + SNDRV_CTL_TLV_OP_CMD = -1, +}; struct snd_kcontrol_new { snd_ctl_elem_iface_t iface; /* interface identifier */ -- cgit v1.2.3 From 046a619d8e9746fa4c0e29e8c6b78e16efc008a8 Mon Sep 17 00:00:00 2001 From: Jason Low Date: Mon, 14 Jul 2014 10:27:48 -0700 Subject: locking/spinlocks/mcs: Rename optimistic_spin_queue() to optimistic_spin_node() Currently, the per-cpu nodes structure for the cancellable MCS spinlock is named "optimistic_spin_queue". However, in a follow up patch in the series we will be introducing a new structure that serves as the new "handle" for the lock. It would make more sense if that structure is named "optimistic_spin_queue". Additionally, since the current use of the "optimistic_spin_queue" structure are "nodes", it might be better if we rename them to "node" anyway. This preparatory patch renames all current "optimistic_spin_queue" to "optimistic_spin_node". Signed-off-by: Jason Low Signed-off-by: Peter Zijlstra Cc: Scott Norton Cc: "Paul E. McKenney" Cc: Dave Chinner Cc: Waiman Long Cc: Davidlohr Bueso Cc: Rik van Riel Cc: Andrew Morton Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Tim Chen Cc: Konrad Rzeszutek Wilk Cc: Aswin Chandramouleeswaran Cc: Linus Torvalds Cc: Chris Mason Cc: Heiko Carstens Cc: Josef Bacik Link: http://lkml.kernel.org/r/1405358872-3732-2-git-send-email-jason.low2@hp.com Signed-off-by: Ingo Molnar --- include/linux/mutex.h | 4 ++-- include/linux/rwsem.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 11692dea18aa..885f3f56a77f 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -46,7 +46,7 @@ * - detects multi-task circular deadlocks and prints out all affected * locks and tasks (and only those tasks) */ -struct optimistic_spin_queue; +struct optimistic_spin_node; struct mutex { /* 1: unlocked, 0: locked, negative: locked, possible waiters */ atomic_t count; @@ -56,7 +56,7 @@ struct mutex { struct task_struct *owner; #endif #ifdef CONFIG_MUTEX_SPIN_ON_OWNER - struct optimistic_spin_queue *osq; /* Spinner MCS lock */ + struct optimistic_spin_node *osq; /* Spinner MCS lock */ #endif #ifdef CONFIG_DEBUG_MUTEXES const char *name; diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 8d79708146aa..ba3f108ddea1 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -16,7 +16,7 @@ #include -struct optimistic_spin_queue; +struct optimistic_spin_node; struct rw_semaphore; #ifdef CONFIG_RWSEM_GENERIC_SPINLOCK @@ -33,7 +33,7 @@ struct rw_semaphore { * if the owner is running on the cpu. */ struct task_struct *owner; - struct optimistic_spin_queue *osq; /* spinner MCS lock */ + struct optimistic_spin_node *osq; /* spinner MCS lock */ #endif #ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map; -- cgit v1.2.3 From 90631822c5d307b5410500806e8ac3e63928aa3e Mon Sep 17 00:00:00 2001 From: Jason Low Date: Mon, 14 Jul 2014 10:27:49 -0700 Subject: locking/spinlocks/mcs: Convert osq lock to atomic_t to reduce overhead The cancellable MCS spinlock is currently used to queue threads that are doing optimistic spinning. It uses per-cpu nodes, where a thread obtaining the lock would access and queue the local node corresponding to the CPU that it's running on. Currently, the cancellable MCS lock is implemented by using pointers to these nodes. In this patch, instead of operating on pointers to the per-cpu nodes, we store the CPU numbers in which the per-cpu nodes correspond to in atomic_t. A similar concept is used with the qspinlock. By operating on the CPU # of the nodes using atomic_t instead of pointers to those nodes, this can reduce the overhead of the cancellable MCS spinlock by 32 bits (on 64 bit systems). Signed-off-by: Jason Low Signed-off-by: Peter Zijlstra Cc: Scott Norton Cc: "Paul E. McKenney" Cc: Dave Chinner Cc: Waiman Long Cc: Davidlohr Bueso Cc: Rik van Riel Cc: Andrew Morton Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Tim Chen Cc: Konrad Rzeszutek Wilk Cc: Aswin Chandramouleeswaran Cc: Linus Torvalds Cc: Chris Mason Cc: Heiko Carstens Cc: Josef Bacik Link: http://lkml.kernel.org/r/1405358872-3732-3-git-send-email-jason.low2@hp.com Signed-off-by: Ingo Molnar --- include/linux/mutex.h | 4 ++-- include/linux/osq_lock.h | 19 +++++++++++++++++++ include/linux/rwsem.h | 7 +++---- 3 files changed, 24 insertions(+), 6 deletions(-) create mode 100644 include/linux/osq_lock.h (limited to 'include') diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 885f3f56a77f..42aa9b9ecd5f 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -17,6 +17,7 @@ #include #include #include +#include /* * Simple, straightforward mutexes with strict semantics: @@ -46,7 +47,6 @@ * - detects multi-task circular deadlocks and prints out all affected * locks and tasks (and only those tasks) */ -struct optimistic_spin_node; struct mutex { /* 1: unlocked, 0: locked, negative: locked, possible waiters */ atomic_t count; @@ -56,7 +56,7 @@ struct mutex { struct task_struct *owner; #endif #ifdef CONFIG_MUTEX_SPIN_ON_OWNER - struct optimistic_spin_node *osq; /* Spinner MCS lock */ + struct optimistic_spin_queue osq; /* Spinner MCS lock */ #endif #ifdef CONFIG_DEBUG_MUTEXES const char *name; diff --git a/include/linux/osq_lock.h b/include/linux/osq_lock.h new file mode 100644 index 000000000000..b001682bf7cb --- /dev/null +++ b/include/linux/osq_lock.h @@ -0,0 +1,19 @@ +#ifndef __LINUX_OSQ_LOCK_H +#define __LINUX_OSQ_LOCK_H + +/* + * An MCS like lock especially tailored for optimistic spinning for sleeping + * lock implementations (mutex, rwsem, etc). + */ + +#define OSQ_UNLOCKED_VAL (0) + +struct optimistic_spin_queue { + /* + * Stores an encoded value of the CPU # of the tail node in the queue. + * If the queue is empty, then it's set to OSQ_UNLOCKED_VAL. + */ + atomic_t tail; +}; + +#endif diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index ba3f108ddea1..9fdcdd03507d 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -13,10 +13,9 @@ #include #include #include - #include +#include -struct optimistic_spin_node; struct rw_semaphore; #ifdef CONFIG_RWSEM_GENERIC_SPINLOCK @@ -33,7 +32,7 @@ struct rw_semaphore { * if the owner is running on the cpu. */ struct task_struct *owner; - struct optimistic_spin_node *osq; /* spinner MCS lock */ + struct optimistic_spin_queue osq; /* spinner MCS lock */ #endif #ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map; @@ -70,7 +69,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem) __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock), \ LIST_HEAD_INIT((name).wait_list), \ NULL, /* owner */ \ - NULL /* mcs lock */ \ + { ATOMIC_INIT(OSQ_UNLOCKED_VAL) } /* osq */ \ __RWSEM_DEP_MAP_INIT(name) } #else #define __RWSEM_INITIALIZER(name) \ -- cgit v1.2.3 From 4d9d951e6b5df85ccfca2c5bd8b4f5c71d256b65 Mon Sep 17 00:00:00 2001 From: Jason Low Date: Mon, 14 Jul 2014 10:27:50 -0700 Subject: locking/spinlocks/mcs: Introduce and use init macro and function for osq locks Currently, we initialize the osq lock by directly setting the lock's values. It would be preferable if we use an init macro to do the initialization like we do with other locks. This patch introduces and uses a macro and function for initializing the osq lock. Signed-off-by: Jason Low Signed-off-by: Peter Zijlstra Cc: Scott Norton Cc: "Paul E. McKenney" Cc: Dave Chinner Cc: Waiman Long Cc: Davidlohr Bueso Cc: Rik van Riel Cc: Andrew Morton Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Tim Chen Cc: Konrad Rzeszutek Wilk Cc: Aswin Chandramouleeswaran Cc: Linus Torvalds Cc: Chris Mason Cc: Josef Bacik Link: http://lkml.kernel.org/r/1405358872-3732-4-git-send-email-jason.low2@hp.com Signed-off-by: Ingo Molnar --- include/linux/osq_lock.h | 8 ++++++++ include/linux/rwsem.h | 2 +- 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/osq_lock.h b/include/linux/osq_lock.h index b001682bf7cb..90230d5811c5 100644 --- a/include/linux/osq_lock.h +++ b/include/linux/osq_lock.h @@ -16,4 +16,12 @@ struct optimistic_spin_queue { atomic_t tail; }; +/* Init macro and function. */ +#define OSQ_LOCK_UNLOCKED { ATOMIC_INIT(OSQ_UNLOCKED_VAL) } + +static inline void osq_lock_init(struct optimistic_spin_queue *lock) +{ + atomic_set(&lock->tail, OSQ_UNLOCKED_VAL); +} + #endif diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 9fdcdd03507d..25cd9aa2f3d7 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -69,7 +69,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem) __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock), \ LIST_HEAD_INIT((name).wait_list), \ NULL, /* owner */ \ - { ATOMIC_INIT(OSQ_UNLOCKED_VAL) } /* osq */ \ + OSQ_LOCK_UNLOCKED /* osq */ \ __RWSEM_DEP_MAP_INIT(name) } #else #define __RWSEM_INITIALIZER(name) \ -- cgit v1.2.3 From 13b9a962a2594ee880c5d50d7f70964da1d4fe5a Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 16 Jul 2014 14:54:55 +0200 Subject: locking/rwsem: Rename 'activity' to 'count' There are two definitions of struct rw_semaphore, one in linux/rwsem.h and one in linux/rwsem-spinlock.h. For some reason they have different names for the initial field. This makes it impossible to use C99 named initialization for __RWSEM_INITIALIZER() -- or we have to duplicate that entire thing along with the structure definitions. The simpler patch is renaming the rwsem-spinlock variant to match the regular rwsem. This allows us to switch to C99 named initialization. Signed-off-by: Peter Zijlstra Cc: Linus Torvalds Link: http://lkml.kernel.org/n/tip-bmrZolsbGmautmzrerog27io@git.kernel.org Signed-off-by: Ingo Molnar --- include/linux/rwsem-spinlock.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h index d5b13bc07a0b..561e8615528d 100644 --- a/include/linux/rwsem-spinlock.h +++ b/include/linux/rwsem-spinlock.h @@ -15,13 +15,13 @@ #ifdef __KERNEL__ /* * the rw-semaphore definition - * - if activity is 0 then there are no active readers or writers - * - if activity is +ve then that is the number of active readers - * - if activity is -1 then there is one active writer + * - if count is 0 then there are no active readers or writers + * - if count is +ve then that is the number of active readers + * - if count is -1 then there is one active writer * - if wait_list is not empty, then there are processes waiting for the semaphore */ struct rw_semaphore { - __s32 activity; + __s32 count; raw_spinlock_t wait_lock; struct list_head wait_list; #ifdef CONFIG_DEBUG_LOCK_ALLOC -- cgit v1.2.3 From ce069fc920e5734558b3d9cbef1ab06cf01ee793 Mon Sep 17 00:00:00 2001 From: Jason Low Date: Mon, 14 Jul 2014 10:27:52 -0700 Subject: locking/rwsem: Reduce the size of struct rw_semaphore Recent optimistic spinning additions to rwsem provide significant performance benefits on many workloads on large machines. The cost of it was increasing the size of the rwsem structure by up to 128 bits. However, now that the previous patches in this series bring the overhead of struct optimistic_spin_queue to 32 bits, this patch reorders some fields in struct rw_semaphore such that we can reduce the overhead of the rwsem structure by 64 bits (on 64 bit systems). The extra overhead required for rwsem optimistic spinning would now be up to 8 additional bytes instead of up to 16 bytes. Additionally, the size of rwsem would now be more in line with mutexes. Signed-off-by: Jason Low Signed-off-by: Peter Zijlstra Cc: Scott Norton Cc: "Paul E. McKenney" Cc: Dave Chinner Cc: Waiman Long Cc: Davidlohr Bueso Cc: Rik van Riel Cc: Andrew Morton Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Tim Chen Cc: Konrad Rzeszutek Wilk Cc: Aswin Chandramouleeswaran Cc: Linus Torvalds Cc: Chris Mason Cc: Josef Bacik Link: http://lkml.kernel.org/r/1405358872-3732-6-git-send-email-jason.low2@hp.com Signed-off-by: Ingo Molnar --- include/linux/rwsem.h | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 25cd9aa2f3d7..716807f0eb2d 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -24,15 +24,15 @@ struct rw_semaphore; /* All arch specific implementations share the same struct */ struct rw_semaphore { long count; - raw_spinlock_t wait_lock; struct list_head wait_list; + raw_spinlock_t wait_lock; #ifdef CONFIG_SMP + struct optimistic_spin_queue osq; /* spinner MCS lock */ /* * Write owner. Used as a speculative check to see * if the owner is running on the cpu. */ struct task_struct *owner; - struct optimistic_spin_queue osq; /* spinner MCS lock */ #endif #ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map; @@ -64,21 +64,18 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem) #endif #if defined(CONFIG_SMP) && !defined(CONFIG_RWSEM_GENERIC_SPINLOCK) -#define __RWSEM_INITIALIZER(name) \ - { RWSEM_UNLOCKED_VALUE, \ - __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock), \ - LIST_HEAD_INIT((name).wait_list), \ - NULL, /* owner */ \ - OSQ_LOCK_UNLOCKED /* osq */ \ - __RWSEM_DEP_MAP_INIT(name) } +#define __RWSEM_OPT_INIT(lockname) , .osq = OSQ_LOCK_UNLOCKED, .owner = NULL #else -#define __RWSEM_INITIALIZER(name) \ - { RWSEM_UNLOCKED_VALUE, \ - __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock), \ - LIST_HEAD_INIT((name).wait_list) \ - __RWSEM_DEP_MAP_INIT(name) } +#define __RWSEM_OPT_INIT(lockname) #endif +#define __RWSEM_INITIALIZER(name) \ + { .count = RWSEM_UNLOCKED_VALUE, \ + .wait_list = LIST_HEAD_INIT((name).wait_list), \ + .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock) \ + __RWSEM_OPT_INIT(name) \ + __RWSEM_DEP_MAP_INIT(name) } + #define DECLARE_RWSEM(name) \ struct rw_semaphore name = __RWSEM_INITIALIZER(name) -- cgit v1.2.3 From 5db6c6fefb1ca0e81e3bd6dd8998bf51c453d823 Mon Sep 17 00:00:00 2001 From: Davidlohr Bueso Date: Fri, 11 Jul 2014 14:00:06 -0700 Subject: locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER Just like with mutexes (CONFIG_MUTEX_SPIN_ON_OWNER), encapsulate the dependencies for rwsem optimistic spinning. No logical changes here as it continues to depend on both SMP and the XADD algorithm variant. Signed-off-by: Davidlohr Bueso Acked-by: Jason Low [ Also make it depend on ARCH_SUPPORTS_ATOMIC_RMW. ] Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1405112406-13052-2-git-send-email-davidlohr@hp.com Cc: aswin@hp.com Cc: Chris Mason Cc: Davidlohr Bueso Cc: Josef Bacik Cc: Linus Torvalds Cc: Waiman Long Signed-off-by: Ingo Molnar Signed-off-by: Ingo Molnar --- include/linux/rwsem.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 716807f0eb2d..035d3c57fc8a 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -14,7 +14,9 @@ #include #include #include +#ifdef CONFIG_RWSEM_SPIN_ON_OWNER #include +#endif struct rw_semaphore; @@ -26,7 +28,7 @@ struct rw_semaphore { long count; struct list_head wait_list; raw_spinlock_t wait_lock; -#ifdef CONFIG_SMP +#ifdef CONFIG_RWSEM_SPIN_ON_OWNER struct optimistic_spin_queue osq; /* spinner MCS lock */ /* * Write owner. Used as a speculative check to see @@ -63,7 +65,7 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem) # define __RWSEM_DEP_MAP_INIT(lockname) #endif -#if defined(CONFIG_SMP) && !defined(CONFIG_RWSEM_GENERIC_SPINLOCK) +#ifdef CONFIG_RWSEM_SPIN_ON_OWNER #define __RWSEM_OPT_INIT(lockname) , .osq = OSQ_LOCK_UNLOCKED, .owner = NULL #else #define __RWSEM_OPT_INIT(lockname) -- cgit v1.2.3 From 7523a271682fc1f35355da344249ce8f8c8b8cb9 Mon Sep 17 00:00:00 2001 From: Omair Mohammed Abdullah Date: Tue, 15 Jul 2014 21:34:48 +0530 Subject: ASoC: core: add a helper for extended byte controls using TLV ALSA supports arbitrary length TLVs for each kcontrol that can be used to pass metadata about the control (e.g. volumes, enum information). The same transport mechanism is now used for arbitrary length data by defining a new helper. Signed-off-by: Omair Mohammed Abdullah Signed-off-by: Vinod Koul Signed-off-by: Mark Brown --- include/sound/soc.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index ed9e2d7e5fdc..688fa667dee5 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -270,7 +270,14 @@ .get = xhandler_get, .put = xhandler_put, \ .private_value = (unsigned long)&(struct soc_bytes_ext) \ {.max = xcount} } - +#define SND_SOC_BYTES_TLV(xname, xcount, xhandler_get, xhandler_put) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .access = SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE | \ + SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \ + .tlv.c = (snd_soc_bytes_tlv_callback), \ + .info = snd_soc_info_bytes_ext, \ + .private_value = (unsigned long)&(struct soc_bytes_ext) \ + {.max = xcount, .get = xhandler_get, .put = xhandler_put, } } #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \ xmin, xmax, xinvert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ @@ -552,6 +559,8 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *ucontrol); +int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, + unsigned int size, unsigned int __user *tlv); int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, @@ -1119,6 +1128,9 @@ struct soc_bytes { struct soc_bytes_ext { int max; + /* used for TLV byte control */ + int (*get)(unsigned int __user *bytes, unsigned int size); + int (*put)(const unsigned int __user *bytes, unsigned int size); }; /* multi register control */ -- cgit v1.2.3 From 88bd870f02dff5c9445286e185f21873f25a977f Mon Sep 17 00:00:00 2001 From: Benoit Cousson Date: Tue, 8 Jul 2014 23:19:34 +0200 Subject: ASoC: core: Add initial support for DAI multicodec DAI link assumes a one to one mapping between CPU DAI and CODEC. In some cases, the same CPU DAI can be connected to several codecs. This is the case for example, if you connect two mono codecs to the same I2S link in order to have a stereo card. The current ASoC implementation does not allow such setup. Add support for DAI links composed of a single CPU DAI and multiple CODECs. Sound cards have to pass the CODECs array in the corresponding DAI link through a new 'snd_soc_dai_link_component' struct. Each CODEC in this array is described in the same manner single CODEC DAIs are (either DT/OF node or codec_name). Multi-codec links are not supported in the case of CODEC to CODEC links. Just print a warning if it happens. Based on an original code done by Misael. Signed-off-by: Benoit Cousson Signed-off-by: Misael Lopez Cruz Signed-off-by: Fabien Parent Tested-by: Lars-Peter Clausen Reviewed-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc-dai.h | 4 ++++ include/sound/soc.h | 13 +++++++++++++ 2 files changed, 17 insertions(+) (limited to 'include') diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 031be2ab75d0..e8b3080d196a 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -272,6 +272,10 @@ struct snd_soc_dai { struct snd_soc_codec *codec; struct snd_soc_component *component; + /* CODEC TDM slot masks and params (for fixup) */ + unsigned int tx_mask; + unsigned int rx_mask; + struct snd_soc_card *card; struct list_head list; diff --git a/include/sound/soc.h b/include/sound/soc.h index 9a5b4f6fe847..f2142cf3f243 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -846,6 +846,12 @@ struct snd_soc_platform_driver { int (*bespoke_trigger)(struct snd_pcm_substream *, int); }; +struct snd_soc_dai_link_component { + const char *name; + const struct device_node *of_node; + const char *dai_name; +}; + struct snd_soc_platform { struct device *dev; const struct snd_soc_platform_driver *driver; @@ -891,6 +897,10 @@ struct snd_soc_dai_link { const struct device_node *codec_of_node; /* You MUST specify the DAI name within the codec */ const char *codec_dai_name; + + struct snd_soc_dai_link_component *codecs; + unsigned int num_codecs; + /* * You MAY specify the link's platform/PCM/DMA driver, either by * device name, or by DT/OF node, but not both. Some forms of link @@ -1089,6 +1099,9 @@ struct snd_soc_pcm_runtime { struct snd_soc_dai *codec_dai; struct snd_soc_dai *cpu_dai; + struct snd_soc_dai **codec_dais; + unsigned int num_codecs; + struct delayed_work delayed_work; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dpcm_root; -- cgit v1.2.3 From 93e6958a3674d2fa42e2c24ad5156e65da1d8621 Mon Sep 17 00:00:00 2001 From: Benoit Cousson Date: Tue, 8 Jul 2014 23:19:38 +0200 Subject: ASoC: pcm: Add soc_dai_hw_params helper Add a function helper to factorize the hw_params code. Suggested by Lars-Peter Clausen Signed-off-by: Benoit Cousson Tested-by: Lars-Peter Clausen Reviewed-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index f2142cf3f243..98555f833ab4 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -436,6 +436,10 @@ int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, int snd_soc_platform_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_platform *platform); +int soc_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai); + /* Jack reporting */ int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type, struct snd_soc_jack *jack); -- cgit v1.2.3 From 5df7f71d5cdfbcbfd7e1b68df9994609d33f7e58 Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Mon, 14 Jul 2014 15:10:45 -0500 Subject: ASoC: tas2552: Support TI TAS2552 Amplifier Support the TI TAS2552 Class D amplifier. The TAS2552 is a high efficiency Class-D audio power amplifier with advanced battery current management and an integrated Class-G boost The device constantly measures the current and voltage across the load and provides a digital stream of this information. Signed-off-by: Dan Murphy Signed-off-by: Mark Brown --- include/sound/tas2552-plat.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 include/sound/tas2552-plat.h (limited to 'include') diff --git a/include/sound/tas2552-plat.h b/include/sound/tas2552-plat.h new file mode 100644 index 000000000000..65e7627ba38e --- /dev/null +++ b/include/sound/tas2552-plat.h @@ -0,0 +1,25 @@ +/* + * TAS2552 driver platform header + * + * Copyright (C) 2014 Texas Instruments Inc. + * + * Author: Dan Murphy + * + * 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. + */ + +#ifndef TAS2552_PLAT_H +#define TAS2552_PLAT_H + +struct tas2552_platform_data { + int enable_gpio; +}; + +#endif -- cgit v1.2.3 From 2b1987a9f1e6250c962ca13820d3c69817879266 Mon Sep 17 00:00:00 2001 From: Brian W Hart Date: Fri, 27 Jun 2014 16:09:39 -0500 Subject: cpufreq: make table sentinel macros unsigned to match use MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 5eeaf1f18973 (cpufreq: Fix build error on some platforms that use cpufreq_for_each_*) moved function cpufreq_next_valid() to a public header. Warnings are now generated when objects including that header are built with -Wsign-compare (as an out-of-tree module might be): .../include/linux/cpufreq.h: In function ‘cpufreq_next_valid’: .../include/linux/cpufreq.h:519:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((*pos)->frequency != CPUFREQ_TABLE_END) ^ .../include/linux/cpufreq.h:520:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((*pos)->frequency != CPUFREQ_ENTRY_INVALID) ^ Constants CPUFREQ_ENTRY_INVALID and CPUFREQ_TABLE_END are signed, but are used with unsigned member 'frequency' of cpufreq_frequency_table. Update the macro definitions to be explicitly unsigned to match their use. This also corrects potentially wrong behavior of clk_rate_table_iter() if unsigned long is wider than usigned int. Fixes: 5eeaf1f18973 (cpufreq: Fix build error on some platforms that use cpufreq_for_each_*) Signed-off-by: Brian W Hart Reviewed-by: Simon Horman Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- include/linux/cpufreq.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index ec4112d257bc..8f8ae95c6e27 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -482,8 +482,8 @@ extern struct cpufreq_governor cpufreq_gov_conservative; *********************************************************************/ /* Special Values of .frequency field */ -#define CPUFREQ_ENTRY_INVALID ~0 -#define CPUFREQ_TABLE_END ~1 +#define CPUFREQ_ENTRY_INVALID ~0u +#define CPUFREQ_TABLE_END ~1u /* Special Values of .flags field */ #define CPUFREQ_BOOST_FREQ (1 << 0) -- cgit v1.2.3 From d7afaec0b564f0609e116f562983b8e72fc3e9c9 Mon Sep 17 00:00:00 2001 From: Andrew Gallagher Date: Tue, 22 Jul 2014 16:37:43 +0200 Subject: fuse: add FUSE_NO_OPEN_SUPPORT flag to INIT Here some additional changes to set a capability flag so that clients can detect when it's appropriate to return -ENOSYS from open. This amends the following commit introduced in 3.14: 7678ac50615d fuse: support clients that don't implement 'open' However we can only add the flag to 3.15 and later since there was no protocol version update in 3.14. Signed-off-by: Miklos Szeredi Cc: # v3.15+ --- include/uapi/linux/fuse.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h index 40b5ca8a1b1f..25084a052a1e 100644 --- a/include/uapi/linux/fuse.h +++ b/include/uapi/linux/fuse.h @@ -101,6 +101,7 @@ * - add FATTR_CTIME * - add ctime and ctimensec to fuse_setattr_in * - add FUSE_RENAME2 request + * - add FUSE_NO_OPEN_SUPPORT flag */ #ifndef _LINUX_FUSE_H @@ -229,6 +230,7 @@ struct fuse_file_lock { * FUSE_READDIRPLUS_AUTO: adaptive readdirplus * FUSE_ASYNC_DIO: asynchronous direct I/O submission * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes + * FUSE_NO_OPEN_SUPPORT: kernel supports zero-message opens */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -247,6 +249,7 @@ struct fuse_file_lock { #define FUSE_READDIRPLUS_AUTO (1 << 14) #define FUSE_ASYNC_DIO (1 << 15) #define FUSE_WRITEBACK_CACHE (1 << 16) +#define FUSE_NO_OPEN_SUPPORT (1 << 17) /** * CUSE INIT request/reply flags -- cgit v1.2.3 From 9898e1ccf5af70ad2d03d5b77c591fb243c0f021 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 17 Jul 2014 22:01:05 +0200 Subject: ASoC: Remove per card platform list The platform_dev_list was added in commit f0fba2ad1b ("ASoC: multi-component - ASoC Multi-Component Support") and while platforms are added and remove from that list it is otherwise unused. This patch removes it again. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index 98555f833ab4..1f5b4901415e 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -865,7 +865,6 @@ struct snd_soc_platform { struct snd_soc_card *card; struct list_head list; - struct list_head card_list; struct snd_soc_component component; @@ -1056,7 +1055,6 @@ struct snd_soc_card { /* lists of probed devices belonging to this card */ struct list_head codec_dev_list; - struct list_head platform_dev_list; struct list_head widgets; struct list_head paths; @@ -1299,7 +1297,6 @@ static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd) static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card) { INIT_LIST_HEAD(&card->codec_dev_list); - INIT_LIST_HEAD(&card->platform_dev_list); INIT_LIST_HEAD(&card->widgets); INIT_LIST_HEAD(&card->paths); INIT_LIST_HEAD(&card->dapm_list); -- cgit v1.2.3 From 00200107a296cad3a950049a5ad7134a0d962b8d Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 17 Jul 2014 22:01:07 +0200 Subject: ASoC: Move card field form platform/codec to component Both the snd_soc_codec and snd_soc_platform struct do have a pointer to the parent card and both handle this pointer in mostly the same way. This patch moves the card field to the component level which will allow further code consolidation between platforms and CODECS. Since there are only a handful of users of the snd_soc_codec struct's card field (and none of the snd_soc_platform's) these are update in this patch as well, which allows it to be removed from the snd_soc_codec struct. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index 1f5b4901415e..5ee6ddde4831 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -691,6 +691,7 @@ struct snd_soc_component { int id; const char *name_prefix; struct device *dev; + struct snd_soc_card *card; unsigned int active; @@ -725,7 +726,6 @@ struct snd_soc_codec { const struct snd_soc_codec_driver *driver; struct mutex mutex; - struct snd_soc_card *card; struct list_head list; struct list_head card_list; @@ -863,7 +863,6 @@ struct snd_soc_platform { unsigned int suspended:1; /* platform is suspended */ unsigned int probed:1; - struct snd_soc_card *card; struct list_head list; struct snd_soc_component component; -- cgit v1.2.3 From 0f2780ad4c2a398528c7bb1572158d6e894e5dd2 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 17 Jul 2014 22:01:08 +0200 Subject: ASoC: Add function to register component controls We have now everything in place to actual let a component register controls. Add a function which allows to do so. Also update snd_soc_add_codec_controls() and snd_soc_platform_controls() to use this new function internally. And while we are at it also change the num_controls parameter of those two functions from int to unsigned int. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- include/sound/soc.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/sound/soc.h b/include/sound/soc.h index 5ee6ddde4831..50ff6f3459aa 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -507,10 +507,12 @@ struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, const char *prefix); struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, const char *name); +int snd_soc_add_component_controls(struct snd_soc_component *component, + const struct snd_kcontrol_new *controls, unsigned int num_controls); int snd_soc_add_codec_controls(struct snd_soc_codec *codec, - const struct snd_kcontrol_new *controls, int num_controls); + const struct snd_kcontrol_new *controls, unsigned int num_controls); int snd_soc_add_platform_controls(struct snd_soc_platform *platform, - const struct snd_kcontrol_new *controls, int num_controls); + const struct snd_kcontrol_new *controls, unsigned int num_controls); int snd_soc_add_card_controls(struct snd_soc_card *soc_card, const struct snd_kcontrol_new *controls, int num_controls); int snd_soc_add_dai_controls(struct snd_soc_dai *dai, -- cgit v1.2.3 From 23d9cec07c589276561c13b180577c0b87930140 Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Tue, 22 Jul 2014 10:39:54 -0500 Subject: pinctrl: dra: dt-bindings: Fix pull enable/disable The DRA74/72 control module pins have a weak pull up and pull down. This is configured by bit offset 17. if BIT(17) is 1, a pull up is selected, else a pull down is selected. However, this pull resisstor is applied based on BIT(16) - PULLUDENABLE - if BIT(18) is *0*, then pull as defined in BIT(17) is applied, else no weak pulls are applied. We defined this in reverse. Reference: Table 18-5 (Description of the pad configuration register bits) in Technical Reference Manual Revision (DRA74x revision Q: SPRUHI2Q Revised June 2014 and DRA72x revision F: SPRUHP2F - Revised June 2014) Fixes: 6e58b8f1daaf1a ("ARM: dts: DRA7: Add the dts files for dra7 SoC and dra7-evm board") Signed-off-by: Nishanth Menon Tested-by: Felipe Balbi Acked-by: Felipe Balbi Signed-off-by: Tony Lindgren --- include/dt-bindings/pinctrl/dra.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/dt-bindings/pinctrl/dra.h b/include/dt-bindings/pinctrl/dra.h index 002a2855c046..3d33794e4f3e 100644 --- a/include/dt-bindings/pinctrl/dra.h +++ b/include/dt-bindings/pinctrl/dra.h @@ -30,7 +30,8 @@ #define MUX_MODE14 0xe #define MUX_MODE15 0xf -#define PULL_ENA (1 << 16) +#define PULL_ENA (0 << 16) +#define PULL_DIS (1 << 16) #define PULL_UP (1 << 17) #define INPUT_EN (1 << 18) #define SLEWCONTROL (1 << 19) @@ -38,10 +39,10 @@ #define WAKEUP_EVENT (1 << 25) /* Active pin states */ -#define PIN_OUTPUT 0 +#define PIN_OUTPUT (0 | PULL_DIS) #define PIN_OUTPUT_PULLUP (PIN_OUTPUT | PULL_ENA | PULL_UP) #define PIN_OUTPUT_PULLDOWN (PIN_OUTPUT | PULL_ENA) -#define PIN_INPUT INPUT_EN +#define PIN_INPUT (INPUT_EN | PULL_DIS) #define PIN_INPUT_SLEW (INPUT_EN | SLEWCONTROL) #define PIN_INPUT_PULLUP (PULL_ENA | INPUT_EN | PULL_UP) #define PIN_INPUT_PULLDOWN (PULL_ENA | INPUT_EN) -- cgit v1.2.3 From 1a112d10f03e83fb3a2fdc4c9165865dec8a3ca6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 23 Jul 2014 09:05:27 -0400 Subject: libata: introduce ata_host->n_tags to avoid oops on SAS controllers 1871ee134b73 ("libata: support the ata host which implements a queue depth less than 32") directly used ata_port->scsi_host->can_queue from ata_qc_new() to determine the number of tags supported by the host; unfortunately, SAS controllers doing SATA don't initialize ->scsi_host leading to the following oops. BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 IP: [] ata_qc_new_init+0x188/0x1b0 PGD 0 Oops: 0002 [#1] SMP Modules linked in: isci libsas scsi_transport_sas mgag200 drm_kms_helper ttm CPU: 1 PID: 518 Comm: udevd Not tainted 3.16.0-rc6+ #62 Hardware name: Intel Corporation S2600CO/S2600CO, BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013 task: ffff880c1a00b280 ti: ffff88061a000000 task.ti: ffff88061a000000 RIP: 0010:[] [] ata_qc_new_init+0x188/0x1b0 RSP: 0018:ffff88061a003ae8 EFLAGS: 00010012 RAX: 0000000000000001 RBX: ffff88000241ca80 RCX: 00000000000000fa RDX: 0000000000000020 RSI: 0000000000000020 RDI: ffff8806194aa298 RBP: ffff88061a003ae8 R08: ffff8806194a8000 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88000241ca80 R12: ffff88061ad58200 R13: ffff8806194aa298 R14: ffffffff814e67a0 R15: ffff8806194a8000 FS: 00007f3ad7fe3840(0000) GS:ffff880627620000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000058 CR3: 000000061a118000 CR4: 00000000001407e0 Stack: ffff88061a003b20 ffffffff814e96e1 ffff88000241ca80 ffff88061ad58200 ffff8800b6bf6000 ffff880c1c988000 ffff880619903850 ffff88061a003b68 ffffffffa0056ce1 ffff88061a003b48 0000000013d6e6f8 ffff88000241ca80 Call Trace: [] ata_sas_queuecmd+0xa1/0x430 [] sas_queuecommand+0x191/0x220 [libsas] [] scsi_dispatch_cmd+0x10e/0x300 [] scsi_request_fn+0x2f5/0x550 [] __blk_run_queue+0x33/0x40 [] queue_unplugged+0x2a/0x90 [] blk_flush_plug_list+0x1b4/0x210 [] blk_finish_plug+0x14/0x50 [] __do_page_cache_readahead+0x198/0x1f0 [] force_page_cache_readahead+0x31/0x50 [] page_cache_sync_readahead+0x3e/0x50 [] generic_file_read_iter+0x496/0x5a0 [] blkdev_read_iter+0x37/0x40 [] new_sync_read+0x7e/0xb0 [] vfs_read+0x94/0x170 [] SyS_read+0x46/0xb0 [] ? SyS_lseek+0x91/0xb0 [] system_call_fastpath+0x16/0x1b Code: 00 00 00 88 50 29 83 7f 08 01 19 d2 83 e2 f0 83 ea 50 88 50 34 c6 81 1d 02 00 00 40 c6 81 17 02 00 00 00 5d c3 66 0f 1f 44 00 00 <89> 14 25 58 00 00 00 Fix it by introducing ata_host->n_tags which is initialized to ATA_MAX_QUEUE - 1 in ata_host_init() for SAS controllers and set to scsi_host_template->can_queue in ata_host_register() for !SAS ones. As SAS hosts are never registered, this will give them the same ATA_MAX_QUEUE - 1 as before. Note that we can't use scsi_host->can_queue directly for SAS hosts anyway as they can go higher than the libata maximum. Signed-off-by: Tejun Heo Reported-by: Mike Qiu Reported-by: Jesse Brandeburg Reported-by: Peter Hurley Reported-by: Peter Zijlstra Tested-by: Alexey Kardashevskiy Fixes: 1871ee134b73 ("libata: support the ata host which implements a queue depth less than 32") Cc: Kevin Hao Cc: Dan Williams Cc: stable@vger.kernel.org --- include/linux/libata.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/libata.h b/include/linux/libata.h index 5ab4e3a76721..92abb497ab14 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -593,6 +593,7 @@ struct ata_host { struct device *dev; void __iomem * const *iomap; unsigned int n_ports; + unsigned int n_tags; /* nr of NCQ tags */ void *private_data; struct ata_port_operations *ops; unsigned long flags; -- cgit v1.2.3 From a0f7a756c2f7543585657cdeeefdfcc11b567293 Mon Sep 17 00:00:00 2001 From: Naoya Horiguchi Date: Wed, 23 Jul 2014 14:00:01 -0700 Subject: mm/rmap.c: fix pgoff calculation to handle hugepage correctly I triggered VM_BUG_ON() in vma_address() when I tried to migrate an anonymous hugepage with mbind() in the kernel v3.16-rc3. This is because pgoff's calculation in rmap_walk_anon() fails to consider compound_order() only to have an incorrect value. This patch introduces page_to_pgoff(), which gets the page's offset in PAGE_CACHE_SIZE. Kirill pointed out that page cache tree should natively handle hugepages, and in order to make hugetlbfs fit it, page->index of hugetlbfs page should be in PAGE_CACHE_SIZE. This is beyond this patch, but page_to_pgoff() contains the point to be fixed in a single function. Signed-off-by: Naoya Horiguchi Acked-by: Kirill A. Shutemov Cc: Joonsoo Kim Cc: Hugh Dickins Cc: Rik van Riel Cc: Hillf Danton Cc: Naoya Horiguchi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pagemap.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 0a97b583ee8d..e1474ae18c88 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -398,6 +398,18 @@ static inline struct page *read_mapping_page(struct address_space *mapping, return read_cache_page(mapping, index, filler, data); } +/* + * Get the offset in PAGE_SIZE. + * (TODO: hugepage should have ->index in PAGE_SIZE) + */ +static inline pgoff_t page_to_pgoff(struct page *page) +{ + if (unlikely(PageHeadHuge(page))) + return page->index << compound_order(page); + else + return page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT); +} + /* * Return byte-offset into filesystem object for page. */ -- cgit v1.2.3 From 04ca6973f7c1a0d8537f2d9906a0cf8e69886d75 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 26 Jul 2014 08:58:10 +0200 Subject: ip: make IP identifiers less predictable In "Counting Packets Sent Between Arbitrary Internet Hosts", Jeffrey and Jedidiah describe ways exploiting linux IP identifier generation to infer whether two machines are exchanging packets. With commit 73f156a6e8c1 ("inetpeer: get rid of ip_id_count"), we changed IP id generation, but this does not really prevent this side-channel technique. This patch adds a random amount of perturbation so that IP identifiers for a given destination [1] are no longer monotonically increasing after an idle period. Note that prandom_u32_max(1) returns 0, so if generator is used at most once per jiffy, this patch inserts no hole in the ID suite and do not increase collision probability. This is jiffies based, so in the worst case (HZ=1000), the id can rollover after ~65 seconds of idle time, which should be fine. We also change the hash used in __ip_select_ident() to not only hash on daddr, but also saddr and protocol, so that ICMP probes can not be used to infer information for other protocols. For IPv6, adds saddr into the hash as well, but not nexthdr. If I ping the patched target, we can see ID are now hard to predict. 21:57:11.008086 IP (...) A > target: ICMP echo request, seq 1, length 64 21:57:11.010752 IP (... id 2081 ...) target > A: ICMP echo reply, seq 1, length 64 21:57:12.013133 IP (...) A > target: ICMP echo request, seq 2, length 64 21:57:12.015737 IP (... id 3039 ...) target > A: ICMP echo reply, seq 2, length 64 21:57:13.016580 IP (...) A > target: ICMP echo request, seq 3, length 64 21:57:13.019251 IP (... id 3437 ...) target > A: ICMP echo reply, seq 3, length 64 [1] TCP sessions uses a per flow ID generator not changed by this patch. Signed-off-by: Eric Dumazet Reported-by: Jeffrey Knockel Reported-by: Jedidiah R. Crandall Cc: Willy Tarreau Cc: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/net/ip.h | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'include') diff --git a/include/net/ip.h b/include/net/ip.h index 0e795df05ec9..7596eb22e1ce 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -309,16 +309,7 @@ static inline unsigned int ip_skb_dst_mtu(const struct sk_buff *skb) } } -#define IP_IDENTS_SZ 2048u -extern atomic_t *ip_idents; - -static inline u32 ip_idents_reserve(u32 hash, int segs) -{ - atomic_t *id_ptr = ip_idents + hash % IP_IDENTS_SZ; - - return atomic_add_return(segs, id_ptr) - segs; -} - +u32 ip_idents_reserve(u32 hash, int segs); void __ip_select_ident(struct iphdr *iph, int segs); static inline void ip_select_ident_segs(struct sk_buff *skb, struct sock *sk, int segs) -- cgit v1.2.3 From 94b912e42829b25d97b6b1f2be66c6aa81ac125f Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Tue, 29 Jul 2014 18:08:52 +0800 Subject: ARM: imx: Add the secondary request into the structure for imx-sdma SDMA supports device to device (per_2_per) scripts to handle DMA transfering between two peripheral devices. The per_2_per script, however, needs two dma requests from two sides while the current structure only defined one request. So this patch just simply adds the secondary request so as to let SDMA and its user to add its implementation later. [ Both change in the SDMA driver and its users like Freescale ASRC ASoC driver should be taken along with this change in order to truly support per_2_per sciprts. However, we here make an expediency by adding this first so that we can add either side later since this patch won't break any function and meanwhile it can make merge window more smoothly: we don't need to apply the change inside dmaengine branch via ASoC tree any more. -- Nicolin ] Signed-off-by: Nicolin Chen Acked-by: Shawn Guo Signed-off-by: Mark Brown --- include/linux/platform_data/dma-imx.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index bcbc6c3c14c0..d05542aafa3e 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -50,6 +50,7 @@ enum imx_dma_prio { struct imx_dma_data { int dma_request; /* DMA request line */ + int dma_request2; /* secondary DMA request line */ enum sdma_peripheral_type peripheral_type; int priority; }; -- cgit v1.2.3 From 20fbe3ae990fd54fc7d1f889d61958bc8b38f254 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Mon, 28 Jul 2014 10:12:34 +0200 Subject: cdc_subset: deal with a device that needs reset for timeout This device needs to be reset to recover from a timeout. Unfortunately this can be handled only at the level of the subdrivers. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller --- include/linux/usb/usbnet.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 0662e98fef72..26088feb6608 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -148,6 +148,9 @@ struct driver_info { struct sk_buff *(*tx_fixup)(struct usbnet *dev, struct sk_buff *skb, gfp_t flags); + /* recover from timeout */ + void (*recover)(struct usbnet *dev); + /* early initialization code, can sleep. This is for minidrivers * having 'subminidrivers' that need to do extra initialization * right after minidriver have initialized hardware. */ -- cgit v1.2.3 From 4972a74b888c6b52ca41fae6076786dbbeb746d5 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Tue, 15 Jul 2014 10:03:34 -0700 Subject: of: Split early_init_dt_scan into two parts MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Currently, early_init_dt_scan validates the header, sets the boot params, and scans for chosen/memory all in one function. Split this up into two separate functions (validation/setting boot params in one, scanning in another) to allow for additional setup between boot params and scanning the memory. Signed-off-by: Laura Abbott Tested-by: Andreas Färber [glikely: s/early_init_dt_scan_all/early_init_dt_scan_nodes/] Signed-off-by: Grant Likely --- include/linux/of_fdt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 05117899fcb4..ebb2449082fb 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -73,6 +73,8 @@ extern int early_init_dt_scan_root(unsigned long node, const char *uname, int depth, void *data); extern bool early_init_dt_scan(void *params); +extern bool early_init_dt_verify(void *params); +extern void early_init_dt_scan_nodes(void); extern const char *of_flat_dt_get_machine_name(void); extern const void *of_flat_dt_match_machine(const void *default_match, -- cgit v1.2.3 From 704033cee2e5b3c1c6eaf5bb398e465a9c3667b5 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Tue, 15 Jul 2014 10:03:35 -0700 Subject: of: Add memory limiting function for flattened devicetrees MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Buggy bootloaders may pass bogus memory entries in the devicetree. Add of_fdt_limit_memory to add an upper bound on the number of entries that can be present in the devicetree. Signed-off-by: Laura Abbott Tested-by: Andreas Färber Signed-off-by: Grant Likely --- include/linux/of_fdt.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index ebb2449082fb..0ff360d5b3b3 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -86,6 +86,7 @@ extern void unflatten_and_copy_device_tree(void); extern void early_init_devtree(void *); extern void early_get_first_memblock_info(void *, phys_addr_t *); extern u64 fdt_translate_address(const void *blob, int node_offset); +extern void of_fdt_limit_memory(int limit); #else /* CONFIG_OF_FLATTREE */ static inline void early_init_fdt_scan_reserved_mem(void) {} static inline const char *of_flat_dt_get_machine_name(void) { return NULL; } -- cgit v1.2.3 From b7dd0e350e0bd4c0fddcc9b8958342700b00b168 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Fri, 11 Jul 2014 16:42:34 +0100 Subject: x86/xen: safely map and unmap grant frames when in atomic context arch_gnttab_map_frames() and arch_gnttab_unmap_frames() are called in atomic context but were calling alloc_vm_area() which might sleep. Also, if a driver attempts to allocate a grant ref from an interrupt and the table needs expanding, then the CPU may already by in lazy MMU mode and apply_to_page_range() will BUG when it tries to re-enable lazy MMU mode. These two functions are only used in PV guests. Introduce arch_gnttab_init() to allocates the virtual address space in advance. Avoid the use of apply_to_page_range() by using saving and using the array of PTE addresses from the alloc_vm_area() call (which ensures that the required page tables are pre-allocated). Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk --- include/xen/grant_table.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h index a5af2a26d94f..5c1aba154b64 100644 --- a/include/xen/grant_table.h +++ b/include/xen/grant_table.h @@ -170,6 +170,7 @@ gnttab_set_unmap_op(struct gnttab_unmap_grant_ref *unmap, phys_addr_t addr, unmap->dev_bus_addr = 0; } +int arch_gnttab_init(unsigned long nr_shared, unsigned long nr_status); int arch_gnttab_map_shared(xen_pfn_t *frames, unsigned long nr_gframes, unsigned long max_nr_gframes, void **__shared); -- cgit v1.2.3 From 1d8fcba1de632d7a43349788ad534c5a32c5a44c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 30 Jul 2014 08:56:23 -0700 Subject: Revert "cdc_subset: deal with a device that needs reset for timeout" This reverts commit 20fbe3ae990fd54fc7d1f889d61958bc8b38f254. As reported by Stephen Rothwell, it causes compile failures in certain configurations: drivers/net/usb/cdc_subset.c:360:15: error: 'dummy_prereset' undeclared here (not in a function) .pre_reset = dummy_prereset, ^ drivers/net/usb/cdc_subset.c:361:16: error: 'dummy_postreset' undeclared here (not in a function) .post_reset = dummy_postreset, ^ Reported-by: Stephen Rothwell Acked-by: David Miller Cc: Oliver Neukum Signed-off-by: Linus Torvalds --- include/linux/usb/usbnet.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h index 26088feb6608..0662e98fef72 100644 --- a/include/linux/usb/usbnet.h +++ b/include/linux/usb/usbnet.h @@ -148,9 +148,6 @@ struct driver_info { struct sk_buff *(*tx_fixup)(struct usbnet *dev, struct sk_buff *skb, gfp_t flags); - /* recover from timeout */ - void (*recover)(struct usbnet *dev); - /* early initialization code, can sleep. This is for minidrivers * having 'subminidrivers' that need to do extra initialization * right after minidriver have initialized hardware. */ -- cgit v1.2.3 From 8f1d26d0e59b9676587c54578f976709b625d6e9 Mon Sep 17 00:00:00 2001 From: Atsushi Kumagai Date: Wed, 30 Jul 2014 16:08:39 -0700 Subject: kexec: export free_huge_page to VMCOREINFO PG_head_mask was added into VMCOREINFO to filter huge pages in b3acc56bfe1 ("kexec: save PG_head_mask in VMCOREINFO"), but makedumpfile still need another symbol to filter *hugetlbfs* pages. If a user hope to filter user pages, makedumpfile tries to exclude them by checking the condition whether the page is anonymous, but hugetlbfs pages aren't anonymous while they also be user pages. We know it's possible to detect them in the same way as PageHuge(), so we need the start address of free_huge_page(): int PageHuge(struct page *page) { if (!PageCompound(page)) return 0; page = compound_head(page); return get_compound_page_dtor(page) == free_huge_page; } For that reason, this patch changes free_huge_page() into public to export it to VMCOREINFO. Signed-off-by: Atsushi Kumagai Acked-by: Baoquan He Cc: Vivek Goyal Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hugetlb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 255cd5cc0754..a23c096b3080 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -80,6 +80,7 @@ int dequeue_hwpoisoned_huge_page(struct page *page); bool isolate_huge_page(struct page *page, struct list_head *list); void putback_active_hugepage(struct page *page); bool is_hugepage_active(struct page *page); +void free_huge_page(struct page *page); #ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud); -- cgit v1.2.3 From d7821953cfe9803c593a682320468ce2de862803 Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Tue, 29 Jul 2014 18:38:39 +0800 Subject: ASoC: wm8962: Let CODEC driver enable and disable its own MCLK snd_soc_open() will trigger pm_runtime resume() which will then enable the regulator and initialization. So we should make sure the MCLK is enabled before this resume(). Previously we let the machine driver get the clock and enable it in its probe(). However, considering about power saving, it'll be better to enable it when it's going to be used and disable it after using. So this patch just simply adds clk_get() and clk_enable() to WM8962 driver. Meanwhile, it marks clock pointer to NULL if no clock assigned to it so it will not break any current function. Signed-off-by: Nicolin Chen Signed-off-by: Mark Brown --- include/sound/wm8962.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/sound/wm8962.h b/include/sound/wm8962.h index 79e6d427b858..0af7c1674cbf 100644 --- a/include/sound/wm8962.h +++ b/include/sound/wm8962.h @@ -37,6 +37,7 @@ #define WM8962_GPIO_FN_MICSCD 22 struct wm8962_pdata { + struct clk *mclk; int gpio_base; u32 gpio_init[WM8962_MAX_GPIO]; -- cgit v1.2.3