From: Eric Dumazet <edumazet@google.com>
Date: Tue, 18 Sep 2012 20:44:49 +0000 (+0000)
Subject: net: more accurate network taps in transmit path
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~47^2~145
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b40863c667c16b7a73d4f034a8eab67029b5b15a;p=pandora-kernel.git

net: more accurate network taps in transmit path

dev_queue_xmit_nit() should be called right before ndo_start_xmit()
calls or we might give wrong packet contents to taps users :

Packet checksum can be changed, or packet can be linearized or
segmented, and segments partially sent for the later case.

Also a memory allocation can fail and packet never really hit the
driver entry point.

Reported-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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