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authorSujith <Sujith.Manoharan@atheros.com>2009-02-27 09:44:00 +0530
committerJohn W. Linville <linville@tuxdriver.com>2009-03-05 14:39:32 -0500
commite31ae0508315ebf5d8b1b8a1fca8550737fb3996 (patch)
treefe4c453d40df43ac2544ab9ec107403ccd9bbcca /net/mac80211
parentdb5b4f7ae3901fdc48c5b988fc2a5e0cb4ec1870 (diff)
downloadlinux-e31ae0508315ebf5d8b1b8a1fca8550737fb3996.tar.bz2
mac80211: Notify the driver only when the beacon interval changes
Currently, the driver is unconditionally notified of beacon interval. This is a problem in AP mode, because the driver has to know that the beacon interval has actualy changed to recalculate TBTT and reset the HW TSF. Fix this to make mac80211 notify the driver only when the beacon interval has been reconfigured to a new value. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/cfg.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c43129efc3bf..58693e52d458 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -451,7 +451,8 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
* This is a kludge. beacon interval should really be part
* of the beacon information.
*/
- if (params->interval) {
+ if (params->interval && (sdata->local->hw.conf.beacon_int !=
+ params->interval)) {
sdata->local->hw.conf.beacon_int = params->interval;
err = ieee80211_hw_config(sdata->local,
IEEE80211_CONF_CHANGE_BEACON_INTERVAL);