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

Conflicts:
	drivers/net/usb/asix_common.c
	drivers/net/usb/sr9800.c
	drivers/net/usb/usbnet.c
	include/linux/usb/usbnet.h
	net/ipv4/tcp_ipv4.c
	net/ipv6/tcp_ipv6.c

The TCP conflicts were overlapping changes.  In 'net' we added a
READ_ONCE() to the socket cached RX route read, whilst in 'net-next'
Eric Dumazet touched the surrounding code dealing with how mini
sockets are handled.

With USB, it's a case of the same bug fix first going into net-next
and then I cherry picked it back into net.

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

1 files changed, 12 insertions, 1 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 7cdad8401434..f73a97f6e68e 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1348,6 +1348,15 @@ static void tcp_v6_fill_cb(struct sk_buff *skb, const struct ipv6hdr *hdr,
         TCP_SKB_CB(skb)->sacked = 0;
 }
 
+static void tcp_v6_restore_cb(struct sk_buff *skb)
+{
+        /* We need to move header back to the beginning if xfrm6_policy_check()
+         * and tcp_v6_fill_cb() are going to be called again.
+         */
+        memmove(IP6CB(skb), &TCP_SKB_CB(skb)->header.h6,
+                sizeof(struct inet6_skb_parm));
+}
+
 static int tcp_v6_rcv(struct sk_buff *skb)
 {
         const struct tcphdr *th;
@@ -1480,6 +1489,7 @@ do_time_wait:
                         inet_twsk_deschedule(tw, &tcp_death_row);
                         inet_twsk_put(tw);
                         sk = sk2;
+                        tcp_v6_restore_cb(skb);
                         goto process;
                 }
                 /* Fall through to ACK */
@@ -1488,6 +1498,7 @@ do_time_wait:
                 tcp_v6_timewait_ack(sk, skb);
                 break;
         case TCP_TW_RST:
+                tcp_v6_restore_cb(skb);
                 goto no_tcp_socket;
         case TCP_TW_SUCCESS:
                 ;
@@ -1522,7 +1533,7 @@ static void tcp_v6_early_demux(struct sk_buff *skb)
                 skb->sk = sk;
                 skb->destructor = sock_edemux;
                 if (sk_fullsock(sk)) {
-                        struct dst_entry *dst = sk->sk_rx_dst;
+                        struct dst_entry *dst = READ_ONCE(sk->sk_rx_dst);
 
                         if (dst)
                                 dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);