linux-kernel - [PATCH] wifi: mac80211: Recalc offload when monitor stop

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Date: Sat, 18 May 2024 18:07:33 +0200
From: Remi Pommarel <repk@...plefau.lt>
To: Johannes Berg <johannes@...solutions.net>
Cc: linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Remi Pommarel <repk@...plefau.lt>
Subject: [PATCH] wifi: mac80211: Recalc offload when monitor stop

When a monitor interface is started, ieee80211_recalc_offload() is
called and 802.11 encapsulation offloading support get disabled so
monitor interface could get native wifi frames directly. But when
this interface is stopped there is no need to keep the 802.11
encpasulation offloading off.

This call ieee80211_recalc_offload() when monitor interface is stopped
so 802.11 encapsulation offloading gets re-activated if possible.

Fixes: 6aea26ce5a4c ("mac80211: rework tx encapsulation offload API")
Signed-off-by: Remi Pommarel <repk@...plefau.lt>
---
 net/mac80211/iface.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index dc42902e2693..0c54554bf761 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -686,6 +686,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 			ieee80211_del_virtual_monitor(local);

 		ieee80211_recalc_idle(local);
+		ieee80211_recalc_offload(local);

 		if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))
 			break;
-- 
2.40.0