Merge android-4.4-p.200 (903fbe7) into msm-4.4

* refs/heads/tmp-903fbe7
  Linux 4.4.200
  alarmtimer: Change remaining ENOTSUPP to EOPNOTSUPP
  ARM: fix the cockup in the previous patch
  ARM: ensure that processor vtables is not lost after boot
  ARM: spectre-v2: per-CPU vtables to work around big.Little systems
  ARM: add PROC_VTABLE and PROC_TABLE macros
  ARM: clean up per-processor check_bugs method call
  ARM: split out processor lookup
  ARM: make lookup_processor_type() non-__init
  ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc
  ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization
  ARM: 8795/1: spectre-v1.1: use put_user() for __put_user()
  ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit
  ARM: 8793/1: signal: replace __put_user_error with __put_user
  ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
  ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state
  ARM: 8789/1: signal: copy registers using __copy_to_user()
  ARM: spectre-v1: mitigate user accesses
  ARM: spectre-v1: use get_user() for __get_user()
  ARM: use __inttype() in get_user()
  ARM: oabi-compat: copy semops using __copy_from_user()
  ARM: vfp: use __copy_from_user() when restoring VFP state
  ARM: signal: copy registers using __copy_from_user()
  ARM: spectre-v1: fix syscall entry
  ARM: spectre-v1: add array_index_mask_nospec() implementation
  ARM: spectre-v1: add speculation barrier (csdb) macros
  ARM: spectre-v2: warn about incorrect context switching functions
  ARM: spectre-v2: add firmware based hardening
  ARM: spectre-v2: harden user aborts in kernel space
  ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit
  ARM: spectre-v2: harden branch predictor on context switches
  ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre
  ARM: bugs: add support for per-processor bug checking
  ARM: bugs: hook processor bug checking into SMP and suspend paths
  ARM: bugs: prepare processor bug infrastructure
  ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs
  arm/arm64: smccc-1.1: Handle function result as parameters
  arm/arm64: smccc-1.1: Make return values unsigned long
  arm/arm64: smccc: Add SMCCC-specific return codes
  arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
  arm/arm64: smccc: Make function identifiers an unsigned quantity
  firmware/psci: Expose SMCCC version through psci_ops
  firmware/psci: Expose PSCI conduit
  arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support
  arm/arm64: KVM: Advertise SMCCC v1.1
  ARM: Move system register accessors to asm/cp15.h
  ARM: uaccess: remove put_user() code duplication
  ARM: 8481/2: drivers: psci: replace psci firmware calls
  ARM: 8480/2: arm64: add implementation for arm-smccc
  ARM: 8479/2: add implementation for arm-smccc
  ARM: 8478/2: arm/arm64: add arm-smccc
  ARM: 8051/1: put_user: fix possible data corruption in put_user
  dmaengine: qcom: bam_dma: Fix resource leak
  net/flow_dissector: switch to siphash
  inet: stop leaking jiffies on the wire
  net/mlx4_core: Dynamically set guaranteed amount of counters per VF
  vxlan: check tun_info options_len properly
  net: add READ_ONCE() annotation in __skb_wait_for_more_packets()
  net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol()
  net: hisilicon: Fix ping latency when deal with high throughput
  net: fix sk_page_frag() recursion from memory reclaim
  dccp: do not leak jiffies on the wire
  cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs
  MIPS: bmips: mark exception vectors as char arrays
  of: unittest: fix memory leak in unittest_data_add
  scsi: target: core: Do not overwrite CDB byte 1
  perf kmem: Fix memory leak in compact_gfp_flags()
  scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE
  scsi: sni_53c710: fix compilation error
  ARM: mm: fix alignment handler faults under memory pressure
  ARM: dts: logicpd-torpedo-som: Remove twl_keypad
  ASoc: rockchip: i2s: Fix RPM imbalance
  regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
  regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone
  kbuild: add -fcf-protection=none when using retpoline flags
  UPSTREAM: HID: steam: fix deadlock with input devices.
  UPSTREAM: HID: steam: fix boot loop with bluetooth firmware
  UPSTREAM: HID: steam: remove input device when a hid client is running.
  UPSTREAM: HID: steam: use hid_device.driver_data instead of hid_set_drvdata()
  UPSTREAM: HID: steam: add missing fields in client initialization
  UPSTREAM: HID: steam: add battery device.
  UPSTREAM: HID: add driver for Valve Steam Controller
  UPSTREAM: HID: sony: Fix memory corruption issue on cleanup.
  UPSTREAM: HID: sony: Fix race condition between rumble and device remove.
  UPSTREAM: HID: sony: remove redundant check for -ve err
  UPSTREAM: HID: sony: Make sure to unregister sensors on failure
  UPSTREAM: HID: sony: Make DS4 bt poll interval adjustable
  UPSTREAM: HID: sony: Set proper bit flags on DS4 output report
  UPSTREAM: HID: sony: DS4 use brighter LED colors
  UPSTREAM: HID: sony: Improve navigation controller axis/button mapping
  UPSTREAM: HID: sony: Use DS3 MAC address as unique identifier on USB
  UPSTREAM: HID: sony: Perform duplicate device check earlier on
  UPSTREAM: HID: sony: Expose DS3 motion sensors through separate device
  UPSTREAM: HID: sony: Print error on failure to active DS3 / Navigation controllers
  UPSTREAM: HID: sony: DS3 comply to Linux gamepad spec
  UPSTREAM: HID: sony: Mark DS4 touchpad device as a pointer
  UPSTREAM: HID: sony: Support motion sensor calibration on dongle
  UPSTREAM: HID: sony: Make work handling more generic
  UPSTREAM: HID: sony: Treat the ds4 dongle as a separate device
  UPSTREAM: HID: sony: Remove report descriptor fixup for DS4
  UPSTREAM: HID: sony: Report hardware timestamp for DS4 sensor values
  UPSTREAM: HID: sony: Calibrate DS4 motion sensors
  UPSTREAM: HID: sony: Report DS4 motion sensors through a separate device
  UPSTREAM: HID: sony: Fix input device leak when connecting a DS4 twice using USB/BT
  UPSTREAM: HID: sony: Use LED_CORE_SUSPENDRESUME
  UPSTREAM: HID: sony: Ignore DS4 dongle reports when no device is connected
  UPSTREAM: HID: sony: Use DS4 MAC address as unique identifier on USB
  UPSTREAM: HID: sony: Fix error handling bug when touchpad registration fails
  UPSTREAM: HID: sony: Comply to Linux gamepad spec for DS4
  UPSTREAM: HID: sony: Make the DS4 touchpad a separate device
  UPSTREAM: HID: sony: Fix memory issue when connecting device using both Bluetooth and USB
  UPSTREAM: HID: sony: Adjust value range for motion sensors
  UPSTREAM: HID: sony: Handle multiple touch events input record
  UPSTREAM: HID: sony: Send ds4 output reports on output end-point
  UPSTREAM: HID: sony: Perform CRC check on bluetooth input packets
  UPSTREAM: HID: sony: Adjust HID report size name definitions
  UPSTREAM: HID: sony: Fix race condition in sony_probe
  UPSTREAM: HID: sony: Update copyright and add Dualshock 4 rate control note
  UPSTREAM: HID: sony: Defer the initial USB Sixaxis output report
  UPSTREAM: HID: sony: Relax duplicate checking for USB-only devices
  UPSTREAM: HID: sony: underscores are unnecessary for u8, u16, s32
  UPSTREAM: HID: sony: fix some warnings from scripts/checkpatch.pl
  UPSTREAM: HID: sony: fix errors from scripts/checkpatch.pl
  UPSTREAM: HID: sony: fix a typo in descriptors comments s/Joystik/Joystick/
  UPSTREAM: HID: sony: Fixup output reports for the nyko core controller
  UPSTREAM: HID: sony: Remove the size check for the Dualshock 4 HID Descriptor
  UPSTREAM: HID: sony: Save and restore the controller state on suspend and resume
  UPSTREAM: HID: sony: Refactor the output report sending functions

After resolving conflicts there is no effective change from this patch
  fs/dcache: move security_d_instantiate() behind attaching dentry to inode

Conflicts:
	fs/dcache.c
	include/linux/arm-smccc.h
	include/linux/psci.h

Change-Id: I092fea3b6c69f56639fdb9e511e011cbb326e2c7
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

3 files changed, 24 insertions, 30 deletions

diff --git a/net/core/datagram.c b/net/core/datagram.c
index d62af69ad844..ba8af8b55f1f 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -96,7 +96,7 @@ static int wait_for_more_packets(struct sock *sk, int *err, long *timeo_p,
 	if (error)
 		goto out_err;
 
-	if (sk->sk_receive_queue.prev != skb)
+	if (READ_ONCE(sk->sk_receive_queue.prev) != skb)
 		goto out;
 
 	/* Socket shut down? */
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 66428c0eb663..7e4e7deb2542 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -941,11 +941,13 @@ static int ethtool_reset(struct net_device *dev, char __user *useraddr)
 
 static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
 {
-	struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
+	struct ethtool_wolinfo wol;
 
 	if (!dev->ethtool_ops->get_wol)
 		return -EOPNOTSUPP;
 
+	memset(&wol, 0, sizeof(struct ethtool_wolinfo));
+	wol.cmd = ETHTOOL_GWOL;
 	dev->ethtool_ops->get_wol(dev, &wol);
 
 	if (copy_to_user(useraddr, &wol, sizeof(wol)))
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index fbb631004b43..b4f2c30e8313 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -541,45 +541,34 @@ out_bad:
 }
 EXPORT_SYMBOL(__skb_flow_dissect);
 
-static u32 hashrnd __read_mostly;
+static siphash_key_t hashrnd __read_mostly;
 static __always_inline void __flow_hash_secret_init(void)
 {
 	net_get_random_once(&hashrnd, sizeof(hashrnd));
 }
 
-static __always_inline u32 __flow_hash_words(const u32 *words, u32 length,
-					     u32 keyval)
+static const void *flow_keys_hash_start(const struct flow_keys *flow)
 {
-	return jhash2(words, length, keyval);
-}
-
-static inline const u32 *flow_keys_hash_start(const struct flow_keys *flow)
-{
-	const void *p = flow;
-
-	BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % sizeof(u32));
-	return (const u32 *)(p + FLOW_KEYS_HASH_OFFSET);
+	BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % SIPHASH_ALIGNMENT);
+	return &flow->FLOW_KEYS_HASH_START_FIELD;
 }
 
 static inline size_t flow_keys_hash_length(const struct flow_keys *flow)
 {
-	size_t diff = FLOW_KEYS_HASH_OFFSET + sizeof(flow->addrs);
-	BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32));
-	BUILD_BUG_ON(offsetof(typeof(*flow), addrs) !=
-		     sizeof(*flow) - sizeof(flow->addrs));
+	size_t len = offsetof(typeof(*flow), addrs) - FLOW_KEYS_HASH_OFFSET;
 
 	switch (flow->control.addr_type) {
 	case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
-		diff -= sizeof(flow->addrs.v4addrs);
+		len += sizeof(flow->addrs.v4addrs);
 		break;
 	case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
-		diff -= sizeof(flow->addrs.v6addrs);
+		len += sizeof(flow->addrs.v6addrs);
 		break;
 	case FLOW_DISSECTOR_KEY_TIPC_ADDRS:
-		diff -= sizeof(flow->addrs.tipcaddrs);
+		len += sizeof(flow->addrs.tipcaddrs);
 		break;
 	}
-	return (sizeof(*flow) - diff) / sizeof(u32);
+	return len;
 }
 
 __be32 flow_get_u32_src(const struct flow_keys *flow)
@@ -645,14 +634,15 @@ static inline void __flow_hash_consistentify(struct flow_keys *keys)
 	}
 }
 
-static inline u32 __flow_hash_from_keys(struct flow_keys *keys, u32 keyval)
+static inline u32 __flow_hash_from_keys(struct flow_keys *keys,
+					const siphash_key_t *keyval)
 {
 	u32 hash;
 
 	__flow_hash_consistentify(keys);
 
-	hash = __flow_hash_words(flow_keys_hash_start(keys),
-				 flow_keys_hash_length(keys), keyval);
+	hash = siphash(flow_keys_hash_start(keys),
+		       flow_keys_hash_length(keys), keyval);
 	if (!hash)
 		hash = 1;
 
@@ -662,12 +652,13 @@ static inline u32 __flow_hash_from_keys(struct flow_keys *keys, u32 keyval)
 u32 flow_hash_from_keys(struct flow_keys *keys)
 {
 	__flow_hash_secret_init();
-	return __flow_hash_from_keys(keys, hashrnd);
+	return __flow_hash_from_keys(keys, &hashrnd);
 }
 EXPORT_SYMBOL(flow_hash_from_keys);
 
 static inline u32 ___skb_get_hash(const struct sk_buff *skb,
-				  struct flow_keys *keys, u32 keyval)
+				  struct flow_keys *keys,
+				  const siphash_key_t *keyval)
 {
 	skb_flow_dissect_flow_keys(skb, keys,
 				   FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
@@ -715,7 +706,7 @@ u32 __skb_get_hash_symmetric(struct sk_buff *skb)
 			   NULL, 0, 0, 0,
 			   FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL);
 
-	return __flow_hash_from_keys(&keys, hashrnd);
+	return __flow_hash_from_keys(&keys, &hashrnd);
 }
 EXPORT_SYMBOL_GPL(__skb_get_hash_symmetric);
 
@@ -734,12 +725,13 @@ void __skb_get_hash(struct sk_buff *skb)
 
 	__flow_hash_secret_init();
 
-	__skb_set_sw_hash(skb, ___skb_get_hash(skb, &keys, hashrnd),
+	__skb_set_sw_hash(skb, ___skb_get_hash(skb, &keys, &hashrnd),
 			  flow_keys_have_l4(&keys));
 }
 EXPORT_SYMBOL(__skb_get_hash);
 
-__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb)
+__u32 skb_get_hash_perturb(const struct sk_buff *skb,
+			   const siphash_key_t *perturb)
 {
 	struct flow_keys keys;