linux-kernel - [PATCH v2 1/9] wifi: wfx: fix power

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Date:   Wed, 27 Sep 2023 18:32:49 +0200
From:   Jérôme Pouiller 
        <jerome.pouiller@...abs.com>
To:     Kalle Valo <kvalo@...nel.org>
Cc:     linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jérôme Pouiller 
        <jerome.pouiller@...abs.com>
Subject: [PATCH v2 1/9] wifi: wfx: fix power_save setting when AP is stopped

The WF200 allow to start two network interfaces (one AP, one station) on
two different channels. Since magic does not exist, it only works if the
station interface enables power save.

Thus, the driver detects this case and enforce power save as necessary.

This patch fixes the case where the AP interface is stopped and it is no
more necessary to enforce power saving on the station interface.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@...abs.com>
---
 drivers/net/wireless/silabs/wfx/sta.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/silabs/wfx/sta.c b/drivers/net/wireless/silabs/wfx/sta.c
index 626dfb4b7a55d..9c0a11c277e97 100644
--- a/drivers/net/wireless/silabs/wfx/sta.c
+++ b/drivers/net/wireless/silabs/wfx/sta.c
@@ -402,7 +402,12 @@ void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		 struct ieee80211_bss_conf *link_conf)
 {
 	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
+	struct wfx_dev *wdev = wvif->wdev;
 
+	wvif =  NULL;
+	while ((wvif = wvif_iterate(wdev, wvif)) != NULL)
+		wfx_update_pm(wvif);
+	wvif = (struct wfx_vif *)vif->drv_priv;
 	wfx_reset(wvif);
 }
 
-- 
2.39.2