Merge branches 'clockevents/4.4-fixes' and 'clockevents/4.5-fixes' of http://git.linaro.org/people/daniel.lezcano/linux into timers/urgent

Pull in fixes from Daniel Lezcano:

 - Fix the vt8500 timer leading to a system lock up when dealing with too
   small delta (Roman Volkov)

 - Select the CLKSRC_MMIO when the fsl_ftm_timer is enabled with COMPILE_TEST
   (Daniel Lezcano)

 - Prevent to compile timers using the 'iomem' API when the architecture has
   not HAS_IOMEM set (Richard Weinberger)

8 files changed, 44 insertions, 31 deletions

diff --git a/net/core/datagram.c b/net/core/datagram.c
index 617088aee21d..d62af69ad844 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -785,7 +785,7 @@ unsigned int datagram_poll(struct file *file, struct socket *sock,
         if (sock_writeable(sk))
                 mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
         else
-                set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+                sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
 
         return mask;
 }
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index e6af42da28d9..f18ae91b652e 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2215,7 +2215,7 @@ static int pneigh_fill_info(struct sk_buff *skb, struct pneigh_entry *pn,
         ndm->ndm_pad2    = 0;
         ndm->ndm_flags   = pn->flags | NTF_PROXY;
         ndm->ndm_type    = RTN_UNICAST;
-        ndm->ndm_ifindex = pn->dev->ifindex;
+        ndm->ndm_ifindex = pn->dev ? pn->dev->ifindex : 0;
         ndm->ndm_state   = NUD_NONE;
 
         if (nla_put(skb, NDA_DST, tbl->key_len, pn->key))
@@ -2333,7 +2333,7 @@ static int pneigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
                 if (h > s_h)
                         s_idx = 0;
                 for (n = tbl->phash_buckets[h], idx = 0; n; n = n->next) {
-                        if (dev_net(n->dev) != net)
+                        if (pneigh_net(n) != net)
                                 continue;
                         if (idx < s_idx)
                                 goto next;
diff --git a/net/core/netclassid_cgroup.c b/net/core/netclassid_cgroup.c
index 6441f47b1a8f..d9ee8d08a3a6 100644
--- a/net/core/netclassid_cgroup.c
+++ b/net/core/netclassid_cgroup.c
@@ -56,7 +56,7 @@ static void cgrp_css_free(struct cgroup_subsys_state *css)
         kfree(css_cls_state(css));
 }
 
-static int update_classid(const void *v, struct file *file, unsigned n)
+static int update_classid_sock(const void *v, struct file *file, unsigned n)
 {
         int err;
         struct socket *sock = sock_from_file(file, &err);
@@ -67,18 +67,27 @@ static int update_classid(const void *v, struct file *file, unsigned n)
         return 0;
 }
 
-static void cgrp_attach(struct cgroup_subsys_state *css,
-                        struct cgroup_taskset *tset)
+static void update_classid(struct cgroup_subsys_state *css, void *v)
 {
-        struct cgroup_cls_state *cs = css_cls_state(css);
-        void *v = (void *)(unsigned long)cs->classid;
+        struct css_task_iter it;
         struct task_struct *p;
 
-        cgroup_taskset_for_each(p, tset) {
+        css_task_iter_start(css, &it);
+        while ((p = css_task_iter_next(&it))) {
                 task_lock(p);
-                iterate_fd(p->files, 0, update_classid, v);
+                iterate_fd(p->files, 0, update_classid_sock, v);
                 task_unlock(p);
         }
+        css_task_iter_end(&it);
+}
+
+static void cgrp_attach(struct cgroup_taskset *tset)
+{
+        struct cgroup_subsys_state *css;
+
+        cgroup_taskset_first(tset, &css);
+        update_classid(css,
+                       (void *)(unsigned long)css_cls_state(css)->classid);
 }
 
 static u64 read_classid(struct cgroup_subsys_state *css, struct cftype *cft)
@@ -89,8 +98,11 @@ static u64 read_classid(struct cgroup_subsys_state *css, struct cftype *cft)
 static int write_classid(struct cgroup_subsys_state *css, struct cftype *cft,
                          u64 value)
 {
-        css_cls_state(css)->classid = (u32) value;
+        struct cgroup_cls_state *cs = css_cls_state(css);
+
+        cs->classid = (u32)value;
 
+        update_classid(css, (void *)(unsigned long)cs->classid);
         return 0;
 }
 
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index cbd0a199bf52..40fd09fe06ae 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -218,13 +218,14 @@ static int update_netprio(const void *v, struct file *file, unsigned n)
         return 0;
 }
 
-static void net_prio_attach(struct cgroup_subsys_state *css,
-                            struct cgroup_taskset *tset)
+static void net_prio_attach(struct cgroup_taskset *tset)
 {
         struct task_struct *p;
-        void *v = (void *)(unsigned long)css->cgroup->id;
+        struct cgroup_subsys_state *css;
+
+        cgroup_taskset_for_each(p, css, tset) {
+                void *v = (void *)(unsigned long)css->cgroup->id;
 
-        cgroup_taskset_for_each(p, tset) {
                 task_lock(p);
                 iterate_fd(p->files, 0, update_netprio, v);
                 task_unlock(p);
diff --git a/net/core/scm.c b/net/core/scm.c
index 3b6899b7d810..8a1741b14302 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -305,6 +305,8 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
                         err = put_user(cmlen, &cm->cmsg_len);
                 if (!err) {
                         cmlen = CMSG_SPACE(i*sizeof(int));
+                        if (msg->msg_controllen < cmlen)
+                                cmlen = msg->msg_controllen;
                         msg->msg_control += cmlen;
                         msg->msg_controllen -= cmlen;
                 }
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 152b9c70e252..b2df375ec9c2 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3643,7 +3643,8 @@ static void __skb_complete_tx_timestamp(struct sk_buff *skb,
         serr->ee.ee_info = tstype;
         if (sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID) {
                 serr->ee.ee_data = skb_shinfo(skb)->tskey;
-                if (sk->sk_protocol == IPPROTO_TCP)
+                if (sk->sk_protocol == IPPROTO_TCP &&
+                    sk->sk_type == SOCK_STREAM)
                         serr->ee.ee_data -= sk->sk_tskey;
         }
 
@@ -4268,7 +4269,7 @@ static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
                 return NULL;
         }
 
-        memmove(skb->data - ETH_HLEN, skb->data - skb->mac_len,
+        memmove(skb->data - ETH_HLEN, skb->data - skb->mac_len - VLAN_HLEN,
                 2 * ETH_ALEN);
         skb->mac_header += VLAN_HLEN;
         return skb;
diff --git a/net/core/sock.c b/net/core/sock.c
index 1e4dd54bfb5a..0d91f7dca751 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -433,8 +433,6 @@ static bool sock_needs_netstamp(const struct sock *sk)
         }
 }
 
-#define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
-
 static void sock_disable_timestamp(struct sock *sk, unsigned long flags)
 {
         if (sk->sk_flags & flags) {
@@ -874,7 +872,8 @@ set_rcvbuf:
 
                 if (val & SOF_TIMESTAMPING_OPT_ID &&
                     !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) {
-                        if (sk->sk_protocol == IPPROTO_TCP) {
+                        if (sk->sk_protocol == IPPROTO_TCP &&
+                            sk->sk_type == SOCK_STREAM) {
                                 if (sk->sk_state != TCP_ESTABLISHED) {
                                         ret = -EINVAL;
                                         break;
@@ -1530,7 +1529,6 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
                 skb_queue_head_init(&newsk->sk_receive_queue);
                 skb_queue_head_init(&newsk->sk_write_queue);
 
-                spin_lock_init(&newsk->sk_dst_lock);
                 rwlock_init(&newsk->sk_callback_lock);
                 lockdep_set_class_and_name(&newsk->sk_callback_lock,
                                 af_callback_keys + newsk->sk_family,
@@ -1553,7 +1551,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
                          */
                         is_charged = sk_filter_charge(newsk, filter);
 
-                if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk))) {
+                if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) {
                         /* It is still raw copy of parent, so invalidate
                          * destructor and make plain sk_free() */
                         newsk->sk_destruct = NULL;
@@ -1607,7 +1605,7 @@ void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
 {
         u32 max_segs = 1;
 
-        __sk_dst_set(sk, dst);
+        sk_dst_set(sk, dst);
         sk->sk_route_caps = dst->dev->features;
         if (sk->sk_route_caps & NETIF_F_GSO)
                 sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE;
@@ -1815,7 +1813,7 @@ static long sock_wait_for_wmem(struct sock *sk, long timeo)
 {
         DEFINE_WAIT(wait);
 
-        clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+        sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
         for (;;) {
                 if (!timeo)
                         break;
@@ -1861,7 +1859,7 @@ struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len,
                 if (sk_wmem_alloc_get(sk) < sk->sk_sndbuf)
                         break;
 
-                set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+                sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
                 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
                 err = -EAGAIN;
                 if (!timeo)
@@ -2048,9 +2046,9 @@ int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb)
         DEFINE_WAIT(wait);
 
         prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
-        set_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
+        sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk);
         rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb);
-        clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
+        sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk);
         finish_wait(sk_sleep(sk), &wait);
         return rc;
 }
@@ -2388,7 +2386,6 @@ void sock_init_data(struct socket *sock, struct sock *sk)
         } else
                 sk->sk_wq       =       NULL;
 
-        spin_lock_init(&sk->sk_dst_lock);
         rwlock_init(&sk->sk_callback_lock);
         lockdep_set_class_and_name(&sk->sk_callback_lock,
                         af_callback_keys + sk->sk_family,
diff --git a/net/core/stream.c b/net/core/stream.c
index d70f77a0c889..b96f7a79e544 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -39,7 +39,7 @@ void sk_stream_write_space(struct sock *sk)
                         wake_up_interruptible_poll(&wq->wait, POLLOUT |
                                                 POLLWRNORM | POLLWRBAND);
                 if (wq && wq->fasync_list && !(sk->sk_shutdown & SEND_SHUTDOWN))
-                        sock_wake_async(sock, SOCK_WAKE_SPACE, POLL_OUT);
+                        sock_wake_async(wq, SOCK_WAKE_SPACE, POLL_OUT);
                 rcu_read_unlock();
         }
 }
@@ -126,7 +126,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
                 current_timeo = vm_wait = (prandom_u32() % (HZ / 5)) + 2;
 
         while (1) {
-                set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+                sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk);
 
                 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
 
@@ -139,7 +139,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
                 }
                 if (signal_pending(current))
                         goto do_interrupted;
-                clear_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+                sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
                 if (sk_stream_memory_free(sk) && !vm_wait)
                         break;