hp-wmi: Fix wifi cannot be hard-unblocked

Several users reported wifi cannot be unblocked as discussed in [1].
This patch removes the use of the 2009 flag by BIOS but uses the actual
WMI function calls - it will be skipped if WMI reports unsupported.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=69131

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Tested-by: Evgenii Shatokhin <eugene.shatokhin@yandex.ru>
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 6f145f2d004d86a42858dee42b371f6d9584886d..96ffda493266aa68ef57958eb482b9b0c28900ad 100644 (file)
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -718,6 +718,11 @@ static int __init hp_wmi_rfkill_setup(struct platform_device *device)
        if (err)
                return err;
 
+       err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless,
+                                  sizeof(wireless), 0);
+       if (err)
+               return err;
+
        if (wireless & 0x1) {
                wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev,
                                           RFKILL_TYPE_WLAN,
@@ -882,7 +887,7 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
        wwan_rfkill = NULL;
        rfkill2_count = 0;
 
-       if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device))
+       if (hp_wmi_rfkill_setup(device))
                hp_wmi_rfkill2_setup(device);
 
        err = device_create_file(&device->dev, &dev_attr_display);