Commit de2ee84d authored Dec 24, 2011 by Mohammed Shafi Shajakhan Committed by John W. Linville Jan 04, 2012

mac80211: fix scan state machine



when we run high bandwidth UDP traffic and we trigger a scan, the scan
state machine seems to be looping in SUSPEND->RESUME->DECISION->SUSPEND
and SET_CHANNEL seems to be never called as 'tx_empty' is never true
while running UDP traffic. fix this by settting SET_CHANNEL state when
we get into RESUME state.

Cc: Leela Kella <leela@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

parent 841f1d92

net/mac80211/scan.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -625,7 +625,7 @@ static void ieee80211_scan_state_resume(struct ieee80211_local *local,
	local->leave_oper_channel_time = jiffies;		local->leave_oper_channel_time = jiffies;

	/* advance to the next channel to be scanned */		/* advance to the next channel to be scanned */
	local->next_scan_state = SCAN_DECISION;		local->next_scan_state = SCAN_SET_CHANNEL;
	}		}

	void ieee80211_scan_work(struct work_struct *work)		void ieee80211_scan_work(struct work_struct *work)