5.15-stable review patch. If anyone has any objections, please let me know.
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From: Hans de Goede hdegoede@redhat.com
[ Upstream commit bfcfe6d335a967f8ea0c1980960e6f0205b5de6e ]
The wlan_ctrl_by_user detection was introduced by commit a50bd128f28c ("asus-wmi: record wlan status while controlled by userapp").
Quoting from that commit's commit message:
""" When you call WMIMethod(DSTS, 0x00010011) to get WLAN status, it may return
(1) 0x00050001 (On) (2) 0x00050000 (Off) (3) 0x00030001 (On) (4) 0x00030000 (Off) (5) 0x00000002 (Unknown)
(1), (2) means that the model has hardware GPIO for WLAN, you can call WMIMethod(DEVS, 0x00010011, 1 or 0) to turn WLAN on/off. (3), (4) means that the model doesn’t have hardware GPIO, you need to use API or driver library to turn WLAN on/off, and call WMIMethod(DEVS, 0x00010012, 1 or 0) to set WLAN LED status. After you set WLAN LED status, you can see the WLAN status is changed with WMIMethod(DSTS, 0x00010011). Because the status is recorded lastly (ex: Windows), you can use it for synchronization. (5) means that the model doesn’t have WLAN device.
WLAN is the ONLY special case with upper rule. """
The wlan_ctrl_by_user flag should be set on 0x0003000? ((3), (4) above) return values, but the flag mistakenly also gets set on laptops with 0x0005000? ((1), (2)) return values. This is causing rfkill problems on laptops where 0x0005000? is returned.
Fix the check to only set the wlan_ctrl_by_user flag for 0x0003000? return values.
Fixes: a50bd128f28c ("asus-wmi: record wlan status while controlled by userapp") Link: https://bugzilla.kernel.org/show_bug.cgi?id=219786 Signed-off-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Armin Wolf W_Armin@gmx.de Link: https://lore.kernel.org/r/20250501131702.103360-2-hdegoede@redhat.com Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/asus-wmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index a34d0f53ad16f..d9933d3718129 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -3052,7 +3052,8 @@ static int asus_wmi_add(struct platform_device *pdev) goto fail_leds;
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result); - if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) + if ((result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) == + (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) asus->driver->wlan_ctrl_by_user = 1;
if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {