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authorHerbert Xu <herbert@gondor.apana.org.au>2006-07-11 13:50:09 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-07-12 13:58:55 -0700
commitda952315c9c625bd513c6162613fd3fd01d91aae (patch)
treea57f60a953d0596beb3d230663db34a9b7a02b1a
parent8a6ce0c083f5736e90dabe6d8ce077e7dd0fa35f (diff)
[IPCOMP]: Fix truesize after decompression
The truesize check has uncovered the fact that we forgot to update truesize after pskb_expand_head. Unfortunately pskb_expand_head can't update it for us because it's used in all sorts of different contexts, some of which would not allow truesize to be updated by itself. So the solution for now is to simply update it in IPComp. This patch also changes skb_put to __skb_put since we've just expanded tailroom by exactly that amount so we know it's there (but gcc does not). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/ipcomp.c3
-rw-r--r--net/ipv6/ipcomp6.c3
2 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 8e037484753..8a8b5cf2f7f 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -70,7 +70,8 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb)
if (err)
goto out;
- skb_put(skb, dlen - plen);
+ skb->truesize += dlen - plen;
+ __skb_put(skb, dlen - plen);
memcpy(skb->data, scratch, dlen);
out:
put_cpu();
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index b285b035708..7e4d1c17bfb 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -109,7 +109,8 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
goto out_put_cpu;
}
- skb_put(skb, dlen - plen);
+ skb->truesize += dlen - plen;
+ __skb_put(skb, dlen - plen);
memcpy(skb->data, scratch, dlen);
err = ipch->nexthdr;