Patch "ACPI: Do not create a platform_device for IOAPIC/IOxAPIC" has been added to the 4.9-stable tree

Patch "ACPI: Do not create a platform_device for IOAPIC/IOxAPIC" has been added to the 4.9-stable tree

[gregkh]

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

    ACPI: Do not create a platform_device for IOAPIC/IOxAPIC

to the 4.9-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:
     acpi-do-not-create-a-platform_device-for-ioapic-ioxapic.patch
and it can be found in the queue-4.9 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 08f63d97749185fab942a3a47ed80f5bd89b8b7d Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Wed, 22 Mar 2017 18:33:25 +0100
Subject: ACPI: Do not create a platform_device for IOAPIC/IOxAPIC

From: Joerg Roedel <jroedel@suse.de>

commit 08f63d97749185fab942a3a47ed80f5bd89b8b7d upstream.

No platform-device is required for IO(x)APICs, so don't even
create them.

[ rjw: This fixes a problem with leaking platform device objects
  after IOAPIC/IOxAPIC hot-removal events.]

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/acpi/acpi_platform.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -25,9 +25,11 @@
 ACPI_MODULE_NAME("platform");
 
 static const struct acpi_device_id forbidden_id_list[] = {
-	{"PNP0000", 0},	/* PIC */
-	{"PNP0100", 0},	/* Timer */
-	{"PNP0200", 0},	/* AT DMA Controller */
+	{"PNP0000",  0},	/* PIC */
+	{"PNP0100",  0},	/* Timer */
+	{"PNP0200",  0},	/* AT DMA Controller */
+	{"ACPI0009", 0},	/* IOxAPIC */
+	{"ACPI000A", 0},	/* IOAPIC */
 	{"", 0},
 };
 


Patches currently in stable-queue which might be from jroedel@suse.de are

queue-4.9/acpi-do-not-create-a-platform_device-for-ioapic-ioxapic.patch