x86/irq: Fix regression caused by commit b568b8601f05
authorJiang Liu <jiang.liu@linux.intel.com>
Mon, 16 Feb 2015 02:11:13 +0000 (10:11 +0800)
committerIngo Molnar <mingo@kernel.org>
Wed, 18 Feb 2015 14:01:41 +0000 (15:01 +0100)
commit1ea76fbadd667b19c4fa4466f3a3b55a505e83d9
tree6f01d2f24b71f767bfe810da645821faa2c53c3f
parente07e0d4cb0c4bfe822ec8491cc06269096a38bea
x86/irq: Fix regression caused by commit b568b8601f05

Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt")
accidently removes support of legacy PIC interrupt when fixing a
regression for Xen, which causes a nasty regression on HP/Compaq
nc6000 where we fail to register the ACPI interrupt, and thus
lose eg. thermal notifications leading a potentially overheated
machine.

So reintroduce support of legacy PIC based ACPI SCI interrupt.

Reported-by: Ville Syrjälä <syrjala@sci.fi>
Tested-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: <stable@vger.kernel.org> # 3.19+
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: linux-pm@vger.kernel.org
Link: http://lkml.kernel.org/r/1424052673-22974-1-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/acpi/boot.c