15 files changed, 181 insertions, 92 deletions

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 70654521dab6..5a4d39b4686b 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -250,6 +250,17 @@ static inline unsigned bio_segments(struct bio *bio)
         struct bio_vec bv;
         struct bvec_iter iter;
 
+        /*
+         * We special case discard/write same, because they interpret bi_size
+         * differently:
+         */
+
+        if (bio->bi_rw & REQ_DISCARD)
+                return 1;
+
+        if (bio->bi_rw & REQ_WRITE_SAME)
+                return 1;
+
         bio_for_each_segment(bv, bio, iter)
                 segs++;
 
@@ -332,6 +343,7 @@ extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
 extern struct bio *bio_clone_bioset(struct bio *, gfp_t, struct bio_set *bs);
 
 extern struct bio_set *fs_bio_set;
+unsigned int bio_integrity_tag_size(struct bio *bio);
 
 static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
 {
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 161b23105b1e..18ba8a627f46 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -83,6 +83,8 @@ struct blk_mq_ops {
          */
         rq_timed_out_fn         *timeout;
 
+        softirq_done_fn         *complete;
+
         /*
          * Override for hctx allocations (should probably go)
          */
@@ -119,11 +121,12 @@ void blk_mq_init_commands(struct request_queue *, void (*init)(void *data, struc
 
 void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule);
 
-void blk_mq_insert_request(struct request_queue *, struct request *, bool);
+void blk_mq_insert_request(struct request_queue *, struct request *,
+                bool, bool);
 void blk_mq_run_queues(struct request_queue *q, bool async);
 void blk_mq_free_request(struct request *rq);
 bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
-struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, bool reserved);
+struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp);
 struct request *blk_mq_alloc_reserved_request(struct request_queue *q, int rw, gfp_t gfp);
 struct request *blk_mq_rq_from_tag(struct request_queue *q, unsigned int tag);
 
@@ -133,6 +136,8 @@ void blk_mq_free_single_hw_queue(struct blk_mq_hw_ctx *, unsigned int);
 
 void blk_mq_end_io(struct request *rq, int error);
 
+void blk_mq_complete_request(struct request *rq);
+
 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);
 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx);
 void blk_mq_stop_hw_queues(struct request_queue *q);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8678c4322b44..4afa4f8f6090 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -98,7 +98,7 @@ struct request {
         struct list_head queuelist;
         union {
                 struct call_single_data csd;
-                struct work_struct mq_flush_data;
+                struct work_struct mq_flush_work;
         };
 
         struct request_queue *q;
@@ -448,13 +448,8 @@ struct request_queue {
         unsigned long           flush_pending_since;
         struct list_head        flush_queue[2];
         struct list_head        flush_data_in_flight;
-        union {
-                struct request  flush_rq;
-                struct {
-                        spinlock_t mq_flush_lock;
-                        struct work_struct mq_flush_work;
-                };
-        };
+        struct request          *flush_rq;
+        spinlock_t              mq_flush_lock;
 
         struct mutex            sysfs_lock;
 
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index 2f0543f7510c..f9bbbb472663 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -11,7 +11,9 @@
 #define CAN_SKB_H
 
 #include <linux/types.h>
+#include <linux/skbuff.h>
 #include <linux/can.h>
+#include <net/sock.h>
 
 /*
  * The struct can_skb_priv is used to transport additional information along
@@ -42,4 +44,40 @@ static inline void can_skb_reserve(struct sk_buff *skb)
         skb_reserve(skb, sizeof(struct can_skb_priv));
 }
 
+static inline void can_skb_destructor(struct sk_buff *skb)
+{
+        sock_put(skb->sk);
+}
+
+static inline void can_skb_set_owner(struct sk_buff *skb, struct sock *sk)
+{
+        if (sk) {
+                sock_hold(sk);
+                skb->destructor = can_skb_destructor;
+                skb->sk = sk;
+        }
+}
+
+/*
+ * returns an unshared skb owned by the original sock to be echo'ed back
+ */
+static inline struct sk_buff *can_create_echo_skb(struct sk_buff *skb)
+{
+        if (skb_shared(skb)) {
+                struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
+
+                if (likely(nskb)) {
+                        can_skb_set_owner(nskb, skb->sk);
+                        consume_skb(skb);
+                        return nskb;
+                } else {
+                        kfree_skb(skb);
+                        return NULL;
+                }
+        }
+
+        /* we can assume to have an unshared skb with proper owner */
+        return skb;
+}
+
 #endif /* CAN_SKB_H */
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index ded429966c1f..2507fd2a1eb4 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -75,11 +75,7 @@
  *
  * (asm goto is automatically volatile - the naming reflects this.)
  */
-#if GCC_VERSION <= 40801
-# define asm_volatile_goto(x...)        do { asm goto(x); asm (""); } while (0)
-#else
-# define asm_volatile_goto(x...)        do { asm goto(x); } while (0)
-#endif
+#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
 
 #ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
 #if GCC_VERSION >= 40400
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 4d34dbbbad4d..7a8144fef406 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -4,8 +4,6 @@
 #include <linux/err.h>
 #include <linux/kernel.h>
 
-#ifdef CONFIG_GPIOLIB
-
 struct device;
 struct gpio_chip;
 
@@ -18,6 +16,8 @@ struct gpio_chip;
  */
 struct gpio_desc;
 
+#ifdef CONFIG_GPIOLIB
+
 /* Acquire and dispose GPIOs */
 struct gpio_desc *__must_check gpiod_get(struct device *dev,
                                          const char *con_id);
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 15da677478dd..344883dce584 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -875,7 +875,7 @@ struct vmbus_channel_relid_released {
 struct vmbus_channel_initiate_contact {
         struct vmbus_channel_message_header header;
         u32 vmbus_version_requested;
-        u32 padding2;
+        u32 target_vcpu; /* The VCPU the host should respond to */
         u64 interrupt_page;
         u64 monitor_page1;
         u64 monitor_page2;
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 0053adde0ed9..a2678d35b5a2 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -158,6 +158,11 @@ devm_request_irq(struct device *dev, unsigned int irq, irq_handler_t handler,
                                          devname, dev_id);
 }
 
+extern int __must_check
+devm_request_any_context_irq(struct device *dev, unsigned int irq,
+                 irq_handler_t handler, unsigned long irqflags,
+                 const char *devname, void *dev_id);
+
 extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id);
 
 /*
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 554548cd3dd4..130bc8d77fa5 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -38,8 +38,10 @@
 #include <linux/pci.h>
 #include <linux/spinlock_types.h>
 #include <linux/semaphore.h>
+#include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/radix-tree.h>
+
 #include <linux/mlx5/device.h>
 #include <linux/mlx5/doorbell.h>
 
@@ -227,6 +229,7 @@ struct mlx5_uuar_info {
          * protect uuar allocation data structs
          */
         struct mutex            lock;
+        u32                     ver;
 };
 
 struct mlx5_bf {
diff --git a/include/linux/of.h b/include/linux/of.h
index 70c64ba17fa5..435cb995904d 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -169,35 +169,15 @@ static inline const char *of_node_full_name(const struct device_node *np)
 
 extern struct device_node *of_find_node_by_name(struct device_node *from,
         const char *name);
-#define for_each_node_by_name(dn, name) \
-        for (dn = of_find_node_by_name(NULL, name); dn; \
-             dn = of_find_node_by_name(dn, name))
 extern struct device_node *of_find_node_by_type(struct device_node *from,
         const char *type);
-#define for_each_node_by_type(dn, type) \
-        for (dn = of_find_node_by_type(NULL, type); dn; \
-             dn = of_find_node_by_type(dn, type))
 extern struct device_node *of_find_compatible_node(struct device_node *from,
         const char *type, const char *compat);
-#define for_each_compatible_node(dn, type, compatible) \
-        for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
-             dn = of_find_compatible_node(dn, type, compatible))
 extern struct device_node *of_find_matching_node_and_match(
         struct device_node *from,
         const struct of_device_id *matches,
         const struct of_device_id **match);
-static inline struct device_node *of_find_matching_node(
-        struct device_node *from,
-        const struct of_device_id *matches)
-{
-        return of_find_matching_node_and_match(from, matches, NULL);
-}
-#define for_each_matching_node(dn, matches) \
-        for (dn = of_find_matching_node(NULL, matches); dn; \
-             dn = of_find_matching_node(dn, matches))
-#define for_each_matching_node_and_match(dn, matches, match) \
-        for (dn = of_find_matching_node_and_match(NULL, matches, match); \
-             dn; dn = of_find_matching_node_and_match(dn, matches, match))
+
 extern struct device_node *of_find_node_by_path(const char *path);
 extern struct device_node *of_find_node_by_phandle(phandle handle);
 extern struct device_node *of_get_parent(const struct device_node *node);
@@ -209,43 +189,11 @@ extern struct device_node *of_get_next_available_child(
 
 extern struct device_node *of_get_child_by_name(const struct device_node *node,
                                         const char *name);
-#define for_each_child_of_node(parent, child) \
-        for (child = of_get_next_child(parent, NULL); child != NULL; \
-             child = of_get_next_child(parent, child))
-
-#define for_each_available_child_of_node(parent, child) \
-        for (child = of_get_next_available_child(parent, NULL); child != NULL; \
-             child = of_get_next_available_child(parent, child))
-
-static inline int of_get_child_count(const struct device_node *np)
-{
-        struct device_node *child;
-        int num = 0;
-
-        for_each_child_of_node(np, child)
-                num++;
-
-        return num;
-}
-
-static inline int of_get_available_child_count(const struct device_node *np)
-{
-        struct device_node *child;
-        int num = 0;
-
-        for_each_available_child_of_node(np, child)
-                num++;
-
-        return num;
-}
 
 /* cache lookup */
 extern struct device_node *of_find_next_cache_node(const struct device_node *);
 extern struct device_node *of_find_node_with_property(
         struct device_node *from, const char *prop_name);
-#define for_each_node_with_property(dn, prop_name) \
-        for (dn = of_find_node_with_property(NULL, prop_name); dn; \
-             dn = of_find_node_with_property(dn, prop_name))
 
 extern struct property *of_find_property(const struct device_node *np,
                                          const char *name,
@@ -367,42 +315,53 @@ static inline struct device_node *of_find_node_by_name(struct device_node *from,
         return NULL;
 }
 
-static inline struct device_node *of_get_parent(const struct device_node *node)
+static inline struct device_node *of_find_node_by_type(struct device_node *from,
+        const char *type)
 {
         return NULL;
 }
 
-static inline bool of_have_populated_dt(void)
+static inline struct device_node *of_find_matching_node_and_match(
+        struct device_node *from,
+        const struct of_device_id *matches,
+        const struct of_device_id **match)
 {
-        return false;
+        return NULL;
 }
 
-/* Kill an unused variable warning on a device_node pointer */
-static inline void __of_use_dn(const struct device_node *np)
+static inline struct device_node *of_get_parent(const struct device_node *node)
 {
+        return NULL;
 }
 
-#define for_each_child_of_node(parent, child) \
-        while (__of_use_dn(parent), __of_use_dn(child), 0)
+static inline struct device_node *of_get_next_child(
+        const struct device_node *node, struct device_node *prev)
+{
+        return NULL;
+}
 
-#define for_each_available_child_of_node(parent, child) \
-        while (0)
+static inline struct device_node *of_get_next_available_child(
+        const struct device_node *node, struct device_node *prev)
+{
+        return NULL;
+}
 
-static inline struct device_node *of_get_child_by_name(
-                                        const struct device_node *node,
-                                        const char *name)
+static inline struct device_node *of_find_node_with_property(
+        struct device_node *from, const char *prop_name)
 {
         return NULL;
 }
 
-static inline int of_get_child_count(const struct device_node *np)
+static inline bool of_have_populated_dt(void)
 {
-        return 0;
+        return false;
 }
 
-static inline int of_get_available_child_count(const struct device_node *np)
+static inline struct device_node *of_get_child_by_name(
+                                        const struct device_node *node,
+                                        const char *name)
 {
-        return 0;
+        return NULL;
 }
 
 static inline int of_device_is_compatible(const struct device_node *device,
@@ -569,6 +528,13 @@ extern int of_node_to_nid(struct device_node *np);
 static inline int of_node_to_nid(struct device_node *device) { return 0; }
 #endif
 
+static inline struct device_node *of_find_matching_node(
+        struct device_node *from,
+        const struct of_device_id *matches)
+{
+        return of_find_matching_node_and_match(from, matches, NULL);
+}
+
 /**
  * of_property_read_bool - Findfrom a property
  * @np:         device node from which the property value is to be read.
@@ -618,6 +584,55 @@ static inline int of_property_read_u32(const struct device_node *np,
                 s;                                              \
                 s = of_prop_next_string(prop, s))
 
+#define for_each_node_by_name(dn, name) \
+        for (dn = of_find_node_by_name(NULL, name); dn; \
+             dn = of_find_node_by_name(dn, name))
+#define for_each_node_by_type(dn, type) \
+        for (dn = of_find_node_by_type(NULL, type); dn; \
+             dn = of_find_node_by_type(dn, type))
+#define for_each_compatible_node(dn, type, compatible) \
+        for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
+             dn = of_find_compatible_node(dn, type, compatible))
+#define for_each_matching_node(dn, matches) \
+        for (dn = of_find_matching_node(NULL, matches); dn; \
+             dn = of_find_matching_node(dn, matches))
+#define for_each_matching_node_and_match(dn, matches, match) \
+        for (dn = of_find_matching_node_and_match(NULL, matches, match); \
+             dn; dn = of_find_matching_node_and_match(dn, matches, match))
+
+#define for_each_child_of_node(parent, child) \
+        for (child = of_get_next_child(parent, NULL); child != NULL; \
+             child = of_get_next_child(parent, child))
+#define for_each_available_child_of_node(parent, child) \
+        for (child = of_get_next_available_child(parent, NULL); child != NULL; \
+             child = of_get_next_available_child(parent, child))
+
+#define for_each_node_with_property(dn, prop_name) \
+        for (dn = of_find_node_with_property(NULL, prop_name); dn; \
+             dn = of_find_node_with_property(dn, prop_name))
+
+static inline int of_get_child_count(const struct device_node *np)
+{
+        struct device_node *child;
+        int num = 0;
+
+        for_each_child_of_node(np, child)
+                num++;
+
+        return num;
+}
+
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+        struct device_node *child;
+        int num = 0;
+
+        for_each_available_child_of_node(np, child)
+                num++;
+
+        return num;
+}
+
 #if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE)
 extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *);
 extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop);
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 8d7dd6768cb7..ef370210ffb2 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -78,11 +78,13 @@ static inline int of_device_uevent_modalias(struct device *dev,
 
 static inline void of_device_node_put(struct device *dev) { }
 
-static inline const struct of_device_id *of_match_device(
+static inline const struct of_device_id *__of_match_device(
                 const struct of_device_id *matches, const struct device *dev)
 {
         return NULL;
 }
+#define of_match_device(matches, dev)   \
+        __of_match_device(of_match_ptr(matches), (dev))
 
 static inline struct device_node *of_cpu_device_node_get(int cpu)
 {
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index e273e5ac19c9..3f83459dbb20 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -146,7 +146,9 @@ static inline void phy_set_bus_width(struct phy *phy, int bus_width)
         phy->attrs.bus_width = bus_width;
 }
 struct phy *phy_get(struct device *dev, const char *string);
+struct phy *phy_optional_get(struct device *dev, const char *string);
 struct phy *devm_phy_get(struct device *dev, const char *string);
+struct phy *devm_phy_optional_get(struct device *dev, const char *string);
 void phy_put(struct phy *phy);
 void devm_phy_put(struct device *dev, struct phy *phy);
 struct phy *of_phy_simple_xlate(struct device *dev,
@@ -232,11 +234,23 @@ static inline struct phy *phy_get(struct device *dev, const char *string)
         return ERR_PTR(-ENOSYS);
 }
 
+static inline struct phy *phy_optional_get(struct device *dev,
+                                           const char *string)
+{
+        return ERR_PTR(-ENOSYS);
+}
+
 static inline struct phy *devm_phy_get(struct device *dev, const char *string)
 {
         return ERR_PTR(-ENOSYS);
 }
 
+static inline struct phy *devm_phy_optional_get(struct device *dev,
+                                                const char *string)
+{
+        return ERR_PTR(-ENOSYS);
+}
+
 static inline void phy_put(struct phy *phy)
 {
 }
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 3834f43f9993..6ae004e437ea 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -188,6 +188,9 @@ static inline void kick_all_cpus_sync(void) {  }
  */
 extern void arch_disable_smp_support(void);
 
+extern void arch_enable_nonboot_cpus_begin(void);
+extern void arch_enable_nonboot_cpus_end(void);
+
 void smp_setup_processor_id(void);
 
 #endif /* __LINUX_SMP_H */
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index a1d4ca290862..4203c66d8803 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -273,7 +273,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *      message while queuing transfers that arrive in the meantime. When the
  *      driver is finished with this message, it must call
  *      spi_finalize_current_message() so the subsystem can issue the next
- *      transfer
+ *      message
  * @unprepare_transfer_hardware: there are currently no more messages on the
  *      queue so the subsystem notifies the driver that it may relax the
  *      hardware by issuing this call
@@ -287,7 +287,10 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *                  - return 1 if the transfer is still in progress. When
  *                    the driver is finished with this transfer it must
  *                    call spi_finalize_current_transfer() so the subsystem
- *                    can issue the next transfer
+ *                    can issue the next transfer. Note: transfer_one and
+ *                    transfer_one_message are mutually exclusive; when both
+ *                    are set, the generic subsystem does not call your
+ *                    transfer_one callback.
  * @unprepare_message: undo any work done by prepare_message().
  * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
  *      number. Any individual value may be -ENOENT for CS lines that
diff --git a/include/linux/usb.h b/include/linux/usb.h
index c716da18c668..7f6eb859873e 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1265,8 +1265,6 @@ typedef void (*usb_complete_t)(struct urb *);
  * @sg: scatter gather buffer list, the buffer size of each element in
  *      the list (except the last) must be divisible by the endpoint's
  *      max packet size if no_sg_constraint isn't set in 'struct usb_bus'
- *      (FIXME: scatter-gather under xHCI is broken for periodic transfers.
- *      Do not use urb->sg for interrupt endpoints for now, only bulk.)
  * @num_mapped_sgs: (internal) number of mapped sg entries
  * @num_sgs: number of entries in the sg list
  * @transfer_buffer_length: How big is transfer_buffer.  The transfer may