This is a note to let you know that I've just added the patch titled
cpufreq: Add module aliases for acpi-cpufreq
to the 3.7-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:
cpufreq-add-module-aliases-for-acpi-cpufreq.patch
and it can be found in the queue-3.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From efa17194581bdfca0986dabc178908bd7c21ba00 Mon Sep 17 00:00:00 2001
From: Matthew Garrett <[email protected]>
Date: Tue, 22 Jan 2013 22:33:46 +0100
Subject: cpufreq: Add module aliases for acpi-cpufreq
From: Matthew Garrett <[email protected]>
commit efa17194581bdfca0986dabc178908bd7c21ba00 upstream.
The acpi core will call request_module("acpi-cpufreq") on subsystem init,
but this will fail if the module isn't available at that stage of boot.
Add some module aliases to ensure that udev can load the module on Intel
and AMD systems with the appropriate feature bits - I /think/ that this
will also work on VIA systems, but haven't verified that.
References: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Garrett <[email protected]>
Tested-by: Leonid Isaev <[email protected]>
Acked-by: Borislav Petkov <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/cpufreq/acpi-cpufreq.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -1030,4 +1030,11 @@ MODULE_PARM_DESC(acpi_pstate_strict,
late_initcall(acpi_cpufreq_init);
module_exit(acpi_cpufreq_exit);
+static const struct x86_cpu_id acpi_cpufreq_ids[] = {
+ X86_FEATURE_MATCH(X86_FEATURE_ACPI),
+ X86_FEATURE_MATCH(X86_FEATURE_HW_PSTATE),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, acpi_cpufreq_ids);
+
MODULE_ALIAS("acpi");
Patches currently in stable-queue which might be from
[email protected] are
queue-3.7/cpufreq-add-module-aliases-for-acpi-cpufreq.patch
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