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Subject[54/74] gro: reset skb_iif on reuse
2.6.32-longterm review patch.  If anyone has any objections, please let us know.

From: Andy Gospodarek <>

commit 6d152e23ad1a7a5b40fef1f42e017d66e6115159 upstream.

Like Herbert's change from a few days ago:

66c46d741e2e60f0e8b625b80edb0ab820c46d7a gro: Reset dev pointer on reuse

this may not be necessary at this point, but we should still clean up
the skb->skb_iif. If not we may end up with an invalid valid for
skb->skb_iif when the skb is reused and the check is done in

Signed-off-by: Andy Gospodarek <>
Signed-off-by: David S. Miller <>
Signed-off-by: Brandon Philips <>
Signed-off-by: Greg Kroah-Hartman <>

net/core/dev.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2615,6 +2615,7 @@ void napi_reuse_skb(struct napi_struct *
__skb_pull(skb, skb_headlen(skb));
skb_reserve(skb, NET_IP_ALIGN - skb_headroom(skb));
skb->dev = napi->dev;
+ skb->iif = 0;

napi->skb = skb;

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