From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sat, 25 Feb 2012 00:51:05 +0000 (+0000)
Subject: mlx4_en: dont change mac_header on xmit
X-Git-Tag: v3.4-rc1~177^2~176
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=622121719934f60378279eb440d3cec2fc3176d2;p=pandora-kernel.git

mlx4_en: dont change mac_header on xmit

A driver xmit function is not allowed to change skb without special
care.

mlx4_en_xmit() should not call skb_reset_mac_header() and instead should
use skb->data to access ethernet header.

This removes a dumb test : if (ethh && ethh->h_dest)

Also remove this slow mlx4_en_mac_to_u64() call, we can use
get_unaligned() to get faster code.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
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