From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 27 May 2009 19:26:37 +0000 (+0000)
Subject: net: dont update dev->trans_start in 10GB drivers
X-Git-Tag: v2.6.31-rc1~330^2~228
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28679751a924c11f7135641f26e99249385de5b4;p=pandora-kernel.git

net: dont update dev->trans_start in 10GB drivers

Followup of commits 9d21493b4beb8f918ba248032fefa393074a5e2b
and 08baf561083bc27a953aa087dd8a664bb2b88e8e
(net: tx scalability works : trans_start)
(net: txq_trans_update() helper)

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Multi queue drivers can
avoid one cache miss (on dev->trans_start) in their start_xmit()
handler.

Exceptions are NETIF_F_LLTX drivers (vxge & tehuti)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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