tcp: Correction to RFC number in comment

Challenge ACK is described in RFC 5961, fix typo.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index df8b3c12a173416a89030192edaabe196584d989..4e4617e90417b3174ffcbe1ec69b92bb3dff4a33 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5029,7 +5029,7 @@ static bool tcp_validate_incoming(struct sock *sk, struct sk_buff *skb,
        /* step 3: check security and precedence [ignored] */
 
        /* step 4: Check for a SYN
-        * RFC 5691 4.2 : Send a challenge ack
+        * RFC 5961 4.2 : Send a challenge ack
         */
        if (th->syn) {
 syn_challenge: