diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-05-19 21:56:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-31 13:20:39 -0700 |
| commit | ff9cfa6b917a903fe24dba928dca61d0c9339864 (patch) | |
| tree | 7cc8606ffac6006dea5eb748fe6a45b45e7c3357 /net/ipv6/tcpv6_offload.c | |
| parent | 1ff9c00a7a14af5c848d00eb264cb4e6c9cb30a6 (diff) | |
ipv6: gro: fix CHECKSUM_COMPLETE support
[ Upstream commit 4de462ab63e23953fd05da511aeb460ae10cc726 ]
When GRE support was added in linux-3.14, CHECKSUM_COMPLETE handling
broke on GRE+IPv6 because we did not update/use the appropriate csum :
GRO layer is supposed to use/update NAPI_GRO_CB(skb)->csum instead of
skb->csum
Tested using a GRE tunnel and IPv6 traffic. GRO aggregation now happens
at the first level (ethernet device) instead of being done in gre
tunnel. Native IPv6+TCP is still properly aggregated.
Fixes: bf5a755f5e918 ("net-gre-gro: Add GRE support to the GRO stack")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6/tcpv6_offload.c')
| -rw-r--r-- | net/ipv6/tcpv6_offload.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c index 0d78132ff18a..8517d3cd1aed 100644 --- a/net/ipv6/tcpv6_offload.c +++ b/net/ipv6/tcpv6_offload.c @@ -42,7 +42,7 @@ static struct sk_buff **tcp6_gro_receive(struct sk_buff **head, if (NAPI_GRO_CB(skb)->flush) goto skip_csum; - wsum = skb->csum; + wsum = NAPI_GRO_CB(skb)->csum; switch (skb->ip_summed) { case CHECKSUM_NONE: |