ath9k: make beacon timer initialization more reliable

When starting the AP beacon timer, it assumes that the TSF has recently
been cleared. Set the SC_OP_TSF_RESET flag to ensure that this is always
the case.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 22e8e2580116..6d7088b02611 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -517,6 +517,7 @@ static void ath_beacon_config_ap(struct ath_softc *sc,
         /* Set the computed AP beacon timers */
 
         ath9k_hw_disable_interrupts(ah);
+        sc->sc_flags |= SC_OP_TSF_RESET;
         ath9k_beacon_init(sc, nexttbtt, intval);
         sc->beacon.bmisscnt = 0;
         ath9k_hw_set_interrupts(ah, ah->imask);