tree 9cdc685d8c4fcedc140f1a5ae739b03e37e8bf43
parent cf0277e714a0db302a8f80e1b85fd61c32cf00b3
author Gertjan van Wingerde <gwingerde@gmail.com> 1262169390 +0100
committer John W. Linville <linville@tuxdriver.com> 1262726862 -0500

rt2x00: Properly request tx headroom for alignment operations.

Current rt2x00 drivers may result in a "ieee80211_tx_status: headroom too
small" error message when a frame needs to be properly aligned before
transmitting it.
This is because the space needed to ensure proper alignment isn't
requested from mac80211.
Fix this by adding sufficient amount of alignment space to the amount
of headroom requested for TX frames.

Reported-by: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <ivdoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>