Patch "hp-wmi: Fix wifi cannot be hard-unblocked" has been added to the 4.4-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    hp-wmi: Fix wifi cannot be hard-unblocked

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     hp-wmi-fix-wifi-cannot-be-hard-unblocked.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From fc8a601e1175ae351f662506030f9939cb7fdbfe Mon Sep 17 00:00:00 2001
From: Alex Hung <alex.hung@canonical.com>
Date: Mon, 13 Jun 2016 19:44:00 +0800
Subject: hp-wmi: Fix wifi cannot be hard-unblocked

From: Alex Hung <alex.hung@canonical.com>

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@canonical.com>
Tested-by: Evgenii Shatokhin <eugene.shatokhin@yandex.ru>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/platform/x86/hp-wmi.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -723,6 +723,11 @@ static int __init hp_wmi_rfkill_setup(st
 	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,
@@ -910,7 +915,7 @@ static int __init hp_wmi_bios_setup(stru
 	gps_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);


Patches currently in stable-queue which might be from alex.hung@canonical.com are

queue-4.4/hp-wmi-fix-wifi-cannot-be-hard-unblocked.patch