From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 18 Nov 2009 16:15:06 +0000 (+0100)
Subject: mac80211: fix addba timer (again...)
X-Git-Tag: v2.6.32~30^2~4^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ade00824607fcfa8842572012d4393b40a74a94;p=pandora-kernel.git

mac80211: fix addba timer (again...)

commit 2171abc58644e09dbba546d91366b12743115396
  Author: Johannes Berg <johannes@sipsolutions.net>
  Date:   Thu Oct 29 08:34:00 2009 +0100

      mac80211: fix addba timer

left a problem in there, even if the timer was
never started it could be deleted and then added.

Linus pointed out that del_timer_sync() isn't
actually needed if we make the timer able to
deal with no longer being needed when it gets
queued _while_ we're in the locked section that
also deletes it. For that the timer function only
needs to check the HT_ADDBA_RECEIVED_MSK bit as
well as the HT_ADDBA_REQUESTED_MSK bit, only if
the former is clear should it do anything.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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