Commit b381fa32 authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
Browse files

ath9k: optimize the hardware hang check 



Since it's only called when beacons are stuck, move it to the SWBA handler
tasklet, to avoid doing redundant checks on every single interrupt.

Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7b27ba4e

drivers/net/wireless/ath/ath9k/beacon.c

+3 −0
Original line number Diff line number Diff line
@@ -369,6 +369,9 @@ void ath_beacon_tasklet(unsigned long data) 
	if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0) {

		sc->beacon.bmisscnt++;



		if (!ath9k_hw_check_alive(ah))

			ieee80211_queue_work(sc->hw, &sc->hw_check_work);



		if (sc->beacon.bmisscnt < BSTUCK_THRESH * sc->nbcnvifs) {

			ath_dbg(common, BSTUCK,

				"missed %u consecutive beacons\n",

drivers/net/wireless/ath/ath9k/main.c

+0 −11
Original line number Diff line number Diff line
@@ -692,17 +692,6 @@ void ath9k_tasklet(unsigned long data) 
		goto out;

	}



	/*

	 * Only run the baseband hang check if beacons stop working in AP or

	 * IBSS mode, because it has a high false positive rate. For station

	 * mode it should not be necessary, since the upper layers will detect

	 * this through a beacon miss automatically and the following channel

	 * change will trigger a hardware reset anyway

	 */

	if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0 &&

	    !ath9k_hw_check_alive(ah))

		ieee80211_queue_work(sc->hw, &sc->hw_check_work);



	if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) {

		/*

		 * TSF sync does not look correct; remain awake to sync with

CRA Git | Maintained and supported by SUSTech CRA and CCSE