When the timer is already running, there is no need to reset the counter,
because the drift will remain the same.

Signed-off-by: Felix Fietkau <[email protected]>
---
 drivers/net/wireless/mediatek/mt76/mt76x02_mac.c  | 3 +++
 drivers/net/wireless/mediatek/mt76/mt76x02_util.c | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c 
b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
index be2979f34f31..82b178fa83bb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
@@ -1126,6 +1126,9 @@ void mt76x02_mac_set_beacon_enable(struct mt76x02_dev 
*dev,
        else if (val)
                skb = ieee80211_beacon_get(mt76_hw(dev), vif);
 
+       if (!dev->beacon_mask)
+               dev->tbtt_count = 0;
+
        __mt76x02_mac_set_beacon_enable(dev, vif_idx, val, skb);
 
        if (mt76_is_mmio(dev))
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c 
b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
index 2e899d30e00d..a48c261b0c63 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -713,7 +713,6 @@ void mt76x02_bss_info_changed(struct ieee80211_hw *hw,
                               MT_BEACON_TIME_CFG_INTVAL,
                               info->beacon_int << 4);
                dev->beacon_int = info->beacon_int;
-               dev->tbtt_count = 0;
        }
 
        if (changed & BSS_CHANGED_BEACON_ENABLED)
-- 
2.17.0

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