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authorEric Dumazet <edumazet@google.com>2016-01-15 04:56:56 -0800
committerDavid S. Miller <davem@davemloft.net>2016-01-15 15:07:23 -0500
commit34ae6a1aa0540f0f781dd265366036355fdc8930 (patch)
tree11df908434ac0da470b34a08fd254df1429c4e65 /net
parent113c74d83eef870e43a0d9279044e9d5435f0d07 (diff)
downloadblackbird-obmc-linux-34ae6a1aa0540f0f781dd265366036355fdc8930.tar.gz
blackbird-obmc-linux-34ae6a1aa0540f0f781dd265366036355fdc8930.zip
ipv6: update skb->csum when CE mark is propagated
When a tunnel decapsulates the outer header, it has to comply with RFC 6080 and eventually propagate CE mark into inner header. It turns out IP6_ECN_set_ce() does not correctly update skb->csum for CHECKSUM_COMPLETE packets, triggering infamous "hw csum failure" messages and stack traces. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/xfrm6_mode_tunnel.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index f7fbdbabe50e..372855eeaf42 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -23,7 +23,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
struct ipv6hdr *inner_iph = ipipv6_hdr(skb);
if (INET_ECN_is_ce(XFRM_MODE_SKB_CB(skb)->tos))
- IP6_ECN_set_ce(inner_iph);
+ IP6_ECN_set_ce(skb, inner_iph);
}
/* Add encapsulation header.
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