From 98da81a426a76c351f3c2854d5bc31f17bba3194 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 4 Jun 2015 08:01:12 -0700 Subject: [PATCH] tcp: remove redundant checks II For same reasons than in commit 12e25e1041d0 ("tcp: remove redundant checks"), we can remove redundant checks done for timewait sockets. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp_ipv4.c | 4 ---- net/ipv6/tcp_ipv6.c | 4 ---- 2 files changed, 8 deletions(-) diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 3130c42240c8..d7d4c2b79cf2 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1671,10 +1671,6 @@ do_time_wait: goto discard_it; } - if (skb->len < (th->doff << 2)) { - inet_twsk_put(inet_twsk(sk)); - goto bad_packet; - } if (tcp_checksum_complete(skb)) { inet_twsk_put(inet_twsk(sk)); goto csum_error; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index b72e1ffc6bb4..45a7176ed460 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1467,10 +1467,6 @@ do_time_wait: tcp_v6_fill_cb(skb, hdr, th); - if (skb->len < (th->doff<<2)) { - inet_twsk_put(inet_twsk(sk)); - goto bad_packet; - } if (tcp_checksum_complete(skb)) { inet_twsk_put(inet_twsk(sk)); goto csum_error; -- 2.20.1