Merging upstream version 4.19.282.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

40 files changed, 248 insertions, 75 deletions

diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index db72ad398..737f5cb0d 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -61,6 +61,12 @@ struct mmu_table_batch {
 extern void tlb_table_flush(struct mmu_gather *tlb);
 extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
 
+void tlb_remove_table_sync_one(void);
+
+#else
+
+static inline void tlb_remove_table_sync_one(void) { }
+
 #endif
 
 /*
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index e5f641cda..f9f85a466 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -329,19 +329,47 @@ struct drm_display_info {
 
 #define DRM_BUS_FLAG_DE_LOW		(1<<0)
 #define DRM_BUS_FLAG_DE_HIGH		(1<<1)
-/* drive data on pos. edge */
+
+/*
+ * Don't use those two flags directly, use the DRM_BUS_FLAG_PIXDATA_DRIVE_*
+ * and DRM_BUS_FLAG_PIXDATA_SAMPLE_* variants to qualify the flags explicitly.
+ * The DRM_BUS_FLAG_PIXDATA_SAMPLE_* flags are defined as the opposite of the
+ * DRM_BUS_FLAG_PIXDATA_DRIVE_* flags to make code simpler, as signals are
+ * usually to be sampled on the opposite edge of the driving edge.
+ */
 #define DRM_BUS_FLAG_PIXDATA_POSEDGE	(1<<2)
-/* drive data on neg. edge */
 #define DRM_BUS_FLAG_PIXDATA_NEGEDGE	(1<<3)
+
+/* Drive data on rising edge */
+#define DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE	DRM_BUS_FLAG_PIXDATA_POSEDGE
+/* Drive data on falling edge */
+#define DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE	DRM_BUS_FLAG_PIXDATA_NEGEDGE
+/* Sample data on rising edge */
+#define DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE	DRM_BUS_FLAG_PIXDATA_NEGEDGE
+/* Sample data on falling edge */
+#define DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE	DRM_BUS_FLAG_PIXDATA_POSEDGE
+
 /* data is transmitted MSB to LSB on the bus */
 #define DRM_BUS_FLAG_DATA_MSB_TO_LSB	(1<<4)
 /* data is transmitted LSB to MSB on the bus */
 #define DRM_BUS_FLAG_DATA_LSB_TO_MSB	(1<<5)
-/* drive sync on pos. edge */
+
+/*
+ * Similarly to the DRM_BUS_FLAG_PIXDATA_* flags, don't use these two flags
+ * directly, use one of the DRM_BUS_FLAG_SYNC_(DRIVE|SAMPLE)_* instead.
+ */
 #define DRM_BUS_FLAG_SYNC_POSEDGE	(1<<6)
-/* drive sync on neg. edge */
 #define DRM_BUS_FLAG_SYNC_NEGEDGE	(1<<7)
 
+/* Drive sync on rising edge */
+#define DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE		DRM_BUS_FLAG_SYNC_POSEDGE
+/* Drive sync on falling edge */
+#define DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE		DRM_BUS_FLAG_SYNC_NEGEDGE
+/* Sample sync on rising edge */
+#define DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE	DRM_BUS_FLAG_SYNC_NEGEDGE
+/* Sample sync on falling edge */
+#define DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE	DRM_BUS_FLAG_SYNC_POSEDGE
+
 	/**
 	 * @bus_flags: Additional information (like pixel signal polarity) for
 	 * the pixel data on the bus, using DRM_BUS_FLAGS\_ defines.
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 4fef19064..689f61547 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -274,6 +274,10 @@ int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi,
 					u16 brightness);
 int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,
 					u16 *brightness);
+int mipi_dsi_dcs_set_display_brightness_large(struct mipi_dsi_device *dsi,
+					     u16 brightness);
+int mipi_dsi_dcs_get_display_brightness_large(struct mipi_dsi_device *dsi,
+					     u16 *brightness);
 
 /**
  * struct mipi_dsi_driver - DSI driver
diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h
index 5755ae5a4..6a869682c 100644
--- a/include/linux/can/platform/sja1000.h
+++ b/include/linux/can/platform/sja1000.h
@@ -14,7 +14,7 @@
 #define OCR_MODE_TEST     0x01
 #define OCR_MODE_NORMAL   0x02
 #define OCR_MODE_CLOCK    0x03
-#define OCR_MODE_MASK     0x07
+#define OCR_MODE_MASK     0x03
 #define OCR_TX0_INVERT    0x04
 #define OCR_TX0_PULLDOWN  0x08
 #define OCR_TX0_PULLUP    0x10
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 934633a05..7f1478c26 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -40,14 +40,14 @@ static inline bool cpusets_enabled(void)
 
 static inline void cpuset_inc(void)
 {
-	static_branch_inc(&cpusets_pre_enable_key);
-	static_branch_inc(&cpusets_enabled_key);
+	static_branch_inc_cpuslocked(&cpusets_pre_enable_key);
+	static_branch_inc_cpuslocked(&cpusets_enabled_key);
 }
 
 static inline void cpuset_dec(void)
 {
-	static_branch_dec(&cpusets_enabled_key);
-	static_branch_dec(&cpusets_pre_enable_key);
+	static_branch_dec_cpuslocked(&cpusets_enabled_key);
+	static_branch_dec_cpuslocked(&cpusets_pre_enable_key);
 }
 
 extern int cpuset_init(void);
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 2a4638bb4..6ebc269e4 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -39,7 +39,7 @@ struct debugfs_regset32 {
 
 extern struct dentry *arch_debugfs_dir;
 
-#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)		\
+#define DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, __is_signed)	\
 static int __fops ## _open(struct inode *inode, struct file *file)	\
 {									\
 	__simple_attr_check_format(__fmt, 0ull);			\
@@ -50,10 +50,16 @@ static const struct file_operations __fops = {				\
 	.open	 = __fops ## _open,					\
 	.release = simple_attr_release,					\
 	.read	 = debugfs_attr_read,					\
-	.write	 = debugfs_attr_write,					\
+	.write	 = (__is_signed) ? debugfs_attr_write_signed : debugfs_attr_write,	\
 	.llseek  = no_llseek,						\
 }
 
+#define DEFINE_DEBUGFS_ATTRIBUTE(__fops, __get, __set, __fmt)		\
+	DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, false)
+
+#define DEFINE_DEBUGFS_ATTRIBUTE_SIGNED(__fops, __get, __set, __fmt)	\
+	DEFINE_DEBUGFS_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, true)
+
 typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
 
 #if defined(CONFIG_DEBUG_FS)
@@ -96,6 +102,8 @@ ssize_t debugfs_attr_read(struct file *file, char __user *buf,
 			size_t len, loff_t *ppos);
 ssize_t debugfs_attr_write(struct file *file, const char __user *buf,
 			size_t len, loff_t *ppos);
+ssize_t debugfs_attr_write_signed(struct file *file, const char __user *buf,
+			size_t len, loff_t *ppos);
 
 struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, const char *new_name);
@@ -246,6 +254,13 @@ static inline ssize_t debugfs_attr_write(struct file *file,
 	return -ENODEV;
 }
 
+static inline ssize_t debugfs_attr_write_signed(struct file *file,
+					const char __user *buf,
+					size_t len, loff_t *ppos)
+{
+	return -ENODEV;
+}
+
 static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
                 struct dentry *new_dir, char *new_name)
 {
diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
index dc4fd8a66..3482f9365 100644
--- a/include/linux/eventfd.h
+++ b/include/linux/eventfd.h
@@ -61,7 +61,7 @@ static inline struct eventfd_ctx *eventfd_ctx_fdget(int fd)
 	return ERR_PTR(-ENOSYS);
 }
 
-static inline int eventfd_signal(struct eventfd_ctx *ctx, int n)
+static inline int eventfd_signal(struct eventfd_ctx *ctx, __u64 n)
 {
 	return -ENOSYS;
 }
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 86f884e78..95b8ef09b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3353,7 +3353,7 @@ void simple_transaction_set(struct file *file, size_t n);
  * All attributes contain a text representation of a numeric value
  * that are accessed with the get() and set() functions.
  */
-#define DEFINE_SIMPLE_ATTRIBUTE(__fops, __get, __set, __fmt)		\
+#define DEFINE_SIMPLE_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, __is_signed)	\
 static int __fops ## _open(struct inode *inode, struct file *file)	\
 {									\
 	__simple_attr_check_format(__fmt, 0ull);			\
@@ -3364,10 +3364,16 @@ static const struct file_operations __fops = {				\
 	.open	 = __fops ## _open,					\
 	.release = simple_attr_release,					\
 	.read	 = simple_attr_read,					\
-	.write	 = simple_attr_write,					\
+	.write	 = (__is_signed) ? simple_attr_write_signed : simple_attr_write,	\
 	.llseek	 = generic_file_llseek,					\
 }
 
+#define DEFINE_SIMPLE_ATTRIBUTE(__fops, __get, __set, __fmt)		\
+	DEFINE_SIMPLE_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, false)
+
+#define DEFINE_SIMPLE_ATTRIBUTE_SIGNED(__fops, __get, __set, __fmt)	\
+	DEFINE_SIMPLE_ATTRIBUTE_XSIGNED(__fops, __get, __set, __fmt, true)
+
 static inline __printf(1, 2)
 void __simple_attr_check_format(const char *fmt, ...)
 {
@@ -3382,6 +3388,8 @@ ssize_t simple_attr_read(struct file *file, char __user *buf,
 			 size_t len, loff_t *ppos);
 ssize_t simple_attr_write(struct file *file, const char __user *buf,
 			  size_t len, loff_t *ppos);
+ssize_t simple_attr_write_signed(struct file *file, const char __user *buf,
+				 size_t len, loff_t *ppos);
 
 struct ctl_table;
 int proc_nr_files(struct ctl_table *table, int write,
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index dd16e8218..ed35a950c 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -689,7 +689,7 @@ static inline void __ftrace_enabled_restore(int enabled)
 #define CALLER_ADDR5 ((unsigned long)ftrace_return_address(5))
 #define CALLER_ADDR6 ((unsigned long)ftrace_return_address(6))
 
-static inline unsigned long get_lock_parent_ip(void)
+static __always_inline unsigned long get_lock_parent_ip(void)
 {
 	unsigned long addr = CALLER_ADDR0;
 
diff --git a/include/linux/hid.h b/include/linux/hid.h
index c51ebce21..79c6c3b4e 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -799,6 +799,7 @@ struct hid_driver {
  * @raw_request: send raw report request to device (e.g. feature report)
  * @output_report: send output report to device
  * @idle: send idle request to device
+ * @max_buffer_size: over-ride maximum data buffer size (default: HID_MAX_BUFFER_SIZE)
  */
 struct hid_ll_driver {
 	int (*start)(struct hid_device *hdev);
@@ -823,6 +824,8 @@ struct hid_ll_driver {
 	int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
 
 	int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
+
+	unsigned int max_buffer_size;
 };
 
 extern struct hid_ll_driver i2c_hid_ll_driver;
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index cb7dc38e9..354d320c3 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -7,6 +7,7 @@
 #include <linux/fs.h>
 #include <linux/hugetlb_inline.h>
 #include <linux/cgroup.h>
+#include <linux/page_ref.h>
 #include <linux/list.h>
 #include <linux/kref.h>
 #include <asm/pgtable.h>
@@ -404,7 +405,10 @@ static inline struct hstate *hstate_sizelog(int page_size_log)
 	if (!page_size_log)
 		return &default_hstate;
 
-	return size_to_hstate(1UL << page_size_log);
+	if (page_size_log < BITS_PER_LONG)
+		return size_to_hstate(1UL << page_size_log);
+
+	return NULL;
 }
 
 static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
@@ -626,4 +630,16 @@ static inline spinlock_t *huge_pte_lock(struct hstate *h,
 	return ptl;
 }
 
+#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
+static inline bool hugetlb_pmd_shared(pte_t *pte)
+{
+	return page_count(virt_to_page(pte)) > 1;
+}
+#else
+static inline bool hugetlb_pmd_shared(pte_t *pte)
+{
+	return false;
+}
+#endif
+
 #endif /* _LINUX_HUGETLB_H */
diff --git a/include/linux/ima.h b/include/linux/ima.h
index 97914a283..edd6d9195 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -19,7 +19,8 @@ struct linux_binprm;
 extern int ima_bprm_check(struct linux_binprm *bprm);
 extern int ima_file_check(struct file *file, int mask);
 extern void ima_file_free(struct file *file);
-extern int ima_file_mmap(struct file *file, unsigned long prot);
+extern int ima_file_mmap(struct file *file, unsigned long reqprot,
+			 unsigned long prot, unsigned long flags);
 extern int ima_load_data(enum kernel_load_data_id id);
 extern int ima_read_file(struct file *file, enum kernel_read_file_id id);
 extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
@@ -46,7 +47,8 @@ static inline void ima_file_free(struct file *file)
 	return;
 }
 
-static inline int ima_file_mmap(struct file *file, unsigned long prot)
+static inline int ima_file_mmap(struct file *file, unsigned long reqprot,
+				unsigned long prot, unsigned long flags)
 {
 	return 0;
 }
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 50733abbe..a28ec4c2f 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -327,6 +327,7 @@ extern long (*panic_blink)(int state);
 __printf(1, 2)
 void panic(const char *fmt, ...) __noreturn __cold;
 void nmi_panic(struct pt_regs *regs, const char *msg);
+void check_panic_on_warn(const char *origin);
 extern void oops_enter(void);
 extern void oops_exit(void);
 void print_oops_end_marker(void);
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 7ee2bb43b..f7f20cf1b 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -73,7 +73,7 @@ extern unsigned int kstat_irqs_usr(unsigned int irq);
 /*
  * Number of interrupts per cpu, since bootup
  */
-static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
+static inline unsigned long kstat_cpu_irqs_sum(unsigned int cpu)
 {
 	return kstat_cpu(cpu).irqs_sum;
 }
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 304e7a0f6..08875d2d5 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -331,6 +331,8 @@ extern int proc_kprobes_optimization_handler(struct ctl_table *table,
 					     size_t *length, loff_t *ppos);
 #endif
 extern void wait_for_kprobe_optimizer(void);
+bool optprobe_queued_unopt(struct optimized_kprobe *op);
+bool kprobe_disarmed(struct kprobe *p);
 #else
 static inline void wait_for_kprobe_optimizer(void) { }
 #endif /* CONFIG_OPTPROBES */
diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h
index 20f1e3ff6..591bc4cef 100644
--- a/include/linux/mbcache.h
+++ b/include/linux/mbcache.h
@@ -10,16 +10,29 @@
 
 struct mb_cache;
 
+/* Cache entry flags */
+enum {
+	MBE_REFERENCED_B = 0,
+	MBE_REUSABLE_B
+};
+
 struct mb_cache_entry {
 	/* List of entries in cache - protected by cache->c_list_lock */
 	struct list_head	e_list;
-	/* Hash table list - protected by hash chain bitlock */
+	/*
+	 * Hash table list - protected by hash chain bitlock. The entry is
+	 * guaranteed to be hashed while e_refcnt > 0.
+	 */
 	struct hlist_bl_node	e_hash_list;
+	/*
+	 * Entry refcount. Once it reaches zero, entry is unhashed and freed.
+	 * While refcount > 0, the entry is guaranteed to stay in the hash and
+	 * e.g. mb_cache_entry_try_delete() will fail.
+	 */
 	atomic_t		e_refcnt;
 	/* Key in hash - stable during lifetime of the entry */
 	u32			e_key;
-	u32			e_referenced:1;
-	u32			e_reusable:1;
+	unsigned long		e_flags;
 	/* User provided value - stable during lifetime of the entry */
 	u64			e_value;
 };
@@ -29,16 +42,24 @@ void mb_cache_destroy(struct mb_cache *cache);
 
 int mb_cache_entry_create(struct mb_cache *cache, gfp_t mask, u32 key,
 			  u64 value, bool reusable);
-void __mb_cache_entry_free(struct mb_cache_entry *entry);
-static inline int mb_cache_entry_put(struct mb_cache *cache,
-				     struct mb_cache_entry *entry)
+void __mb_cache_entry_free(struct mb_cache *cache,
+			   struct mb_cache_entry *entry);
+void mb_cache_entry_wait_unused(struct mb_cache_entry *entry);
+static inline void mb_cache_entry_put(struct mb_cache *cache,
+				      struct mb_cache_entry *entry)
 {
-	if (!atomic_dec_and_test(&entry->e_refcnt))
-		return 0;
-	__mb_cache_entry_free(entry);
-	return 1;
+	unsigned int cnt = atomic_dec_return(&entry->e_refcnt);
+
+	if (cnt > 0) {
+		if (cnt <= 2)
+			wake_up_var(&entry->e_refcnt);
+		return;
+	}
+	__mb_cache_entry_free(cache, entry);
 }
 
+struct mb_cache_entry *mb_cache_entry_delete_or_get(struct mb_cache *cache,
+						    u32 key, u64 value);
 void mb_cache_entry_delete(struct mb_cache *cache, u32 key, u64 value);
 struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *cache, u32 key,
 					  u64 value);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 8d48b352e..4d0f48e74 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -260,9 +260,11 @@ struct hh_cache {
  * relationship HH alignment <= LL alignment.
  */
 #define LL_RESERVED_SPACE(dev) \
-	((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+	((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom)) \
+	  & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
 #define LL_RESERVED_SPACE_EXTRA(dev,extra) \
-	((((dev)->hard_header_len+(dev)->needed_headroom+(extra))&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+	((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom) + (extra)) \
+	  & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
 
 struct header_ops {
 	int	(*create) (struct sk_buff *skb, struct net_device *dev,
diff --git a/include/linux/nospec.h b/include/linux/nospec.h
index 0c5ef54fd..207ef2a20 100644
--- a/include/linux/nospec.h
+++ b/include/linux/nospec.h
@@ -9,6 +9,10 @@
 
 struct task_struct;
 
+#ifndef barrier_nospec
+# define barrier_nospec() do { } while (0)
+#endif
+
 /**
  * array_index_mask_nospec() - generate a ~0 mask when index < size, 0 otherwise
  * @index: array element index
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 1658e9f8d..78c1cd4df 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -3097,6 +3097,8 @@
 
 #define PCI_VENDOR_ID_3COM_2		0xa727
 
+#define PCI_VENDOR_ID_SOLIDRUN		0xd063
+
 #define PCI_VENDOR_ID_DIGIUM		0xd161
 #define PCI_DEVICE_ID_DIGIUM_HFC4S	0xb410
 
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 42766e717..86a3792c5 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -667,6 +667,10 @@ struct phy_driver {
 #define PHY_ANY_ID "MATCH ANY PHY"
 #define PHY_ANY_UID 0xffffffff
 
+#define PHY_ID_MATCH_EXACT(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 0)
+#define PHY_ID_MATCH_MODEL(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 4)
+#define PHY_ID_MATCH_VENDOR(id) .phy_id = (id), .phy_id_mask = GENMASK(31, 10)
+
 /* A Structure for boards to register fixups with the PHY Lib */
 struct phy_fixup {
 	struct list_head list;
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 5141657a0..c16352fbb 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -117,8 +117,10 @@ static inline void proc_remove(struct proc_dir_entry *de) {}
 static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; }
 
 #define proc_create_net_data(name, mode, parent, ops, state_size, data) ({NULL;})
+#define proc_create_net_data_write(name, mode, parent, ops, write, state_size, data) ({NULL;})
 #define proc_create_net(name, mode, parent, state_size, ops) ({NULL;})
 #define proc_create_net_single(name, mode, parent, show, data) ({NULL;})
+#define proc_create_net_single_write(name, mode, parent, show, write, data) ({NULL;})
 
 #endif /* CONFIG_PROC_FS */
 
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 91e0b7624..ec10897f7 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -99,6 +99,8 @@ int dquot_file_open(struct inode *inode, struct file *file);
 
 int dquot_enable(struct inode *inode, int type, int format_id,
 	unsigned int flags);
+int dquot_load_quota_sb(struct super_block *sb, int type, int format_id,
+	unsigned int flags);
 int dquot_quota_on(struct super_block *sb, int type, int format_id,
 	const struct path *path);
 int dquot_quota_on_mount(struct super_block *sb, char *qf_name,
diff --git a/include/linux/random.h b/include/linux/random.h
index 3feafab49..ed75fb2b0 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -19,14 +19,14 @@ void add_input_randomness(unsigned int type, unsigned int code,
 void add_interrupt_randomness(int irq) __latent_entropy;
 void add_hwgenerator_randomness(const void *buf, size_t len, size_t entropy);
 
-#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__)
 static inline void add_latent_entropy(void)
 {
+#if defined(LATENT_ENTROPY_PLUGIN) && !defined(__CHECKER__)
 	add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
-}
 #else
-static inline void add_latent_entropy(void) { }
+	add_device_randomness(NULL, 0);
 #endif
+}
 
 void get_random_bytes(void *buf, size_t len);
 size_t __must_check get_random_bytes_arch(void *buf, size_t len);
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 91401309b..0ee9aab3e 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -36,6 +36,7 @@ extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
 extern void sched_dead(struct task_struct *p);
 
 void __noreturn do_task_dead(void);
+void __noreturn make_task_dead(int signr);
 
 extern void proc_caches_init(void);
 
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index c255273b0..37ad81058 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -97,7 +97,10 @@ struct intc_hw_desc {
 	unsigned int nr_subgroups;
 };
 
-#define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
+#define _INTC_SIZEOF_OR_ZERO(a) (_Generic(a,                 \
+                                 typeof(NULL):  0,           \
+                                 default:       sizeof(a)))
+#define _INTC_ARRAY(a) a, _INTC_SIZEOF_OR_ZERO(a)/sizeof(*a)
 
 #define INTC_HW_DESC(vectors, groups, mask_regs,	\
 		     prio_regs,	sense_regs, ack_regs)	\
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index e90b9bd99..396de2ef8 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -94,6 +94,11 @@ extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *,
 				       char __user *, size_t);
 extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *);
 
+/* returns true if the msg is in-flight, i.e., already eaten by the peer */
+static inline bool rpc_msg_is_inflight(const struct rpc_pipe_msg *msg) {
+	return (msg->copied != 0 && list_empty(&msg->list));
+}
+
 struct rpc_clnt;
 extern struct dentry *rpc_create_client_dir(struct dentry *, const char *, struct rpc_clnt *);
 extern int rpc_remove_client_dir(struct rpc_clnt *);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index b769ecfcc..0a980aecc 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -198,6 +198,9 @@ struct ctl_table_header *register_sysctl_paths(const struct ctl_path *path,
 void unregister_sysctl_table(struct ctl_table_header * table);
 
 extern int sysctl_init(void);
+extern void __register_sysctl_init(const char *path, struct ctl_table *table,
+				 const char *table_name);
+#define register_sysctl_init(path, table) __register_sysctl_init(path, table, #table)
 
 extern struct ctl_table sysctl_mount_point[];
 
diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h
index aff122f10..e1a843cb1 100644
--- a/include/linux/timerqueue.h
+++ b/include/linux/timerqueue.h
@@ -35,7 +35,7 @@ struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head)
 {
 	struct rb_node *leftmost = rb_first_cached(&head->rb_root);
 
-	return rb_entry(leftmost, struct timerqueue_node, node);
+	return rb_entry_safe(leftmost, struct timerqueue_node, node);
 }
 
 static inline void timerqueue_init(struct timerqueue_node *node)
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 4251cbfdb..bff2f76ae 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -233,12 +233,11 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
  * not add unwanted padding between the beginning of the section and the
  * structure. Force alignment to the same alignment as the section start.
  *
- * When lockdep is enabled, we make sure to always do the RCU portions of
- * the tracepoint code, regardless of whether tracing is on. However,
- * don't check if the condition is false, due to interaction with idle
- * instrumentation. This lets us find RCU issues triggered with tracepoints
- * even when this tracepoint is off. This code has no purpose other than
- * poking RCU a bit.
+ * When lockdep is enabled, we make sure to always test if RCU is
+ * "watching" regardless if the tracepoint is enabled or not. Tracepoints
+ * require RCU to be active, and it should always warn at the tracepoint
+ * site if it is not watching, as it will need to be active when the
+ * tracepoint is enabled.
  */
 #define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
 	extern struct tracepoint __tracepoint_##name;			\
@@ -250,9 +249,7 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p)
 				TP_ARGS(data_args),			\
 				TP_CONDITION(cond), 0);			\
 		if (IS_ENABLED(CONFIG_LOCKDEP) && (cond)) {		\
-			rcu_read_lock_sched_notrace();			\
-			rcu_dereference_sched(__tracepoint_##name.funcs);\
-			rcu_read_unlock_sched_notrace();		\
+			WARN_ON_ONCE(!rcu_is_watching());		\
 		}							\
 	}								\
 	__DECLARE_TRACE_RCU(name, PARAMS(proto), PARAMS(args),		\
diff --git a/include/media/dvbdev.h b/include/media/dvbdev.h
index 881ca461b..09279ed00 100644
--- a/include/media/dvbdev.h
+++ b/include/media/dvbdev.h
@@ -126,6 +126,7 @@ struct dvb_adapter {
  * struct dvb_device - represents a DVB device node
  *
  * @list_head:	List head with all DVB devices
+ * @ref:	reference counter
  * @fops:	pointer to struct file_operations
  * @adapter:	pointer to the adapter that holds this device node
  * @type:	type of the device, as defined by &enum dvb_device_type.
@@ -156,6 +157,7 @@ struct dvb_adapter {
  */
 struct dvb_device {
 	struct list_head list_head;
+	struct kref ref;
 	const struct file_operations *fops;
 	struct dvb_adapter *adapter;
 	enum dvb_device_type type;
@@ -188,6 +190,20 @@ struct dvb_device {
 };
 
 /**
+ * dvb_device_get - Increase dvb_device reference
+ *
+ * @dvbdev:	pointer to struct dvb_device
+ */
+struct dvb_device *dvb_device_get(struct dvb_device *dvbdev);
+
+/**
+ * dvb_device_put - Decrease dvb_device reference
+ *
+ * @dvbdev:	pointer to struct dvb_device
+ */
+void dvb_device_put(struct dvb_device *dvbdev);
+
+/**
  * dvb_register_adapter - Registers a new DVB adapter
  *
  * @adap:	pointer to struct dvb_adapter
@@ -231,29 +247,17 @@ int dvb_register_device(struct dvb_adapter *adap,
 /**
  * dvb_remove_device - Remove a registered DVB device
  *
- * This does not free memory.  To do that, call dvb_free_device().
+ * This does not free memory. dvb_free_device() will do that when
+ * reference counter is empty
  *
  * @dvbdev:	pointer to struct dvb_device
  */
 void dvb_remove_device(struct dvb_device *dvbdev);
 
-/**
- * dvb_free_device - Free memory occupied by a DVB device.
- *
- * Call dvb_unregister_device() before calling this function.
- *
- * @dvbdev:	pointer to struct dvb_device
- */
-void dvb_free_device(struct dvb_device *dvbdev);
 
 /**
  * dvb_unregister_device - Unregisters a DVB device
  *
- * This is a combination of dvb_remove_device() and dvb_free_device().
- * Using this function is usually a mistake, and is often an indicator
- * for a use-after-free bug (when a userspace process keeps a file
- * handle to a detached device).
- *
  * @dvbdev:	pointer to struct dvb_device
  */
 void dvb_unregister_device(struct dvb_device *dvbdev);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4c2e40882..0c8832498 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1040,6 +1040,8 @@ void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
 void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
 void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
 
+void inet6_cleanup_sock(struct sock *sk);
+void inet6_sock_destruct(struct sock *sk);
 int inet6_release(struct socket *sock);
 int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
 int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
diff --git a/include/net/mrp.h b/include/net/mrp.h
index ef58b4a07..c6c53370e 100644
--- a/include/net/mrp.h
+++ b/include/net/mrp.h
@@ -120,6 +120,7 @@ struct mrp_applicant {
 	struct sk_buff		*pdu;
 	struct rb_root		mad;
 	struct rcu_head		rcu;
+	bool			active;
 };
 
 struct mrp_port {
diff --git a/include/net/sock.h b/include/net/sock.h
index 30315a03b..9eb656683 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2134,6 +2134,19 @@ static inline void skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
 	sk_mem_charge(sk, skb->truesize);
 }
 
+static inline struct sk_buff *skb_clone_and_charge_r(struct sk_buff *skb, struct sock *sk)
+{
+	skb = skb_clone(skb, sk_gfp_mask(sk, GFP_ATOMIC));
+	if (skb) {
+		if (sk_rmem_schedule(sk, skb, skb->truesize)) {
+			skb_set_owner_r(skb, sk);
+			return skb;
+		}
+		__kfree_skb(skb);
+	}
+	return NULL;
+}
+
 void sk_reset_timer(struct sock *sk, struct timer_list *timer,
 		    unsigned long expires);
 
diff --git a/include/net/udp.h b/include/net/udp.h
index 618c83bea..48d881224 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -254,7 +254,7 @@ static inline int udp_rqueue_get(struct sock *sk)
 }
 
 /* net/ipv4/udp.c */
-void udp_destruct_sock(struct sock *sk);
+void udp_destruct_common(struct sock *sk);
 void skb_consume_udp(struct sock *sk, struct sk_buff *skb, int len);
 int __udp_enqueue_schedule_skb(struct sock *sk, struct sk_buff *skb);
 void udp_skb_destructor(struct sock *sk, struct sk_buff *skb);
diff --git a/include/net/udplite.h b/include/net/udplite.h
index 9185e45b9..c59ba8666 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -24,14 +24,6 @@ static __inline__ int udplite_getfrag(void *from, char *to, int  offset,
 	return copy_from_iter_full(to, len, &msg->msg_iter) ? 0 : -EFAULT;
 }
 
-/* Designate sk as UDP-Lite socket */
-static inline int udplite_sk_init(struct sock *sk)
-{
-	udp_init_sock(sk);
-	udp_sk(sk)->pcflag = UDPLITE_BIT;
-	return 0;
-}
-
 /*
  * 	Checksumming routines
  */
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 52e6456bd..098d6dff2 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -498,7 +498,7 @@ TRACE_EVENT(f2fs_truncate_partial_nodes,
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(nid_t,	nid[3])
+		__array(nid_t,	nid, 3)
 		__field(int,	depth)
 		__field(int,	err)
 	),
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index 7272f85d6..3736f2fe1 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -3,7 +3,7 @@
 #define _UAPI_LINUX_SWAB_H
 
 #include <linux/types.h>
-#include <linux/compiler.h>
+#include <linux/stddef.h>
 #include <asm/bitsperlong.h>
 #include <asm/swab.h>
 
diff --git a/include/uapi/linux/usb/video.h b/include/uapi/linux/usb/video.h
index ff6cc6cb4..0c5087c39 100644
--- a/include/uapi/linux/usb/video.h
+++ b/include/uapi/linux/usb/video.h
@@ -179,6 +179,36 @@
 #define UVC_CONTROL_CAP_AUTOUPDATE			(1 << 3)
 #define UVC_CONTROL_CAP_ASYNCHRONOUS			(1 << 4)
 
+/* 3.9.2.6 Color Matching Descriptor Values */
+enum uvc_color_primaries_values {
+	UVC_COLOR_PRIMARIES_UNSPECIFIED,
+	UVC_COLOR_PRIMARIES_BT_709_SRGB,
+	UVC_COLOR_PRIMARIES_BT_470_2_M,
+	UVC_COLOR_PRIMARIES_BT_470_2_B_G,
+	UVC_COLOR_PRIMARIES_SMPTE_170M,
+	UVC_COLOR_PRIMARIES_SMPTE_240M,
+};
+
+enum uvc_transfer_characteristics_values {
+	UVC_TRANSFER_CHARACTERISTICS_UNSPECIFIED,
+	UVC_TRANSFER_CHARACTERISTICS_BT_709,
+	UVC_TRANSFER_CHARACTERISTICS_BT_470_2_M,
+	UVC_TRANSFER_CHARACTERISTICS_BT_470_2_B_G,
+	UVC_TRANSFER_CHARACTERISTICS_SMPTE_170M,
+	UVC_TRANSFER_CHARACTERISTICS_SMPTE_240M,
+	UVC_TRANSFER_CHARACTERISTICS_LINEAR,
+	UVC_TRANSFER_CHARACTERISTICS_SRGB,
+};
+
+enum uvc_matrix_coefficients {
+	UVC_MATRIX_COEFFICIENTS_UNSPECIFIED,
+	UVC_MATRIX_COEFFICIENTS_BT_709,
+	UVC_MATRIX_COEFFICIENTS_FCC,
+	UVC_MATRIX_COEFFICIENTS_BT_470_2_B_G,
+	UVC_MATRIX_COEFFICIENTS_SMPTE_170M,
+	UVC_MATRIX_COEFFICIENTS_SMPTE_240M,
+};
+
 /* ------------------------------------------------------------------------
  * UVC structures
  */
diff --git a/include/uapi/linux/uvcvideo.h b/include/uapi/linux/uvcvideo.h
index f80f05b3c..214092366 100644
--- a/include/uapi/linux/uvcvideo.h
+++ b/include/uapi/linux/uvcvideo.h
@@ -86,7 +86,7 @@ struct uvc_xu_control_query {
  * struct. The first two fields are added by the driver, they can be used for
  * clock synchronisation. The rest is an exact copy of a UVC payload header.
  * Only complete objects with complete buffers are included. Therefore it's
- * always sizeof(meta->ts) + sizeof(meta->sof) + meta->length bytes large.
+ * always sizeof(meta->ns) + sizeof(meta->sof) + meta->length bytes large.
  */
 struct uvc_meta_buf {
 	__u64 ns;
diff --git a/include/uapi/sound/asequencer.h b/include/uapi/sound/asequencer.h
index a75e14edc..dbd60f48b 100644
--- a/include/uapi/sound/asequencer.h
+++ b/include/uapi/sound/asequencer.h
@@ -344,10 +344,10 @@ typedef int __bitwise snd_seq_client_type_t;
 #define	KERNEL_CLIENT	((__force snd_seq_client_type_t) 2)
                         
 	/* event filter flags */
-#define SNDRV_SEQ_FILTER_BROADCAST	(1<<0)	/* accept broadcast messages */
-#define SNDRV_SEQ_FILTER_MULTICAST	(1<<1)	/* accept multicast messages */
-#define SNDRV_SEQ_FILTER_BOUNCE		(1<<2)	/* accept bounce event in error */
-#define SNDRV_SEQ_FILTER_USE_EVENT	(1<<31)	/* use event filter */
+#define SNDRV_SEQ_FILTER_BROADCAST	(1U<<0)	/* accept broadcast messages */
+#define SNDRV_SEQ_FILTER_MULTICAST	(1U<<1)	/* accept multicast messages */
+#define SNDRV_SEQ_FILTER_BOUNCE		(1U<<2)	/* accept bounce event in error */
+#define SNDRV_SEQ_FILTER_USE_EVENT	(1U<<31)	/* use event filter */
 
 struct snd_seq_client_info {
 	int client;			/* client number to inquire */