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net: vlan: Add parse protocol header ops
authorEran Ben Elisha <eranbe@nvidia.com>
Tue, 12 Jan 2021 19:07:12 +0000 (21:07 +0200)
committerJakub Kicinski <kuba@kernel.org>
Fri, 15 Jan 2021 02:24:53 +0000 (18:24 -0800)
commit71854255820d1a479654bd2e98483129c588c118
treeaf915e48b68c266120974361f010052fa4f8bfc5
parente3a7670737ecd7eb55b5c5e1900678e2a2e51ef9
net: vlan: Add parse protocol header ops

Add parse protocol header ops for vlan device. Before this patch, vlan
tagged packet transmitted by af_packet had skb->protocol unset. Some
kernel methods (like __skb_flow_dissect()) rely on this missing information
for its packet processing.

Signed-off-by: Eran Ben Elisha <eranbe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/8021q/vlan_dev.c