Patch "ACPI: Using correct irq when waiting for events" has been added to the 4.3-stable tree

Patch "ACPI: Using correct irq when waiting for events" has been added to the 4.3-stable tree

[gregkh]

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

    ACPI: Using correct irq when waiting for events

to the 4.3-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-using-correct-irq-when-waiting-for-events.patch
and it can be found in the queue-4.3 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 efb1cf7d28b8aeacec53e9ba8f3f2809c5cb9686 Mon Sep 17 00:00:00 2001
From: Chen Yu <yu.c.chen@intel.com>
Date: Sun, 25 Oct 2015 01:02:36 +0800
Subject: ACPI: Using correct irq when waiting for events

From: Chen Yu <yu.c.chen@intel.com>

commit efb1cf7d28b8aeacec53e9ba8f3f2809c5cb9686 upstream.

When the system is waiting for GPE/fixed event handler to finish,
it uses acpi_gbl_FADT.sci_interrupt directly as the IRQ number.
However, the remapped IRQ returned by acpi_gsi_to_irq() should be
passed to synchronize_hardirq() instead of it.

Acked-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/acpi/osl.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1183,8 +1183,8 @@ void acpi_os_wait_events_complete(void)
 	 * Make sure the GPE handler or the fixed event handler is not used
 	 * on another CPU after removal.
 	 */
-	if (acpi_irq_handler)
-		synchronize_hardirq(acpi_gbl_FADT.sci_interrupt);
+	if (acpi_sci_irq_valid())
+		synchronize_hardirq(acpi_sci_irq);
 	flush_workqueue(kacpid_wq);
 	flush_workqueue(kacpi_notify_wq);
 }


Patches currently in stable-queue which might be from yu.c.chen@intel.com are

queue-4.3/acpi-using-correct-irq-when-waiting-for-events.patch
queue-4.3/acpi-pm-fix-incorrect-wakeup-irq-setting-during-suspend-to-idle.patch
queue-4.3/acpi-use-correct-irq-when-uninstalling-acpi-interrupt-handler.patch