Commit babc305e authored Sep 21, 2015 by Sara Sharon Committed by Johannes Berg Sep 22, 2015

mac80211: reset CQM history upon reconfiguration



The current behavior of notifying CQM events is inconsistent:
Upon first configuration there is a cqm event with the current
status according to threshold configured, regardless of signal
stability.
When there is reconfiguration no event is sent unless there is
a significant change to the signal level according to the new
configuration.

Since the current reconfiguration behavior might cause missing
CQM events in case the current signal did not change but is on
the other side of the new threshold, fix that by resetting the
stored signal level upon reconfiguration.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 2df1b131

net/mac80211/cfg.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -2474,6 +2474,7 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,

		bss_conf->cqm_rssi_thold = rssi_thold;
		bss_conf->cqm_rssi_hyst = rssi_hyst;
		sdata->u.mgd.last_cqm_event_signal = 0;

		/* tell the driver upon association, unless already associated */
		if (sdata->u.mgd.associated &&

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