linux-kernel - [152/244] wireless: Reset beacon_found while updating regulatory

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Date:	Wed, 28 Sep 2011 15:01:56 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Rajkumar Manoharan <rmanohar@....qualcomm.com>,
	"Luis R. Rodriguez" <mcgrof@....qualcomm.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [152/244] wireless: Reset beacon_found while updating regulatory

3.0-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Rajkumar Manoharan <rmanohar@....qualcomm.com>

commit aa3d7eef398dd4f29045e9889b817d5161afe03e upstream.

During the association, the regulatory is updated by country IE
that reaps the previously found beacons. The impact is that
after a STA disconnects *or* when for any reason a regulatory
domain change happens the beacon hint flag is not cleared
therefore preventing future beacon hints to be learned.
This is important as a regulatory domain change or a restore
of regulatory settings would set back the passive scan and no-ibss
flags on the channel. This is the right place to do this given that
it covers any regulatory domain change.

Reviewed-by: Luis R. Rodriguez <mcgrof@...il.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@....qualcomm.com>
Acked-by: Luis R. Rodriguez <mcgrof@....qualcomm.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 net/wireless/reg.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -852,6 +852,7 @@ static void handle_channel(struct wiphy
 		return;
 	}

+	chan->beacon_found = false;
 	chan->flags = flags | bw_flags | map_regdom_flags(reg_rule->flags);
 	chan->max_antenna_gain = min(chan->orig_mag,
 		(int) MBI_TO_DBI(power_rule->max_antenna_gain));

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