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authorDaniel Borkmann <daniel@iogearbox.net>2016-04-16 03:27:58 +0300
committerDavid S. Miller <davem@davemloft.net>2016-04-16 06:20:11 +0300
commit9241e2df4fbc648a92ea0752918e05c26255649e (patch)
treea4140463f6cdb8ac8471238b1dc59130258f559d /net/rds
parentcfe255600154f0072d4a8695590dbd194dfd1aeb (diff)
downloadlinux-9241e2df4fbc648a92ea0752918e05c26255649e.tar.xz
vlan: pull on __vlan_insert_tag error path and fix csum correction
When __vlan_insert_tag() fails from skb_vlan_push() path due to the skb_cow_head(), we need to undo the __skb_push() in the error path as well that was done earlier to move skb->data pointer to mac header. Moreover, I noticed that when in the non-error path the __skb_pull() is done and the original offset to mac header was non-zero, we fixup from a wrong skb->data offset in the checksum complete processing. So the skb_postpush_rcsum() really needs to be done before __skb_pull() where skb->data still points to the mac header start and thus operates under the same conditions as in __vlan_insert_tag(). Fixes: 93515d53b133 ("net: move vlan pop/push functions into common code") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds')
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