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authorHerbert Xu <herbert@gondor.apana.org.au>2009-04-27 05:44:29 -0700
committerDavid S. Miller <davem@davemloft.net>2009-04-27 05:44:29 -0700
commitedbd9e30306067c3a45c035eb95a6f49daaa2337 (patch)
tree00e8ce4bbb0b517cea71ff14165b2b1d944d22f3 /include
parent56ed4351c2604c221a82276f51e5dfd467921bf3 (diff)
downloadlinux-edbd9e30306067c3a45c035eb95a6f49daaa2337.tar.bz2
gro: Fix handling of headers that extend over the tail
The skb_gro_* code fails to handle the case where a header starts in the linear area but ends in the frags area. Since the goal of skb_gro_* is to optimise the case of completely non-linear packets, we can simply bail out if we have anything in the linear area. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/netdevice.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 31167451d08d..c9ef41916071 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1137,7 +1137,7 @@ static inline void skb_gro_reset_offset(struct sk_buff *skb)
static inline void *skb_gro_mac_header(struct sk_buff *skb)
{
- return skb_mac_header(skb) < skb->data ? skb_mac_header(skb) :
+ return skb_headlen(skb) ? skb_mac_header(skb) :
page_address(skb_shinfo(skb)->frags[0].page) +
skb_shinfo(skb)->frags[0].page_offset;
}