openvswitch: __nf_ct_l{3,4}proto_find() always return a valid pointer

[linux-block.git] / net / ipv4 / syncookies.c

diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 2d5589b61e9faa0fc53c7ddfa198e593a02ddea5..4c04f09338e3410dd75a085674c0fcf355f43164 100644 (file)
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -19,8 +19,6 @@
 #include <net/tcp.h>
 #include <net/route.h>
 
-extern int sysctl_tcp_syncookies;
-
 static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly;
 
 #define COOKIEBITS 24  /* Upper bits store count */
@@ -306,7 +304,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
        __u8 rcv_wscale;
        struct flowi4 fl4;
 
-       if (!sysctl_tcp_syncookies || !th->ack || th->rst)
+       if (!sock_net(sk)->ipv4.sysctl_tcp_syncookies || !th->ack || th->rst)
                goto out;
 
        if (tcp_synq_no_recent_overflow(sk))