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wifi: mt76: mt7921: don't disconnect when CSA to DFS chan

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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 <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Janusz Dziedzic
2025-08-04 18:19:26 +02:00
committed by Felix Fietkau
parent 449a1aca9f
commit 1de707e73f
1 changed files with 1 additions and 4 deletions
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mt7921/main.c
+1 -4
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@@ -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;