tree e19fa93ccf306ea54508492a141721a1e4cc3a30
parent b2ec153a637409bd87952d44409905b7d98418b8
author Gertjan van Wingerde <gwingerde@gmail.com> 1259966814 +0100
committer John W. Linville <linville@tuxdriver.com> 1260818551 -0500

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>