From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 18 Dec 2010 18:30:49 +0000 (+0100)
Subject: mac80211: skip unnecessary pskb_expand_head calls
X-Git-Tag: v2.6.38-rc1~476^2~104^2~4^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cd06a344db752f513437138953af191cbe9a691;p=pandora-kernel.git

mac80211: skip unnecessary pskb_expand_head calls

If the skb is not cloned and we don't need any extra headroom, there
is no point in reallocating the skb head.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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