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authorTom Herbert <therbert@google.com>2014-11-29 09:59:45 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-12-16 09:37:10 -0800
commit5f4cfd32b21e509325111e72b27aff2e273f11f8 (patch)
treed64c27cab5ec7c327f5fcd257a0ca1e0ea5da85f /net
parent3e66aad18b516bd6c2b317cd8f01537ae59aa957 (diff)
gre: Set inner mac header in gro complete
[ Upstream commit 6fb2a756739aa507c1fd5b8126f0bfc2f070dc46 ] Set the inner mac header to point to the GRE payload when doing GRO. This is needed if we proceed to send the packet through GRE GSO which now uses the inner mac header instead of inner network header to determine the length of encapsulation headers. Fixes: 14051f0452a2 ("gre: Use inner mac length when computing tunnel length") Reported-by: Wolfgang Walter <linux@stwm.de> Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/gre_offload.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index dd73bea2a65f..657d80c0931a 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -279,6 +279,9 @@ static int gre_gro_complete(struct sk_buff *skb, int nhoff)
err = ptype->callbacks.gro_complete(skb, nhoff + grehlen);
rcu_read_unlock();
+
+ skb_set_inner_mac_header(skb, nhoff + grehlen);
+
return err;
}