[PATCH 3.10 160/180] hp-wmi: Fix wifi cannot be hard-unblocked

[Willy Tarreau]

From: Alex Hung <alex.hung@xxxxxxxxxxxxx>

commit fc8a601e1175ae351f662506030f9939cb7fdbfe upstream.

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@xxxxxxxxxxxxx>
Tested-by: Evgenii Shatokhin <eugene.shatokhin@xxxxxxxxx>
Signed-off-by: Darren Hart <dvhart@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
 drivers/platform/x86/hp-wmi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index d111c86..46497c6 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -640,6 +640,11 @@ static int 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,
-- 
2.8.0.rc2.1.gbe9624a