This is a note to let you know that I've just added the patch titled
ACPI: run _OSC after ACPI_FULL_INITIALIZATION
to the 3.6-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-run-_osc-after-acpi_full_initialization.patch
and it can be found in the queue-3.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From fc54ab72959edbf229b65ac74b2f122d799ca002 Mon Sep 17 00:00:00 2001
From: Lin Ming <[email protected]>
Date: Mon, 16 Jul 2012 16:30:21 +0800
Subject: ACPI: run _OSC after ACPI_FULL_INITIALIZATION
From: Lin Ming <[email protected]>
commit fc54ab72959edbf229b65ac74b2f122d799ca002 upstream.
The _OSC method may exist in module level code,
so it must be called after ACPI_FULL_INITIALIZATION
On some new platforms with Zero-Power-Optical-Disk-Drive (ZPODD)
support, this fix is necessary to save power.
Signed-off-by: Lin Ming <[email protected]>
Tested-by: Aaron Lu <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/acpi/bus.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -994,8 +994,6 @@ static int __init acpi_bus_init(void)
status = acpi_ec_ecdt_probe();
/* Ignore result. Not having an ECDT is not fatal. */
- acpi_bus_osc_support();
-
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Unable to initialize ACPI objects\n");
@@ -1003,6 +1001,12 @@ static int __init acpi_bus_init(void)
}
/*
+ * _OSC method may exist in module level code,
+ * so it must be run after ACPI_FULL_INITIALIZATION
+ */
+ acpi_bus_osc_support();
+
+ /*
* _PDC control method may load dynamic SSDT tables,
* and we need to install the table handler before that.
*/
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/acpi-run-_osc-after-acpi_full_initialization.patch
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