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authorToshiaki Makita <makita.toshiaki@lab.ntt.co.jp>2015-01-29 20:37:07 +0900
committerDavid S. Miller <davem@davemloft.net>2015-01-30 18:03:47 -0800
commitd4bcef3fbe887ff93b58da4fcf6df1eee416e8fa (patch)
treecf4ad1600694c60733d7696727d7112acbc6e85c /drivers
parentcfbf654efc6d78dc9812e030673b86f235bf677d (diff)
downloadlinux-linaro-stable-d4bcef3fbe887ff93b58da4fcf6df1eee416e8fa.tar.gz
net: Fix vlan_get_protocol for stacked vlan
vlan_get_protocol() could not get network protocol if a skb has a 802.1ad vlan tag or multiple vlans, which caused incorrect checksum calculation in several drivers. Fix vlan_get_protocol() to retrieve network protocol instead of incorrect vlan protocol. As the logic is the same as skb_network_protocol(), create a common helper function __vlan_get_protocol() and call it from existing functions. Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
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