Merge branch 'sched/rt' into sched/core, to pick up -rt changes

Pick up the first couple of patches working towards PREEMPT_RT.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

52 files changed, 105 insertions, 91 deletions

diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index 8666fe7f35d7..02970b11f71f 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -118,26 +118,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 static inline int
 arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
 {
-	int oldval = 0, ret;
-
-	pagefault_disable();
-
-	switch (op) {
-	case FUTEX_OP_SET:
-	case FUTEX_OP_ADD:
-	case FUTEX_OP_OR:
-	case FUTEX_OP_ANDN:
-	case FUTEX_OP_XOR:
-	default:
-		ret = -ENOSYS;
-	}
-
-	pagefault_enable();
-
-	if (!ret)
-		*oval = oldval;
-
-	return ret;
+	return -ENOSYS;
 }
 
 static inline int
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index c3046c920063..d683f5e6d791 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -78,11 +78,11 @@ static __always_inline bool should_resched(int preempt_offset)
 			tif_need_resched());
 }
 
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 extern asmlinkage void preempt_schedule(void);
 #define __preempt_schedule() preempt_schedule()
 extern asmlinkage void preempt_schedule_notrace(void);
 #define __preempt_schedule_notrace() preempt_schedule_notrace()
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
 
 #endif /* __ASM_PREEMPT_H */
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 689a58231288..12811091fd50 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -181,6 +181,7 @@ struct blkcg_policy {
 
 extern struct blkcg blkcg_root;
 extern struct cgroup_subsys_state * const blkcg_root_css;
+extern bool blkcg_debug_stats;
 
 struct blkcg_gq *blkg_lookup_slowpath(struct blkcg *blkcg,
 				      struct request_queue *q, bool update_hint);
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index feff3fe4467e..1b1fa1557e68 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -311,6 +311,7 @@ enum req_flag_bits {
 	__REQ_RAHEAD,		/* read ahead, can fail anytime */
 	__REQ_BACKGROUND,	/* background IO */
 	__REQ_NOWAIT,           /* Don't wait if request will block */
+	__REQ_NOWAIT_INLINE,	/* Return would-block error inline */
 	/*
 	 * When a shared kthread needs to issue a bio for a cgroup, doing
 	 * so synchronously can lead to priority inversions as the kthread
@@ -345,6 +346,7 @@ enum req_flag_bits {
 #define REQ_RAHEAD		(1ULL << __REQ_RAHEAD)
 #define REQ_BACKGROUND		(1ULL << __REQ_BACKGROUND)
 #define REQ_NOWAIT		(1ULL << __REQ_NOWAIT)
+#define REQ_NOWAIT_INLINE	(1ULL << __REQ_NOWAIT_INLINE)
 #define REQ_CGROUP_PUNT		(1ULL << __REQ_CGROUP_PUNT)
 
 #define REQ_NOUNMAP		(1ULL << __REQ_NOUNMAP)
@@ -418,12 +420,13 @@ static inline int op_stat_group(unsigned int op)
 
 typedef unsigned int blk_qc_t;
 #define BLK_QC_T_NONE		-1U
+#define BLK_QC_T_EAGAIN		-2U
 #define BLK_QC_T_SHIFT		16
 #define BLK_QC_T_INTERNAL	(1U << 31)
 
 static inline bool blk_qc_t_valid(blk_qc_t cookie)
 {
-	return cookie != BLK_QC_T_NONE;
+	return cookie != BLK_QC_T_NONE && cookie != BLK_QC_T_EAGAIN;
 }
 
 static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie)
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 7eb43a038330..f7a30e0099be 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -145,7 +145,11 @@ struct cred {
 	struct user_struct *user;	/* real user ID subscription */
 	struct user_namespace *user_ns; /* user_ns the caps and keyrings are relative to. */
 	struct group_info *group_info;	/* supplementary groups for euid/fsgid */
-	struct rcu_head	rcu;		/* RCU deletion hook */
+	/* RCU deletion */
+	union {
+		int non_rcu;			/* Can we skip RCU deletion? */
+		struct rcu_head	rcu;		/* RCU deletion hook */
+	};
 } __randomize_layout;
 
 extern void __put_cred(struct cred *);
@@ -246,6 +250,7 @@ static inline const struct cred *get_cred(const struct cred *cred)
 	if (!cred)
 		return cred;
 	validate_creds(cred);
+	nonconst_cred->non_rcu = 0;
 	return get_new_cred(nonconst_cred);
 }
 
@@ -257,6 +262,7 @@ static inline const struct cred *get_cred_rcu(const struct cred *cred)
 	if (!atomic_inc_not_zero(&nonconst_cred->usage))
 		return NULL;
 	validate_creds(cred);
+	nonconst_cred->non_rcu = 0;
 	return cred;
 }
 
diff --git a/include/linux/device.h b/include/linux/device.h
index c330b75c6c57..6717adee33f0 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -915,6 +915,8 @@ struct dev_links_info {
  * 		This identifies the device type and carries type-specific
  * 		information.
  * @mutex:	Mutex to synchronize calls to its driver.
+ * @lockdep_mutex: An optional debug lock that a subsystem can use as a
+ * 		peer lock to gain localized lockdep coverage of the device_lock.
  * @bus:	Type of bus device is on.
  * @driver:	Which driver has allocated this
  * @platform_data: Platform data specific to the device.
@@ -998,6 +1000,9 @@ struct device {
 					   core doesn't touch it */
 	void		*driver_data;	/* Driver data, set and get with
 					   dev_set_drvdata/dev_get_drvdata */
+#ifdef CONFIG_PROVE_LOCKING
+	struct mutex		lockdep_mutex;
+#endif
 	struct mutex		mutex;	/* mutex to synchronize calls to
 					 * its driver.
 					 */
@@ -1383,6 +1388,7 @@ extern int (*platform_notify_remove)(struct device *dev);
  */
 extern struct device *get_device(struct device *dev);
 extern void put_device(struct device *dev);
+extern bool kill_device(struct device *dev);
 
 #ifdef CONFIG_DEVTMPFS
 extern int devtmpfs_create_node(struct device *dev);
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index e11b115dd0e4..f7d1eea32c78 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -689,8 +689,8 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
  */
 static inline bool dma_addressing_limited(struct device *dev)
 {
-	return min_not_zero(*dev->dma_mask, dev->bus_dma_mask) <
-		dma_get_required_mask(dev);
+	return min_not_zero(dma_get_mask(dev), dev->bus_dma_mask) <
+			    dma_get_required_mask(dev);
 }
 
 #ifdef CONFIG_ARCH_HAS_SETUP_DMA_OPS
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 17cd0078377c..1dd014c9c87b 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -45,7 +45,6 @@ struct elevator_mq_ops {
 	struct request *(*dispatch_request)(struct blk_mq_hw_ctx *);
 	bool (*has_work)(struct blk_mq_hw_ctx *);
 	void (*completed_request)(struct request *, u64);
-	void (*started_request)(struct request *);
 	void (*requeue_request)(struct request *);
 	struct request *(*former_request)(struct request_queue *, struct request *);
 	struct request *(*next_request)(struct request_queue *, struct request *);
diff --git a/include/linux/iova.h b/include/linux/iova.h
index 781b96ac706f..a0637abffee8 100644
--- a/include/linux/iova.h
+++ b/include/linux/iova.h
@@ -155,6 +155,7 @@ struct iova *reserve_iova(struct iova_domain *iovad, unsigned long pfn_lo,
 void copy_reserved_iova(struct iova_domain *from, struct iova_domain *to);
 void init_iova_domain(struct iova_domain *iovad, unsigned long granule,
 	unsigned long start_pfn);
+bool has_iova_flush_queue(struct iova_domain *iovad);
 int init_iova_flush_queue(struct iova_domain *iovad,
 			  iova_flush_cb flush_cb, iova_entry_dtor entry_dtor);
 struct iova *find_iova(struct iova_domain *iovad, unsigned long pfn);
@@ -235,6 +236,11 @@ static inline void init_iova_domain(struct iova_domain *iovad,
 {
 }
 
+static inline bool has_iova_flush_queue(struct iova_domain *iovad)
+{
+	return false;
+}
+
 static inline int init_iova_flush_queue(struct iova_domain *iovad,
 					iova_flush_cb flush_cb,
 					iova_entry_dtor entry_dtor)
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index b2c1648f7e5d..5714fd35a83c 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -814,6 +814,7 @@ struct tee_client_device_id {
 /**
  * struct wmi_device_id - WMI device identifier
  * @guid_string: 36 char string of the form fa50ff2b-f2e8-45de-83fa-65417f2f49ba
+ * @context: pointer to driver specific data
  */
 struct wmi_device_id {
 	const char guid_string[UUID_STRING_LEN+1];
diff --git a/include/linux/of.h b/include/linux/of.h
index 0cf857012f11..844f89e1b039 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -1164,7 +1164,7 @@ static inline int of_property_read_string_index(const struct device_node *np,
 }
 
 /**
- * of_property_read_bool - Findfrom a property
+ * of_property_read_bool - Find a property
  * @np:		device node from which the property value is to be read.
  * @propname:	name of the property to be searched.
  *
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index dd92b1a93919..bbb68dba37cc 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -182,7 +182,7 @@ do { \
 
 #define preemptible()	(preempt_count() == 0 && !irqs_disabled())
 
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 #define preempt_enable() \
 do { \
 	barrier(); \
@@ -203,7 +203,7 @@ do { \
 		__preempt_schedule(); \
 } while (0)
 
-#else /* !CONFIG_PREEMPT */
+#else /* !CONFIG_PREEMPTION */
 #define preempt_enable() \
 do { \
 	barrier(); \
@@ -217,7 +217,7 @@ do { \
 } while (0)
 
 #define preempt_check_resched() do { } while (0)
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
 
 #define preempt_disable_notrace() \
 do { \
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 8f7167478c1d..c4f76a310443 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -578,7 +578,7 @@ do {									      \
  *
  * In non-preemptible RCU implementations (TREE_RCU and TINY_RCU),
  * it is illegal to block while in an RCU read-side critical section.
- * In preemptible RCU implementations (PREEMPT_RCU) in CONFIG_PREEMPT
+ * In preemptible RCU implementations (PREEMPT_RCU) in CONFIG_PREEMPTION
  * kernel builds, RCU read-side critical sections may be preempted,
  * but explicit blocking is illegal.  Finally, in preemptible RCU
  * implementations in real-time (with -rt patchset) kernel builds, RCU
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 735601ac27d3..18b1ed9864b0 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -53,7 +53,7 @@ void rcu_scheduler_starting(void);
 extern int rcu_scheduler_active __read_mostly;
 void rcu_end_inkernel_boot(void);
 bool rcu_is_watching(void);
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
 void rcu_all_qs(void);
 #endif
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b94ad92dfbe6..f0edee94834a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1772,7 +1772,7 @@ static inline int test_tsk_need_resched(struct task_struct *tsk)
  * value indicates whether a reschedule was done in fact.
  * cond_resched_lock() will drop the spinlock before scheduling,
  */
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
 extern int _cond_resched(void);
 #else
 static inline int _cond_resched(void) { return 0; }
@@ -1801,12 +1801,12 @@ static inline void cond_resched_rcu(void)
 
 /*
  * Does a critical section need to be broken due to another
- * task waiting?: (technically does not depend on CONFIG_PREEMPT,
+ * task waiting?: (technically does not depend on CONFIG_PREEMPTION,
  * but a general need for low latency)
  */
 static inline int spin_needbreak(spinlock_t *lock)
 {
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 	return spin_is_contended(lock);
 #else
 	return 0;
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index ed7c4d6b8235..031ce8617df8 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -214,7 +214,7 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
 
 /*
  * Define the various spin_lock methods.  Note we define these
- * regardless of whether CONFIG_SMP or CONFIG_PREEMPT are set. The
+ * regardless of whether CONFIG_SMP or CONFIG_PREEMPTION are set. The
  * various methods are defined as nops in the case they are not
  * required.
  */
diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h
index 42dfab89e740..b762eaba4cdf 100644
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -96,7 +96,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 
 /*
  * If lockdep is enabled then we use the non-preemption spin-ops
- * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
+ * even on CONFIG_PREEMPTION, because lockdep assumes that interrupts are
  * not re-enabled during lock-acquire (which the preempt-spin-ops do):
  */
 #if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
diff --git a/include/linux/torture.h b/include/linux/torture.h
index a620118385bb..6241f59e2d6f 100644
--- a/include/linux/torture.h
+++ b/include/linux/torture.h
@@ -86,7 +86,7 @@ void _torture_stop_kthread(char *m, struct task_struct **tp);
 #define torture_stop_kthread(n, tp) \
 	_torture_stop_kthread("Stopping " #n " task", &(tp))
 
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 #define torture_preempt_schedule() preempt_schedule()
 #else
 #define torture_preempt_schedule()
diff --git a/include/linux/wait.h b/include/linux/wait.h
index b6f77cf60dd7..30c515520fb2 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -127,6 +127,19 @@ static inline int waitqueue_active(struct wait_queue_head *wq_head)
 }
 
 /**
+ * wq_has_single_sleeper - check if there is only one sleeper
+ * @wq_head: wait queue head
+ *
+ * Returns true of wq_head has only one sleeper on the list.
+ *
+ * Please refer to the comment for waitqueue_active.
+ */
+static inline bool wq_has_single_sleeper(struct wait_queue_head *wq_head)
+{
+	return list_is_singular(&wq_head->head);
+}
+
+/**
  * wq_has_sleeper - check if there are any waiting processes
  * @wq_head: wait queue head
  *
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index c50fb297e265..dc14b52577f7 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -31,7 +31,7 @@
  * FIP tunable parameters.
  */
 #define FCOE_CTLR_START_DELAY	2000	/* mS after first adv. to choose FCF */
-#define FCOE_CTRL_SOL_TOV	2000	/* min. solicitation interval (mS) */
+#define FCOE_CTLR_SOL_TOV	2000	/* min. solicitation interval (mS) */
 #define FCOE_CTLR_FCF_LIMIT	20	/* max. number of FCF entries */
 #define FCOE_CTLR_VN2VN_LOGIN_LIMIT 3	/* max. VN2VN rport login retries */
 
diff --git a/include/soc/fsl/qe/qe.h b/include/soc/fsl/qe/qe.h
index 3f9d6b6a5691..c1036d16ed03 100644
--- a/include/soc/fsl/qe/qe.h
+++ b/include/soc/fsl/qe/qe.h
@@ -259,7 +259,7 @@ static inline int qe_alive_during_sleep(void)
 
 /* Structure that defines QE firmware binary files.
  *
- * See Documentation/powerpc/qe_firmware.txt for a description of these
+ * See Documentation/powerpc/qe_firmware.rst for a description of these
  * fields.
  */
 struct qe_firmware {
diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index c5188ff724d1..bc88d6f964da 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -173,10 +173,7 @@ static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
 	if (snd_BUG_ON(!stream))
 		return;
 
-	if (stream->direction == SND_COMPRESS_PLAYBACK)
-		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
-	else
-		stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
+	stream->runtime->state = SNDRV_PCM_STATE_SETUP;
 
 	wake_up(&stream->runtime->sleep);
 }
diff --git a/include/sound/sof/control.h b/include/sound/sof/control.h
index bded69e696d4..6080ea0facd7 100644
--- a/include/sound/sof/control.h
+++ b/include/sound/sof/control.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/dai-intel.h b/include/sound/sof/dai-intel.h
index 4bb8ee138ba7..65e4c20e567c 100644
--- a/include/sound/sof/dai-intel.h
+++ b/include/sound/sof/dai-intel.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/dai.h b/include/sound/sof/dai.h
index 3d174e20aa53..5b8de1b1983c 100644
--- a/include/sound/sof/dai.h
+++ b/include/sound/sof/dai.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/header.h b/include/sound/sof/header.h
index 12867bbd4372..10f00c08dbb7 100644
--- a/include/sound/sof/header.h
+++ b/include/sound/sof/header.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/info.h b/include/sound/sof/info.h
index 16528d2b4a50..a9156b4a062c 100644
--- a/include/sound/sof/info.h
+++ b/include/sound/sof/info.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/pm.h b/include/sound/sof/pm.h
index 8ae3ad45bdf7..003879401d63 100644
--- a/include/sound/sof/pm.h
+++ b/include/sound/sof/pm.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/stream.h b/include/sound/sof/stream.h
index 643f175cb479..0b71b381b952 100644
--- a/include/sound/sof/stream.h
+++ b/include/sound/sof/stream.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/topology.h b/include/sound/sof/topology.h
index 41dcabf89899..c47b36240920 100644
--- a/include/sound/sof/topology.h
+++ b/include/sound/sof/topology.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/trace.h b/include/sound/sof/trace.h
index 9257d5473d97..fda6e8f6ead4 100644
--- a/include/sound/sof/trace.h
+++ b/include/sound/sof/trace.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/sound/sof/xtensa.h b/include/sound/sof/xtensa.h
index d25c764b10e8..dd53d36b34e1 100644
--- a/include/sound/sof/xtensa.h
+++ b/include/sound/sof/xtensa.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/include/uapi/linux/bpfilter.h b/include/uapi/linux/bpfilter.h
index 2ec3cc99ea4c..cbc1f5813f50 100644
--- a/include/uapi/linux/bpfilter.h
+++ b/include/uapi/linux/bpfilter.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_BPFILTER_H
 #define _UAPI_LINUX_BPFILTER_H
 
diff --git a/include/uapi/linux/ipmi_bmc.h b/include/uapi/linux/ipmi_bmc.h
index 1670f0944227..782a03eb1086 100644
--- a/include/uapi/linux/ipmi_bmc.h
+++ b/include/uapi/linux/ipmi_bmc.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2015-2018, Intel Corporation.
  */
diff --git a/include/uapi/linux/isst_if.h b/include/uapi/linux/isst_if.h
index d10b832c58c5..0a52b7b093d3 100644
--- a/include/uapi/linux/isst_if.h
+++ b/include/uapi/linux/isst_if.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Intel Speed Select Interface: OS to hardware Interface
  * Copyright (c) 2019, Intel Corporation.
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index a7c19540ce21..5e3f12d5359e 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -116,7 +116,7 @@ struct kvm_irq_level {
 	 * ACPI gsi notion of irq.
 	 * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
 	 * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
-	 * For ARM: See Documentation/virtual/kvm/api.txt
+	 * For ARM: See Documentation/virt/kvm/api.txt
 	 */
 	union {
 		__u32 irq;
@@ -1086,7 +1086,7 @@ struct kvm_xen_hvm_config {
  *
  * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
  * the irqfd to operate in resampling mode for level triggered interrupt
- * emulation.  See Documentation/virtual/kvm/api.txt.
+ * emulation.  See Documentation/virt/kvm/api.txt.
  */
 #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
 
diff --git a/include/uapi/linux/netfilter/nf_synproxy.h b/include/uapi/linux/netfilter/nf_synproxy.h
index 6f3791c8946f..00d787f0260e 100644
--- a/include/uapi/linux/netfilter/nf_synproxy.h
+++ b/include/uapi/linux/netfilter/nf_synproxy.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NF_SYNPROXY_H
 #define _NF_SYNPROXY_H
 
diff --git a/include/uapi/linux/psp-sev.h b/include/uapi/linux/psp-sev.h
index 8654b2442f6a..592a0c1b77c9 100644
--- a/include/uapi/linux/psp-sev.h
+++ b/include/uapi/linux/psp-sev.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
 /*
  * Userspace interface for AMD Secure Encrypted Virtualization (SEV)
  * platform management commands.
diff --git a/include/uapi/linux/rxrpc.h b/include/uapi/linux/rxrpc.h
index 782069dcf607..4accfa7e266d 100644
--- a/include/uapi/linux/rxrpc.h
+++ b/include/uapi/linux/rxrpc.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */
 /* Types and definitions for AF_RXRPC.
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 5642c05e0da0..3cc3af1c2ee1 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -150,9 +150,6 @@
 
 #define PORT_PNX8XXX	70
 
-/* Hilscher netx */
-#define PORT_NETX	71
-
 /* SUN4V Hypervisor Console */
 #define PORT_SUNHV	72
 
diff --git a/include/uapi/linux/usb/g_uvc.h b/include/uapi/linux/usb/g_uvc.h
index 3c9ee3020cbb..652f169a019e 100644
--- a/include/uapi/linux/usb/g_uvc.h
+++ b/include/uapi/linux/usb/g_uvc.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * g_uvc.h  --  USB Video Class Gadget driver API
  *
diff --git a/include/uapi/linux/vbox_vmmdev_types.h b/include/uapi/linux/vbox_vmmdev_types.h
index 26f39816af14..c27289fd619a 100644
--- a/include/uapi/linux/vbox_vmmdev_types.h
+++ b/include/uapi/linux/vbox_vmmdev_types.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR CDDL-1.0) */
 /*
  * Virtual Device for Guest <-> VMM/Host communication, type definitions
  * which are also used for the vboxguest ioctl interface / by vboxsf
diff --git a/include/uapi/linux/vboxguest.h b/include/uapi/linux/vboxguest.h
index 612f0c7d3558..9cec58a6a5ea 100644
--- a/include/uapi/linux/vboxguest.h
+++ b/include/uapi/linux/vboxguest.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR CDDL-1.0) */
 /*
  * VBoxGuest - VirtualBox Guest Additions Driver Interface.
  *
diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h
index ba1b460c9944..237e36a280cb 100644
--- a/include/uapi/linux/virtio_iommu.h
+++ b/include/uapi/linux/virtio_iommu.h
@@ -1,8 +1,8 @@
 /* SPDX-License-Identifier: BSD-3-Clause */
 /*
- * Virtio-iommu definition v0.9
+ * Virtio-iommu definition v0.12
  *
- * Copyright (C) 2018 Arm Ltd.
+ * Copyright (C) 2019 Arm Ltd.
  */
 #ifndef _UAPI_LINUX_VIRTIO_IOMMU_H
 #define _UAPI_LINUX_VIRTIO_IOMMU_H
@@ -11,26 +11,31 @@
 
 /* Feature bits */
 #define VIRTIO_IOMMU_F_INPUT_RANGE		0
-#define VIRTIO_IOMMU_F_DOMAIN_BITS		1
+#define VIRTIO_IOMMU_F_DOMAIN_RANGE		1
 #define VIRTIO_IOMMU_F_MAP_UNMAP		2
 #define VIRTIO_IOMMU_F_BYPASS			3
 #define VIRTIO_IOMMU_F_PROBE			4
+#define VIRTIO_IOMMU_F_MMIO			5
 
-struct virtio_iommu_range {
-	__u64					start;
-	__u64					end;
+struct virtio_iommu_range_64 {
+	__le64					start;
+	__le64					end;
+};
+
+struct virtio_iommu_range_32 {
+	__le32					start;
+	__le32					end;
 };
 
 struct virtio_iommu_config {
 	/* Supported page sizes */
-	__u64					page_size_mask;
+	__le64					page_size_mask;
 	/* Supported IOVA range */
-	struct virtio_iommu_range		input_range;
+	struct virtio_iommu_range_64		input_range;
 	/* Max domain ID size */
-	__u8					domain_bits;
-	__u8					padding[3];
+	struct virtio_iommu_range_32		domain_range;
 	/* Probe buffer size */
-	__u32					probe_size;
+	__le32					probe_size;
 };
 
 /* Request types */
@@ -49,6 +54,7 @@ struct virtio_iommu_config {
 #define VIRTIO_IOMMU_S_RANGE			0x05
 #define VIRTIO_IOMMU_S_NOENT			0x06
 #define VIRTIO_IOMMU_S_FAULT			0x07
+#define VIRTIO_IOMMU_S_NOMEM			0x08
 
 struct virtio_iommu_req_head {
 	__u8					type;
@@ -78,12 +84,10 @@ struct virtio_iommu_req_detach {
 
 #define VIRTIO_IOMMU_MAP_F_READ			(1 << 0)
 #define VIRTIO_IOMMU_MAP_F_WRITE		(1 << 1)
-#define VIRTIO_IOMMU_MAP_F_EXEC			(1 << 2)
-#define VIRTIO_IOMMU_MAP_F_MMIO			(1 << 3)
+#define VIRTIO_IOMMU_MAP_F_MMIO			(1 << 2)
 
 #define VIRTIO_IOMMU_MAP_F_MASK			(VIRTIO_IOMMU_MAP_F_READ |	\
 						 VIRTIO_IOMMU_MAP_F_WRITE |	\
-						 VIRTIO_IOMMU_MAP_F_EXEC |	\
 						 VIRTIO_IOMMU_MAP_F_MMIO)
 
 struct virtio_iommu_req_map {
diff --git a/include/uapi/linux/virtio_pmem.h b/include/uapi/linux/virtio_pmem.h
index 9a63ed6d062f..b022787ffb94 100644
--- a/include/uapi/linux/virtio_pmem.h
+++ b/include/uapi/linux/virtio_pmem.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause */
 /*
  * Definitions for virtio-pmem devices.
  *
diff --git a/include/uapi/linux/vmcore.h b/include/uapi/linux/vmcore.h
index 022619668e0e..3e9da91866ff 100644
--- a/include/uapi/linux/vmcore.h
+++ b/include/uapi/linux/vmcore.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_VMCORE_H
 #define _UAPI_VMCORE_H
 
diff --git a/include/uapi/linux/wmi.h b/include/uapi/linux/wmi.h
index c36f2d7675a4..7085c5dca9fa 100644
--- a/include/uapi/linux/wmi.h
+++ b/include/uapi/linux/wmi.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
 /*
  *  User API methods for ACPI-WMI mapping driver
  *
diff --git a/include/uapi/misc/fastrpc.h b/include/uapi/misc/fastrpc.h
index 6d701af9fc42..fb792e882cef 100644
--- a/include/uapi/misc/fastrpc.h
+++ b/include/uapi/misc/fastrpc.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 
 #ifndef __QCOM_FASTRPC_H__
 #define __QCOM_FASTRPC_H__
diff --git a/include/uapi/rdma/rvt-abi.h b/include/uapi/rdma/rvt-abi.h
index 7328293c715c..7c05a02d2be5 100644
--- a/include/uapi/rdma/rvt-abi.h
+++ b/include/uapi/rdma/rvt-abi.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 
 /*
  * This file contains defines, structures, etc. that are used
diff --git a/include/uapi/rdma/siw-abi.h b/include/uapi/rdma/siw-abi.h
index 3dd8071ace7b..7de68f1dc707 100644
--- a/include/uapi/rdma/siw-abi.h
+++ b/include/uapi/rdma/siw-abi.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
+/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) or BSD-3-Clause */
 
 /* Authors: Bernard Metzler <bmt@zurich.ibm.com> */
 /* Copyright (c) 2008-2019, IBM Corporation */
diff --git a/include/uapi/scsi/scsi_bsg_ufs.h b/include/uapi/scsi/scsi_bsg_ufs.h
index 17c7abd0803a..9988db6ad244 100644
--- a/include/uapi/scsi/scsi_bsg_ufs.h
+++ b/include/uapi/scsi/scsi_bsg_ufs.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * UFS Transport SGIO v4 BSG Message Support
  *
diff --git a/include/uapi/sound/skl-tplg-interface.h b/include/uapi/sound/skl-tplg-interface.h
index f39352cef382..9eee32f5e407 100644
--- a/include/uapi/sound/skl-tplg-interface.h
+++ b/include/uapi/sound/skl-tplg-interface.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * skl-tplg-interface.h - Intel DSP FW private data interface
  *