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

    powernow-k8: Add a kconfig dependency on 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:
     powernow-k8-add-a-kconfig-dependency-on-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 631e8ac18fd59722e7ceb15fceeef3f368c250f9 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <[email protected]>
Date: Fri, 18 Jan 2013 00:19:37 +0100
Subject: powernow-k8: Add a kconfig dependency on acpi-cpufreq

From: Borislav Petkov <[email protected]>

commit 631e8ac18fd59722e7ceb15fceeef3f368c250f9 upstream.

Andreas reports in https://bugzilla.kernel.org/show_bug.cgi?id=51741
that with his Gentoo config, acpi-cpufreq wasn't enabled and
powernow-k8 couldn't handoff properly to acpi-cpufreq leading to
running without P-state support (i.e., cores are constantly in P0).

To alleaviate that, we need to make powernow-k8 depend on acpi-cpufreq
so that acpi-cpufreq is always present.

References: https://bugzilla.kernel.org/show_bug.cgi?id=51741
Reported-by: Andreas <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/cpufreq/Kconfig.x86 |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -106,7 +106,7 @@ config X86_POWERNOW_K7_ACPI
 config X86_POWERNOW_K8
        tristate "AMD Opteron/Athlon64 PowerNow!"
        select CPU_FREQ_TABLE
-       depends on ACPI && ACPI_PROCESSOR
+       depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ
        help
          This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors.
          Support for K10 and newer processors is now in acpi-cpufreq.


Patches currently in stable-queue which might be from [email protected] are

queue-3.7/cpufreq-add-module-aliases-for-acpi-cpufreq.patch
queue-3.7/powernow-k8-add-a-kconfig-dependency-on-acpi-cpufreq.patch
queue-3.7/acpi-check-msr-valid-bit-before-using-p-state-frequencies.patch
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