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authorJohn W. Linville <linville@tuxdriver.com>2010-10-01 11:12:36 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-10-01 11:12:36 -0400
commit41f4a6f71fe33faa7971c173c263fb431fe987fe (patch)
treefdc3e603162e3ad63f6ae4160f68eb803bb78d58 /drivers/net/wireless/ath/ath5k/base.c
parent94d57c4cfaa43e29ca5fa5ff874048cfc67276f5 (diff)
parent1728943d83e9fd919e454332fe344944123b3c3a (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/base.c')
-rw-r--r--drivers/net/wireless/ath/ath5k/base.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 95072db0ec2..94cc3354f3a 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1191,6 +1191,15 @@ ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb,
*/
if (hw_tu >= sc->nexttbtt)
ath5k_beacon_update_timers(sc, bc_tstamp);
+
+ /* Check if the beacon timers are still correct, because a TSF
+ * update might have created a window between them - for a
+ * longer description see the comment of this function: */
+ if (!ath5k_hw_check_beacon_timers(sc->ah, sc->bintval)) {
+ ath5k_beacon_update_timers(sc, bc_tstamp);
+ ATH5K_DBG_UNLIMIT(sc, ATH5K_DEBUG_BEACON,
+ "fixed beacon timers after beacon receive\n");
+ }
}
}
@@ -1877,8 +1886,11 @@ ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf)
hw_tsf = ath5k_hw_get_tsf64(ah);
hw_tu = TSF_TO_TU(hw_tsf);
-#define FUDGE 3
- /* we use FUDGE to make sure the next TBTT is ahead of the current TU */
+#define FUDGE AR5K_TUNE_SW_BEACON_RESP + 3
+ /* We use FUDGE to make sure the next TBTT is ahead of the current TU.
+ * Since we later substract AR5K_TUNE_SW_BEACON_RESP (10) in the timer
+ * configuration we need to make sure it is bigger than that. */
+
if (bc_tsf == -1) {
/*
* no beacons received, called internally.