From 1de707e73fc7e6599bf734c70e7f810d0d4e71ab Mon Sep 17 00:00:00 2001 From: Janusz Dziedzic Date: Wed, 16 Jul 2025 18:54:01 +0200 Subject: [PATCH] wifi: mt76: mt7921: don't disconnect when CSA to DFS chan When station mode, don't disconnect when we get channel switch from AP to DFS channel. Most APs send CSA request after pass background CAC. In other case we should disconnect after detect beacon miss. Without patch when we get CSA to DFS channel get: "kernel: wlo1: preparing for channel switch failed, disconnecting" Signed-off-by: Janusz Dziedzic Link: https://patch.msgid.link/20250716165443.28354-1-janusz.dziedzic@gmail.com Signed-off-by: Felix Fietkau --- mt7921/main.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/mt7921/main.c b/mt7921/main.c index 523325f7..55ed8d5f 100644 --- a/mt7921/main.c +++ b/mt7921/main.c @@ -1460,11 +1460,8 @@ static int mt7921_pre_channel_switch(struct ieee80211_hw *hw, if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc) return -EOPNOTSUPP; - /* Avoid beacon loss due to the CAC(Channel Availability Check) time - * of the AP. - */ if (!cfg80211_chandef_usable(hw->wiphy, &chsw->chandef, - IEEE80211_CHAN_RADAR)) + IEEE80211_CHAN_DISABLED)) return -EOPNOTSUPP; return 0;