[PATCH 6.18 235/752] wifi: rtw89: wow: add reason codes for disassociation in WoWLAN mode

Sasha Levin
2026-02-28T17:51:26Z

From: Chin-Yen Lee <timlee@realtek.com>

[ Upstream commit 2fd8f953f25173d14981d8736b6f5bfcd757e51b ]

Some APs disconnect clients by sending a Disassociation frame
rather than a Deauthentication frame. Since these frames use
different reason codes in WoWLAN mode, this commit adds support
for handling Disassociation to prevent missed disconnection events.

Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20260110022019.2254969-3-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/realtek/rtw89/wow.c | 4 ++++
drivers/net/wireless/realtek/rtw89/wow.h | 1 +
2 files changed, 5 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c
index 5faa51ad896a2..f34cd863d1009 100644
--- a/drivers/net/wireless/realtek/rtw89/wow.c
+++ b/drivers/net/wireless/realtek/rtw89/wow.c
@@ -809,6 +809,10 @@ static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev)

reason = rtw89_read8(rtwdev, wow_reason_reg);
switch (reason) {
+ case RTW89_WOW_RSN_RX_DISASSOC:
+ wakeup.disconnect = true;
+ rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx disassoc\n");
+ break;
case RTW89_WOW_RSN_RX_DEAUTH:
wakeup.disconnect = true;
rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n");
diff --git a/drivers/net/wireless/realtek/rtw89/wow.h b/drivers/net/wireless/realtek/rtw89/wow.h
index d2ba6cebc2a6b..71e07f482174f 100644
--- a/drivers/net/wireless/realtek/rtw89/wow.h
+++ b/drivers/net/wireless/realtek/rtw89/wow.h
@@ -33,6 +33,7 @@
enum rtw89_wake_reason {
RTW89_WOW_RSN_RX_PTK_REKEY = 0x1,
RTW89_WOW_RSN_RX_GTK_REKEY = 0x2,
+ RTW89_WOW_RSN_RX_DISASSOC = 0x4,
RTW89_WOW_RSN_RX_DEAUTH = 0x8,
RTW89_WOW_RSN_DISCONNECT = 0x10,
RTW89_WOW_RSN_RX_MAGIC_PKT = 0x21,
--
2.51.0