Merge tag 'staging-4.15-rc1' into v4l_for_linus

There are some conflicts between staging and media trees,
as reported by Stephen Rothwell <sfr@canb.auug.org.au>.

So, merge from staging.

* tag 'staging-4.15-rc1': (775 commits)
  staging: lustre: add SPDX identifiers to all lustre files
  staging: greybus: Remove redundant license text
  staging: greybus: add SPDX identifiers to all greybus driver files
  staging: ccree: simplify ioread/iowrite
  staging: ccree: simplify registers access
  staging: ccree: simplify error handling logic
  staging: ccree: remove dead code
  staging: ccree: handle limiting of DMA masks
  staging: ccree: copy IV to DMAable memory
  staging: fbtft: remove redundant initialization of buf
  staging: sm750fb: Fix parameter mistake in poke32
  staging: wilc1000: Fix bssid buffer offset in Txq
  staging: fbtft: fb_ssd1331: fix mirrored display
  staging: android: Fix checkpatch.pl error
  staging: greybus: loopback: convert loopback to use generic async operations
  staging: greybus: operation: add private data with get/set accessors
  staging: greybus: loopback: Fix iteration count on async path
  staging: greybus: loopback: Hold per-connection mutex across operations
  staging: greybus/loopback: use ktime_get() for time intervals
  staging: fsl-dpaa2/eth: Extra headroom in RX buffers
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

25 files changed, 959 insertions, 64 deletions

diff --git a/include/linux/filter.h b/include/linux/filter.h
index d29e58fde364..818a0b26249e 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -728,7 +728,7 @@ void xdp_do_flush_map(void);
 void bpf_warn_invalid_xdp_action(u32 act);
 void bpf_warn_invalid_xdp_redirect(u32 ifindex);
 
-struct sock *do_sk_redirect_map(void);
+struct sock *do_sk_redirect_map(struct sk_buff *skb);
 
 #ifdef CONFIG_BPF_JIT
 extern int bpf_jit_enable;
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index fc7aae64dcde..331dc377c275 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -231,6 +231,7 @@ struct hid_sensor_common {
 	unsigned usage_id;
 	atomic_t data_ready;
 	atomic_t user_requested_state;
+	atomic_t runtime_pm_enable;
 	int poll_interval;
 	int raw_hystersis;
 	int latency_ms;
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 7b0fa8b5c120..f9bd6e8ab138 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -131,28 +131,39 @@ struct st_sensor_das {
 };
 
 /**
+ * struct st_sensor_int_drdy - ST sensor device drdy line parameters
+ * @addr: address of INT drdy register.
+ * @mask: mask to enable drdy line.
+ * @addr_od: address to enable/disable Open Drain on the INT line.
+ * @mask_od: mask to enable/disable Open Drain on the INT line.
+ */
+struct st_sensor_int_drdy {
+	u8 addr;
+	u8 mask;
+	u8 addr_od;
+	u8 mask_od;
+};
+
+/**
  * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
- * @addr: address of the register.
- * @mask_int1: mask to enable/disable IRQ on INT1 pin.
- * @mask_int2: mask to enable/disable IRQ on INT2 pin.
+ * struct int1 - data-ready configuration register for INT1 pin.
+ * struct int2 - data-ready configuration register for INT2 pin.
  * @addr_ihl: address to enable/disable active low on the INT lines.
  * @mask_ihl: mask to enable/disable active low on the INT lines.
- * @addr_od: address to enable/disable Open Drain on the INT lines.
- * @mask_od: mask to enable/disable Open Drain on the INT lines.
- * @addr_stat_drdy: address to read status of DRDY (data ready) interrupt
+ * struct stat_drdy - status register of DRDY (data ready) interrupt.
  * struct ig1 - represents the Interrupt Generator 1 of sensors.
  * @en_addr: address of the enable ig1 register.
  * @en_mask: mask to write the on/off value for enable.
  */
 struct st_sensor_data_ready_irq {
-	u8 addr;
-	u8 mask_int1;
-	u8 mask_int2;
+	struct st_sensor_int_drdy int1;
+	struct st_sensor_int_drdy int2;
 	u8 addr_ihl;
 	u8 mask_ihl;
-	u8 addr_od;
-	u8 mask_od;
-	u8 addr_stat_drdy;
+	struct {
+		u8 addr;
+		u8 mask;
+	} stat_drdy;
 	struct {
 		u8 en_addr;
 		u8 en_mask;
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index c380daa40c0e..20b61347ea58 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -365,12 +365,9 @@ unsigned int iio_get_time_res(const struct iio_dev *indio_dev);
 #define INDIO_MAX_RAW_ELEMENTS		4
 
 struct iio_trigger; /* forward declaration */
-struct iio_dev;
 
 /**
  * struct iio_info - constant information about device
- * @driver_module:	module structure used to ensure correct
- *			ownership of chrdevs etc
  * @event_attrs:	event control attributes
  * @attrs:		general purpose device attributes
  * @read_raw:		function to request a value from the device.
@@ -425,7 +422,6 @@ struct iio_dev;
  *			were flushed and there was an error.
  **/
 struct iio_info {
-	struct module			*driver_module;
 	const struct attribute_group	*event_attrs;
 	const struct attribute_group	*attrs;
 
@@ -518,6 +514,7 @@ struct iio_buffer_setup_ops {
 /**
  * struct iio_dev - industrial I/O device
  * @id:			[INTERN] used to identify device internally
+ * @driver_module:	[INTERN] used to make it harder to undercut users
  * @modes:		[DRIVER] operating modes supported by device
  * @currentmode:	[DRIVER] current operating mode
  * @dev:		[DRIVER] device structure, should be assigned a parent
@@ -558,6 +555,7 @@ struct iio_buffer_setup_ops {
  */
 struct iio_dev {
 	int				id;
+	struct module			*driver_module;
 
 	int				modes;
 	int				currentmode;
@@ -604,9 +602,34 @@ struct iio_dev {
 
 const struct iio_chan_spec
 *iio_find_channel_from_si(struct iio_dev *indio_dev, int si);
-int iio_device_register(struct iio_dev *indio_dev);
+/**
+ * iio_device_register() - register a device with the IIO subsystem
+ * @indio_dev:		Device structure filled by the device driver
+ **/
+#define iio_device_register(iio_dev) \
+	__iio_device_register((iio_dev), THIS_MODULE)
+int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod);
 void iio_device_unregister(struct iio_dev *indio_dev);
-int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev);
+/**
+ * devm_iio_device_register - Resource-managed iio_device_register()
+ * @dev:	Device to allocate iio_dev for
+ * @indio_dev:	Device structure filled by the device driver
+ *
+ * Managed iio_device_register.  The IIO device registered with this
+ * function is automatically unregistered on driver detach. This function
+ * calls iio_device_register() internally. Refer to that function for more
+ * information.
+ *
+ * If an iio_dev registered with this function needs to be unregistered
+ * separately, devm_iio_device_unregister() must be used.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+#define devm_iio_device_register(dev, indio_dev) \
+	__devm_iio_device_register((dev), (indio_dev), THIS_MODULE);
+int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
+			       struct module *this_mod);
 void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev);
 int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
 int iio_device_claim_direct_mode(struct iio_dev *indio_dev);
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index 7142d8d6e470..7d5e44518379 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -23,7 +23,6 @@ struct iio_trigger;
 
 /**
  * struct iio_trigger_ops - operations structure for an iio_trigger.
- * @owner:		used to monitor usage count of the trigger.
  * @set_trigger_state:	switch on/off the trigger on demand
  * @try_reenable:	function to reenable the trigger when the
  *			use count is zero (may be NULL)
@@ -34,7 +33,6 @@ struct iio_trigger;
  * instances of a given device.
  **/
 struct iio_trigger_ops {
-	struct module *owner;
 	int (*set_trigger_state)(struct iio_trigger *trig, bool state);
 	int (*try_reenable)(struct iio_trigger *trig);
 	int (*validate_device)(struct iio_trigger *trig,
@@ -62,6 +60,7 @@ struct iio_trigger_ops {
  **/
 struct iio_trigger {
 	const struct iio_trigger_ops	*ops;
+	struct module			*owner;
 	int				id;
 	const char			*name;
 	struct device			dev;
@@ -87,14 +86,14 @@ static inline struct iio_trigger *to_iio_trigger(struct device *d)
 
 static inline void iio_trigger_put(struct iio_trigger *trig)
 {
-	module_put(trig->ops->owner);
+	module_put(trig->owner);
 	put_device(&trig->dev);
 }
 
 static inline struct iio_trigger *iio_trigger_get(struct iio_trigger *trig)
 {
 	get_device(&trig->dev);
-	__module_get(trig->ops->owner);
+	__module_get(trig->owner);
 
 	return trig;
 }
@@ -127,10 +126,16 @@ static inline void *iio_trigger_get_drvdata(struct iio_trigger *trig)
  * iio_trigger_register() - register a trigger with the IIO core
  * @trig_info:	trigger to be registered
  **/
-int iio_trigger_register(struct iio_trigger *trig_info);
-
-int devm_iio_trigger_register(struct device *dev,
-			      struct iio_trigger *trig_info);
+#define iio_trigger_register(trig_info) \
+	__iio_trigger_register((trig_info), THIS_MODULE)
+int __iio_trigger_register(struct iio_trigger *trig_info,
+			   struct module *this_mod);
+
+#define devm_iio_trigger_register(dev, trig_info) \
+	__devm_iio_trigger_register((dev), (trig_info), THIS_MODULE)
+int __devm_iio_trigger_register(struct device *dev,
+				struct iio_trigger *trig_info,
+				struct module *this_mod);
 
 /**
  * iio_trigger_unregister() - unregister a trigger from the core
diff --git a/include/linux/input.h b/include/linux/input.h
index fb5e23c7ed98..7c7516eb7d76 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -234,6 +234,10 @@ struct input_dev {
 #error "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match"
 #endif
 
+#if INPUT_PROP_MAX != INPUT_DEVICE_ID_PROP_MAX
+#error "INPUT_PROP_MAX and INPUT_DEVICE_ID_PROP_MAX do not match"
+#endif
+
 #define INPUT_DEVICE_ID_MATCH_DEVICE \
 	(INPUT_DEVICE_ID_MATCH_BUS | INPUT_DEVICE_ID_MATCH_VENDOR | INPUT_DEVICE_ID_MATCH_PRODUCT)
 #define INPUT_DEVICE_ID_MATCH_DEVICE_AND_VERSION \
@@ -469,6 +473,9 @@ int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke);
 int input_set_keycode(struct input_dev *dev,
 		      const struct input_keymap_entry *ke);
 
+bool input_match_device_id(const struct input_dev *dev,
+			   const struct input_device_id *id);
+
 void input_enable_softrepeat(struct input_dev *dev, int delay, int period);
 
 extern struct class input_class;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index d4728bf6a537..5ad10948ea95 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -1009,7 +1009,7 @@ void irq_gc_mask_clr_bit(struct irq_data *d);
 void irq_gc_unmask_enable_reg(struct irq_data *d);
 void irq_gc_ack_set_bit(struct irq_data *d);
 void irq_gc_ack_clr_bit(struct irq_data *d);
-void irq_gc_mask_disable_reg_and_ack(struct irq_data *d);
+void irq_gc_mask_disable_and_ack_set(struct irq_data *d);
 void irq_gc_eoi(struct irq_data *d);
 int irq_gc_set_wake(struct irq_data *d, unsigned int on);
 
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 1ea576c8126f..14b74f22d43c 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -372,6 +372,8 @@
 #define GITS_BASER_ENTRY_SIZE_SHIFT		(48)
 #define GITS_BASER_ENTRY_SIZE(r)	((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 #define GITS_BASER_ENTRY_SIZE_MASK	GENMASK_ULL(52, 48)
+#define GITS_BASER_PHYS_52_to_48(phys)					\
+	(((phys) & GENMASK_ULL(47, 16)) | (((phys) >> 48) & 0xf) << 12)
 #define GITS_BASER_SHAREABILITY_SHIFT	(10)
 #define GITS_BASER_InnerShareable					\
 	GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
diff --git a/include/linux/key.h b/include/linux/key.h
index e315e16b6ff8..8a15cabe928d 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -138,6 +138,11 @@ struct key_restriction {
 	struct key_type *keytype;
 };
 
+enum key_state {
+	KEY_IS_UNINSTANTIATED,
+	KEY_IS_POSITIVE,		/* Positively instantiated */
+};
+
 /*****************************************************************************/
 /*
  * authentication token / access credential / keyring
@@ -169,6 +174,7 @@ struct key {
 						 * - may not match RCU dereferenced payload
 						 * - payload should contain own length
 						 */
+	short			state;		/* Key state (+) or rejection error (-) */
 
 #ifdef KEY_DEBUGGING
 	unsigned		magic;
@@ -176,18 +182,16 @@ struct key {
 #endif
 
 	unsigned long		flags;		/* status flags (change with bitops) */
-#define KEY_FLAG_INSTANTIATED	0	/* set if key has been instantiated */
-#define KEY_FLAG_DEAD		1	/* set if key type has been deleted */
-#define KEY_FLAG_REVOKED	2	/* set if key had been revoked */
-#define KEY_FLAG_IN_QUOTA	3	/* set if key consumes quota */
-#define KEY_FLAG_USER_CONSTRUCT	4	/* set if key is being constructed in userspace */
-#define KEY_FLAG_NEGATIVE	5	/* set if key is negative */
-#define KEY_FLAG_ROOT_CAN_CLEAR	6	/* set if key can be cleared by root without permission */
-#define KEY_FLAG_INVALIDATED	7	/* set if key has been invalidated */
-#define KEY_FLAG_BUILTIN	8	/* set if key is built in to the kernel */
-#define KEY_FLAG_ROOT_CAN_INVAL	9	/* set if key can be invalidated by root without permission */
-#define KEY_FLAG_KEEP		10	/* set if key should not be removed */
-#define KEY_FLAG_UID_KEYRING	11	/* set if key is a user or user session keyring */
+#define KEY_FLAG_DEAD		0	/* set if key type has been deleted */
+#define KEY_FLAG_REVOKED	1	/* set if key had been revoked */
+#define KEY_FLAG_IN_QUOTA	2	/* set if key consumes quota */
+#define KEY_FLAG_USER_CONSTRUCT	3	/* set if key is being constructed in userspace */
+#define KEY_FLAG_ROOT_CAN_CLEAR	4	/* set if key can be cleared by root without permission */
+#define KEY_FLAG_INVALIDATED	5	/* set if key has been invalidated */
+#define KEY_FLAG_BUILTIN	6	/* set if key is built in to the kernel */
+#define KEY_FLAG_ROOT_CAN_INVAL	7	/* set if key can be invalidated by root without permission */
+#define KEY_FLAG_KEEP		8	/* set if key should not be removed */
+#define KEY_FLAG_UID_KEYRING	9	/* set if key is a user or user session keyring */
 
 	/* the key type and key description string
 	 * - the desc is used to match a key against search criteria
@@ -213,7 +217,6 @@ struct key {
 			struct list_head name_link;
 			struct assoc_array keys;
 		};
-		int reject_error;
 	};
 
 	/* This is set on a keyring to restrict the addition of a link to a key
@@ -353,17 +356,27 @@ extern void key_set_timeout(struct key *, unsigned);
 #define	KEY_NEED_SETATTR 0x20	/* Require permission to change attributes */
 #define	KEY_NEED_ALL	0x3f	/* All the above permissions */
 
+static inline short key_read_state(const struct key *key)
+{
+	/* Barrier versus mark_key_instantiated(). */
+	return smp_load_acquire(&key->state);
+}
+
 /**
- * key_is_instantiated - Determine if a key has been positively instantiated
+ * key_is_positive - Determine if a key has been positively instantiated
  * @key: The key to check.
  *
  * Return true if the specified key has been positively instantiated, false
  * otherwise.
  */
-static inline bool key_is_instantiated(const struct key *key)
+static inline bool key_is_positive(const struct key *key)
+{
+	return key_read_state(key) == KEY_IS_POSITIVE;
+}
+
+static inline bool key_is_negative(const struct key *key)
 {
-	return test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
-		!test_bit(KEY_FLAG_NEGATIVE, &key->flags);
+	return key_read_state(key) < 0;
 }
 
 #define dereference_key_rcu(KEY)					\
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index 0d3f14fd2621..4773145246ed 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -31,8 +31,8 @@ struct mbus_dram_target_info
 	struct mbus_dram_window {
 		u8	cs_index;
 		u8	mbus_attr;
-		u32	base;
-		u32	size;
+		u64	base;
+		u64	size;
 	} cs[4];
 };
 
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 46f4ecf5479a..1861ea8dba77 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -445,6 +445,9 @@ struct mm_struct {
 	unsigned long flags; /* Must use atomic bitops to access the bits */
 
 	struct core_state *core_state; /* coredumping support */
+#ifdef CONFIG_MEMBARRIER
+	atomic_t membarrier_state;
+#endif
 #ifdef CONFIG_AIO
 	spinlock_t			ioctx_lock;
 	struct kioctx_table __rcu	*ioctx_table;
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 694cebb50f72..2657f9f51536 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -293,6 +293,7 @@ struct pcmcia_device_id {
 #define INPUT_DEVICE_ID_SND_MAX		0x07
 #define INPUT_DEVICE_ID_FF_MAX		0x7f
 #define INPUT_DEVICE_ID_SW_MAX		0x0f
+#define INPUT_DEVICE_ID_PROP_MAX	0x1f
 
 #define INPUT_DEVICE_ID_MATCH_BUS	1
 #define INPUT_DEVICE_ID_MATCH_VENDOR	2
@@ -308,6 +309,7 @@ struct pcmcia_device_id {
 #define INPUT_DEVICE_ID_MATCH_SNDBIT	0x0400
 #define INPUT_DEVICE_ID_MATCH_FFBIT	0x0800
 #define INPUT_DEVICE_ID_MATCH_SWBIT	0x1000
+#define INPUT_DEVICE_ID_MATCH_PROPBIT	0x2000
 
 struct input_device_id {
 
@@ -327,6 +329,7 @@ struct input_device_id {
 	kernel_ulong_t sndbit[INPUT_DEVICE_ID_SND_MAX / BITS_PER_LONG + 1];
 	kernel_ulong_t ffbit[INPUT_DEVICE_ID_FF_MAX / BITS_PER_LONG + 1];
 	kernel_ulong_t swbit[INPUT_DEVICE_ID_SW_MAX / BITS_PER_LONG + 1];
+	kernel_ulong_t propbit[INPUT_DEVICE_ID_PROP_MAX / BITS_PER_LONG + 1];
 
 	kernel_ulong_t driver_info;
 };
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f535779d9dc1..2eaac7d75af4 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3694,6 +3694,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 				    unsigned char name_assign_type,
 				    void (*setup)(struct net_device *),
 				    unsigned int txqs, unsigned int rxqs);
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+		       const char *name);
+
 #define alloc_netdev(sizeof_priv, name, name_assign_type, setup) \
 	alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, 1, 1)
 
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index b1fd8bf85fdc..2bea1d5e9930 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -276,7 +276,7 @@ static inline void list_splice_tail_init_rcu(struct list_head *list,
 #define list_entry_rcu(ptr, type, member) \
 	container_of(lockless_dereference(ptr), type, member)
 
-/**
+/*
  * Where are list_empty_rcu() and list_first_entry_rcu()?
  *
  * Implementing those functions following their counterparts list_empty() and
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index de50d8a4cf41..1a9f70d44af9 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -523,7 +523,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  * Return the value of the specified RCU-protected pointer, but omit
  * both the smp_read_barrier_depends() and the READ_ONCE().  This
  * is useful in cases where update-side locks prevent the value of the
- * pointer from changing.  Please note that this primitive does -not-
+ * pointer from changing.  Please note that this primitive does *not*
  * prevent the compiler from repeating this reference or combining it
  * with other references, so it should not be used without protection
  * of appropriate locks.
@@ -568,7 +568,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  * is handed off from RCU to some other synchronization mechanism, for
  * example, reference counting or locking.  In C11, it would map to
  * kill_dependency().  It could be used as follows:
- *
+ * ``
  *	rcu_read_lock();
  *	p = rcu_dereference(gp);
  *	long_lived = is_long_lived(p);
@@ -579,6 +579,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  *			p = rcu_pointer_handoff(p);
  *	}
  *	rcu_read_unlock();
+ *``
  */
 #define rcu_pointer_handoff(p) (p)
 
@@ -778,18 +779,21 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
 
 /**
  * RCU_INIT_POINTER() - initialize an RCU protected pointer
+ * @p: The pointer to be initialized.
+ * @v: The value to initialized the pointer to.
  *
  * Initialize an RCU-protected pointer in special cases where readers
  * do not need ordering constraints on the CPU or the compiler.  These
  * special cases are:
  *
- * 1.	This use of RCU_INIT_POINTER() is NULLing out the pointer -or-
+ * 1.	This use of RCU_INIT_POINTER() is NULLing out the pointer *or*
  * 2.	The caller has taken whatever steps are required to prevent
- *	RCU readers from concurrently accessing this pointer -or-
+ *	RCU readers from concurrently accessing this pointer *or*
  * 3.	The referenced data structure has already been exposed to
- *	readers either at compile time or via rcu_assign_pointer() -and-
- *	a.	You have not made -any- reader-visible changes to
- *		this structure since then -or-
+ *	readers either at compile time or via rcu_assign_pointer() *and*
+ *
+ *	a.	You have not made *any* reader-visible changes to
+ *		this structure since then *or*
  *	b.	It is OK for readers accessing this structure from its
  *		new location to see the old state of the structure.  (For
  *		example, the changes were to statistical counters or to
@@ -805,7 +809,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
  * by a single external-to-structure RCU-protected pointer, then you may
  * use RCU_INIT_POINTER() to initialize the internal RCU-protected
  * pointers, but you must use rcu_assign_pointer() to initialize the
- * external-to-structure pointer -after- you have completely initialized
+ * external-to-structure pointer *after* you have completely initialized
  * the reader-accessible portions of the linked structure.
  *
  * Note that unlike rcu_assign_pointer(), RCU_INIT_POINTER() provides no
@@ -819,6 +823,8 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
 
 /**
  * RCU_POINTER_INITIALIZER() - statically initialize an RCU protected pointer
+ * @p: The pointer to be initialized.
+ * @v: The value to initialized the pointer to.
  *
  * GCC-style initialization for an RCU-protected pointer in a structure field.
  */
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index ae53e413fb13..ab9bf7b73954 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -211,4 +211,20 @@ static inline void memalloc_noreclaim_restore(unsigned int flags)
 	current->flags = (current->flags & ~PF_MEMALLOC) | flags;
 }
 
+#ifdef CONFIG_MEMBARRIER
+enum {
+	MEMBARRIER_STATE_PRIVATE_EXPEDITED_READY	= (1U << 0),
+	MEMBARRIER_STATE_SWITCH_MM			= (1U << 1),
+};
+
+static inline void membarrier_execve(struct task_struct *t)
+{
+	atomic_set(&t->mm->membarrier_state, 0);
+}
+#else
+static inline void membarrier_execve(struct task_struct *t)
+{
+}
+#endif
+
 #endif /* _LINUX_SCHED_MM_H */
diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 39af9bc0f653..62be8966e837 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -78,6 +78,7 @@ void synchronize_srcu(struct srcu_struct *sp);
 
 /**
  * srcu_read_lock_held - might we be in SRCU read-side critical section?
+ * @sp: The srcu_struct structure to check
  *
  * If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an SRCU
  * read-side critical section.  In absence of CONFIG_DEBUG_LOCK_ALLOC,
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h
new file mode 100644
index 000000000000..e00051ced806
--- /dev/null
+++ b/include/linux/usb/pd.h
@@ -0,0 +1,298 @@
+/*
+ * Copyright 2015-2017 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_USB_PD_H
+#define __LINUX_USB_PD_H
+
+#include <linux/types.h>
+#include <linux/usb/typec.h>
+
+/* USB PD Messages */
+enum pd_ctrl_msg_type {
+	/* 0 Reserved */
+	PD_CTRL_GOOD_CRC = 1,
+	PD_CTRL_GOTO_MIN = 2,
+	PD_CTRL_ACCEPT = 3,
+	PD_CTRL_REJECT = 4,
+	PD_CTRL_PING = 5,
+	PD_CTRL_PS_RDY = 6,
+	PD_CTRL_GET_SOURCE_CAP = 7,
+	PD_CTRL_GET_SINK_CAP = 8,
+	PD_CTRL_DR_SWAP = 9,
+	PD_CTRL_PR_SWAP = 10,
+	PD_CTRL_VCONN_SWAP = 11,
+	PD_CTRL_WAIT = 12,
+	PD_CTRL_SOFT_RESET = 13,
+	/* 14-15 Reserved */
+};
+
+enum pd_data_msg_type {
+	/* 0 Reserved */
+	PD_DATA_SOURCE_CAP = 1,
+	PD_DATA_REQUEST = 2,
+	PD_DATA_BIST = 3,
+	PD_DATA_SINK_CAP = 4,
+	/* 5-14 Reserved */
+	PD_DATA_VENDOR_DEF = 15,
+};
+
+#define PD_REV10	0x0
+#define PD_REV20	0x1
+
+#define PD_HEADER_CNT_SHIFT	12
+#define PD_HEADER_CNT_MASK	0x7
+#define PD_HEADER_ID_SHIFT	9
+#define PD_HEADER_ID_MASK	0x7
+#define PD_HEADER_PWR_ROLE	BIT(8)
+#define PD_HEADER_REV_SHIFT	6
+#define PD_HEADER_REV_MASK	0x3
+#define PD_HEADER_DATA_ROLE	BIT(5)
+#define PD_HEADER_TYPE_SHIFT	0
+#define PD_HEADER_TYPE_MASK	0xf
+
+#define PD_HEADER(type, pwr, data, id, cnt)				\
+	((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) |	\
+	 ((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) |		\
+	 ((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) |		\
+	 (PD_REV20 << PD_HEADER_REV_SHIFT) |				\
+	 (((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) |		\
+	 (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT))
+
+#define PD_HEADER_LE(type, pwr, data, id, cnt) \
+	cpu_to_le16(PD_HEADER((type), (pwr), (data), (id), (cnt)))
+
+static inline unsigned int pd_header_cnt(u16 header)
+{
+	return (header >> PD_HEADER_CNT_SHIFT) & PD_HEADER_CNT_MASK;
+}
+
+static inline unsigned int pd_header_cnt_le(__le16 header)
+{
+	return pd_header_cnt(le16_to_cpu(header));
+}
+
+static inline unsigned int pd_header_type(u16 header)
+{
+	return (header >> PD_HEADER_TYPE_SHIFT) & PD_HEADER_TYPE_MASK;
+}
+
+static inline unsigned int pd_header_type_le(__le16 header)
+{
+	return pd_header_type(le16_to_cpu(header));
+}
+
+static inline unsigned int pd_header_msgid(u16 header)
+{
+	return (header >> PD_HEADER_ID_SHIFT) & PD_HEADER_ID_MASK;
+}
+
+static inline unsigned int pd_header_msgid_le(__le16 header)
+{
+	return pd_header_msgid(le16_to_cpu(header));
+}
+
+#define PD_MAX_PAYLOAD		7
+
+/**
+ * struct pd_message - PD message as seen on wire
+ * @header:	PD message header
+ * @payload:	PD message payload
+ */
+struct pd_message {
+	__le16 header;
+	__le32 payload[PD_MAX_PAYLOAD];
+} __packed;
+
+/* PDO: Power Data Object */
+#define PDO_MAX_OBJECTS		7
+
+enum pd_pdo_type {
+	PDO_TYPE_FIXED = 0,
+	PDO_TYPE_BATT = 1,
+	PDO_TYPE_VAR = 2,
+};
+
+#define PDO_TYPE_SHIFT		30
+#define PDO_TYPE_MASK		0x3
+
+#define PDO_TYPE(t)	((t) << PDO_TYPE_SHIFT)
+
+#define PDO_VOLT_MASK		0x3ff
+#define PDO_CURR_MASK		0x3ff
+#define PDO_PWR_MASK		0x3ff
+
+#define PDO_FIXED_DUAL_ROLE	BIT(29)	/* Power role swap supported */
+#define PDO_FIXED_SUSPEND	BIT(28) /* USB Suspend supported (Source) */
+#define PDO_FIXED_HIGHER_CAP	BIT(28) /* Requires more than vSafe5V (Sink) */
+#define PDO_FIXED_EXTPOWER	BIT(27) /* Externally powered */
+#define PDO_FIXED_USB_COMM	BIT(26) /* USB communications capable */
+#define PDO_FIXED_DATA_SWAP	BIT(25) /* Data role swap supported */
+#define PDO_FIXED_VOLT_SHIFT	10	/* 50mV units */
+#define PDO_FIXED_CURR_SHIFT	0	/* 10mA units */
+
+#define PDO_FIXED_VOLT(mv)	((((mv) / 50) & PDO_VOLT_MASK) << PDO_FIXED_VOLT_SHIFT)
+#define PDO_FIXED_CURR(ma)	((((ma) / 10) & PDO_CURR_MASK) << PDO_FIXED_CURR_SHIFT)
+
+#define PDO_FIXED(mv, ma, flags)			\
+	(PDO_TYPE(PDO_TYPE_FIXED) | (flags) |		\
+	 PDO_FIXED_VOLT(mv) | PDO_FIXED_CURR(ma))
+
+#define PDO_BATT_MAX_VOLT_SHIFT	20	/* 50mV units */
+#define PDO_BATT_MIN_VOLT_SHIFT	10	/* 50mV units */
+#define PDO_BATT_MAX_PWR_SHIFT	0	/* 250mW units */
+
+#define PDO_BATT_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MIN_VOLT_SHIFT)
+#define PDO_BATT_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_BATT_MAX_VOLT_SHIFT)
+#define PDO_BATT_MAX_POWER(mw) ((((mw) / 250) & PDO_PWR_MASK) << PDO_BATT_MAX_PWR_SHIFT)
+
+#define PDO_BATT(min_mv, max_mv, max_mw)			\
+	(PDO_TYPE(PDO_TYPE_BATT) | PDO_BATT_MIN_VOLT(min_mv) |	\
+	 PDO_BATT_MAX_VOLT(max_mv) | PDO_BATT_MAX_POWER(max_mw))
+
+#define PDO_VAR_MAX_VOLT_SHIFT	20	/* 50mV units */
+#define PDO_VAR_MIN_VOLT_SHIFT	10	/* 50mV units */
+#define PDO_VAR_MAX_CURR_SHIFT	0	/* 10mA units */
+
+#define PDO_VAR_MIN_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MIN_VOLT_SHIFT)
+#define PDO_VAR_MAX_VOLT(mv) ((((mv) / 50) & PDO_VOLT_MASK) << PDO_VAR_MAX_VOLT_SHIFT)
+#define PDO_VAR_MAX_CURR(ma) ((((ma) / 10) & PDO_CURR_MASK) << PDO_VAR_MAX_CURR_SHIFT)
+
+#define PDO_VAR(min_mv, max_mv, max_ma)				\
+	(PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) |	\
+	 PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
+
+static inline enum pd_pdo_type pdo_type(u32 pdo)
+{
+	return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK;
+}
+
+static inline unsigned int pdo_fixed_voltage(u32 pdo)
+{
+	return ((pdo >> PDO_FIXED_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
+}
+
+static inline unsigned int pdo_min_voltage(u32 pdo)
+{
+	return ((pdo >> PDO_VAR_MIN_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
+}
+
+static inline unsigned int pdo_max_voltage(u32 pdo)
+{
+	return ((pdo >> PDO_VAR_MAX_VOLT_SHIFT) & PDO_VOLT_MASK) * 50;
+}
+
+static inline unsigned int pdo_max_current(u32 pdo)
+{
+	return ((pdo >> PDO_VAR_MAX_CURR_SHIFT) & PDO_CURR_MASK) * 10;
+}
+
+static inline unsigned int pdo_max_power(u32 pdo)
+{
+	return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250;
+}
+
+/* RDO: Request Data Object */
+#define RDO_OBJ_POS_SHIFT	28
+#define RDO_OBJ_POS_MASK	0x7
+#define RDO_GIVE_BACK		BIT(27)	/* Supports reduced operating current */
+#define RDO_CAP_MISMATCH	BIT(26) /* Not satisfied by source caps */
+#define RDO_USB_COMM		BIT(25) /* USB communications capable */
+#define RDO_NO_SUSPEND		BIT(24) /* USB Suspend not supported */
+
+#define RDO_PWR_MASK			0x3ff
+#define RDO_CURR_MASK			0x3ff
+
+#define RDO_FIXED_OP_CURR_SHIFT		10
+#define RDO_FIXED_MAX_CURR_SHIFT	0
+
+#define RDO_OBJ(idx) (((idx) & RDO_OBJ_POS_MASK) << RDO_OBJ_POS_SHIFT)
+
+#define PDO_FIXED_OP_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_OP_CURR_SHIFT)
+#define PDO_FIXED_MAX_CURR(ma) ((((ma) / 10) & RDO_CURR_MASK) << RDO_FIXED_MAX_CURR_SHIFT)
+
+#define RDO_FIXED(idx, op_ma, max_ma, flags)			\
+	(RDO_OBJ(idx) | (flags) |				\
+	 PDO_FIXED_OP_CURR(op_ma) | PDO_FIXED_MAX_CURR(max_ma))
+
+#define RDO_BATT_OP_PWR_SHIFT		10	/* 250mW units */
+#define RDO_BATT_MAX_PWR_SHIFT		0	/* 250mW units */
+
+#define RDO_BATT_OP_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_OP_PWR_SHIFT)
+#define RDO_BATT_MAX_PWR(mw) ((((mw) / 250) & RDO_PWR_MASK) << RDO_BATT_MAX_PWR_SHIFT)
+
+#define RDO_BATT(idx, op_mw, max_mw, flags)			\
+	(RDO_OBJ(idx) | (flags) |				\
+	 RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw))
+
+static inline unsigned int rdo_index(u32 rdo)
+{
+	return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK;
+}
+
+static inline unsigned int rdo_op_current(u32 rdo)
+{
+	return ((rdo >> RDO_FIXED_OP_CURR_SHIFT) & RDO_CURR_MASK) * 10;
+}
+
+static inline unsigned int rdo_max_current(u32 rdo)
+{
+	return ((rdo >> RDO_FIXED_MAX_CURR_SHIFT) &
+		RDO_CURR_MASK) * 10;
+}
+
+static inline unsigned int rdo_op_power(u32 rdo)
+{
+	return ((rdo >> RDO_BATT_OP_PWR_SHIFT) & RDO_PWR_MASK) * 250;
+}
+
+static inline unsigned int rdo_max_power(u32 rdo)
+{
+	return ((rdo >> RDO_BATT_MAX_PWR_SHIFT) & RDO_PWR_MASK) * 250;
+}
+
+/* USB PD timers and counters */
+#define PD_T_NO_RESPONSE	5000	/* 4.5 - 5.5 seconds */
+#define PD_T_DB_DETECT		10000	/* 10 - 15 seconds */
+#define PD_T_SEND_SOURCE_CAP	150	/* 100 - 200 ms */
+#define PD_T_SENDER_RESPONSE	60	/* 24 - 30 ms, relaxed */
+#define PD_T_SOURCE_ACTIVITY	45
+#define PD_T_SINK_ACTIVITY	135
+#define PD_T_SINK_WAIT_CAP	240
+#define PD_T_PS_TRANSITION	500
+#define PD_T_SRC_TRANSITION	35
+#define PD_T_DRP_SNK		40
+#define PD_T_DRP_SRC		30
+#define PD_T_PS_SOURCE_OFF	920
+#define PD_T_PS_SOURCE_ON	480
+#define PD_T_PS_HARD_RESET	30
+#define PD_T_SRC_RECOVER	760
+#define PD_T_SRC_RECOVER_MAX	1000
+#define PD_T_SRC_TURN_ON	275
+#define PD_T_SAFE_0V		650
+#define PD_T_VCONN_SOURCE_ON	100
+#define PD_T_SINK_REQUEST	100	/* 100 ms minimum */
+#define PD_T_ERROR_RECOVERY	100	/* minimum 25 is insufficient */
+#define PD_T_SRCSWAPSTDBY      625     /* Maximum of 650ms */
+#define PD_T_NEWSRC            250     /* Maximum of 275ms */
+
+#define PD_T_DRP_TRY		100	/* 75 - 150 ms */
+#define PD_T_DRP_TRYWAIT	600	/* 400 - 800 ms */
+
+#define PD_T_CC_DEBOUNCE	200	/* 100 - 200 ms */
+#define PD_T_PD_DEBOUNCE	20	/* 10 - 20 ms */
+
+#define PD_N_CAPS_COUNT		(PD_T_NO_RESPONSE / PD_T_SEND_SOURCE_CAP)
+#define PD_N_HARD_RESET_COUNT	2
+
+#endif /* __LINUX_USB_PD_H */
diff --git a/include/linux/usb/pd_bdo.h b/include/linux/usb/pd_bdo.h
new file mode 100644
index 000000000000..90b94d9fea5d
--- /dev/null
+++ b/include/linux/usb/pd_bdo.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2015-2017 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_USB_PD_BDO_H
+#define __LINUX_USB_PD_BDO_H
+
+/* BDO : BIST Data Object */
+#define BDO_MODE_RECV		(0 << 28)
+#define BDO_MODE_TRANSMIT	(1 << 28)
+#define BDO_MODE_COUNTERS	(2 << 28)
+#define BDO_MODE_CARRIER0	(3 << 28)
+#define BDO_MODE_CARRIER1	(4 << 28)
+#define BDO_MODE_CARRIER2	(5 << 28)
+#define BDO_MODE_CARRIER3	(6 << 28)
+#define BDO_MODE_EYE		(7 << 28)
+#define BDO_MODE_TESTDATA	(8 << 28)
+
+#define BDO_MODE_MASK(mode)	((mode) & 0xf0000000)
+
+#endif
diff --git a/include/linux/usb/pd_vdo.h b/include/linux/usb/pd_vdo.h
new file mode 100644
index 000000000000..d92259f8de0a
--- /dev/null
+++ b/include/linux/usb/pd_vdo.h
@@ -0,0 +1,251 @@
+/*
+ * Copyright 2015-2017 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_USB_PD_VDO_H
+#define __LINUX_USB_PD_VDO_H
+
+#include "pd.h"
+
+/*
+ * VDO : Vendor Defined Message Object
+ * VDM object is minimum of VDM header + 6 additional data objects.
+ */
+
+#define VDO_MAX_OBJECTS		6
+#define VDO_MAX_SIZE		(VDO_MAX_OBJECTS + 1)
+
+/*
+ * VDM header
+ * ----------
+ * <31:16>  :: SVID
+ * <15>     :: VDM type ( 1b == structured, 0b == unstructured )
+ * <14:13>  :: Structured VDM version (can only be 00 == 1.0 currently)
+ * <12:11>  :: reserved
+ * <10:8>   :: object position (1-7 valid ... used for enter/exit mode only)
+ * <7:6>    :: command type (SVDM only?)
+ * <5>      :: reserved (SVDM), command type (UVDM)
+ * <4:0>    :: command
+ */
+#define VDO(vid, type, custom)				\
+	(((vid) << 16) |				\
+	 ((type) << 15) |				\
+	 ((custom) & 0x7FFF))
+
+#define VDO_SVDM_TYPE		(1 << 15)
+#define VDO_SVDM_VERS(x)	((x) << 13)
+#define VDO_OPOS(x)		((x) << 8)
+#define VDO_CMDT(x)		((x) << 6)
+#define VDO_OPOS_MASK		VDO_OPOS(0x7)
+#define VDO_CMDT_MASK		VDO_CMDT(0x3)
+
+#define CMDT_INIT		0
+#define CMDT_RSP_ACK		1
+#define CMDT_RSP_NAK		2
+#define CMDT_RSP_BUSY		3
+
+/* reserved for SVDM ... for Google UVDM */
+#define VDO_SRC_INITIATOR	(0 << 5)
+#define VDO_SRC_RESPONDER	(1 << 5)
+
+#define CMD_DISCOVER_IDENT	1
+#define CMD_DISCOVER_SVID	2
+#define CMD_DISCOVER_MODES	3
+#define CMD_ENTER_MODE		4
+#define CMD_EXIT_MODE		5
+#define CMD_ATTENTION		6
+
+#define VDO_CMD_VENDOR(x)    (((10 + (x)) & 0x1f))
+
+/* ChromeOS specific commands */
+#define VDO_CMD_VERSION		VDO_CMD_VENDOR(0)
+#define VDO_CMD_SEND_INFO	VDO_CMD_VENDOR(1)
+#define VDO_CMD_READ_INFO	VDO_CMD_VENDOR(2)
+#define VDO_CMD_REBOOT		VDO_CMD_VENDOR(5)
+#define VDO_CMD_FLASH_ERASE	VDO_CMD_VENDOR(6)
+#define VDO_CMD_FLASH_WRITE	VDO_CMD_VENDOR(7)
+#define VDO_CMD_ERASE_SIG	VDO_CMD_VENDOR(8)
+#define VDO_CMD_PING_ENABLE	VDO_CMD_VENDOR(10)
+#define VDO_CMD_CURRENT		VDO_CMD_VENDOR(11)
+#define VDO_CMD_FLIP		VDO_CMD_VENDOR(12)
+#define VDO_CMD_GET_LOG		VDO_CMD_VENDOR(13)
+#define VDO_CMD_CCD_EN		VDO_CMD_VENDOR(14)
+
+#define PD_VDO_VID(vdo)		((vdo) >> 16)
+#define PD_VDO_SVDM(vdo)	(((vdo) >> 15) & 1)
+#define PD_VDO_OPOS(vdo)	(((vdo) >> 8) & 0x7)
+#define PD_VDO_CMD(vdo)		((vdo) & 0x1f)
+#define PD_VDO_CMDT(vdo)	(((vdo) >> 6) & 0x3)
+
+/*
+ * SVDM Identity request -> response
+ *
+ * Request is simply properly formatted SVDM header
+ *
+ * Response is 4 data objects:
+ * [0] :: SVDM header
+ * [1] :: Identitiy header
+ * [2] :: Cert Stat VDO
+ * [3] :: (Product | Cable) VDO
+ * [4] :: AMA VDO
+ *
+ */
+#define VDO_INDEX_HDR		0
+#define VDO_INDEX_IDH		1
+#define VDO_INDEX_CSTAT		2
+#define VDO_INDEX_CABLE		3
+#define VDO_INDEX_PRODUCT	3
+#define VDO_INDEX_AMA		4
+
+/*
+ * SVDM Identity Header
+ * --------------------
+ * <31>     :: data capable as a USB host
+ * <30>     :: data capable as a USB device
+ * <29:27>  :: product type
+ * <26>     :: modal operation supported (1b == yes)
+ * <25:16>  :: Reserved, Shall be set to zero
+ * <15:0>   :: USB-IF assigned VID for this cable vendor
+ */
+#define IDH_PTYPE_UNDEF		0
+#define IDH_PTYPE_HUB		1
+#define IDH_PTYPE_PERIPH	2
+#define IDH_PTYPE_PCABLE	3
+#define IDH_PTYPE_ACABLE	4
+#define IDH_PTYPE_AMA		5
+
+#define VDO_IDH(usbh, usbd, ptype, is_modal, vid)		\
+	((usbh) << 31 | (usbd) << 30 | ((ptype) & 0x7) << 27	\
+	 | (is_modal) << 26 | ((vid) & 0xffff))
+
+#define PD_IDH_PTYPE(vdo)	(((vdo) >> 27) & 0x7)
+#define PD_IDH_VID(vdo)		((vdo) & 0xffff)
+#define PD_IDH_MODAL_SUPP(vdo)	((vdo) & (1 << 26))
+
+/*
+ * Cert Stat VDO
+ * -------------
+ * <31:0>  : USB-IF assigned XID for this cable
+ */
+#define PD_CSTAT_XID(vdo)	(vdo)
+
+/*
+ * Product VDO
+ * -----------
+ * <31:16> : USB Product ID
+ * <15:0>  : USB bcdDevice
+ */
+#define VDO_PRODUCT(pid, bcd)	(((pid) & 0xffff) << 16 | ((bcd) & 0xffff))
+#define PD_PRODUCT_PID(vdo)	(((vdo) >> 16) & 0xffff)
+
+/*
+ * Cable VDO
+ * ---------
+ * <31:28> :: Cable HW version
+ * <27:24> :: Cable FW version
+ * <23:20> :: Reserved, Shall be set to zero
+ * <19:18> :: type-C to Type-A/B/C (00b == A, 01 == B, 10 == C)
+ * <17>    :: Type-C to Plug/Receptacle (0b == plug, 1b == receptacle)
+ * <16:13> :: cable latency (0001 == <10ns(~1m length))
+ * <12:11> :: cable termination type (11b == both ends active VCONN req)
+ * <10>    :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
+ * <9>     :: SSTX2 Directionality support
+ * <8>     :: SSRX1 Directionality support
+ * <7>     :: SSRX2 Directionality support
+ * <6:5>   :: Vbus current handling capability
+ * <4>     :: Vbus through cable (0b == no, 1b == yes)
+ * <3>     :: SOP" controller present? (0b == no, 1b == yes)
+ * <2:0>   :: USB SS Signaling support
+ */
+#define CABLE_ATYPE		0
+#define CABLE_BTYPE		1
+#define CABLE_CTYPE		2
+#define CABLE_PLUG		0
+#define CABLE_RECEPTACLE	1
+#define CABLE_CURR_1A5		0
+#define CABLE_CURR_3A		1
+#define CABLE_CURR_5A		2
+#define CABLE_USBSS_U2_ONLY	0
+#define CABLE_USBSS_U31_GEN1	1
+#define CABLE_USBSS_U31_GEN2	2
+#define VDO_CABLE(hw, fw, cbl, gdr, lat, term, tx1d, tx2d, rx1d, rx2d, cur,\
+		  vps, sopp, usbss) \
+	(((hw) & 0x7) << 28 | ((fw) & 0x7) << 24 | ((cbl) & 0x3) << 18	\
+	 | (gdr) << 17 | ((lat) & 0x7) << 13 | ((term) & 0x3) << 11	\
+	 | (tx1d) << 10 | (tx2d) << 9 | (rx1d) << 8 | (rx2d) << 7	\
+	 | ((cur) & 0x3) << 5 | (vps) << 4 | (sopp) << 3		\
+	 | ((usbss) & 0x7))
+
+/*
+ * AMA VDO
+ * ---------
+ * <31:28> :: Cable HW version
+ * <27:24> :: Cable FW version
+ * <23:12> :: Reserved, Shall be set to zero
+ * <11>    :: SSTX1 Directionality support (0b == fixed, 1b == cfgable)
+ * <10>    :: SSTX2 Directionality support
+ * <9>     :: SSRX1 Directionality support
+ * <8>     :: SSRX2 Directionality support
+ * <7:5>   :: Vconn power
+ * <4>     :: Vconn power required
+ * <3>     :: Vbus power required
+ * <2:0>   :: USB SS Signaling support
+ */
+#define VDO_AMA(hw, fw, tx1d, tx2d, rx1d, rx2d, vcpwr, vcr, vbr, usbss) \
+	(((hw) & 0x7) << 28 | ((fw) & 0x7) << 24			\
+	 | (tx1d) << 11 | (tx2d) << 10 | (rx1d) << 9 | (rx2d) << 8	\
+	 | ((vcpwr) & 0x7) << 5 | (vcr) << 4 | (vbr) << 3		\
+	 | ((usbss) & 0x7))
+
+#define PD_VDO_AMA_VCONN_REQ(vdo)	(((vdo) >> 4) & 1)
+#define PD_VDO_AMA_VBUS_REQ(vdo)	(((vdo) >> 3) & 1)
+
+#define AMA_VCONN_PWR_1W	0
+#define AMA_VCONN_PWR_1W5	1
+#define AMA_VCONN_PWR_2W	2
+#define AMA_VCONN_PWR_3W	3
+#define AMA_VCONN_PWR_4W	4
+#define AMA_VCONN_PWR_5W	5
+#define AMA_VCONN_PWR_6W	6
+#define AMA_USBSS_U2_ONLY	0
+#define AMA_USBSS_U31_GEN1	1
+#define AMA_USBSS_U31_GEN2	2
+#define AMA_USBSS_BBONLY	3
+
+/*
+ * SVDM Discover SVIDs request -> response
+ *
+ * Request is properly formatted VDM Header with discover SVIDs command.
+ * Response is a set of SVIDs of all all supported SVIDs with all zero's to
+ * mark the end of SVIDs.  If more than 12 SVIDs are supported command SHOULD be
+ * repeated.
+ */
+#define VDO_SVID(svid0, svid1)	(((svid0) & 0xffff) << 16 | ((svid1) & 0xffff))
+#define PD_VDO_SVID_SVID0(vdo)	((vdo) >> 16)
+#define PD_VDO_SVID_SVID1(vdo)	((vdo) & 0xffff)
+
+/* USB-IF SIDs */
+#define USB_SID_PD		0xff00 /* power delivery */
+#define USB_SID_DISPLAYPORT	0xff01
+#define USB_SID_MHL		0xff02	/* Mobile High-Definition Link */
+
+/* VDM command timeouts (in ms) */
+
+#define PD_T_VDM_UNSTRUCTURED	500
+#define PD_T_VDM_BUSY		100
+#define PD_T_VDM_WAIT_MODE_E	100
+#define PD_T_VDM_SNDR_RSP	30
+#define PD_T_VDM_E_MODE		25
+#define PD_T_VDM_RCVR_RSP	15
+
+#endif /* __LINUX_USB_PD_VDO_H */
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
new file mode 100644
index 000000000000..073197f0d2bb
--- /dev/null
+++ b/include/linux/usb/tcpm.h
@@ -0,0 +1,204 @@
+/*
+ * Copyright 2015-2017 Google, Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_USB_TCPM_H
+#define __LINUX_USB_TCPM_H
+
+#include <linux/bitops.h>
+#include <linux/usb/typec.h>
+#include "pd.h"
+
+enum typec_cc_status {
+	TYPEC_CC_OPEN,
+	TYPEC_CC_RA,
+	TYPEC_CC_RD,
+	TYPEC_CC_RP_DEF,
+	TYPEC_CC_RP_1_5,
+	TYPEC_CC_RP_3_0,
+};
+
+enum typec_cc_polarity {
+	TYPEC_POLARITY_CC1,
+	TYPEC_POLARITY_CC2,
+};
+
+/* Time to wait for TCPC to complete transmit */
+#define PD_T_TCPC_TX_TIMEOUT	100		/* in ms	*/
+#define PD_ROLE_SWAP_TIMEOUT	(MSEC_PER_SEC * 10)
+
+enum tcpm_transmit_status {
+	TCPC_TX_SUCCESS = 0,
+	TCPC_TX_DISCARDED = 1,
+	TCPC_TX_FAILED = 2,
+};
+
+enum tcpm_transmit_type {
+	TCPC_TX_SOP = 0,
+	TCPC_TX_SOP_PRIME = 1,
+	TCPC_TX_SOP_PRIME_PRIME = 2,
+	TCPC_TX_SOP_DEBUG_PRIME = 3,
+	TCPC_TX_SOP_DEBUG_PRIME_PRIME = 4,
+	TCPC_TX_HARD_RESET = 5,
+	TCPC_TX_CABLE_RESET = 6,
+	TCPC_TX_BIST_MODE_2 = 7
+};
+
+/**
+ * struct tcpc_config - Port configuration
+ * @src_pdo:	PDO parameters sent to port partner as response to
+ *		PD_CTRL_GET_SOURCE_CAP message
+ * @nr_src_pdo:	Number of entries in @src_pdo
+ * @snk_pdo:	PDO parameters sent to partner as response to
+ *		PD_CTRL_GET_SINK_CAP message
+ * @nr_snk_pdo:	Number of entries in @snk_pdo
+ * @max_snk_mv:	Maximum acceptable sink voltage in mV
+ * @max_snk_ma:	Maximum sink current in mA
+ * @max_snk_mw:	Maximum required sink power in mW
+ * @operating_snk_mw:
+ *		Required operating sink power in mW
+ * @type:	Port type (TYPEC_PORT_DFP, TYPEC_PORT_UFP, or
+ *		TYPEC_PORT_DRP)
+ * @default_role:
+ *		Default port role (TYPEC_SINK or TYPEC_SOURCE).
+ *		Set to TYPEC_NO_PREFERRED_ROLE if no default role.
+ * @try_role_hw:True if try.{Src,Snk} is implemented in hardware
+ * @alt_modes:	List of supported alternate modes
+ */
+struct tcpc_config {
+	const u32 *src_pdo;
+	unsigned int nr_src_pdo;
+
+	const u32 *snk_pdo;
+	unsigned int nr_snk_pdo;
+
+	const u32 *snk_vdo;
+	unsigned int nr_snk_vdo;
+
+	unsigned int max_snk_mv;
+	unsigned int max_snk_ma;
+	unsigned int max_snk_mw;
+	unsigned int operating_snk_mw;
+
+	enum typec_port_type type;
+	enum typec_role default_role;
+	bool try_role_hw;	/* try.{src,snk} implemented in hardware */
+
+	const struct typec_altmode_desc *alt_modes;
+};
+
+enum tcpc_usb_switch {
+	TCPC_USB_SWITCH_CONNECT,
+	TCPC_USB_SWITCH_DISCONNECT,
+};
+
+/* Mux state attributes */
+#define TCPC_MUX_USB_ENABLED		BIT(0)	/* USB enabled */
+#define TCPC_MUX_DP_ENABLED		BIT(1)	/* DP enabled */
+#define TCPC_MUX_POLARITY_INVERTED	BIT(2)	/* Polarity inverted */
+
+/* Mux modes, decoded to attributes */
+enum tcpc_mux_mode {
+	TYPEC_MUX_NONE	= 0,				/* Open switch */
+	TYPEC_MUX_USB	= TCPC_MUX_USB_ENABLED,		/* USB only */
+	TYPEC_MUX_DP	= TCPC_MUX_DP_ENABLED,		/* DP only */
+	TYPEC_MUX_DOCK	= TCPC_MUX_USB_ENABLED |	/* Both USB and DP */
+			  TCPC_MUX_DP_ENABLED,
+};
+
+struct tcpc_mux_dev {
+	int (*set)(struct tcpc_mux_dev *dev, enum tcpc_mux_mode mux_mode,
+		   enum tcpc_usb_switch usb_config,
+		   enum typec_cc_polarity polarity);
+	bool dfp_only;
+	void *priv_data;
+};
+
+/**
+ * struct tcpc_dev - Port configuration and callback functions
+ * @config:	Pointer to port configuration
+ * @get_vbus:	Called to read current VBUS state
+ * @get_current_limit:
+ *		Optional; called by the tcpm core when configured as a snk
+ *		and cc=Rp-def. This allows the tcpm to provide a fallback
+ *		current-limit detection method for the cc=Rp-def case.
+ *		For example, some tcpcs may include BC1.2 charger detection
+ *		and use that in this case.
+ * @set_cc:	Called to set value of CC pins
+ * @get_cc:	Called to read current CC pin values
+ * @set_polarity:
+ *		Called to set polarity
+ * @set_vconn:	Called to enable or disable VCONN
+ * @set_vbus:	Called to enable or disable VBUS
+ * @set_current_limit:
+ *		Optional; called to set current limit as negotiated
+ *		with partner.
+ * @set_pd_rx:	Called to enable or disable reception of PD messages
+ * @set_roles:	Called to set power and data roles
+ * @start_drp_toggling:
+ *		Optional; if supported by hardware, called to start DRP
+ *		toggling. DRP toggling is stopped automatically if
+ *		a connection is established.
+ * @try_role:	Optional; called to set a preferred role
+ * @pd_transmit:Called to transmit PD message
+ * @mux:	Pointer to multiplexer data
+ */
+struct tcpc_dev {
+	const struct tcpc_config *config;
+
+	int (*init)(struct tcpc_dev *dev);
+	int (*get_vbus)(struct tcpc_dev *dev);
+	int (*get_current_limit)(struct tcpc_dev *dev);
+	int (*set_cc)(struct tcpc_dev *dev, enum typec_cc_status cc);
+	int (*get_cc)(struct tcpc_dev *dev, enum typec_cc_status *cc1,
+		      enum typec_cc_status *cc2);
+	int (*set_polarity)(struct tcpc_dev *dev,
+			    enum typec_cc_polarity polarity);
+	int (*set_vconn)(struct tcpc_dev *dev, bool on);
+	int (*set_vbus)(struct tcpc_dev *dev, bool on, bool charge);
+	int (*set_current_limit)(struct tcpc_dev *dev, u32 max_ma, u32 mv);
+	int (*set_pd_rx)(struct tcpc_dev *dev, bool on);
+	int (*set_roles)(struct tcpc_dev *dev, bool attached,
+			 enum typec_role role, enum typec_data_role data);
+	int (*start_drp_toggling)(struct tcpc_dev *dev,
+				  enum typec_cc_status cc);
+	int (*try_role)(struct tcpc_dev *dev, int role);
+	int (*pd_transmit)(struct tcpc_dev *dev, enum tcpm_transmit_type type,
+			   const struct pd_message *msg);
+	struct tcpc_mux_dev *mux;
+};
+
+struct tcpm_port;
+
+struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc);
+void tcpm_unregister_port(struct tcpm_port *port);
+
+void tcpm_update_source_capabilities(struct tcpm_port *port, const u32 *pdo,
+				     unsigned int nr_pdo);
+void tcpm_update_sink_capabilities(struct tcpm_port *port, const u32 *pdo,
+				   unsigned int nr_pdo,
+				   unsigned int max_snk_mv,
+				   unsigned int max_snk_ma,
+				   unsigned int max_snk_mw,
+				   unsigned int operating_snk_mw);
+
+void tcpm_vbus_change(struct tcpm_port *port);
+void tcpm_cc_change(struct tcpm_port *port);
+void tcpm_pd_receive(struct tcpm_port *port,
+		     const struct pd_message *msg);
+void tcpm_pd_transmit_complete(struct tcpm_port *port,
+			       enum tcpm_transmit_status status);
+void tcpm_pd_hard_reset(struct tcpm_port *port);
+void tcpm_tcpc_reset(struct tcpm_port *port);
+
+#endif /* __LINUX_USB_TCPM_H */
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index aa95053dfc78..425752f768d2 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -96,7 +96,7 @@ struct inet_request_sock {
 	kmemcheck_bitfield_end(flags);
 	u32                     ir_mark;
 	union {
-		struct ip_options_rcu	*opt;
+		struct ip_options_rcu __rcu	*ireq_opt;
 #if IS_ENABLED(CONFIG_IPV6)
 		struct {
 			struct ipv6_txoptions	*ipv6_opt;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 89974c5286d8..b1ef98ebce53 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -840,6 +840,11 @@ struct tcp_skb_cb {
 			struct inet6_skb_parm	h6;
 #endif
 		} header;	/* For incoming skbs */
+		struct {
+			__u32 key;
+			__u32 flags;
+			struct bpf_map *map;
+		} bpf;
 	};
 };
 
diff --git a/include/sound/control.h b/include/sound/control.h
index bd7246de58e7..a1f1152bc687 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -248,6 +248,9 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl,
 			     void *private_data);
 void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only);
 #define snd_ctl_sync_vmaster_hook(kctl)	snd_ctl_sync_vmaster(kctl, true)
+int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
+				 int (*func)(struct snd_kcontrol *, void *),
+				 void *arg);
 
 /*
  * Helper functions for jack-detection controls
diff --git a/include/uapi/linux/membarrier.h b/include/uapi/linux/membarrier.h
index 6d47b3249d8a..4e01ad7ffe98 100644
--- a/include/uapi/linux/membarrier.h
+++ b/include/uapi/linux/membarrier.h
@@ -52,21 +52,30 @@
  *                          (non-running threads are de facto in such a
  *                          state). This only covers threads from the
  *                          same processes as the caller thread. This
- *                          command returns 0. The "expedited" commands
- *                          complete faster than the non-expedited ones,
- *                          they never block, but have the downside of
- *                          causing extra overhead.
+ *                          command returns 0 on success. The
+ *                          "expedited" commands complete faster than
+ *                          the non-expedited ones, they never block,
+ *                          but have the downside of causing extra
+ *                          overhead. A process needs to register its
+ *                          intent to use the private expedited command
+ *                          prior to using it, otherwise this command
+ *                          returns -EPERM.
+ * @MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED:
+ *                          Register the process intent to use
+ *                          MEMBARRIER_CMD_PRIVATE_EXPEDITED. Always
+ *                          returns 0.
  *
  * Command to be passed to the membarrier system call. The commands need to
  * be a single bit each, except for MEMBARRIER_CMD_QUERY which is assigned to
  * the value 0.
  */
 enum membarrier_cmd {
-	MEMBARRIER_CMD_QUERY			= 0,
-	MEMBARRIER_CMD_SHARED			= (1 << 0),
+	MEMBARRIER_CMD_QUERY				= 0,
+	MEMBARRIER_CMD_SHARED				= (1 << 0),
 	/* reserved for MEMBARRIER_CMD_SHARED_EXPEDITED (1 << 1) */
 	/* reserved for MEMBARRIER_CMD_PRIVATE (1 << 2) */
-	MEMBARRIER_CMD_PRIVATE_EXPEDITED	= (1 << 3),
+	MEMBARRIER_CMD_PRIVATE_EXPEDITED		= (1 << 3),
+	MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED	= (1 << 4),
 };
 
 #endif /* _UAPI_LINUX_MEMBARRIER_H */