72 files changed, 573 insertions, 322 deletions

diff --git a/include/acpi/button.h b/include/acpi/button.h
index 97eea0e4c016..1cad8b2d460c 100644
--- a/include/acpi/button.h
+++ b/include/acpi/button.h
@@ -3,7 +3,7 @@
 
 #include <linux/notifier.h>
 
-#if defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE)
+#if IS_ENABLED(CONFIG_ACPI_BUTTON)
 extern int acpi_lid_notifier_register(struct notifier_block *nb);
 extern int acpi_lid_notifier_unregister(struct notifier_block *nb);
 extern int acpi_lid_open(void);
@@ -20,6 +20,6 @@ static inline int acpi_lid_open(void)
 {
         return 1;
 }
-#endif /* defined(CONFIG_ACPI_BUTTON) || defined(CONFIG_ACPI_BUTTON_MODULE) */
+#endif /* IS_ENABLED(CONFIG_ACPI_BUTTON) */
 
 #endif /* ACPI_BUTTON_H */
diff --git a/include/acpi/video.h b/include/acpi/video.h
index e840b294c6f5..c62392d9b52a 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -24,7 +24,7 @@ enum acpi_backlight_type {
         acpi_backlight_native,
 };
 
-#if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
+#if IS_ENABLED(CONFIG_ACPI_VIDEO)
 extern int acpi_video_register(void);
 extern void acpi_video_unregister(void);
 extern int acpi_video_get_edid(struct acpi_device *device, int type,
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index f20f407ce45d..4b4b056a6eb0 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -73,7 +73,7 @@
  * Convert a physical address to a Page Frame Number and back
  */
 #define __phys_to_pfn(paddr)    ((unsigned long)((paddr) >> PAGE_SHIFT))
-#define __pfn_to_phys(pfn)      ((pfn) << PAGE_SHIFT)
+#define __pfn_to_phys(pfn)      PFN_PHYS(pfn)
 
 #define page_to_pfn __page_to_pfn
 #define pfn_to_page __pfn_to_page
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 83bfb87f5bf1..e2aadbc7151f 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -111,8 +111,8 @@ static inline void queued_spin_unlock_wait(struct qspinlock *lock)
                 cpu_relax();
 }
 
-#ifndef virt_queued_spin_lock
-static __always_inline bool virt_queued_spin_lock(struct qspinlock *lock)
+#ifndef virt_spin_lock
+static __always_inline bool virt_spin_lock(struct qspinlock *lock)
 {
         return false;
 }
diff --git a/include/asm-generic/word-at-a-time.h b/include/asm-generic/word-at-a-time.h
index 94f9ea8abcae..011dde083f23 100644
--- a/include/asm-generic/word-at-a-time.h
+++ b/include/asm-generic/word-at-a-time.h
@@ -1,15 +1,10 @@
 #ifndef _ASM_WORD_AT_A_TIME_H
 #define _ASM_WORD_AT_A_TIME_H
 
-/*
- * This says "generic", but it's actually big-endian only.
- * Little-endian can use more efficient versions of these
- * interfaces, see for example
- *       arch/x86/include/asm/word-at-a-time.h
- * for those.
- */
-
 #include <linux/kernel.h>
+#include <asm/byteorder.h>
+
+#ifdef __BIG_ENDIAN
 
 struct word_at_a_time {
         const unsigned long high_bits, low_bits;
@@ -53,4 +48,73 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct
 #define zero_bytemask(mask) (~1ul << __fls(mask))
 #endif
 
+#else
+
+/*
+ * The optimal byte mask counting is probably going to be something
+ * that is architecture-specific. If you have a reliably fast
+ * bit count instruction, that might be better than the multiply
+ * and shift, for example.
+ */
+struct word_at_a_time {
+        const unsigned long one_bits, high_bits;
+};
+
+#define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
+
+#ifdef CONFIG_64BIT
+
+/*
+ * Jan Achrenius on G+: microoptimized version of
+ * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56"
+ * that works for the bytemasks without having to
+ * mask them first.
+ */
+static inline long count_masked_bytes(unsigned long mask)
+{
+        return mask*0x0001020304050608ul >> 56;
+}
+
+#else   /* 32-bit case */
+
+/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */
+static inline long count_masked_bytes(long mask)
+{
+        /* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */
+        long a = (0x0ff0001+mask) >> 23;
+        /* Fix the 1 for 00 case */
+        return a & mask;
+}
+
+#endif
+
+/* Return nonzero if it has a zero */
+static inline unsigned long has_zero(unsigned long a, unsigned long *bits, const struct word_at_a_time *c)
+{
+        unsigned long mask = ((a - c->one_bits) & ~a) & c->high_bits;
+        *bits = mask;
+        return mask;
+}
+
+static inline unsigned long prep_zero_mask(unsigned long a, unsigned long bits, const struct word_at_a_time *c)
+{
+        return bits;
+}
+
+static inline unsigned long create_zero_mask(unsigned long bits)
+{
+        bits = (bits - 1) & ~bits;
+        return bits >> 7;
+}
+
+/* The mask we created is directly usable as a bytemask */
+#define zero_bytemask(mask) (mask)
+
+static inline unsigned long find_zero(unsigned long mask)
+{
+        return count_masked_bytes(mask);
+}
+
+#endif /* __BIG_ENDIAN */
+
 #endif /* _ASM_WORD_AT_A_TIME_H */
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 2a747a91fded..3febb4b9fce9 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -240,5 +240,6 @@ extern void drm_kms_helper_hotplug_event(struct drm_device *dev);
 
 extern void drm_kms_helper_poll_disable(struct drm_device *dev);
 extern void drm_kms_helper_poll_enable(struct drm_device *dev);
+extern void drm_kms_helper_poll_enable_locked(struct drm_device *dev);
 
 #endif
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 499e9f625aef..0212d139a480 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -568,6 +568,10 @@
 #define MODE_I2C_READ   4
 #define MODE_I2C_STOP   8
 
+/* DP 1.2 MST PORTs - Section 2.5.1 v1.2a spec */
+#define DP_MST_PHYSICAL_PORT_0 0
+#define DP_MST_LOGICAL_PORT_0 8
+
 #define DP_LINK_STATUS_SIZE        6
 bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
                           int lane_count);
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 86d0b25ed054..5340099741ae 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -253,6 +253,7 @@ struct drm_dp_remote_dpcd_write {
         u8 *bytes;
 };
 
+#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
 struct drm_dp_remote_i2c_read {
         u8 num_transactions;
         u8 port_number;
@@ -262,7 +263,7 @@ struct drm_dp_remote_i2c_read {
                 u8 *bytes;
                 u8 no_stop_bit;
                 u8 i2c_transaction_delay;
-        } transactions[4];
+        } transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
         u8 read_i2c_device_id;
         u8 num_bytes_read;
 };
@@ -374,6 +375,7 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
         /* create a connector for a port */
         struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+        void (*register_connector)(struct drm_connector *connector);
         void (*destroy_connector)(struct drm_dp_mst_topology_mgr *mgr,
                                   struct drm_connector *connector);
         void (*hotplug)(struct drm_dp_mst_topology_mgr *mgr);
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index d901f1a47be6..4e14dac282bb 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -35,11 +35,7 @@
 #define VGIC_V3_MAX_LRS         16
 #define VGIC_MAX_IRQS           1024
 #define VGIC_V2_MAX_CPUS        8
-
-/* Sanity checks... */
-#if (KVM_MAX_VCPUS > 255)
-#error Too many KVM VCPUs, the VGIC only supports up to 255 VCPUs for now
-#endif
+#define VGIC_V3_MAX_CPUS        255
 
 #if (VGIC_NR_IRQS_LEGACY & 31)
 #error "VGIC_NR_IRQS must be a multiple of 32"
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 7235c4851460..43856d19cf4d 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -217,6 +217,7 @@ struct pci_dev;
 
 int acpi_pci_irq_enable (struct pci_dev *dev);
 void acpi_penalize_isa_irq(int irq, int active);
+bool acpi_isa_irq_available(int irq);
 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
 void acpi_pci_irq_disable (struct pci_dev *dev);
 
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index a23209b43842..1b4d69f68c33 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -116,6 +116,8 @@ struct bdi_writeback {
         struct list_head work_list;
         struct delayed_work dwork;      /* work item used for writeback */
 
+        struct list_head bdi_node;      /* anchored at bdi->wb_list */
+
 #ifdef CONFIG_CGROUP_WRITEBACK
         struct percpu_ref refcnt;       /* used only for !root wb's */
         struct fprop_local_percpu memcg_completions;
@@ -150,6 +152,7 @@ struct backing_dev_info {
         atomic_long_t tot_write_bandwidth;
 
         struct bdi_writeback wb;  /* the root writeback info for this bdi */
+        struct list_head wb_list; /* list of all wbs */
 #ifdef CONFIG_CGROUP_WRITEBACK
         struct radix_tree_root cgwb_tree; /* radix tree of active cgroup wbs */
         struct rb_root cgwb_congested_tree; /* their congested states */
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 5a5d79ee256f..c85f74946a8b 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -13,18 +13,23 @@
 #include <linux/sched.h>
 #include <linux/blkdev.h>
 #include <linux/writeback.h>
+#include <linux/memcontrol.h>
 #include <linux/blk-cgroup.h>
 #include <linux/backing-dev-defs.h>
 #include <linux/slab.h>
 
 int __must_check bdi_init(struct backing_dev_info *bdi);
-void bdi_destroy(struct backing_dev_info *bdi);
+void bdi_exit(struct backing_dev_info *bdi);
 
 __printf(3, 4)
 int bdi_register(struct backing_dev_info *bdi, struct device *parent,
                 const char *fmt, ...);
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
+void bdi_unregister(struct backing_dev_info *bdi);
+
 int __must_check bdi_setup_and_register(struct backing_dev_info *, char *);
+void bdi_destroy(struct backing_dev_info *bdi);
+
 void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
                         bool range_cyclic, enum wb_reason reason);
 void wb_start_background_writeback(struct bdi_writeback *wb);
@@ -252,13 +257,19 @@ int inode_congested(struct inode *inode, int cong_bits);
  * @inode: inode of interest
  *
  * cgroup writeback requires support from both the bdi and filesystem.
- * Test whether @inode has both.
+ * Also, both memcg and iocg have to be on the default hierarchy.  Test
+ * whether all conditions are met.
+ *
+ * Note that the test result may change dynamically on the same inode
+ * depending on how memcg and iocg are configured.
  */
 static inline bool inode_cgwb_enabled(struct inode *inode)
 {
         struct backing_dev_info *bdi = inode_to_bdi(inode);
 
-        return bdi_cap_account_dirty(bdi) &&
+        return cgroup_on_dfl(mem_cgroup_root_css->cgroup) &&
+                cgroup_on_dfl(blkcg_root_css->cgroup) &&
+                bdi_cap_account_dirty(bdi) &&
                 (bdi->capabilities & BDI_CAP_CGROUP_WRITEBACK) &&
                 (inode->i_sb->s_iflags & SB_I_CGROUPWB);
 }
@@ -401,61 +412,6 @@ static inline void unlocked_inode_to_wb_end(struct inode *inode, bool locked)
         rcu_read_unlock();
 }
 
-struct wb_iter {
-        int                     start_memcg_id;
-        struct radix_tree_iter  tree_iter;
-        void                    **slot;
-};
-
-static inline struct bdi_writeback *__wb_iter_next(struct wb_iter *iter,
-                                                   struct backing_dev_info *bdi)
-{
-        struct radix_tree_iter *titer = &iter->tree_iter;
-
-        WARN_ON_ONCE(!rcu_read_lock_held());
-
-        if (iter->start_memcg_id >= 0) {
-                iter->slot = radix_tree_iter_init(titer, iter->start_memcg_id);
-                iter->start_memcg_id = -1;
-        } else {
-                iter->slot = radix_tree_next_slot(iter->slot, titer, 0);
-        }
-
-        if (!iter->slot)
-                iter->slot = radix_tree_next_chunk(&bdi->cgwb_tree, titer, 0);
-        if (iter->slot)
-                return *iter->slot;
-        return NULL;
-}
-
-static inline struct bdi_writeback *__wb_iter_init(struct wb_iter *iter,
-                                                   struct backing_dev_info *bdi,
-                                                   int start_memcg_id)
-{
-        iter->start_memcg_id = start_memcg_id;
-
-        if (start_memcg_id)
-                return __wb_iter_next(iter, bdi);
-        else
-                return &bdi->wb;
-}
-
-/**
- * bdi_for_each_wb - walk all wb's of a bdi in ascending memcg ID order
- * @wb_cur: cursor struct bdi_writeback pointer
- * @bdi: bdi to walk wb's of
- * @iter: pointer to struct wb_iter to be used as iteration buffer
- * @start_memcg_id: memcg ID to start iteration from
- *
- * Iterate @wb_cur through the wb's (bdi_writeback's) of @bdi in ascending
- * memcg ID order starting from @start_memcg_id.  @iter is struct wb_iter
- * to be used as temp storage during iteration.  rcu_read_lock() must be
- * held throughout iteration.
- */
-#define bdi_for_each_wb(wb_cur, bdi, iter, start_memcg_id)              \
-        for ((wb_cur) = __wb_iter_init(iter, bdi, start_memcg_id);      \
-             (wb_cur); (wb_cur) = __wb_iter_next(iter, bdi))
-
 #else   /* CONFIG_CGROUP_WRITEBACK */
 
 static inline bool inode_cgwb_enabled(struct inode *inode)
@@ -515,14 +471,6 @@ static inline void wb_blkcg_offline(struct blkcg *blkcg)
 {
 }
 
-struct wb_iter {
-        int             next_id;
-};
-
-#define bdi_for_each_wb(wb_cur, bdi, iter, start_blkcg_id)              \
-        for ((iter)->next_id = (start_blkcg_id);                        \
-             ({ (wb_cur) = !(iter)->next_id++ ? &(bdi)->wb : NULL; }); )
-
 static inline int inode_congested(struct inode *inode, int cong_bits)
 {
         return wb_congested(&inode_to_bdi(inode)->wb, cong_bits);
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 0a5cc7a1109b..c02e669945e9 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -713,9 +713,9 @@ static inline bool blkcg_bio_issue_check(struct request_queue *q,
 
         if (!throtl) {
                 blkg = blkg ?: q->root_blkg;
-                blkg_rwstat_add(&blkg->stat_bytes, bio->bi_flags,
+                blkg_rwstat_add(&blkg->stat_bytes, bio->bi_rw,
                                 bio->bi_iter.bi_size);
-                blkg_rwstat_add(&blkg->stat_ios, bio->bi_flags, 1);
+                blkg_rwstat_add(&blkg->stat_ios, bio->bi_rw, 1);
         }
 
         rcu_read_unlock();
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 37d1602c4f7a..5e7d43ab61c0 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -145,7 +145,6 @@ enum {
         BLK_MQ_F_SHOULD_MERGE   = 1 << 0,
         BLK_MQ_F_TAG_SHARED     = 1 << 1,
         BLK_MQ_F_SG_MERGE       = 1 << 2,
-        BLK_MQ_F_SYSFS_UP       = 1 << 3,
         BLK_MQ_F_DEFER_ISSUE    = 1 << 4,
         BLK_MQ_F_ALLOC_POLICY_START_BIT = 8,
         BLK_MQ_F_ALLOC_POLICY_BITS = 1,
@@ -215,7 +214,7 @@ void blk_mq_add_to_requeue_list(struct request *rq, bool at_head);
 void blk_mq_cancel_requeue_work(struct request_queue *q);
 void blk_mq_kick_requeue_list(struct request_queue *q);
 void blk_mq_abort_requeue_list(struct request_queue *q);
-void blk_mq_complete_request(struct request *rq);
+void blk_mq_complete_request(struct request *rq, int error);
 
 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);
 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx);
@@ -224,8 +223,6 @@ void blk_mq_start_hw_queues(struct request_queue *q);
 void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async);
 void blk_mq_run_hw_queues(struct request_queue *q, bool async);
 void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs);
-void blk_mq_tag_busy_iter(struct blk_mq_hw_ctx *hctx, busy_iter_fn *fn,
-                void *priv);
 void blk_mq_all_tag_busy_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
                 void *priv);
 void blk_mq_freeze_queue(struct request_queue *q);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 38a5ff772a37..19c2e947d4d1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -456,6 +456,8 @@ struct request_queue {
         struct blk_mq_tag_set   *tag_set;
         struct list_head        tag_set_list;
         struct bio_set          *bio_split;
+
+        bool                    mq_sysfs_init_done;
 };
 
 #define QUEUE_FLAG_QUEUED       1       /* uses generic tag queueing */
@@ -1368,6 +1370,26 @@ static inline bool bvec_gap_to_prev(struct request_queue *q,
                 ((bprv->bv_offset + bprv->bv_len) & queue_virt_boundary(q));
 }
 
+static inline bool bio_will_gap(struct request_queue *q, struct bio *prev,
+                         struct bio *next)
+{
+        if (!bio_has_data(prev))
+                return false;
+
+        return bvec_gap_to_prev(q, &prev->bi_io_vec[prev->bi_vcnt - 1],
+                                next->bi_io_vec[0].bv_offset);
+}
+
+static inline bool req_gap_back_merge(struct request *req, struct bio *bio)
+{
+        return bio_will_gap(req->q, req->biotail, bio);
+}
+
+static inline bool req_gap_front_merge(struct request *req, struct bio *bio)
+{
+        return bio_will_gap(req->q, bio, req->bio);
+}
+
 struct work_struct;
 int kblockd_schedule_work(struct work_struct *work);
 int kblockd_schedule_delayed_work(struct delayed_work *dwork, unsigned long delay);
@@ -1494,6 +1516,26 @@ queue_max_integrity_segments(struct request_queue *q)
         return q->limits.max_integrity_segments;
 }
 
+static inline bool integrity_req_gap_back_merge(struct request *req,
+                                                struct bio *next)
+{
+        struct bio_integrity_payload *bip = bio_integrity(req->bio);
+        struct bio_integrity_payload *bip_next = bio_integrity(next);
+
+        return bvec_gap_to_prev(req->q, &bip->bip_vec[bip->bip_vcnt - 1],
+                                bip_next->bip_vec[0].bv_offset);
+}
+
+static inline bool integrity_req_gap_front_merge(struct request *req,
+                                                 struct bio *bio)
+{
+        struct bio_integrity_payload *bip = bio_integrity(bio);
+        struct bio_integrity_payload *bip_next = bio_integrity(req->bio);
+
+        return bvec_gap_to_prev(req->q, &bip->bip_vec[bip->bip_vcnt - 1],
+                                bip_next->bip_vec[0].bv_offset);
+}
+
 #else /* CONFIG_BLK_DEV_INTEGRITY */
 
 struct bio;
@@ -1560,6 +1602,16 @@ static inline bool blk_integrity_is_initialized(struct gendisk *g)
 {
         return 0;
 }
+static inline bool integrity_req_gap_back_merge(struct request *req,
+                                                struct bio *next)
+{
+        return false;
+}
+static inline bool integrity_req_gap_front_merge(struct request *req,
+                                                 struct bio *bio)
+{
+        return false;
+}
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index 4763ad64e832..f89b31d45cc8 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -107,6 +107,7 @@ static inline u64 ceph_sanitize_features(u64 features)
          CEPH_FEATURE_OSDMAP_ENC |              \
          CEPH_FEATURE_CRUSH_TUNABLES3 |         \
          CEPH_FEATURE_OSD_PRIMARY_AFFINITY |    \
+         CEPH_FEATURE_MSGR_KEEPALIVE2 |         \
          CEPH_FEATURE_CRUSH_V4)
 
 #define CEPH_FEATURES_REQUIRED_DEFAULT   \
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index 7e1252e97a30..b2371d9b51fa 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -238,6 +238,8 @@ struct ceph_connection {
         bool out_kvec_is_msg; /* kvec refers to out_msg */
         int out_more;        /* there is more data after the kvecs */
         __le64 out_temp_ack; /* for writing an ack */
+        struct ceph_timespec out_temp_keepalive2; /* for writing keepalive2
+                                                     stamp */
 
         /* message in temps */
         struct ceph_msg_header in_hdr;
@@ -248,7 +250,7 @@ struct ceph_connection {
         int in_base_pos;     /* bytes read */
         __le64 in_temp_ack;  /* for reading an ack */
 
-        struct timespec last_keepalive_ack;
+        struct timespec last_keepalive_ack; /* keepalive2 ack stamp */
 
         struct delayed_work work;           /* send|recv work */
         unsigned long       delay;          /* current delay interval */
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 4d8fcf2187dc..8492721b39be 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -473,31 +473,8 @@ struct cgroup_subsys {
         unsigned int depends_on;
 };
 
-extern struct percpu_rw_semaphore cgroup_threadgroup_rwsem;
-
-/**
- * cgroup_threadgroup_change_begin - threadgroup exclusion for cgroups
- * @tsk: target task
- *
- * Called from threadgroup_change_begin() and allows cgroup operations to
- * synchronize against threadgroup changes using a percpu_rw_semaphore.
- */
-static inline void cgroup_threadgroup_change_begin(struct task_struct *tsk)
-{
-        percpu_down_read(&cgroup_threadgroup_rwsem);
-}
-
-/**
- * cgroup_threadgroup_change_end - threadgroup exclusion for cgroups
- * @tsk: target task
- *
- * Called from threadgroup_change_end().  Counterpart of
- * cgroup_threadcgroup_change_begin().
- */
-static inline void cgroup_threadgroup_change_end(struct task_struct *tsk)
-{
-        percpu_up_read(&cgroup_threadgroup_rwsem);
-}
+void cgroup_threadgroup_change_begin(struct task_struct *tsk);
+void cgroup_threadgroup_change_end(struct task_struct *tsk);
 
 #else   /* CONFIG_CGROUPS */
 
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 31ce435981fe..bdcf358dfce2 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -18,15 +18,6 @@
 struct clock_event_device;
 struct module;
 
-/* Clock event mode commands for legacy ->set_mode(): OBSOLETE */
-enum clock_event_mode {
-        CLOCK_EVT_MODE_UNUSED,
-        CLOCK_EVT_MODE_SHUTDOWN,
-        CLOCK_EVT_MODE_PERIODIC,
-        CLOCK_EVT_MODE_ONESHOT,
-        CLOCK_EVT_MODE_RESUME,
-};
-
 /*
  * Possible states of a clock event device.
  *
@@ -86,16 +77,14 @@ enum clock_event_state {
  * @min_delta_ns:       minimum delta value in ns
  * @mult:               nanosecond to cycles multiplier
  * @shift:              nanoseconds to cycles divisor (power of two)
- * @mode:               operating mode, relevant only to ->set_mode(), OBSOLETE
  * @state_use_accessors:current state of the device, assigned by the core code
  * @features:           features
  * @retries:            number of forced programming retries
- * @set_mode:           legacy set mode function, only for modes <= CLOCK_EVT_MODE_RESUME.
- * @set_state_periodic: switch state to periodic, if !set_mode
- * @set_state_oneshot:  switch state to oneshot, if !set_mode
- * @set_state_oneshot_stopped: switch state to oneshot_stopped, if !set_mode
- * @set_state_shutdown: switch state to shutdown, if !set_mode
- * @tick_resume:        resume clkevt device, if !set_mode
+ * @set_state_periodic: switch state to periodic
+ * @set_state_oneshot:  switch state to oneshot
+ * @set_state_oneshot_stopped: switch state to oneshot_stopped
+ * @set_state_shutdown: switch state to shutdown
+ * @tick_resume:        resume clkevt device
  * @broadcast:          function to broadcast events
  * @min_delta_ticks:    minimum delta value in ticks stored for reconfiguration
  * @max_delta_ticks:    maximum delta value in ticks stored for reconfiguration
@@ -116,18 +105,10 @@ struct clock_event_device {
         u64                     min_delta_ns;
         u32                     mult;
         u32                     shift;
-        enum clock_event_mode   mode;
         enum clock_event_state  state_use_accessors;
         unsigned int            features;
         unsigned long           retries;
 
-        /*
-         * State transition callback(s): Only one of the two groups should be
-         * defined:
-         * - set_mode(), only for modes <= CLOCK_EVT_MODE_RESUME.
-         * - set_state_{shutdown|periodic|oneshot|oneshot_stopped}(), tick_resume().
-         */
-        void                    (*set_mode)(enum clock_event_mode mode, struct clock_event_device *);
         int                     (*set_state_periodic)(struct clock_event_device *);
         int                     (*set_state_oneshot)(struct clock_event_device *);
         int                     (*set_state_oneshot_stopped)(struct clock_event_device *);
diff --git a/include/linux/cma.h b/include/linux/cma.h
index f7ef093ec49a..29f9e774ab76 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -26,6 +26,6 @@ extern int __init cma_declare_contiguous(phys_addr_t base,
 extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
                                         unsigned int order_per_bit,
                                         struct cma **res_cma);
-extern struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align);
+extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align);
 extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count);
 #endif
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index dfaa7b3e9ae9..8efb40e61d6e 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -237,12 +237,25 @@
 #define KASAN_ABI_VERSION 3
 #endif
 
+#if GCC_VERSION >= 40902
+/*
+ * Tell the compiler that address safety instrumentation (KASAN)
+ * should not be applied to that function.
+ * Conflicts with inlining: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
+ */
+#define __no_sanitize_address __attribute__((no_sanitize_address))
+#endif
+
 #endif  /* gcc version >= 40000 specific checks */
 
 #if !defined(__noclone)
 #define __noclone       /* not needed */
 #endif
 
+#if !defined(__no_sanitize_address)
+#define __no_sanitize_address
+#endif
+
 /*
  * A trick to suppress uninitialized variable warning without generating any
  * code
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index c836eb2dc44d..3d7810341b57 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -198,19 +198,45 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 
 #include <uapi/linux/types.h>
 
-static __always_inline void __read_once_size(const volatile void *p, void *res, int size)
+#define __READ_ONCE_SIZE                                                \
+({                                                                      \
+        switch (size) {                                                 \
+        case 1: *(__u8 *)res = *(volatile __u8 *)p; break;              \
+        case 2: *(__u16 *)res = *(volatile __u16 *)p; break;            \
+        case 4: *(__u32 *)res = *(volatile __u32 *)p; break;            \
+        case 8: *(__u64 *)res = *(volatile __u64 *)p; break;            \
+        default:                                                        \
+                barrier();                                              \
+                __builtin_memcpy((void *)res, (const void *)p, size);   \
+                barrier();                                              \
+        }                                                               \
+})
+
+static __always_inline
+void __read_once_size(const volatile void *p, void *res, int size)
 {
-        switch (size) {
-        case 1: *(__u8 *)res = *(volatile __u8 *)p; break;
-        case 2: *(__u16 *)res = *(volatile __u16 *)p; break;
-        case 4: *(__u32 *)res = *(volatile __u32 *)p; break;
-        case 8: *(__u64 *)res = *(volatile __u64 *)p; break;
-        default:
-                barrier();
-                __builtin_memcpy((void *)res, (const void *)p, size);
-                barrier();
-        }
+        __READ_ONCE_SIZE;
+}
+
+#ifdef CONFIG_KASAN
+/*
+ * This function is not 'inline' because __no_sanitize_address confilcts
+ * with inlining. Attempt to inline it may cause a build failure.
+ *      https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67368
+ * '__maybe_unused' allows us to avoid defined-but-not-used warnings.
+ */
+static __no_sanitize_address __maybe_unused
+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
+{
+        __READ_ONCE_SIZE;
+}
+#else
+static __always_inline
+void __read_once_size_nocheck(const volatile void *p, void *res, int size)
+{
+        __READ_ONCE_SIZE;
 }
+#endif
 
 static __always_inline void __write_once_size(volatile void *p, void *res, int size)
 {
@@ -248,8 +274,22 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  * required ordering.
  */
 
-#define READ_ONCE(x) \
-        ({ union { typeof(x) __val; char __c[1]; } __u; __read_once_size(&(x), __u.__c, sizeof(x)); __u.__val; })
+#define __READ_ONCE(x, check)                                           \
+({                                                                      \
+        union { typeof(x) __val; char __c[1]; } __u;                    \
+        if (check)                                                      \
+                __read_once_size(&(x), __u.__c, sizeof(x));             \
+        else                                                            \
+                __read_once_size_nocheck(&(x), __u.__c, sizeof(x));     \
+        __u.__val;                                                      \
+})
+#define READ_ONCE(x) __READ_ONCE(x, 1)
+
+/*
+ * Use READ_ONCE_NOCHECK() instead of READ_ONCE() if you need
+ * to hide memory access from KASAN.
+ */
+#define READ_ONCE_NOCHECK(x) __READ_ONCE(x, 0)
 
 #define WRITE_ONCE(x, val) \
 ({                                                      \
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 430efcbea48e..dca22de98d94 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -127,9 +127,14 @@ struct cpufreq_policy {
 #define CPUFREQ_SHARED_TYPE_ANY  (3) /* Freq can be set from any dependent CPU*/
 
 #ifdef CONFIG_CPU_FREQ
+struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu);
 struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
 void cpufreq_cpu_put(struct cpufreq_policy *policy);
 #else
+static inline struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
+{
+        return NULL;
+}
 static inline struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
 {
         return NULL;
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index ce447f0f1bad..68030e22af35 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -65,7 +65,10 @@ struct devfreq_dev_status {
  *                      The "flags" parameter's possible values are
  *                      explained above with "DEVFREQ_FLAG_*" macros.
  * @get_dev_status:     The device should provide the current performance
- *                      status to devfreq, which is used by governors.
+ *                      status to devfreq. Governors are recommended not to
+ *                      use this directly. Instead, governors are recommended
+ *                      to use devfreq_update_stats() along with
+ *                      devfreq.last_status.
  * @get_cur_freq:       The device should provide the current frequency
  *                      at which it is operating.
  * @exit:               An optional callback that is called when devfreq
@@ -161,6 +164,7 @@ struct devfreq {
         struct delayed_work work;
 
         unsigned long previous_freq;
+        struct devfreq_dev_status last_status;
 
         void *data; /* private data for governors */
 
@@ -204,6 +208,19 @@ extern int devm_devfreq_register_opp_notifier(struct device *dev,
 extern void devm_devfreq_unregister_opp_notifier(struct device *dev,
                                                 struct devfreq *devfreq);
 
+/**
+ * devfreq_update_stats() - update the last_status pointer in struct devfreq
+ * @df:         the devfreq instance whose status needs updating
+ *
+ *  Governors are recommended to use this function along with last_status,
+ * which allows other entities to reuse the last_status without affecting
+ * the values fetched later by governors.
+ */
+static inline int devfreq_update_stats(struct devfreq *df)
+{
+        return df->profile->get_dev_status(df->dev.parent, &df->last_status);
+}
+
 #if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
 /**
  * struct devfreq_simple_ondemand_data - void *data fed to struct devfreq
@@ -289,6 +306,11 @@ static inline void devm_devfreq_unregister_opp_notifier(struct device *dev,
                                                         struct devfreq *devfreq)
 {
 }
+
+static inline int devfreq_update_stats(struct devfreq *df)
+{
+        return -EINVAL;
+}
 #endif /* CONFIG_PM_DEVFREQ */
 
 #endif /* __LINUX_DEVFREQ_H__ */
diff --git a/include/linux/dma-contiguous.h b/include/linux/dma-contiguous.h
index 569bbd039896..fec734df1524 100644
--- a/include/linux/dma-contiguous.h
+++ b/include/linux/dma-contiguous.h
@@ -111,7 +111,7 @@ static inline int dma_declare_contiguous(struct device *dev, phys_addr_t size,
         return ret;
 }
 
-struct page *dma_alloc_from_contiguous(struct device *dev, int count,
+struct page *dma_alloc_from_contiguous(struct device *dev, size_t count,
                                        unsigned int order);
 bool dma_release_from_contiguous(struct device *dev, struct page *pages,
                                  int count);
@@ -144,7 +144,7 @@ int dma_declare_contiguous(struct device *dev, phys_addr_t size,
 }
 
 static inline
-struct page *dma_alloc_from_contiguous(struct device *dev, int count,
+struct page *dma_alloc_from_contiguous(struct device *dev, size_t count,
                                        unsigned int order)
 {
         return NULL;
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index d0b380ee7d67..e38681f4912d 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -25,6 +25,13 @@
 extern struct files_struct init_files;
 extern struct fs_struct init_fs;
 
+#ifdef CONFIG_CGROUPS
+#define INIT_GROUP_RWSEM(sig)                                           \
+        .group_rwsem = __RWSEM_INITIALIZER(sig.group_rwsem),
+#else
+#define INIT_GROUP_RWSEM(sig)
+#endif
+
 #ifdef CONFIG_CPUSETS
 #define INIT_CPUSET_SEQ(tsk)                                                    \
         .mems_allowed_seq = SEQCNT_ZERO(tsk.mems_allowed_seq),
@@ -57,6 +64,7 @@ extern struct fs_struct init_fs;
         INIT_PREV_CPUTIME(sig)                                          \
         .cred_guard_mutex =                                             \
                  __MUTEX_INITIALIZER(sig.cred_guard_mutex),             \
+        INIT_GROUP_RWSEM(sig)                                           \
 }
 
 extern struct nsproxy init_nsproxy;
diff --git a/include/linux/iova.h b/include/linux/iova.h
index 3920a19d8194..92f7177db2ce 100644
--- a/include/linux/iova.h
+++ b/include/linux/iova.h
@@ -68,8 +68,8 @@ static inline unsigned long iova_pfn(struct iova_domain *iovad, dma_addr_t iova)
         return iova >> iova_shift(iovad);
 }
 
-int iommu_iova_cache_init(void);
-void iommu_iova_cache_destroy(void);
+int iova_cache_get(void);
+void iova_cache_put(void);
 
 struct iova *alloc_iova_mem(void);
 void free_iova_mem(struct iova *iova);
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 6f8b34066442..11bf09288ddb 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -110,8 +110,8 @@ enum {
 /*
  * Return value for chip->irq_set_affinity()
  *
- * IRQ_SET_MASK_OK      - OK, core updates irq_data.affinity
- * IRQ_SET_MASK_NOCPY   - OK, chip did update irq_data.affinity
+ * IRQ_SET_MASK_OK      - OK, core updates irq_common_data.affinity
+ * IRQ_SET_MASK_NOCPY   - OK, chip did update irq_common_data.affinity
  * IRQ_SET_MASK_OK_DONE - Same as IRQ_SET_MASK_OK for core. Special code to
  *                        support stacked irqchips, which indicates skipping
  *                        all descendent irqchips.
@@ -129,9 +129,19 @@ struct irq_domain;
  * struct irq_common_data - per irq data shared by all irqchips
  * @state_use_accessors: status information for irq chip functions.
  *                      Use accessor functions to deal with it
+ * @node:               node index useful for balancing
+ * @handler_data:       per-IRQ data for the irq_chip methods
+ * @affinity:           IRQ affinity on SMP
+ * @msi_desc:           MSI descriptor
  */
 struct irq_common_data {
         unsigned int            state_use_accessors;
+#ifdef CONFIG_NUMA
+        unsigned int            node;
+#endif
+        void                    *handler_data;
+        struct msi_desc         *msi_desc;
+        cpumask_var_t           affinity;
 };
 
 /**
@@ -139,38 +149,26 @@ struct irq_common_data {
  * @mask:               precomputed bitmask for accessing the chip registers
  * @irq:                interrupt number
  * @hwirq:              hardware interrupt number, local to the interrupt domain
- * @node:               node index useful for balancing
  * @common:             point to data shared by all irqchips
  * @chip:               low level interrupt hardware access
  * @domain:             Interrupt translation domain; responsible for mapping
  *                      between hwirq number and linux irq number.
  * @parent_data:        pointer to parent struct irq_data to support hierarchy
  *                      irq_domain
- * @handler_data:       per-IRQ data for the irq_chip methods
  * @chip_data:          platform-specific per-chip private data for the chip
  *                      methods, to allow shared chip implementations
- * @msi_desc:           MSI descriptor
- * @affinity:           IRQ affinity on SMP
- *
- * The fields here need to overlay the ones in irq_desc until we
- * cleaned up the direct references and switched everything over to
- * irq_data.
  */
 struct irq_data {
         u32                     mask;
         unsigned int            irq;
         unsigned long           hwirq;
-        unsigned int            node;
         struct irq_common_data  *common;
         struct irq_chip         *chip;
         struct irq_domain       *domain;
 #ifdef  CONFIG_IRQ_DOMAIN_HIERARCHY
         struct irq_data         *parent_data;
 #endif
-        void                    *handler_data;
         void                    *chip_data;
-        struct msi_desc         *msi_desc;
-        cpumask_var_t           affinity;
 };
 
 /*
@@ -190,6 +188,7 @@ struct irq_data {
  * IRQD_IRQ_MASKED              - Masked state of the interrupt
  * IRQD_IRQ_INPROGRESS          - In progress state of the interrupt
  * IRQD_WAKEUP_ARMED            - Wakeup mode armed
+ * IRQD_FORWARDED_TO_VCPU       - The interrupt is forwarded to a VCPU
  */
 enum {
         IRQD_TRIGGER_MASK               = 0xf,
@@ -204,6 +203,7 @@ enum {
         IRQD_IRQ_MASKED                 = (1 << 17),
         IRQD_IRQ_INPROGRESS             = (1 << 18),
         IRQD_WAKEUP_ARMED               = (1 << 19),
+        IRQD_FORWARDED_TO_VCPU          = (1 << 20),
 };
 
 #define __irqd_to_state(d)              ((d)->common->state_use_accessors)
@@ -282,6 +282,20 @@ static inline bool irqd_is_wakeup_armed(struct irq_data *d)
         return __irqd_to_state(d) & IRQD_WAKEUP_ARMED;
 }
 
+static inline bool irqd_is_forwarded_to_vcpu(struct irq_data *d)
+{
+        return __irqd_to_state(d) & IRQD_FORWARDED_TO_VCPU;
+}
+
+static inline void irqd_set_forwarded_to_vcpu(struct irq_data *d)
+{
+        __irqd_to_state(d) |= IRQD_FORWARDED_TO_VCPU;
+}
+
+static inline void irqd_clr_forwarded_to_vcpu(struct irq_data *d)
+{
+        __irqd_to_state(d) &= ~IRQD_FORWARDED_TO_VCPU;
+}
 
 /*
  * Functions for chained handlers which can be enabled/disabled by the
@@ -461,14 +475,14 @@ static inline int irq_set_parent(int irq, int parent_irq)
  * Built-in IRQ handlers for various IRQ types,
  * callable via desc->handle_irq()
  */
-extern void handle_level_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);
-extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_level_irq(struct irq_desc *desc);
+extern void handle_fasteoi_irq(struct irq_desc *desc);
+extern void handle_edge_irq(struct irq_desc *desc);
+extern void handle_edge_eoi_irq(struct irq_desc *desc);
+extern void handle_simple_irq(struct irq_desc *desc);
+extern void handle_percpu_irq(struct irq_desc *desc);
+extern void handle_percpu_devid_irq(struct irq_desc *desc);
+extern void handle_bad_irq(struct irq_desc *desc);
 extern void handle_nested_irq(unsigned int irq);
 
 extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);
@@ -627,23 +641,23 @@ static inline void *irq_data_get_irq_chip_data(struct irq_data *d)
 static inline void *irq_get_handler_data(unsigned int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
-        return d ? d->handler_data : NULL;
+        return d ? d->common->handler_data : NULL;
 }
 
 static inline void *irq_data_get_irq_handler_data(struct irq_data *d)
 {
-        return d->handler_data;
+        return d->common->handler_data;
 }
 
 static inline struct msi_desc *irq_get_msi_desc(unsigned int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
-        return d ? d->msi_desc : NULL;
+        return d ? d->common->msi_desc : NULL;
 }
 
 static inline struct msi_desc *irq_data_get_msi_desc(struct irq_data *d)
 {
-        return d->msi_desc;
+        return d->common->msi_desc;
 }
 
 static inline u32 irq_get_trigger_type(unsigned int irq)
@@ -652,21 +666,30 @@ static inline u32 irq_get_trigger_type(unsigned int irq)
         return d ? irqd_get_trigger_type(d) : 0;
 }
 
-static inline int irq_data_get_node(struct irq_data *d)
+static inline int irq_common_data_get_node(struct irq_common_data *d)
 {
+#ifdef CONFIG_NUMA
         return d->node;
+#else
+        return 0;
+#endif
+}
+
+static inline int irq_data_get_node(struct irq_data *d)
+{
+        return irq_common_data_get_node(d->common);
 }
 
 static inline struct cpumask *irq_get_affinity_mask(int irq)
 {
         struct irq_data *d = irq_get_irq_data(irq);
 
-        return d ? d->affinity : NULL;
+        return d ? d->common->affinity : NULL;
 }
 
 static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
 {
-        return d->affinity;
+        return d->common->affinity;
 }
 
 unsigned int arch_dynirq_lower_bound(unsigned int from);
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 5acfa26602e1..a587a33363c7 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -98,11 +98,7 @@ extern struct irq_desc irq_desc[NR_IRQS];
 
 static inline struct irq_desc *irq_data_to_desc(struct irq_data *data)
 {
-#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
-        return irq_to_desc(data->irq);
-#else
-        return container_of(data, struct irq_desc, irq_data);
-#endif
+        return container_of(data->common, struct irq_desc, irq_common_data);
 }
 
 static inline unsigned int irq_desc_get_irq(struct irq_desc *desc)
@@ -127,23 +123,21 @@ static inline void *irq_desc_get_chip_data(struct irq_desc *desc)
 
 static inline void *irq_desc_get_handler_data(struct irq_desc *desc)
 {
-        return desc->irq_data.handler_data;
+        return desc->irq_common_data.handler_data;
 }
 
 static inline struct msi_desc *irq_desc_get_msi_desc(struct irq_desc *desc)
 {
-        return desc->irq_data.msi_desc;
+        return desc->irq_common_data.msi_desc;
 }
 
 /*
  * Architectures call this to let the generic IRQ layer
- * handle an interrupt. If the descriptor is attached to an
- * irqchip-style controller then we call the ->handle_irq() handler,
- * and it calls __do_IRQ() if it's attached to an irqtype-style controller.
+ * handle an interrupt.
  */
-static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)
+static inline void generic_handle_irq_desc(struct irq_desc *desc)
 {
-        desc->handle_irq(irq, desc);
+        desc->handle_irq(desc);
 }
 
 int generic_handle_irq(unsigned int irq);
@@ -176,29 +170,6 @@ static inline int irq_has_action(unsigned int irq)
         return irq_desc_has_action(irq_to_desc(irq));
 }
 
-/* caller has locked the irq_desc and both params are valid */
-static inline void __irq_set_handler_locked(unsigned int irq,
-                                            irq_flow_handler_t handler)
-{
-        struct irq_desc *desc;
-
-        desc = irq_to_desc(irq);
-        desc->handle_irq = handler;
-}
-
-/* caller has locked the irq_desc and both params are valid */
-static inline void
-__irq_set_chip_handler_name_locked(unsigned int irq, struct irq_chip *chip,
-                                   irq_flow_handler_t handler, const char *name)
-{
-        struct irq_desc *desc;
-
-        desc = irq_to_desc(irq);
-        irq_desc_get_irq_data(desc)->chip = chip;
-        desc->handle_irq = handler;
-        desc->name = name;
-}
-
 /**
  * irq_set_handler_locked - Set irq handler from a locked region
  * @data:       Pointer to the irq_data structure which identifies the irq
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d3ca79236fb0..f644fdb06dd6 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -161,6 +161,11 @@ enum {
         IRQ_DOMAIN_FLAG_NONCORE         = (1 << 16),
 };
 
+static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d)
+{
+        return d->of_node;
+}
+
 #ifdef CONFIG_IRQ_DOMAIN
 struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
                                     irq_hw_number_t hwirq_max, int direct_max,
diff --git a/include/linux/irqhandler.h b/include/linux/irqhandler.h
index 62d543004197..661bed0ed1f3 100644
--- a/include/linux/irqhandler.h
+++ b/include/linux/irqhandler.h
@@ -8,7 +8,7 @@
 
 struct irq_desc;
 struct irq_data;
-typedef void (*irq_flow_handler_t)(unsigned int irq, struct irq_desc *desc);
+typedef void (*irq_flow_handler_t)(struct irq_desc *desc);
 typedef void (*irq_preflow_handler_t)(struct irq_data *data);
 
 #endif
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index 7f653e8f6690..f1094238ab2a 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -21,8 +21,8 @@
  *
  * DEFINE_STATIC_KEY_TRUE(key);
  * DEFINE_STATIC_KEY_FALSE(key);
- * static_key_likely()
- * statick_key_unlikely()
+ * static_branch_likely()
+ * static_branch_unlikely()
  *
  * Jump labels provide an interface to generate dynamic branches using
  * self-modifying code. Assuming toolchain and architecture support, if we
@@ -45,12 +45,10 @@
  * statement, setting the key to true requires us to patch in a jump
  * to the out-of-line of true branch.
  *
- * In addtion to static_branch_{enable,disable}, we can also reference count
+ * In addition to static_branch_{enable,disable}, we can also reference count
  * the key or branch direction via static_branch_{inc,dec}. Thus,
  * static_branch_inc() can be thought of as a 'make more true' and
- * static_branch_dec() as a 'make more false'. The inc()/dec()
- * interface is meant to be used exclusively from the inc()/dec() for a given
- * key.
+ * static_branch_dec() as a 'make more false'.
  *
  * Since this relies on modifying code, the branch modifying functions
  * must be considered absolute slow paths (machine wide synchronization etc.).
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index ad800e62cb7a..3e3318ddfc0e 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -242,7 +242,6 @@ struct mem_cgroup {
          * percpu counter.
          */
         struct mem_cgroup_stat_cpu __percpu *stat;
-        spinlock_t pcp_counter_lock;
 
 #if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_INET)
         struct cg_proto tcp_mem;
@@ -677,8 +676,9 @@ enum {
 
 struct list_head *mem_cgroup_cgwb_list(struct mem_cgroup *memcg);
 struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb);
-void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pavail,
-                         unsigned long *pdirty, unsigned long *pwriteback);
+void mem_cgroup_wb_stats(struct bdi_writeback *wb, unsigned long *pfilepages,
+                         unsigned long *pheadroom, unsigned long *pdirty,
+                         unsigned long *pwriteback);
 
 #else   /* CONFIG_CGROUP_WRITEBACK */
 
@@ -688,7 +688,8 @@ static inline struct wb_domain *mem_cgroup_wb_domain(struct bdi_writeback *wb)
 }
 
 static inline void mem_cgroup_wb_stats(struct bdi_writeback *wb,
-                                       unsigned long *pavail,
+                                       unsigned long *pfilepages,
+                                       unsigned long *pheadroom,
                                        unsigned long *pdirty,
                                        unsigned long *pwriteback)
 {
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 8eb3b19af2a4..250b1ff8b48d 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -402,17 +402,6 @@ struct mlx5_cmd_teardown_hca_mbox_out {
         u8                      rsvd[8];
 };
 
-struct mlx5_cmd_query_special_contexts_mbox_in {
-        struct mlx5_inbox_hdr   hdr;
-        u8                      rsvd[8];
-};
-
-struct mlx5_cmd_query_special_contexts_mbox_out {
-        struct mlx5_outbox_hdr  hdr;
-        __be32                  dump_fill_mkey;
-        __be32                  resd_lkey;
-};
-
 struct mlx5_cmd_layout {
         u8              type;
         u8              rsvd0[3];
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 27b53f9a24ad..8b6d6f2154a4 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -845,7 +845,6 @@ void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
 int mlx5_register_interface(struct mlx5_interface *intf);
 void mlx5_unregister_interface(struct mlx5_interface *intf);
 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
-int mlx5_core_query_special_context(struct mlx5_core_dev *dev, u32 *rsvd_lkey);
 
 struct mlx5_profile {
         u64     mask;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 91c08f6f0dc9..80001de019ba 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -905,6 +905,27 @@ static inline void set_page_links(struct page *page, enum zone_type zone,
 #endif
 }
 
+#ifdef CONFIG_MEMCG
+static inline struct mem_cgroup *page_memcg(struct page *page)
+{
+        return page->mem_cgroup;
+}
+
+static inline void set_page_memcg(struct page *page, struct mem_cgroup *memcg)
+{
+        page->mem_cgroup = memcg;
+}
+#else
+static inline struct mem_cgroup *page_memcg(struct page *page)
+{
+        return NULL;
+}
+
+static inline void set_page_memcg(struct page *page, struct mem_cgroup *memcg)
+{
+}
+#endif
+
 /*
  * Some inline functions in vmstat.h depend on page_zone()
  */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 88a00694eda5..210d11a75e4f 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -507,6 +507,7 @@ static inline void napi_enable(struct napi_struct *n)
         BUG_ON(!test_bit(NAPI_STATE_SCHED, &n->state));
         smp_mb__before_atomic();
         clear_bit(NAPI_STATE_SCHED, &n->state);
+        clear_bit(NAPI_STATE_NPSVC, &n->state);
 }
 
 #ifdef CONFIG_SMP
@@ -1053,6 +1054,10 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  *      This function is used to pass protocol port error state information
  *      to the switch driver. The switch driver can react to the proto_down
  *      by doing a phys down on the associated switch port.
+ * int (*ndo_fill_metadata_dst)(struct net_device *dev, struct sk_buff *skb);
+ *      This function is used to get egress tunnel information for given skb.
+ *      This is useful for retrieving outer tunnel header parameters while
+ *      sampling packet.
  *
  */
 struct net_device_ops {
@@ -1226,6 +1231,8 @@ struct net_device_ops {
         int                     (*ndo_get_iflink)(const struct net_device *dev);
         int                     (*ndo_change_proto_down)(struct net_device *dev,
                                                          bool proto_down);
+        int                     (*ndo_fill_metadata_dst)(struct net_device *dev,
+                                                       struct sk_buff *skb);
 };
 
 /**
@@ -2202,6 +2209,7 @@ void dev_add_offload(struct packet_offload *po);
 void dev_remove_offload(struct packet_offload *po);
 
 int dev_get_iflink(const struct net_device *dev);
+int dev_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb);
 struct net_device *__dev_get_by_flags(struct net *net, unsigned short flags,
                                       unsigned short mask);
 struct net_device *dev_get_by_name(struct net *net, const char *name);
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index e5a70132a240..88fa8af2b937 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -17,7 +17,7 @@
 
 #include <linux/platform_device.h>
 
-#define INT_DMA_LCD                     25
+#define INT_DMA_LCD                     (NR_IRQS_LEGACY + 25)
 
 #define OMAP1_DMA_TOUT_IRQ              (1 << 0)
 #define OMAP_DMA_DROP_IRQ               (1 << 1)
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 962387a192f1..4a4e3a092337 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -19,6 +19,7 @@
 #include <linux/spinlock.h>
 #include <linux/ethtool.h>
 #include <linux/mii.h>
+#include <linux/module.h>
 #include <linux/timer.h>
 #include <linux/workqueue.h>
 #include <linux/mod_devicetable.h>
@@ -153,6 +154,7 @@ struct sk_buff;
  * PHYs should register using this structure
  */
 struct mii_bus {
+        struct module *owner;
         const char *name;
         char id[MII_BUS_ID_SIZE];
         void *priv;
@@ -198,7 +200,8 @@ static inline struct mii_bus *mdiobus_alloc(void)
         return mdiobus_alloc_size(0);
 }
 
-int mdiobus_register(struct mii_bus *bus);
+int __mdiobus_register(struct mii_bus *bus, struct module *owner);
+#define mdiobus_register(bus) __mdiobus_register(bus, THIS_MODULE)
 void mdiobus_unregister(struct mii_bus *bus);
 void mdiobus_free(struct mii_bus *bus);
 struct mii_bus *devm_mdiobus_alloc_size(struct device *dev, int sizeof_priv);
@@ -742,6 +745,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
                                      struct phy_c45_device_ids *c45_ids);
 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
 int phy_device_register(struct phy_device *phy);
+void phy_device_remove(struct phy_device *phydev);
 int phy_init_hw(struct phy_device *phydev);
 int phy_suspend(struct phy_device *phydev);
 int phy_resume(struct phy_device *phydev);
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index ff476515f716..581abf848566 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -230,12 +230,11 @@ void __wait_rcu_gp(bool checktiny, int n, call_rcu_func_t *crcu_array,
                    struct rcu_synchronize *rs_array);
 
 #define _wait_rcu_gp(checktiny, ...) \
-do { \
-        call_rcu_func_t __crcu_array[] = { __VA_ARGS__ }; \
-        const int __n = ARRAY_SIZE(__crcu_array); \
-        struct rcu_synchronize __rs_array[__n]; \
-        \
-        __wait_rcu_gp(checktiny, __n, __crcu_array, __rs_array); \
+do {                                                                    \
+        call_rcu_func_t __crcu_array[] = { __VA_ARGS__ };               \
+        struct rcu_synchronize __rs_array[ARRAY_SIZE(__crcu_array)];    \
+        __wait_rcu_gp(checktiny, ARRAY_SIZE(__crcu_array),              \
+                        __crcu_array, __rs_array);                      \
 } while (0)
 
 #define wait_rcu_gp(...) _wait_rcu_gp(false, __VA_ARGS__)
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 45932228cbf5..9c2903e58adb 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -245,6 +245,7 @@ enum regulator_type {
  * @linear_min_sel: Minimal selector for starting linear mapping
  * @fixed_uV: Fixed voltage of rails.
  * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
+ * @min_dropout_uV: The minimum dropout voltage this regulator can handle
  * @linear_ranges: A constant table of possible voltage ranges.
  * @n_linear_ranges: Number of entries in the @linear_ranges table.
  * @volt_table: Voltage mapping table (if table based mapping)
@@ -292,6 +293,7 @@ struct regulator_desc {
         unsigned int linear_min_sel;
         int fixed_uV;
         unsigned int ramp_delay;
+        int min_dropout_uV;
 
         const struct regulator_linear_range *linear_ranges;
         int n_linear_ranges;
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a4ab9daa387c..b7b9501b41af 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -762,6 +762,18 @@ struct signal_struct {
         unsigned audit_tty_log_passwd;
         struct tty_audit_buf *tty_audit_buf;
 #endif
+#ifdef CONFIG_CGROUPS
+        /*
+         * group_rwsem prevents new tasks from entering the threadgroup and
+         * member tasks from exiting,a more specifically, setting of
+         * PF_EXITING.  fork and exit paths are protected with this rwsem
+         * using threadgroup_change_begin/end().  Users which require
+         * threadgroup to remain stable should use threadgroup_[un]lock()
+         * which also takes care of exec path.  Currently, cgroup is the
+         * only user.
+         */
+        struct rw_semaphore group_rwsem;
+#endif
 
         oom_flags_t oom_flags;
         short oom_score_adj;            /* OOM kill score adjustment */
diff --git a/include/linux/security.h b/include/linux/security.h
index 79d85ddf8093..2f4c1f7aa7db 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -946,7 +946,7 @@ static inline int security_task_prctl(int option, unsigned long arg2,
                                       unsigned long arg4,
                                       unsigned long arg5)
 {
-        return cap_task_prctl(option, arg2, arg3, arg3, arg5);
+        return cap_task_prctl(option, arg2, arg3, arg4, arg5);
 }
 
 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2738d355cdf9..4398411236f1 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -179,6 +179,9 @@ struct nf_bridge_info {
         u8                      bridged_dnat:1;
         __u16                   frag_max_size;
         struct net_device       *physindev;
+
+        /* always valid & non-NULL from FORWARD on, for physdev match */
+        struct net_device       *physoutdev;
         union {
                 /* prerouting: detect dnat in orig/reply direction */
                 __be32          ipv4_daddr;
@@ -189,9 +192,6 @@ struct nf_bridge_info {
                  * skb is out in neigh layer.
                  */
                 char neigh_header[8];
-
-                /* always valid & non-NULL from FORWARD on, for physdev match */
-                struct net_device *physoutdev;
         };
 };
 #endif
@@ -2707,6 +2707,9 @@ static inline void skb_postpull_rcsum(struct sk_buff *skb,
 {
         if (skb->ip_summed == CHECKSUM_COMPLETE)
                 skb->csum = csum_sub(skb->csum, csum_partial(start, len, 0));
+        else if (skb->ip_summed == CHECKSUM_PARTIAL &&
+                 skb_checksum_start_offset(skb) < 0)
+                skb->ip_summed = CHECKSUM_NONE;
 }
 
 unsigned char *skb_pull_rcsum(struct sk_buff *skb, unsigned int len);
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 269e8afd3e2a..6b00f18f5e6b 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -34,7 +34,7 @@ extern struct bus_type spi_bus_type;
 
 /**
  * struct spi_statistics - statistics for spi transfers
- * @clock:         lock protecting this structure
+ * @lock:          lock protecting this structure
  *
  * @messages:      number of spi-messages handled
  * @transfers:     number of spi_transfers handled
diff --git a/include/linux/string.h b/include/linux/string.h
index a8d90db9c4b0..9ef7795e65e4 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -25,6 +25,9 @@ extern char * strncpy(char *,const char *, __kernel_size_t);
 #ifndef __HAVE_ARCH_STRLCPY
 size_t strlcpy(char *, const char *, size_t);
 #endif
+#ifndef __HAVE_ARCH_STRSCPY
+ssize_t __must_check strscpy(char *, const char *, size_t);
+#endif
 #ifndef __HAVE_ARCH_STRCAT
 extern char * strcat(char *, const char *);
 #endif
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index 7591788e9fbf..357e44c1a46b 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -42,6 +42,7 @@ struct sock_xprt {
         /*
          * Connection of transports
          */
+        unsigned long           sock_state;
         struct delayed_work     connect_worker;
         struct sockaddr_storage srcaddr;
         unsigned short          srcport;
@@ -76,6 +77,8 @@ struct sock_xprt {
  */
 #define TCP_RPC_REPLY           (1UL << 6)
 
+#define XPRT_SOCK_CONNECTING    1U
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_SUNRPC_XPRTSOCK_H */
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 17292fee8686..157d366e761b 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -360,7 +360,7 @@ static inline struct thermal_zone_device *
 thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
                                 const struct thermal_zone_of_device_ops *ops)
 {
-        return NULL;
+        return ERR_PTR(-ENODEV);
 }
 
 static inline
@@ -380,6 +380,8 @@ static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev)
 
 int power_actor_get_max_power(struct thermal_cooling_device *,
                               struct thermal_zone_device *tz, u32 *max_power);
+int power_actor_get_min_power(struct thermal_cooling_device *,
+                              struct thermal_zone_device *tz, u32 *min_power);
 int power_actor_set_power(struct thermal_cooling_device *,
                           struct thermal_instance *, u32);
 struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
@@ -415,6 +417,10 @@ static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev)
 static inline int power_actor_get_max_power(struct thermal_cooling_device *cdev,
                               struct thermal_zone_device *tz, u32 *max_power)
 { return 0; }
+static inline int power_actor_get_min_power(struct thermal_cooling_device *cdev,
+                                            struct thermal_zone_device *tz,
+                                            u32 *min_power)
+{ return -ENODEV; }
 static inline int power_actor_set_power(struct thermal_cooling_device *cdev,
                           struct thermal_instance *tz, u32 power)
 { return 0; }
diff --git a/include/linux/tick.h b/include/linux/tick.h
index 48d901f83f92..e312219ff823 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -147,11 +147,20 @@ static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask)
                 cpumask_or(mask, mask, tick_nohz_full_mask);
 }
 
+static inline int housekeeping_any_cpu(void)
+{
+        return cpumask_any_and(housekeeping_mask, cpu_online_mask);
+}
+
 extern void tick_nohz_full_kick(void);
 extern void tick_nohz_full_kick_cpu(int cpu);
 extern void tick_nohz_full_kick_all(void);
 extern void __tick_nohz_task_switch(void);
 #else
+static inline int housekeeping_any_cpu(void)
+{
+        return smp_processor_id();
+}
 static inline bool tick_nohz_full_enabled(void) { return false; }
 static inline bool tick_nohz_full_cpu(int cpu) { return false; }
 static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask) { }
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 3dd5a781da99..bfb74723f151 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -157,7 +157,7 @@ struct renesas_usbhs_driver_param {
          */
         int pio_dma_border; /* default is 64byte */
 
-        u32 type;
+        uintptr_t type;
         u32 enable_gpio;
 
         /*
diff --git a/include/linux/wait.h b/include/linux/wait.h
index d3d077228d4c..1e1bf9f963a9 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -147,8 +147,7 @@ __remove_wait_queue(wait_queue_head_t *head, wait_queue_t *old)
 
 typedef int wait_bit_action_f(struct wait_bit_key *);
 void __wake_up(wait_queue_head_t *q, unsigned int mode, int nr, void *key);
-void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, int nr,
-                          void *key);
+void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, void *key);
 void __wake_up_sync_key(wait_queue_head_t *q, unsigned int mode, int nr, void *key);
 void __wake_up_locked(wait_queue_head_t *q, unsigned int mode, int nr);
 void __wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr);
@@ -180,7 +179,7 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 #define wake_up_poll(x, m)                                              \
         __wake_up(x, TASK_NORMAL, 1, (void *) (m))
 #define wake_up_locked_poll(x, m)                                       \
-        __wake_up_locked_key((x), TASK_NORMAL, 1, (void *) (m))
+        __wake_up_locked_key((x), TASK_NORMAL, (void *) (m))
 #define wake_up_interruptible_poll(x, m)                                \
         __wake_up(x, TASK_INTERRUPTIBLE, 1, (void *) (m))
 #define wake_up_interruptible_sync_poll(x, m)                           \
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 4a167b30a12f..b36d837c701e 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -63,7 +63,11 @@ struct unix_sock {
 #define UNIX_GC_MAYBE_CYCLE     1
         struct socket_wq        peer_wq;
 };
-#define unix_sk(__sk) ((struct unix_sock *)__sk)
+
+static inline struct unix_sock *unix_sk(const struct sock *sk)
+{
+        return (struct unix_sock *)sk;
+}
 
 #define peer_wait peer_wq.wait
 
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index af9d5382f6cb..ce009710120c 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -60,6 +60,38 @@ static inline struct metadata_dst *tun_rx_dst(int md_size)
         return tun_dst;
 }
 
+static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
+{
+        struct metadata_dst *md_dst = skb_metadata_dst(skb);
+        int md_size = md_dst->u.tun_info.options_len;
+        struct metadata_dst *new_md;
+
+        if (!md_dst)
+                return ERR_PTR(-EINVAL);
+
+        new_md = metadata_dst_alloc(md_size, GFP_ATOMIC);
+        if (!new_md)
+                return ERR_PTR(-ENOMEM);
+
+        memcpy(&new_md->u.tun_info, &md_dst->u.tun_info,
+               sizeof(struct ip_tunnel_info) + md_size);
+        skb_dst_drop(skb);
+        dst_hold(&new_md->dst);
+        skb_dst_set(skb, &new_md->dst);
+        return new_md;
+}
+
+static inline struct ip_tunnel_info *skb_tunnel_info_unclone(struct sk_buff *skb)
+{
+        struct metadata_dst *dst;
+
+        dst = tun_dst_unclone(skb);
+        if (IS_ERR(dst))
+                return NULL;
+
+        return &dst->u.tun_info;
+}
+
 static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb,
                                                  __be16 flags,
                                                  __be64 tunnel_id,
diff --git a/include/net/flow.h b/include/net/flow.h
index acd6a096250e..9b85db85f13c 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -35,6 +35,7 @@ struct flowi_common {
 #define FLOWI_FLAG_ANYSRC               0x01
 #define FLOWI_FLAG_KNOWN_NH             0x02
 #define FLOWI_FLAG_VRFSRC               0x04
+#define FLOWI_FLAG_SKIP_NH_OIF          0x08
         __u32   flowic_secid;
         struct flowi_tunnel flowic_tun_key;
 };
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 879d6e5a973b..fc1937698625 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -110,7 +110,19 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
 void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
                            struct inet_hashinfo *hashinfo);
 
-void inet_twsk_schedule(struct inet_timewait_sock *tw, const int timeo);
+void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo,
+                          bool rearm);
+
+static inline void inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo)
+{
+        __inet_twsk_schedule(tw, timeo, false);
+}
+
+static inline void inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo)
+{
+        __inet_twsk_schedule(tw, timeo, true);
+}
+
 void inet_twsk_deschedule_put(struct inet_timewait_sock *tw);
 
 void inet_twsk_purge(struct inet_hashinfo *hashinfo,
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 063d30474cf6..aaf9700fc9e5 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -275,7 +275,8 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
              struct nl_info *info, struct mx6_config *mxc);
 int fib6_del(struct rt6_info *rt, struct nl_info *info);
 
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info);
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
+                     unsigned int flags);
 
 void fib6_run_gc(unsigned long expires, struct net *net, bool force);
 
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index b8529aa1dae7..fa915fa0f703 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -32,6 +32,12 @@ struct __ip6_tnl_parm {
         __be32                  o_key;
 };
 
+struct ip6_tnl_dst {
+        seqlock_t lock;
+        struct dst_entry __rcu *dst;
+        u32 cookie;
+};
+
 /* IPv6 tunnel */
 struct ip6_tnl {
         struct ip6_tnl __rcu *next;     /* next tunnel in list */
@@ -39,8 +45,7 @@ struct ip6_tnl {
         struct net *net;        /* netns for packet i/o */
         struct __ip6_tnl_parm parms;    /* tunnel configuration parameters */
         struct flowi fl;        /* flowi template for xmit */
-        struct dst_entry *dst_cache;    /* cached dst */
-        u32 dst_cookie;
+        struct ip6_tnl_dst __percpu *dst_cache; /* cached dst */
 
         int err_count;
         unsigned long err_time;
@@ -60,9 +65,11 @@ struct ipv6_tlv_tnl_enc_lim {
         __u8 encap_limit;       /* tunnel encapsulation limit   */
 } __packed;
 
-struct dst_entry *ip6_tnl_dst_check(struct ip6_tnl *t);
+struct dst_entry *ip6_tnl_dst_get(struct ip6_tnl *t);
+int ip6_tnl_dst_init(struct ip6_tnl *t);
+void ip6_tnl_dst_destroy(struct ip6_tnl *t);
 void ip6_tnl_dst_reset(struct ip6_tnl *t);
-void ip6_tnl_dst_store(struct ip6_tnl *t, struct dst_entry *dst);
+void ip6_tnl_dst_set(struct ip6_tnl *t, struct dst_entry *dst);
 int ip6_tnl_rcv_ctl(struct ip6_tnl *t, const struct in6_addr *laddr,
                 const struct in6_addr *raddr);
 int ip6_tnl_xmit_ctl(struct ip6_tnl *t, const struct in6_addr *laddr,
@@ -79,7 +86,7 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb,
         struct net_device_stats *stats = &dev->stats;
         int pkt_len, err;
 
-        pkt_len = skb->len;
+        pkt_len = skb->len - skb_inner_network_offset(skb);
         err = ip6_local_out_sk(sk, skb);
 
         if (net_xmit_eval(err) == 0) {
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index a37d0432bebd..727d6e9a9685 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -236,8 +236,11 @@ static inline int fib_lookup(struct net *net, const struct flowi4 *flp,
         rcu_read_lock();
 
         tb = fib_get_table(net, RT_TABLE_MAIN);
-        if (tb && !fib_table_lookup(tb, flp, res, flags | FIB_LOOKUP_NOREF))
-                err = 0;
+        if (tb)
+                err = fib_table_lookup(tb, flp, res, flags | FIB_LOOKUP_NOREF);
+
+        if (err == -EAGAIN)
+                err = -ENETUNREACH;
 
         rcu_read_unlock();
 
@@ -258,7 +261,7 @@ static inline int fib_lookup(struct net *net, struct flowi4 *flp,
                              struct fib_result *res, unsigned int flags)
 {
         struct fib_table *tb;
-        int err;
+        int err = -ENETUNREACH;
 
         flags |= FIB_LOOKUP_NOREF;
         if (net->ipv4.fib_has_custom_rules)
@@ -268,15 +271,20 @@ static inline int fib_lookup(struct net *net, struct flowi4 *flp,
 
         res->tclassid = 0;
 
-        for (err = 0; !err; err = -ENETUNREACH) {
-                tb = rcu_dereference_rtnl(net->ipv4.fib_main);
-                if (tb && !fib_table_lookup(tb, flp, res, flags))
-                        break;
+        tb = rcu_dereference_rtnl(net->ipv4.fib_main);
+        if (tb)
+                err = fib_table_lookup(tb, flp, res, flags);
+
+        if (!err)
+                goto out;
+
+        tb = rcu_dereference_rtnl(net->ipv4.fib_default);
+        if (tb)
+                err = fib_table_lookup(tb, flp, res, flags);
 
-                tb = rcu_dereference_rtnl(net->ipv4.fib_default);
-                if (tb && !fib_table_lookup(tb, flp, res, flags))
-                        break;
-        }
+out:
+        if (err == -EAGAIN)
+                err = -ENETUNREACH;
 
         rcu_read_unlock();
 
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 9a6a3ba888e8..f6dafec9102c 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -276,6 +276,8 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
 int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
                   __be32 src, __be32 dst, u8 proto,
                   u8 tos, u8 ttl, __be16 df, bool xnet);
+struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md,
+                                             gfp_t flags);
 
 struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb, bool gre_csum,
                                          int gso_type_mask);
diff --git a/include/net/route.h b/include/net/route.h
index cc61cb95f059..f46af256880c 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -255,7 +255,7 @@ static inline void ip_route_connect_init(struct flowi4 *fl4, __be32 dst, __be32
                 flow_flags |= FLOWI_FLAG_ANYSRC;
 
         if (netif_index_is_vrf(sock_net(sk), oif))
-                flow_flags |= FLOWI_FLAG_VRFSRC;
+                flow_flags |= FLOWI_FLAG_VRFSRC | FLOWI_FLAG_SKIP_NH_OIF;
 
         flowi4_init_output(fl4, oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE,
                            protocol, flow_flags, dst, src, dport, sport);
diff --git a/include/net/sock.h b/include/net/sock.h
index 7aa78440559a..e23717013a4e 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -828,6 +828,14 @@ static inline __must_check int sk_add_backlog(struct sock *sk, struct sk_buff *s
         if (sk_rcvqueues_full(sk, limit))
                 return -ENOBUFS;
 
+        /*
+         * If the skb was allocated from pfmemalloc reserves, only
+         * allow SOCK_MEMALLOC sockets to use it as this socket is
+         * helping free memory
+         */
+        if (skb_pfmemalloc(skb) && !sock_flag(sk, SOCK_MEMALLOC))
+                return -ENOMEM;
+
         __sk_add_backlog(sk, skb);
         sk->sk_backlog.len += skb->truesize;
         return 0;
diff --git a/include/rdma/opa_port_info.h b/include/rdma/opa_port_info.h
index 391dae1931c0..a0fa975cd1c1 100644
--- a/include/rdma/opa_port_info.h
+++ b/include/rdma/opa_port_info.h
@@ -294,8 +294,8 @@ struct opa_port_states {
 
 struct opa_port_state_info {
         struct opa_port_states port_states;
-        u16 link_width_downgrade_tx_active;
-        u16 link_width_downgrade_rx_active;
+        __be16 link_width_downgrade_tx_active;
+        __be16 link_width_downgrade_rx_active;
 };
 
 struct opa_port_info {
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 884e728b09d9..26ede14597da 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -86,7 +86,7 @@
         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
         .tlv.p  = (tlv_array),\
-        .info = snd_soc_info_volsw, \
+        .info = snd_soc_info_volsw_sx, \
         .get = snd_soc_get_volsw_sx,\
         .put = snd_soc_put_volsw_sx, \
         .private_value = (unsigned long)&(struct soc_mixer_control) \
@@ -156,7 +156,7 @@
         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
         .tlv.p  = (tlv_array), \
-        .info = snd_soc_info_volsw, \
+        .info = snd_soc_info_volsw_sx, \
         .get = snd_soc_get_volsw_sx, \
         .put = snd_soc_put_volsw_sx, \
         .private_value = (unsigned long)&(struct soc_mixer_control) \
@@ -574,6 +574,8 @@ int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_value *ucontrol);
 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_info *uinfo);
+int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
+                          struct snd_ctl_elem_info *uinfo);
 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
         struct snd_ctl_elem_value *ucontrol);
diff --git a/include/sound/wm8904.h b/include/sound/wm8904.h
index 898be3a8db9a..6d8f8fba3341 100644
--- a/include/sound/wm8904.h
+++ b/include/sound/wm8904.h
@@ -119,7 +119,7 @@
 #define WM8904_MIC_REGS  2
 #define WM8904_GPIO_REGS 4
 #define WM8904_DRC_REGS  4
-#define WM8904_EQ_REGS   25
+#define WM8904_EQ_REGS   24
 
 /**
  * DRC configurations are specified with a label and a set of register
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index ac9bf1c0e42d..5f48754dc36a 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -730,6 +730,7 @@ struct se_device {
 #define DF_EMULATED_VPD_UNIT_SERIAL             0x00000004
 #define DF_USING_UDEV_PATH                      0x00000008
 #define DF_USING_ALIAS                          0x00000010
+#define DF_READ_ONLY                            0x00000020
         /* Physical device queue depth */
         u32                     queue_depth;
         /* Used for SPC-2 reservations enforce of ISIDs */
diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index 9df61f1edb0f..3094618d382f 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -80,8 +80,10 @@
  *      SA_RESTORER     0x04000000
  */
 
+#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
 #define MINSIGSTKSZ     2048
 #define SIGSTKSZ        8192
+#endif
 
 #ifndef __ASSEMBLY__
 typedef struct {
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 8da542a2874d..ee124009e12a 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,17 +709,19 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
-#define __NR_membarrier 282
+#define __NR_userfaultfd 282
+__SYSCALL(__NR_userfaultfd, sys_userfaultfd)
+#define __NR_membarrier 283
 __SYSCALL(__NR_membarrier, sys_membarrier)
 
 #undef __NR_syscalls
-#define __NR_syscalls 283
+#define __NR_syscalls 284
 
 /*
  * All syscalls below here should go away really,
  * these are provided for both review and as a porting
  * help for the C library version.
-*
+ *
  * Last chance: are any of these important enough to
  * enable by default?
  */
diff --git a/include/uapi/linux/lwtunnel.h b/include/uapi/linux/lwtunnel.h
index 34141a5dfe74..f8b01887a495 100644
--- a/include/uapi/linux/lwtunnel.h
+++ b/include/uapi/linux/lwtunnel.h
@@ -21,8 +21,6 @@ enum lwtunnel_ip_t {
         LWTUNNEL_IP_SRC,
         LWTUNNEL_IP_TTL,
         LWTUNNEL_IP_TOS,
-        LWTUNNEL_IP_SPORT,
-        LWTUNNEL_IP_DPORT,
         LWTUNNEL_IP_FLAGS,
         __LWTUNNEL_IP_MAX,
 };
@@ -36,8 +34,6 @@ enum lwtunnel_ip6_t {
         LWTUNNEL_IP6_SRC,
         LWTUNNEL_IP6_HOPLIMIT,
         LWTUNNEL_IP6_TC,
-        LWTUNNEL_IP6_SPORT,
-        LWTUNNEL_IP6_DPORT,
         LWTUNNEL_IP6_FLAGS,
         __LWTUNNEL_IP6_MAX,
 };
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 32e07d8cbaf4..e663627a8ef3 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -323,10 +323,10 @@ enum ovs_key_attr {
         OVS_KEY_ATTR_MPLS,      /* array of struct ovs_key_mpls.
                                  * The implementation may restrict
                                  * the accepted length of the array. */
-        OVS_KEY_ATTR_CT_STATE,  /* u8 bitmask of OVS_CS_F_* */
+        OVS_KEY_ATTR_CT_STATE,  /* u32 bitmask of OVS_CS_F_* */
         OVS_KEY_ATTR_CT_ZONE,   /* u16 connection tracking zone. */
         OVS_KEY_ATTR_CT_MARK,   /* u32 connection tracking mark */
-        OVS_KEY_ATTR_CT_LABEL,  /* 16-octet connection tracking label */
+        OVS_KEY_ATTR_CT_LABELS, /* 16-octet connection tracking label */
 
 #ifdef __KERNEL__
         OVS_KEY_ATTR_TUNNEL_INFO,  /* struct ip_tunnel_info */
@@ -439,9 +439,9 @@ struct ovs_key_nd {
         __u8    nd_tll[ETH_ALEN];
 };
 
-#define OVS_CT_LABEL_LEN        16
-struct ovs_key_ct_label {
-        __u8    ct_label[OVS_CT_LABEL_LEN];
+#define OVS_CT_LABELS_LEN       16
+struct ovs_key_ct_labels {
+        __u8    ct_labels[OVS_CT_LABELS_LEN];
 };
 
 /* OVS_KEY_ATTR_CT_STATE flags */
@@ -449,9 +449,9 @@ struct ovs_key_ct_label {
 #define OVS_CS_F_ESTABLISHED       0x02 /* Part of an existing connection. */
 #define OVS_CS_F_RELATED           0x04 /* Related to an established
                                          * connection. */
-#define OVS_CS_F_INVALID           0x20 /* Could not track connection. */
-#define OVS_CS_F_REPLY_DIR         0x40 /* Flow is in the reply direction. */
-#define OVS_CS_F_TRACKED           0x80 /* Conntrack has occurred. */
+#define OVS_CS_F_REPLY_DIR         0x08 /* Flow is in the reply direction. */
+#define OVS_CS_F_INVALID           0x10 /* Could not track connection. */
+#define OVS_CS_F_TRACKED           0x20 /* Conntrack has occurred. */
 
 /**
  * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands.
@@ -618,22 +618,25 @@ struct ovs_action_hash {
 
 /**
  * enum ovs_ct_attr - Attributes for %OVS_ACTION_ATTR_CT action.
- * @OVS_CT_ATTR_FLAGS: u32 connection tracking flags.
+ * @OVS_CT_ATTR_COMMIT: If present, commits the connection to the conntrack
+ * table. This allows future packets for the same connection to be identified
+ * as 'established' or 'related'. The flow key for the current packet will
+ * retain the pre-commit connection state.
  * @OVS_CT_ATTR_ZONE: u16 connection tracking zone.
  * @OVS_CT_ATTR_MARK: u32 value followed by u32 mask. For each bit set in the
  * mask, the corresponding bit in the value is copied to the connection
  * tracking mark field in the connection.
- * @OVS_CT_ATTR_LABEL: %OVS_CT_LABEL_LEN value followed by %OVS_CT_LABEL_LEN
+ * @OVS_CT_ATTR_LABEL: %OVS_CT_LABELS_LEN value followed by %OVS_CT_LABELS_LEN
  * mask. For each bit set in the mask, the corresponding bit in the value is
  * copied to the connection tracking label field in the connection.
  * @OVS_CT_ATTR_HELPER: variable length string defining conntrack ALG.
  */
 enum ovs_ct_attr {
         OVS_CT_ATTR_UNSPEC,
-        OVS_CT_ATTR_FLAGS,      /* u8 bitmask of OVS_CT_F_*. */
+        OVS_CT_ATTR_COMMIT,     /* No argument, commits connection. */
         OVS_CT_ATTR_ZONE,       /* u16 zone id. */
         OVS_CT_ATTR_MARK,       /* mark to associate with this connection. */
-        OVS_CT_ATTR_LABEL,      /* label to associate with this connection. */
+        OVS_CT_ATTR_LABELS,     /* labels to associate with this connection. */
         OVS_CT_ATTR_HELPER,     /* netlink helper to assist detection of
                                    related connections. */
         __OVS_CT_ATTR_MAX
@@ -641,14 +644,6 @@ enum ovs_ct_attr {
 
 #define OVS_CT_ATTR_MAX (__OVS_CT_ATTR_MAX - 1)
 
-/*
- * OVS_CT_ATTR_FLAGS flags - bitmask of %OVS_CT_F_*
- * @OVS_CT_F_COMMIT: Commits the flow to the conntrack table. This allows
- * future packets for the same connection to be identified as 'established'
- * or 'related'.
- */
-#define OVS_CT_F_COMMIT         0x01
-
 /**
  * enum ovs_action_attr - Action types.
  *
@@ -705,7 +700,7 @@ enum ovs_action_attr {
                                        * data immediately followed by a mask.
                                        * The data must be zero for the unmasked
                                        * bits. */
-        OVS_ACTION_ATTR_CT,           /* One nested OVS_CT_ATTR_* . */
+        OVS_ACTION_ATTR_CT,           /* Nested OVS_CT_ATTR_* . */
 
         __OVS_ACTION_ATTR_MAX,        /* Nothing past this will be accepted
                                        * from userspace. */
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index 702024769c74..9d8f5d10c1e5 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -160,7 +160,7 @@ struct rtattr {
 
 /* Macros to handle rtattributes */
 
-#define RTA_ALIGNTO     4
+#define RTA_ALIGNTO     4U
 #define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
 #define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
                          (rta)->rta_len >= sizeof(struct rtattr) && \
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index df0e09bb7dd5..9057d7af3ae1 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -11,8 +11,6 @@
 
 #include <linux/types.h>
 
-#include <linux/compiler.h>
-
 #define UFFD_API ((__u64)0xAA)
 /*
  * After implementing the respective features it will become:
diff --git a/include/xen/interface/sched.h b/include/xen/interface/sched.h
index 9ce083960a25..f18490985fc8 100644
--- a/include/xen/interface/sched.h
+++ b/include/xen/interface/sched.h
@@ -107,5 +107,13 @@ struct sched_watchdog {
 #define SHUTDOWN_suspend    2  /* Clean up, save suspend info, kill.         */
 #define SHUTDOWN_crash      3  /* Tell controller we've crashed.             */
 #define SHUTDOWN_watchdog   4  /* Restart because watchdog time expired.     */
+/*
+ * Domain asked to perform 'soft reset' for it. The expected behavior is to
+ * reset internal Xen state for the domain returning it to the point where it
+ * was created but leaving the domain's memory contents and vCPU contexts
+ * intact. This will allow the domain to start over and set up all Xen specific
+ * interfaces again.
+ */
+#define SHUTDOWN_soft_reset 5
 
 #endif /* __XEN_PUBLIC_SCHED_H__ */