This is a note to let you know that I've just added the patch titled
mac80211: schedule the actual switch of the station before CSA count 0
to the 3.17-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mac80211-schedule-the-actual-switch-of-the-station-before-csa-count-0.patch
and it can be found in the queue-3.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ff1e417c7c239b7abfe70aa90460a77eaafc7f83 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@xxxxxxxxx>
Date: Tue, 28 Oct 2014 13:33:05 +0200
Subject: mac80211: schedule the actual switch of the station before CSA count 0
From: Luciano Coelho <luciano.coelho@xxxxxxxxx>
commit ff1e417c7c239b7abfe70aa90460a77eaafc7f83 upstream.
Due to the time it takes to process the beacon that started the CSA
process, we may be late for the switch if we try to reach exactly
beacon 0. To avoid that, use count - 1 when calculating the switch time.
Reported-by: Jouni Malinen <j@xxxxx>
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/mlme.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1154,7 +1154,8 @@ ieee80211_sta_process_chanswitch(struct
ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work);
else
mod_timer(&ifmgd->chswitch_timer,
- TU_TO_EXP_TIME(csa_ie.count * cbss->beacon_interval));
+ TU_TO_EXP_TIME((csa_ie.count - 1) *
+ cbss->beacon_interval));
}
static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
Patches currently in stable-queue which might be from luciano.coelho@xxxxxxxxx are
queue-3.17/mac80211-schedule-the-actual-switch-of-the-station-before-csa-count-0.patch
queue-3.17/mac80211-use-secondary-channel-offset-ie-also-beacons-during-csa.patch
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