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

Conflicts:
	drivers/net/usb/qmi_wwan.c
	include/net/dst.h

Trivial merge conflicts, both were overlapping changes.

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

5 files changed, 31 insertions, 13 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 7d8357bb2ba6..8fbac7de1e1b 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -772,15 +772,20 @@ static inline int ip_ufo_append_data(struct sock *sk,
                 /* initialize protocol header pointer */
                 skb->transport_header = skb->network_header + fragheaderlen;
 
-                skb->ip_summed = CHECKSUM_PARTIAL;
                 skb->csum = 0;
 
-                /* specify the length of each IP datagram fragment */
-                skb_shinfo(skb)->gso_size = maxfraglen - fragheaderlen;
-                skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+
                 __skb_queue_tail(queue, skb);
+        } else if (skb_is_gso(skb)) {
+                goto append;
         }
 
+        skb->ip_summed = CHECKSUM_PARTIAL;
+        /* specify the length of each IP datagram fragment */
+        skb_shinfo(skb)->gso_size = maxfraglen - fragheaderlen;
+        skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+
+append:
         return skb_append_datato_frags(sk, skb, getfrag, from,
                                        (length - transhdrlen));
 }
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 91f69bc883fe..5d9c845d288a 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -61,8 +61,17 @@ static int vti_rcv(struct sk_buff *skb)
                                   iph->saddr, iph->daddr, 0);
         if (tunnel != NULL) {
                 struct pcpu_tstats *tstats;
+                u32 oldmark = skb->mark;
+                int ret;
 
-                if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
+
+                /* temporarily mark the skb with the tunnel o_key, to
+                 * only match policies with this mark.
+                 */
+                skb->mark = be32_to_cpu(tunnel->parms.o_key);
+                ret = xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb);
+                skb->mark = oldmark;
+                if (!ret)
                         return -1;
 
                 tstats = this_cpu_ptr(tunnel->dev->tstats);
@@ -71,7 +80,6 @@ static int vti_rcv(struct sk_buff *skb)
                 tstats->rx_bytes += skb->len;
                 u64_stats_update_end(&tstats->syncp);
 
-                skb->mark = 0;
                 secpath_reset(skb);
                 skb->dev = tunnel->dev;
                 return 1;
@@ -103,7 +111,7 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 
         memset(&fl4, 0, sizeof(fl4));
         flowi4_init_output(&fl4, tunnel->parms.link,
-                           be32_to_cpu(tunnel->parms.i_key), RT_TOS(tos),
+                           be32_to_cpu(tunnel->parms.o_key), RT_TOS(tos),
                            RT_SCOPE_UNIVERSE,
                            IPPROTO_IPIP, 0,
                            dst, tiph->saddr, 0, 0);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index eb651a069a6c..b935397c703c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3338,7 +3338,7 @@ static void tcp_process_tlp_ack(struct sock *sk, u32 ack, int flag)
                         tcp_init_cwnd_reduction(sk, true);
                         tcp_set_ca_state(sk, TCP_CA_CWR);
                         tcp_end_cwnd_reduction(sk);
-                        tcp_set_ca_state(sk, TCP_CA_Open);
+                        tcp_try_keep_open(sk);
                         NET_INC_STATS_BH(sock_net(sk),
                                          LINUX_MIB_TCPLOSSPROBERECOVERY);
                 }
@@ -5751,6 +5751,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                 } else
                         tcp_init_metrics(sk);
 
+                tcp_update_pacing_rate(sk);
+
                 /* Prevent spurious tcp_cwnd_restart() on first data packet */
                 tp->lsndtime = tcp_time_stamp;
 
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index ce7c4d9d9195..672854664ff5 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -986,8 +986,10 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb)
 static void tcp_set_skb_tso_segs(const struct sock *sk, struct sk_buff *skb,
                                  unsigned int mss_now)
 {
-        if (skb->len <= mss_now || !sk_can_gso(sk) ||
-            skb->ip_summed == CHECKSUM_NONE) {
+        /* Make sure we own this skb before messing gso_size/gso_segs */
+        WARN_ON_ONCE(skb_cloned(skb));
+
+        if (skb->len <= mss_now || skb->ip_summed == CHECKSUM_NONE) {
                 /* Avoid the costly divide in the normal
                  * non-TSO case.
                  */
@@ -1067,9 +1069,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len,
         if (nsize < 0)
                 nsize = 0;
 
-        if (skb_cloned(skb) &&
-            skb_is_nonlinear(skb) &&
-            pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
+        if (skb_unclone(skb, GFP_ATOMIC))
                 return -ENOMEM;
 
         /* Get a new skb... force flag on. */
@@ -2344,6 +2344,8 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
                 int oldpcount = tcp_skb_pcount(skb);
 
                 if (unlikely(oldpcount > 1)) {
+                        if (skb_unclone(skb, GFP_ATOMIC))
+                                return -ENOMEM;
                         tcp_init_tso_segs(sk, skb, cur_mss);
                         tcp_adjust_pcount(sk, skb, oldpcount - tcp_skb_pcount(skb));
                 }
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 9a459be24af7..ccde54248c8c 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -107,6 +107,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 
         memset(fl4, 0, sizeof(struct flowi4));
         fl4->flowi4_mark = skb->mark;
+        fl4->flowi4_oif = skb_dst(skb)->dev->ifindex;
 
         if (!ip_is_fragment(iph)) {
                 switch (iph->protocol) {