Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Fun set of conflict resolutions here...

For the mac80211 stuff, these were fortunately just parallel
adds.  Trivially resolved.

In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the
function phy_disable_interrupts() earlier in the file, whilst in
'net-next' the phy_error() call from this function was removed.

In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the
'rt_table_id' member of rtable collided with a bug fix in 'net' that
added a new struct member "rt_mtu_locked" which needs to be copied
over here.

The mlxsw driver conflict consisted of net-next separating
the span code and definitions into separate files, whilst
a 'net' bug fix made some changes to that moved code.

The mlx5 infiniband conflict resolution was quite non-trivial,
the RDMA tree's merge commit was used as a guide here, and
here are their notes:

====================

    Due to bug fixes found by the syzkaller bot and taken into the for-rc
    branch after development for the 4.17 merge window had already started
    being taken into the for-next branch, there were fairly non-trivial
    merge issues that would need to be resolved between the for-rc branch
    and the for-next branch.  This merge resolves those conflicts and
    provides a unified base upon which ongoing development for 4.17 can
    be based.

    Conflicts:
            drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f9524
            (IB/mlx5: Fix cleanup order on unload) added to for-rc and
            commit b5ca15ad7e61 (IB/mlx5: Add proper representors support)
            add as part of the devel cycle both needed to modify the
            init/de-init functions used by mlx5.  To support the new
            representors, the new functions added by the cleanup patch
            needed to be made non-static, and the init/de-init list
            added by the representors patch needed to be modified to
            match the init/de-init list changes made by the cleanup
            patch.
    Updates:
            drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function
            prototypes added by representors patch to reflect new function
            names as changed by cleanup patch
            drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init
            stage list to match new order from cleanup patch
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

20 files changed, 172 insertions, 36 deletions

diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 9f242b876fde..f8e76d01a5ad 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -755,13 +755,13 @@ struct sock_cgroup_data {
  * updaters and return part of the previous pointer as the prioidx or
  * classid.  Such races are short-lived and the result isn't critical.
  */
-static inline u16 sock_cgroup_prioidx(struct sock_cgroup_data *skcd)
+static inline u16 sock_cgroup_prioidx(const struct sock_cgroup_data *skcd)
 {
         /* fallback to 1 which is always the ID of the root cgroup */
         return (skcd->is_data & 1) ? skcd->prioidx : 1;
 }
 
-static inline u32 sock_cgroup_classid(struct sock_cgroup_data *skcd)
+static inline u32 sock_cgroup_classid(const struct sock_cgroup_data *skcd)
 {
         /* fallback to 0 which is the unconfigured default classid */
         return (skcd->is_data & 1) ? skcd->classid : 0;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 8a9643857c4a..16c3027074a2 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -17,6 +17,7 @@
 #include <linux/if.h>
 #include <linux/fs.h>
 #include <linux/aio_abi.h>      /* for aio_context_t */
+#include <linux/uaccess.h>
 #include <linux/unistd.h>
 
 #include <asm/compat.h>
@@ -229,13 +230,13 @@ typedef struct compat_siginfo {
                                 short int _addr_lsb;    /* Valid LSB of the reported address. */
                                 /* used when si_code=SEGV_BNDERR */
                                 struct {
-                                        short _dummy_bnd;
+                                        compat_uptr_t _dummy_bnd;
                                         compat_uptr_t _lower;
                                         compat_uptr_t _upper;
                                 } _addr_bnd;
                                 /* used when si_code=SEGV_PKUERR */
                                 struct {
-                                        short _dummy_pkey;
+                                        compat_uptr_t _dummy_pkey;
                                         u32 _pkey;
                                 } _addr_pkey;
                         };
@@ -550,8 +551,29 @@ asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
 
 extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);
-extern int put_compat_sigset(compat_sigset_t __user *compat,
-                             const sigset_t *set, unsigned int size);
+
+/*
+ * Defined inline such that size can be compile time constant, which avoids
+ * CONFIG_HARDENED_USERCOPY complaining about copies from task_struct
+ */
+static inline int
+put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
+                  unsigned int size)
+{
+        /* size <= sizeof(compat_sigset_t) <= sizeof(sigset_t) */
+#ifdef __BIG_ENDIAN
+        compat_sigset_t v;
+        switch (_NSIG_WORDS) {
+        case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
+        case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
+        case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
+        case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
+        }
+        return copy_to_user(compat, &v, size) ? -EFAULT : 0;
+#else
+        return copy_to_user(compat, set, size) ? -EFAULT : 0;
+#endif
+}
 
 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 79c413985305..c6baf767619e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1317,6 +1317,7 @@ extern int send_sigurg(struct fown_struct *fown);
 #define SB_I_CGROUPWB   0x00000001      /* cgroup-aware writeback enabled */
 #define SB_I_NOEXEC     0x00000002      /* Ignore executables on this fs */
 #define SB_I_NODEV      0x00000004      /* Ignore devices on this fs */
+#define SB_I_MULTIROOT  0x00000008      /* Multiple roots to the dentry tree */
 
 /* sb->s_iflags to limit user namespace mounts */
 #define SB_I_USERNS_VISIBLE             0x00000010 /* fstype already mounted */
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index c5b0a75a7812..fd00170b494f 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -25,6 +25,7 @@ struct ptr_ring *tun_get_tx_ring(struct file *file);
 bool tun_is_xdp_buff(void *ptr);
 void *tun_xdp_to_ptr(void *ptr);
 void *tun_ptr_to_xdp(void *ptr);
+void tun_ptr_free(void *ptr);
 #else
 #include <linux/err.h>
 #include <linux/errno.h>
@@ -50,5 +51,8 @@ static inline void *tun_ptr_to_xdp(void *ptr)
 {
         return NULL;
 }
+static inline void tun_ptr_free(void *ptr)
+{
+}
 #endif /* CONFIG_TUN */
 #endif /* __IF_TUN_H */
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 5e6a2d4dc366..c4a1cff9c768 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -300,30 +300,34 @@ static inline bool vlan_hw_offload_capable(netdev_features_t features,
 }
 
 /**
- * __vlan_insert_tag - regular VLAN tag inserting
+ * __vlan_insert_inner_tag - inner VLAN tag inserting
  * @skb: skbuff to tag
  * @vlan_proto: VLAN encapsulation protocol
  * @vlan_tci: VLAN TCI to insert
+ * @mac_len: MAC header length including outer vlan headers
  *
- * Inserts the VLAN tag into @skb as part of the payload
+ * Inserts the VLAN tag into @skb as part of the payload at offset mac_len
  * Returns error if skb_cow_head failes.
  *
  * Does not change skb->protocol so this function can be used during receive.
  */
-static inline int __vlan_insert_tag(struct sk_buff *skb,
-                                    __be16 vlan_proto, u16 vlan_tci)
+static inline int __vlan_insert_inner_tag(struct sk_buff *skb,
+                                          __be16 vlan_proto, u16 vlan_tci,
+                                          unsigned int mac_len)
 {
         struct vlan_ethhdr *veth;
 
         if (skb_cow_head(skb, VLAN_HLEN) < 0)
                 return -ENOMEM;
 
-        veth = skb_push(skb, VLAN_HLEN);
+        skb_push(skb, VLAN_HLEN);
 
-        /* Move the mac addresses to the beginning of the new header. */
-        memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN);
+        /* Move the mac header sans proto to the beginning of the new header. */
+        memmove(skb->data, skb->data + VLAN_HLEN, mac_len - ETH_TLEN);
         skb->mac_header -= VLAN_HLEN;
 
+        veth = (struct vlan_ethhdr *)(skb->data + mac_len - ETH_HLEN);
+
         /* first, the ethernet type */
         veth->h_vlan_proto = vlan_proto;
 
@@ -334,12 +338,30 @@ static inline int __vlan_insert_tag(struct sk_buff *skb,
 }
 
 /**
- * vlan_insert_tag - regular VLAN tag inserting
+ * __vlan_insert_tag - regular VLAN tag inserting
  * @skb: skbuff to tag
  * @vlan_proto: VLAN encapsulation protocol
  * @vlan_tci: VLAN TCI to insert
  *
  * Inserts the VLAN tag into @skb as part of the payload
+ * Returns error if skb_cow_head failes.
+ *
+ * Does not change skb->protocol so this function can be used during receive.
+ */
+static inline int __vlan_insert_tag(struct sk_buff *skb,
+                                    __be16 vlan_proto, u16 vlan_tci)
+{
+        return __vlan_insert_inner_tag(skb, vlan_proto, vlan_tci, ETH_HLEN);
+}
+
+/**
+ * vlan_insert_inner_tag - inner VLAN tag inserting
+ * @skb: skbuff to tag
+ * @vlan_proto: VLAN encapsulation protocol
+ * @vlan_tci: VLAN TCI to insert
+ * @mac_len: MAC header length including outer vlan headers
+ *
+ * Inserts the VLAN tag into @skb as part of the payload at offset mac_len
  * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
  *
  * Following the skb_unshare() example, in case of error, the calling function
@@ -347,12 +369,14 @@ static inline int __vlan_insert_tag(struct sk_buff *skb,
  *
  * Does not change skb->protocol so this function can be used during receive.
  */
-static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
-                                              __be16 vlan_proto, u16 vlan_tci)
+static inline struct sk_buff *vlan_insert_inner_tag(struct sk_buff *skb,
+                                                    __be16 vlan_proto,
+                                                    u16 vlan_tci,
+                                                    unsigned int mac_len)
 {
         int err;
 
-        err = __vlan_insert_tag(skb, vlan_proto, vlan_tci);
+        err = __vlan_insert_inner_tag(skb, vlan_proto, vlan_tci, mac_len);
         if (err) {
                 dev_kfree_skb_any(skb);
                 return NULL;
@@ -361,6 +385,26 @@ static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
 }
 
 /**
+ * vlan_insert_tag - regular VLAN tag inserting
+ * @skb: skbuff to tag
+ * @vlan_proto: VLAN encapsulation protocol
+ * @vlan_tci: VLAN TCI to insert
+ *
+ * Inserts the VLAN tag into @skb as part of the payload
+ * Returns a VLAN tagged skb. If a new skb is created, @skb is freed.
+ *
+ * Following the skb_unshare() example, in case of error, the calling function
+ * doesn't have to worry about freeing the original skb.
+ *
+ * Does not change skb->protocol so this function can be used during receive.
+ */
+static inline struct sk_buff *vlan_insert_tag(struct sk_buff *skb,
+                                              __be16 vlan_proto, u16 vlan_tci)
+{
+        return vlan_insert_inner_tag(skb, vlan_proto, vlan_tci, ETH_HLEN);
+}
+
+/**
  * vlan_insert_tag_set_proto - regular VLAN tag inserting
  * @skb: skbuff to tag
  * @vlan_proto: VLAN encapsulation protocol
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index c00c4c33e432..b26eccc78fb1 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -503,6 +503,7 @@
 
 #define ICH_HCR_EN                      (1 << 0)
 #define ICH_HCR_UIE                     (1 << 1)
+#define ICH_HCR_NPIE                    (1 << 3)
 #define ICH_HCR_TC                      (1 << 10)
 #define ICH_HCR_TALL0                   (1 << 11)
 #define ICH_HCR_TALL1                   (1 << 12)
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index d3453ee072fc..68d8b1f73682 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -84,6 +84,7 @@
 
 #define GICH_HCR_EN                     (1 << 0)
 #define GICH_HCR_UIE                    (1 << 1)
+#define GICH_HCR_NPIE                   (1 << 3)
 
 #define GICH_LR_VIRTUALID               (0x3ff << 0)
 #define GICH_LR_PHYSID_CPUID_SHIFT      (10)
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 8be5077efb5f..f92ea7783652 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -187,7 +187,6 @@ int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
                             unsigned long  *end_pfn);
 void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
                           unsigned long *out_end_pfn, int *out_nid);
-unsigned long memblock_next_valid_pfn(unsigned long pfn, unsigned long max_pfn);
 
 /**
  * for_each_mem_pfn_range - early memory pfn range iterator
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 4814cad7456e..cded85ab6fe4 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -462,8 +462,8 @@ struct mlx5_core_srq {
         struct mlx5_core_rsc_common     common; /* must be first */
         u32             srqn;
         int             max;
-        int             max_gs;
-        int             max_avail_gather;
+        size_t          max_gs;
+        size_t          max_avail_gather;
         int             wqe_shift;
         void (*event)   (struct mlx5_core_srq *, enum mlx5_event);
 
diff --git a/include/linux/net.h b/include/linux/net.h
index 000d1aada74f..2248a052061d 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -222,6 +222,7 @@ enum {
 int sock_wake_async(struct socket_wq *sk_wq, int how, int band);
 int sock_register(const struct net_proto_family *fam);
 void sock_unregister(int family);
+bool sock_is_registered(int family);
 int __sock_create(struct net *net, int family, int type, int proto,
                   struct socket **res, int kern);
 int sock_create(int family, int type, int proto, struct socket **res);
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 1313b35c3ab7..14529511c4b8 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -285,6 +285,8 @@ unsigned int *xt_alloc_entry_offsets(unsigned int size);
 bool xt_find_jump_offset(const unsigned int *offsets,
                          unsigned int target, unsigned int size);
 
+int xt_check_proc_name(const char *name, unsigned int size);
+
 int xt_check_match(struct xt_mtchk_param *, unsigned int size, u_int8_t proto,
                    bool inv_proto);
 int xt_check_target(struct xt_tgchk_param *, unsigned int size, u_int8_t proto,
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 88865e0ebf4d..091033a6b836 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -13,7 +13,6 @@ struct device_node;
 struct device_node *of_pci_find_child_device(struct device_node *parent,
                                              unsigned int devfn);
 int of_pci_get_devfn(struct device_node *np);
-int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
 int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
 int of_get_pci_domain_nr(struct device_node *node);
 int of_pci_get_max_link_speed(struct device_node *node);
@@ -34,12 +33,6 @@ static inline int of_pci_get_devfn(struct device_node *np)
 }
 
 static inline int
-of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        return 0;
-}
-
-static inline int
 of_pci_parse_bus_range(struct device_node *node, struct resource *res)
 {
         return -EINVAL;
@@ -67,6 +60,16 @@ of_pci_get_max_link_speed(struct device_node *node)
 static inline void of_pci_check_probe_only(void) { }
 #endif
 
+#if IS_ENABLED(CONFIG_OF_IRQ)
+int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
+#else
+static inline int
+of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        return 0;
+}
+#endif
+
 #if defined(CONFIG_OF_ADDRESS)
 int of_pci_get_host_bridge_resources(struct device_node *dev,
                         unsigned char busno, unsigned char bus_max,
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index 864d167a1073..009cdf3d65b6 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -30,10 +30,14 @@
  * calls io_destroy() or the process exits.
  *
  * In the aio code, kill_ioctx() is called when we wish to destroy a kioctx; it
- * calls percpu_ref_kill(), then hlist_del_rcu() and synchronize_rcu() to remove
- * the kioctx from the proccess's list of kioctxs - after that, there can't be
- * any new users of the kioctx (from lookup_ioctx()) and it's then safe to drop
- * the initial ref with percpu_ref_put().
+ * removes the kioctx from the proccess's table of kioctxs and kills percpu_ref.
+ * After that, there can't be any new users of the kioctx (from lookup_ioctx())
+ * and it's then safe to drop the initial ref with percpu_ref_put().
+ *
+ * Note that the free path, free_ioctx(), needs to go through explicit call_rcu()
+ * to synchronize with RCU protected lookup_ioctx().  percpu_ref operations don't
+ * imply RCU grace periods of any kind and if a user wants to combine percpu_ref
+ * with RCU protection, it must be done explicitly.
  *
  * Code that does a two stage shutdown like this often needs some kind of
  * explicit synchronization to ensure the initial refcount can only be dropped
@@ -113,8 +117,10 @@ void percpu_ref_reinit(struct percpu_ref *ref);
  * Must be used to drop the initial ref on a percpu refcount; must be called
  * precisely once before shutdown.
  *
- * Puts @ref in non percpu mode, then does a call_rcu() before gathering up the
- * percpu counters and dropping the initial ref.
+ * Switches @ref into atomic mode before gathering up the percpu counters
+ * and dropping the initial ref.
+ *
+ * There are no implied RCU grace periods between kill and release.
  */
 static inline void percpu_ref_kill(struct percpu_ref *ref)
 {
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 5a9b1753fdc5..f0b5870a6d40 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -984,6 +984,10 @@ static inline int genphy_no_soft_reset(struct phy_device *phydev)
 {
         return 0;
 }
+int genphy_read_mmd_unsupported(struct phy_device *phdev, int devad,
+                                u16 regnum);
+int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,
+                                 u16 regnum, u16 val);
 
 /* Clause 45 PHY */
 int genphy_c45_restart_aneg(struct phy_device *phydev);
@@ -1020,7 +1024,6 @@ int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
 int phy_drivers_register(struct phy_driver *new_driver, int n,
                          struct module *owner);
 void phy_state_machine(struct work_struct *work);
-void phy_change(struct phy_device *phydev);
 void phy_change_work(struct work_struct *work);
 void phy_mac_interrupt(struct phy_device *phydev);
 void phy_start_machine(struct phy_device *phydev);
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h
index c9df2527e0cd..668a21f04b09 100644
--- a/include/linux/rhashtable.h
+++ b/include/linux/rhashtable.h
@@ -766,8 +766,10 @@ slow_path:
                 if (!key ||
                     (params.obj_cmpfn ?
                      params.obj_cmpfn(&arg, rht_obj(ht, head)) :
-                     rhashtable_compare(&arg, rht_obj(ht, head))))
+                     rhashtable_compare(&arg, rht_obj(ht, head)))) {
+                        pprev = &head->next;
                         continue;
+                }
 
                 data = rht_obj(ht, head);
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d8340e6e8814..47082f54ec1f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -4040,6 +4040,12 @@ static inline bool skb_is_gso_v6(const struct sk_buff *skb)
         return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
 }
 
+/* Note: Should be called only if skb_is_gso(skb) is true */
+static inline bool skb_is_gso_sctp(const struct sk_buff *skb)
+{
+        return skb_shinfo(skb)->gso_type & SKB_GSO_SCTP;
+}
+
 static inline void skb_gso_reset(struct sk_buff *skb)
 {
         skb_shinfo(skb)->gso_size = 0;
@@ -4047,6 +4053,22 @@ static inline void skb_gso_reset(struct sk_buff *skb)
         skb_shinfo(skb)->gso_type = 0;
 }
 
+static inline void skb_increase_gso_size(struct skb_shared_info *shinfo,
+                                         u16 increment)
+{
+        if (WARN_ON_ONCE(shinfo->gso_size == GSO_BY_FRAGS))
+                return;
+        shinfo->gso_size += increment;
+}
+
+static inline void skb_decrease_gso_size(struct skb_shared_info *shinfo,
+                                         u16 decrement)
+{
+        if (WARN_ON_ONCE(shinfo->gso_size == GSO_BY_FRAGS))
+                return;
+        shinfo->gso_size -= decrement;
+}
+
 void __skb_warn_lro_forwarding(const struct sk_buff *skb);
 
 static inline bool skb_warn_if_lro(const struct sk_buff *skb)
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 0a6c71e0ad01..47f8af22f216 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -364,6 +364,7 @@ struct tty_file_private {
 #define TTY_PTY_LOCK            16      /* pty private */
 #define TTY_NO_WRITE_SPLIT      17      /* Preserve write boundaries to driver */
 #define TTY_HUPPED              18      /* Post driver->hangup() */
+#define TTY_HUPPING             19      /* Hangup in progress */
 #define TTY_LDISC_HALTED        22      /* Line discipline is halted */
 
 /* Values for tty->flow_change */
diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h
index 5bdbd9f49395..07ee0f84a46c 100644
--- a/include/linux/u64_stats_sync.h
+++ b/include/linux/u64_stats_sync.h
@@ -90,6 +90,28 @@ static inline void u64_stats_update_end(struct u64_stats_sync *syncp)
 #endif
 }
 
+static inline unsigned long
+u64_stats_update_begin_irqsave(struct u64_stats_sync *syncp)
+{
+        unsigned long flags = 0;
+
+#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
+        local_irq_save(flags);
+        write_seqcount_begin(&syncp->seq);
+#endif
+        return flags;
+}
+
+static inline void
+u64_stats_update_end_irqrestore(struct u64_stats_sync *syncp,
+                                unsigned long flags)
+{
+#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
+        write_seqcount_end(&syncp->seq);
+        local_irq_restore(flags);
+#endif
+}
+
 static inline void u64_stats_update_begin_raw(struct u64_stats_sync *syncp)
 {
 #if BITS_PER_LONG==32 && defined(CONFIG_SMP)
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index f1fcec2fd5f8..b7a99ce56bc9 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -63,4 +63,7 @@
  */
 #define USB_QUIRK_DISCONNECT_SUSPEND            BIT(12)
 
+/* Device needs a pause after every control message. */
+#define USB_QUIRK_DELAY_CTRL_MSG                BIT(13)
+
 #endif /* __LINUX_USB_QUIRKS_H */
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index bc0cda180c8b..0c3301421c57 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -456,7 +456,6 @@ extern int schedule_on_each_cpu(work_func_t func);
 int execute_in_process_context(work_func_t fn, struct execute_work *);
 
 extern bool flush_work(struct work_struct *work);
-extern bool cancel_work(struct work_struct *work);
 extern bool cancel_work_sync(struct work_struct *work);
 
 extern bool flush_delayed_work(struct delayed_work *dwork);