From cb63a06c403aee2f1ef25585fae0267fbdcf265b Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sun, 5 May 2019 02:53:32 +0200
Subject: [PATCH] mt76: mt7603: stop mac80211 queues before setting the channel

Suspend data transmission during channel switch

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 mt7603/main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mt7603/main.c b/mt7603/main.c
index 0a0334dc..172687a1 100644
--- a/mt7603/main.c
+++ b/mt7603/main.c
@@ -207,8 +207,11 @@ mt7603_config(struct ieee80211_hw *hw, u32 changed)
 	int ret = 0;
 
 	if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
-		       IEEE80211_CONF_CHANGE_POWER))
+		       IEEE80211_CONF_CHANGE_POWER)) {
+		ieee80211_stop_queues(hw);
 		ret = mt7603_set_channel(dev, &hw->conf.chandef);
+		ieee80211_wake_queues(hw);
+	}
 
 	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
 		mutex_lock(&dev->mt76.mutex);