[PATCH 1/4] mt76: mt76x02: ommit beacon slot clearing

[Markus Theil <markus.theil@tu-ilmenau.de>]

mt76 hw does not send beacons from beacon slots, if the corresponding
bitmask is set accordingly. Therefore we can ommit clearing the beacon
memory. Clearing uses many usb calls, if usb drivers are used. These
calls unnecessarily slow down the beacon tasklet. Thanks to Stanislaw
Gruzska for pointing this out.

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
---
 drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c b/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c
index 4209209ac940..54fe449f01c9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c
@@ -56,10 +56,6 @@ __mt76x02_mac_set_beacon(struct mt76x02_dev *dev, u8 bcn_idx,
 		ret = mt76x02_write_beacon(dev, beacon_addr, skb);
 		if (!ret)
 			dev->beacon_data_mask |= BIT(bcn_idx);
-	} else {
-		dev->beacon_data_mask &= ~BIT(bcn_idx);
-		for (i = 0; i < beacon_len; i += 4)
-			mt76_wr(dev, beacon_addr + i, 0);
 	}
 
 	mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xff00 | ~dev->beacon_data_mask);
@@ -241,17 +237,11 @@ EXPORT_SYMBOL_GPL(mt76x02_enqueue_buffered_bc);
 
 void mt76x02_init_beacon_config(struct mt76x02_dev *dev)
 {
-	int i;
-
 	mt76_clear(dev, MT_BEACON_TIME_CFG, (MT_BEACON_TIME_CFG_TIMER_EN |
 					     MT_BEACON_TIME_CFG_TBTT_EN |
 					     MT_BEACON_TIME_CFG_BEACON_TX));
 	mt76_set(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_SYNC_MODE);
 	mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xffff);
-
-	for (i = 0; i < 8; i++)
-		mt76x02_mac_set_beacon(dev, i, NULL);
-
 	mt76x02_set_beacon_offsets(dev);
 }
 EXPORT_SYMBOL_GPL(mt76x02_init_beacon_config);
-- 
2.24.0