Merge branch 'linus' into smp/hotplug

Apply upstream changes to avoid conflicts with pending patches.

18 files changed, 98 insertions, 100 deletions

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 59ffaa68b11b..23ddf4b46a9b 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -71,7 +71,8 @@ static inline bool bio_has_data(struct bio *bio)
 {
         if (bio &&
             bio->bi_iter.bi_size &&
-            bio_op(bio) != REQ_OP_DISCARD)
+            bio_op(bio) != REQ_OP_DISCARD &&
+            bio_op(bio) != REQ_OP_SECURE_ERASE)
                 return true;
 
         return false;
@@ -79,7 +80,9 @@ static inline bool bio_has_data(struct bio *bio)
 
 static inline bool bio_no_advance_iter(struct bio *bio)
 {
-        return bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_WRITE_SAME;
+        return bio_op(bio) == REQ_OP_DISCARD ||
+               bio_op(bio) == REQ_OP_SECURE_ERASE ||
+               bio_op(bio) == REQ_OP_WRITE_SAME;
 }
 
 static inline bool bio_is_rw(struct bio *bio)
@@ -199,6 +202,9 @@ static inline unsigned bio_segments(struct bio *bio)
         if (bio_op(bio) == REQ_OP_DISCARD)
                 return 1;
 
+        if (bio_op(bio) == REQ_OP_SECURE_ERASE)
+                return 1;
+
         if (bio_op(bio) == REQ_OP_WRITE_SAME)
                 return 1;
 
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 2c210b6a7bcf..e79055c8b577 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -882,7 +882,7 @@ static inline unsigned int blk_rq_cur_sectors(const struct request *rq)
 static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q,
                                                      int op)
 {
-        if (unlikely(op == REQ_OP_DISCARD))
+        if (unlikely(op == REQ_OP_DISCARD || op == REQ_OP_SECURE_ERASE))
                 return min(q->limits.max_discard_sectors, UINT_MAX >> 9);
 
         if (unlikely(op == REQ_OP_WRITE_SAME))
@@ -913,7 +913,9 @@ static inline unsigned int blk_rq_get_max_sectors(struct request *rq,
         if (unlikely(rq->cmd_type != REQ_TYPE_FS))
                 return q->limits.max_hw_sectors;
 
-        if (!q->limits.chunk_sectors || (req_op(rq) == REQ_OP_DISCARD))
+        if (!q->limits.chunk_sectors ||
+            req_op(rq) == REQ_OP_DISCARD ||
+            req_op(rq) == REQ_OP_SECURE_ERASE)
                 return blk_queue_get_max_sectors(q, req_op(rq));
 
         return min(blk_max_size_offset(q, offset),
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 701b64a3b7c5..89b65b82d98f 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -74,7 +74,8 @@ static inline void bvec_iter_advance(const struct bio_vec *bv,
                   "Attempted to advance past end of bvec iter\n");
 
         while (bytes) {
-                unsigned len = min(bytes, bvec_iter_len(bv, *iter));
+                unsigned iter_len = bvec_iter_len(bv, *iter);
+                unsigned len = min(bytes, iter_len);
 
                 bytes -= len;
                 iter->bi_size -= len;
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index e2949397c19b..8dbc8929a6a0 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -242,7 +242,11 @@
  */
 #define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
 
-#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
+/*
+ * sparse (__CHECKER__) pretends to be gcc, but can't do constant
+ * folding in __builtin_bswap*() (yet), so don't set these for it.
+ */
+#if defined(CONFIG_ARCH_USE_BUILTIN_BSWAP) && !defined(__CHECKER__)
 #if GCC_VERSION >= 40400
 #define __HAVE_BUILTIN_BSWAP32__
 #define __HAVE_BUILTIN_BSWAP64__
@@ -250,7 +254,7 @@
 #if GCC_VERSION >= 40800
 #define __HAVE_BUILTIN_BSWAP16__
 #endif
-#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP && !__CHECKER__ */
 
 #if GCC_VERSION >= 50000
 #define KASAN_ABI_VERSION 4
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 1bb954842725..436aa4e42221 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -527,13 +527,13 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  * object's lifetime is managed by something other than RCU.  That
  * "something other" might be reference counting or simple immortality.
  *
- * The seemingly unused void * variable is to validate @p is indeed a pointer
- * type. All pointer types silently cast to void *.
+ * The seemingly unused size_t variable is to validate @p is indeed a pointer
+ * type by making sure it can be dereferenced.
  */
 #define lockless_dereference(p) \
 ({ \
         typeof(p) _________p1 = READ_ONCE(p); \
-        __maybe_unused const void * const _________p2 = _________p1; \
+        size_t __maybe_unused __size_of_ptr = sizeof(*(p)); \
         smp_read_barrier_depends(); /* Dependency order vs. p above. */ \
         (_________p1); \
 })
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index d2ba7d334039..1ffbf2a8cb99 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -304,6 +304,8 @@ struct tegra_mipi_device;
 
 struct tegra_mipi_device *tegra_mipi_request(struct device *device);
 void tegra_mipi_free(struct tegra_mipi_device *device);
+int tegra_mipi_enable(struct tegra_mipi_device *device);
+int tegra_mipi_disable(struct tegra_mipi_device *device);
 int tegra_mipi_calibrate(struct tegra_mipi_device *device);
 
 #endif
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 56b0b7ec66aa..99ac022edc60 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -337,6 +337,7 @@
  */
 #define E_ITS_MOVI_UNMAPPED_INTERRUPT           0x010107
 #define E_ITS_MOVI_UNMAPPED_COLLECTION          0x010109
+#define E_ITS_INT_UNMAPPED_INTERRUPT            0x010307
 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT          0x010507
 #define E_ITS_MAPD_DEVICE_OOR                   0x010801
 #define E_ITS_MAPC_PROCNUM_OOR                  0x010902
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 01e908ac4a39..9c28b4d4c90b 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1113,9 +1113,21 @@ struct kvm_device {
 /* create, destroy, and name are mandatory */
 struct kvm_device_ops {
         const char *name;
+
+        /*
+         * create is called holding kvm->lock and any operations not suitable
+         * to do while holding the lock should be deferred to init (see
+         * below).
+         */
         int (*create)(struct kvm_device *dev, u32 type);
 
         /*
+         * init is called after create if create is successful and is called
+         * outside of holding kvm->lock.
+         */
+        void (*init)(struct kvm_device *dev);
+
+        /*
          * Destroy is responsible for freeing dev.
          *
          * Destroy may be called before or after destructors are called
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 4f0bfe5912b2..e8c81fbd5f9c 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -270,6 +270,8 @@ enum {
         MSI_FLAG_MULTI_PCI_MSI          = (1 << 2),
         /* Support PCI MSIX interrupts */
         MSI_FLAG_PCI_MSIX               = (1 << 3),
+        /* Needs early activate, required for PCI */
+        MSI_FLAG_ACTIVATE_EARLY         = (1 << 4),
 };
 
 int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 076df5360ba5..3a788bf0affd 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3891,8 +3891,7 @@ void netdev_default_l2upper_neigh_destroy(struct net_device *dev,
 extern u8 netdev_rss_key[NETDEV_RSS_KEY_LEN] __read_mostly;
 void netdev_rss_key_fill(void *buffer, size_t len);
 
-int dev_get_nest_level(struct net_device *dev,
-                       bool (*type_check)(const struct net_device *dev));
+int dev_get_nest_level(struct net_device *dev);
 int skb_checksum_help(struct sk_buff *skb);
 struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
                                   netdev_features_t features, bool tx_path);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 2599a980340f..fbc1fa625c3e 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1251,10 +1251,12 @@ resource_size_t pcibios_iov_resource_alignment(struct pci_dev *dev, int resno);
 int pci_set_vga_state(struct pci_dev *pdev, bool decode,
                       unsigned int command_bits, u32 flags);
 
-#define PCI_IRQ_NOLEGACY        (1 << 0) /* don't use legacy interrupts */
-#define PCI_IRQ_NOMSI           (1 << 1) /* don't use MSI interrupts */
-#define PCI_IRQ_NOMSIX          (1 << 2) /* don't use MSI-X interrupts */
-#define PCI_IRQ_NOAFFINITY      (1 << 3) /* don't auto-assign affinity */
+#define PCI_IRQ_LEGACY          (1 << 0) /* allow legacy interrupts */
+#define PCI_IRQ_MSI             (1 << 1) /* allow MSI interrupts */
+#define PCI_IRQ_MSIX            (1 << 2) /* allow MSI-X interrupts */
+#define PCI_IRQ_AFFINITY        (1 << 3) /* auto-assign affinity */
+#define PCI_IRQ_ALL_TYPES \
+        (PCI_IRQ_LEGACY | PCI_IRQ_MSI | PCI_IRQ_MSIX)
 
 /* kmem_cache style wrapper around pci_alloc_consistent() */
 
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 8ed4326164cc..2b6b43cc0dd5 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -743,7 +743,9 @@ struct perf_event_context {
         u64                             parent_gen;
         u64                             generation;
         int                             pin_count;
+#ifdef CONFIG_CGROUP_PERF
         int                             nr_cgroups;      /* cgroup evts */
+#endif
         void                            *task_ctx_data; /* pmu specific data */
         struct rcu_head                 rcu_head;
 };
@@ -769,7 +771,9 @@ struct perf_cpu_context {
         unsigned int                    hrtimer_active;
 
         struct pmu                      *unique_pmu;
+#ifdef CONFIG_CGROUP_PERF
         struct perf_cgroup              *cgrp;
+#endif
 };
 
 struct perf_output_handle {
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index b1e3c57c7117..d6c4177df7cb 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -70,8 +70,16 @@ struct qed_dbcx_pfc_params {
         u8 max_tc;
 };
 
+enum qed_dcbx_sf_ieee_type {
+        QED_DCBX_SF_IEEE_ETHTYPE,
+        QED_DCBX_SF_IEEE_TCP_PORT,
+        QED_DCBX_SF_IEEE_UDP_PORT,
+        QED_DCBX_SF_IEEE_TCP_UDP_PORT
+};
+
 struct qed_app_entry {
         bool ethtype;
+        enum qed_dcbx_sf_ieee_type sf_ieee;
         bool enabled;
         u8 prio;
         u16 proto_id;
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index de1f64318fc4..fcb4c3646173 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -705,70 +705,6 @@ typedef struct sctp_auth_chunk {
         sctp_authhdr_t auth_hdr;
 } __packed sctp_auth_chunk_t;
 
-struct sctp_info {
-        __u32   sctpi_tag;
-        __u32   sctpi_state;
-        __u32   sctpi_rwnd;
-        __u16   sctpi_unackdata;
-        __u16   sctpi_penddata;
-        __u16   sctpi_instrms;
-        __u16   sctpi_outstrms;
-        __u32   sctpi_fragmentation_point;
-        __u32   sctpi_inqueue;
-        __u32   sctpi_outqueue;
-        __u32   sctpi_overall_error;
-        __u32   sctpi_max_burst;
-        __u32   sctpi_maxseg;
-        __u32   sctpi_peer_rwnd;
-        __u32   sctpi_peer_tag;
-        __u8    sctpi_peer_capable;
-        __u8    sctpi_peer_sack;
-        __u16   __reserved1;
-
-        /* assoc status info */
-        __u64   sctpi_isacks;
-        __u64   sctpi_osacks;
-        __u64   sctpi_opackets;
-        __u64   sctpi_ipackets;
-        __u64   sctpi_rtxchunks;
-        __u64   sctpi_outofseqtsns;
-        __u64   sctpi_idupchunks;
-        __u64   sctpi_gapcnt;
-        __u64   sctpi_ouodchunks;
-        __u64   sctpi_iuodchunks;
-        __u64   sctpi_oodchunks;
-        __u64   sctpi_iodchunks;
-        __u64   sctpi_octrlchunks;
-        __u64   sctpi_ictrlchunks;
-
-        /* primary transport info */
-        struct sockaddr_storage sctpi_p_address;
-        __s32   sctpi_p_state;
-        __u32   sctpi_p_cwnd;
-        __u32   sctpi_p_srtt;
-        __u32   sctpi_p_rto;
-        __u32   sctpi_p_hbinterval;
-        __u32   sctpi_p_pathmaxrxt;
-        __u32   sctpi_p_sackdelay;
-        __u32   sctpi_p_sackfreq;
-        __u32   sctpi_p_ssthresh;
-        __u32   sctpi_p_partial_bytes_acked;
-        __u32   sctpi_p_flight_size;
-        __u16   sctpi_p_error;
-        __u16   __reserved2;
-
-        /* sctp sock info */
-        __u32   sctpi_s_autoclose;
-        __u32   sctpi_s_adaptation_ind;
-        __u32   sctpi_s_pd_point;
-        __u8    sctpi_s_nodelay;
-        __u8    sctpi_s_disable_fragments;
-        __u8    sctpi_s_v4mapped;
-        __u8    sctpi_s_frag_interleave;
-        __u32   sctpi_s_type;
-        __u32   __reserved3;
-};
-
 struct sctp_infox {
         struct sctp_info *sctpinfo;
         struct sctp_association *asoc;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 6f0b3e0adc73..0f665cb26b50 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2847,6 +2847,18 @@ static inline int skb_linearize_cow(struct sk_buff *skb)
                __skb_linearize(skb) : 0;
 }
 
+static __always_inline void
+__skb_postpull_rcsum(struct sk_buff *skb, const void *start, unsigned int len,
+                     unsigned int off)
+{
+        if (skb->ip_summed == CHECKSUM_COMPLETE)
+                skb->csum = csum_block_sub(skb->csum,
+                                           csum_partial(start, len, 0), off);
+        else if (skb->ip_summed == CHECKSUM_PARTIAL &&
+                 skb_checksum_start_offset(skb) < 0)
+                skb->ip_summed = CHECKSUM_NONE;
+}
+
 /**
  *      skb_postpull_rcsum - update checksum for received skb after pull
  *      @skb: buffer to update
@@ -2857,36 +2869,38 @@ static inline int skb_linearize_cow(struct sk_buff *skb)
  *      update the CHECKSUM_COMPLETE checksum, or set ip_summed to
  *      CHECKSUM_NONE so that it can be recomputed from scratch.
  */
-
 static inline void skb_postpull_rcsum(struct sk_buff *skb,
                                       const void *start, unsigned int len)
 {
-        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;
+        __skb_postpull_rcsum(skb, start, len, 0);
 }
 
-unsigned char *skb_pull_rcsum(struct sk_buff *skb, unsigned int len);
+static __always_inline void
+__skb_postpush_rcsum(struct sk_buff *skb, const void *start, unsigned int len,
+                     unsigned int off)
+{
+        if (skb->ip_summed == CHECKSUM_COMPLETE)
+                skb->csum = csum_block_add(skb->csum,
+                                           csum_partial(start, len, 0), off);
+}
 
+/**
+ *      skb_postpush_rcsum - update checksum for received skb after push
+ *      @skb: buffer to update
+ *      @start: start of data after push
+ *      @len: length of data pushed
+ *
+ *      After doing a push on a received packet, you need to call this to
+ *      update the CHECKSUM_COMPLETE checksum.
+ */
 static inline void skb_postpush_rcsum(struct sk_buff *skb,
                                       const void *start, unsigned int len)
 {
-        /* For performing the reverse operation to skb_postpull_rcsum(),
-         * we can instead of ...
-         *
-         *   skb->csum = csum_add(skb->csum, csum_partial(start, len, 0));
-         *
-         * ... just use this equivalent version here to save a few
-         * instructions. Feeding csum of 0 in csum_partial() and later
-         * on adding skb->csum is equivalent to feed skb->csum in the
-         * first place.
-         */
-        if (skb->ip_summed == CHECKSUM_COMPLETE)
-                skb->csum = csum_partial(start, len, skb->csum);
+        __skb_postpush_rcsum(skb, start, len, 0);
 }
 
+unsigned char *skb_pull_rcsum(struct sk_buff *skb, unsigned int len);
+
 /**
  *      skb_push_rcsum - push skb and update receive checksum
  *      @skb: buffer to update
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index b6810c92b8bb..5c02b0691587 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -195,6 +195,8 @@ int		rpc_clnt_add_xprt(struct rpc_clnt *, struct xprt_create *,
                                 struct rpc_xprt *,
                                 void *),
                         void *data);
+void            rpc_cap_max_reconnect_timeout(struct rpc_clnt *clnt,
+                        unsigned long timeo);
 
 const char *rpc_proc_name(const struct rpc_task *task);
 #endif /* __KERNEL__ */
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 5e3e1b63dbb3..a16070dd03ee 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -218,7 +218,8 @@ struct rpc_xprt {
         struct work_struct      task_cleanup;
         struct timer_list       timer;
         unsigned long           last_used,
-                                idle_timeout;
+                                idle_timeout,
+                                max_reconnect_timeout;
 
         /*
          * Send stuff
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 697e160c78d0..a4f7203a9017 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -42,6 +42,8 @@ extern int proc_dostring(struct ctl_table *, int,
                          void __user *, size_t *, loff_t *);
 extern int proc_dointvec(struct ctl_table *, int,
                          void __user *, size_t *, loff_t *);
+extern int proc_douintvec(struct ctl_table *, int,
+                         void __user *, size_t *, loff_t *);
 extern int proc_dointvec_minmax(struct ctl_table *, int,
                                 void __user *, size_t *, loff_t *);
 extern int proc_dointvec_jiffies(struct ctl_table *, int,