gro: Only reset frag0 when skb can be pulled
commit2cdac5f07180d5536b7f695685dd2bc49bc79e23
authorHerbert Xu <herbert@gondor.apana.org.au>
Wed, 27 Jul 2011 13:16:28 +0000 (27 06:16 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 3 Aug 2011 19:42:49 +0000 (3 12:42 -0700)
treea371cfe1661ee0d7da4f41cb9ecbc3e40e15302c
parent2cfb25e6c60e5c5e0b93cf5ea26ba85200cca532
gro: Only reset frag0 when skb can be pulled

commit 17dd759c67f21e34f2156abcf415e1f60605a188 upstream.

Currently skb_gro_header_slow unconditionally resets frag0 and
frag0_len.  However, when we can't pull on the skb this leaves
the GRO fields in an inconsistent state.

This patch fixes this by only resetting those fields after the
pskb_may_pull test.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
include/linux/netdevice.h