Merge branch 'upstream-fixes'

4 files changed, 10 insertions, 5 deletions

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 57d290d89e..8ee4d01674 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -847,10 +847,11 @@ int ip_append_data(struct sock *sk,
         if (((length > mtu) && (sk->sk_protocol == IPPROTO_UDP)) &&
                         (rt->u.dst.dev->features & NETIF_F_UFO)) {
 
-                if(ip_ufo_append_data(sk, getfrag, from, length, hh_len,
-                               fragheaderlen, transhdrlen, mtu, flags))
+                err = ip_ufo_append_data(sk, getfrag, from, length, hh_len,
+                                         fragheaderlen, transhdrlen, mtu,
+                                         flags);
+                if (err)
                         goto error;
-
                 return 0;
         }
 
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index dd1048be8a..7d7ab94a7a 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -771,7 +771,7 @@ static int get_entries(const struct arpt_get_entries *entries,
         struct arpt_table *t;
 
         t = xt_find_table_lock(NF_ARP, entries->name);
-        if (t || !IS_ERR(t)) {
+        if (t && !IS_ERR(t)) {
                 struct xt_table_info *private = t->private;
                 duprintf("t->private->number = %u\n",
                          private->number);
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index 63cf7e5408..e0e9d1383c 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -125,7 +125,7 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt,
                 /* Update AIMD parameters */
                 if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) {
                         while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
-                               ca->ai < HSTCP_AIMD_MAX)
+                               ca->ai < HSTCP_AIMD_MAX - 1)
                                 ca->ai++;
                 } else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) {
                         while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index a7623ead39..9f498a6c88 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1036,6 +1036,10 @@ static int tcp_tso_should_defer(struct sock *sk, struct tcp_sock *tp, struct sk_
 
         limit = min(send_win, cong_win);
 
+        /* If a full-sized TSO skb can be sent, do it. */
+        if (limit >= 65536)
+                return 0;
+
         if (sysctl_tcp_tso_win_divisor) {
                 u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);