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authorVlad Yasevich <vyasevic@redhat.com>2014-03-27 17:26:18 -0400
committerDavid S. Miller <davem@davemloft.net>2014-03-28 17:10:36 -0400
commit53d6471cef17262d3ad1c7ce8982a234244f68ec (patch)
treeb7adb468b9fb7b500a96222742a3752545ff47b6 /include
parent898602a049504dea256e696ee3152dc0b788a393 (diff)
downloadlinux-linaro-stable-53d6471cef17262d3ad1c7ce8982a234244f68ec.tar.gz
net: Account for all vlan headers in skb_mac_gso_segment
skb_network_protocol() already accounts for multiple vlan headers that may be present in the skb. However, skb_mac_gso_segment() doesn't know anything about it and assumes that skb->mac_len is set correctly to skip all mac headers. That may not always be the case. If we are simply forwarding the packet (via bridge or macvtap), all vlan headers may not be accounted for. A simple solution is to allow skb_network_protocol to return the vlan depth it has calculated. This way skb_mac_gso_segment will correctly skip all mac headers. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/netdevice.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e8eeebd49a98..daafd9561cbc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3014,7 +3014,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, netdev_features_t features)
{
return __skb_gso_segment(skb, features, true);
}
-__be16 skb_network_protocol(struct sk_buff *skb);
+__be16 skb_network_protocol(struct sk_buff *skb, int *depth);
static inline bool can_checksum_protocol(netdev_features_t features,
__be16 protocol)