From: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Date: Wed, 22 Jan 2014 00:29:37 +0000 (+0900)
Subject: bridge: Remove unnecessary vlan_put_tag in br_handle_vlan
X-Git-Tag: v3.14-rc1~94^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdf4351bbc62f3b24151cf19ca6e531b68d8c340;p=pandora-kernel.git

bridge: Remove unnecessary vlan_put_tag in br_handle_vlan

br_handle_vlan() pushes HW accelerated vlan tag into skbuff when outgoing
port is the bridge device.
This is unnecessary because __netif_receive_skb_core() can handle skbs
with HW accelerated vlan tag. In current implementation,
__netif_receive_skb_core() needs to extract the vlan tag embedded in skb
data. This could cause low network performance especially when receiving
frames at a high frame rate on the bridge device.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Acked-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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