From: Gertjan van Wingerde <gwingerde@gmail.com>
Date: Fri, 4 Dec 2009 22:46:54 +0000 (+0100)
Subject: mac80211: Add define for TX headroom reserved by mac80211 itself.
X-Git-Tag: v2.6.33-rc3~44^2~31^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d24deb2580823ab0b8425790c6f5d18e2ff749d8;p=pandora-kernel.git

mac80211: Add define for TX headroom reserved by mac80211 itself.

Add a definition of the amount of TX headroom reserved by mac80211 itself
for its own purposes. Also add BUILD_BUG_ON to validate the value.
This define can then be used by drivers to request additional TX headroom
in the most efficient manner.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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