From: Florian Fainelli <f.fainelli@gmail.com>
Date: Mon, 28 Apr 2014 18:14:27 +0000 (-0700)
Subject: net: dsa: add ds_to_priv
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~36^2~295
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fa857ed041537ee6cbc7ee4ab0204a1231cfcb9;p=pandora-kernel.git

net: dsa: add ds_to_priv

DSA drivers have a trick which consists in allocating "priv_size" more
bytes to account for the DSA driver private context. Add a helper
function to access that private context instead of open-coding it in
drivers with (void *)(ds + 1).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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