6.12-stable review patch. If anyone has any objections, please let me know.
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From: Chih-Kang Chang gary.chang@realtek.com
[ Upstream commit 3db8563bac6c34018cbb96b14549a95c368b0304 ]
If scan happen during start_ap, the register which control TX might be turned off during scan. Additionally, if set_channel occurs during scan will backup this register and set to firmware after set_channel done. When scan complete, firmware will also set TX by this register, causing TX to be disabled and beacon can't be TX. Therefore, in assign/unassign_vif call scan abort before set_channel to avoid scan racing with set_channel.
Signed-off-by: Chih-Kang Chang gary.chang@realtek.com Signed-off-by: Ping-Ke Shih pkshih@realtek.com Link: https://patch.msgid.link/20250610130034.14692-13-pkshih@realtek.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/realtek/rtw89/chan.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw89/chan.c b/drivers/net/wireless/realtek/rtw89/chan.c index 4df4e04c3e67..559aa60e3df0 100644 --- a/drivers/net/wireless/realtek/rtw89/chan.c +++ b/drivers/net/wireless/realtek/rtw89/chan.c @@ -2682,6 +2682,9 @@ int rtw89_chanctx_ops_assign_vif(struct rtw89_dev *rtwdev, rtwvif_link->chanctx_assigned = true; cfg->ref_count++;
+ if (rtwdev->scanning) + rtw89_hw_scan_abort(rtwdev, rtwdev->scan_info.scanning_vif); + if (list_empty(&rtwvif->mgnt_entry)) list_add_tail(&rtwvif->mgnt_entry, &mgnt->active_list);
@@ -2715,6 +2718,9 @@ void rtw89_chanctx_ops_unassign_vif(struct rtw89_dev *rtwdev, rtwvif_link->chanctx_assigned = false; cfg->ref_count--;
+ if (rtwdev->scanning) + rtw89_hw_scan_abort(rtwdev, rtwdev->scan_info.scanning_vif); + if (!rtw89_vif_is_active_role(rtwvif)) list_del_init(&rtwvif->mgnt_entry);