From: David S. Miller <davem@davemloft.net>
Date: Thu, 28 Aug 2014 00:05:53 +0000 (-0700)
Subject: f_ncm: Don't use netdev_start_xmit().
X-Git-Tag: fixes-against-v3.18-rc2~81^2~212
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c2c0e8b2b88cac379b2a2167b448000dedd2596a;p=pandora-kernel.git

f_ncm: Don't use netdev_start_xmit().

Unfortunately, the USB gadget layer has this weird things where NULL
skbs are passed into ops->ndo_start_xmit() in order to trigger the
dev->wrap() calls to build packets.

This is completely outside of the allowable range of sane arguments
for the ndo_start_xmit method.  All invocations of ndo_start_xmit()
should be with non-NULL SKB arguments.

Put back the direct call, but with a comment explaining how this
is not acceptable in the long term.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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