From: Michael Grzeschik <m.grzeschik@pengutronix.de>
Date: Thu, 17 Sep 2015 13:18:34 +0000 (+0200)
Subject: ARCNET: fix hard_header_len limit
X-Git-Tag: omap-for-v4.3/fixes-rc5~84^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=980137a20317055451a73547cf07be4ddea039ee;p=pandora-kernel.git

ARCNET: fix hard_header_len limit

For arcnet the bare minimum header only contains the 4 bytes to
specify source, dest and offset (1, 1 and 2 bytes respectively).
The corresponding struct is struct arc_hardware.

The struct archdr contains additionally a union of possible soft
headers. When doing $insertusecasehere packets might well
include short (or even no?) soft headers.

For this reason only use arc_hardware instead of archdr to
determine the hard_header_len for an arcnet device.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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