wifi: rtw89: prohibit enter IPS during HW scan

Mac80211 core may ask driver to change to idle mode during HW scan,
then H2C command for HW scan will send failed since chip is in idle
mode. Therefore, We check the SCANNING flag before entering IPS to
prevent this behavior.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230415034900.15679-2-pkshih@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw89/mac80211.c b/drivers/net/wireless/realtek/rtw89/mac80211.c
index b059aa8..b5cbfc1 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw89/mac80211.c
@@ -105,7 +105,8 @@ static int rtw89_ops_config(struct ieee80211_hw *hw, u32 changed)
        }
 
        if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
-           (hw->conf.flags & IEEE80211_CONF_IDLE))
+           (hw->conf.flags & IEEE80211_CONF_IDLE) &&
+           !rtwdev->scanning)
                rtw89_enter_ips(rtwdev);
 
        mutex_unlock(&rtwdev->mutex);