Patch "cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores" has been added to the 4.4-stable tree

Patch "cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores" has been added to the 4.4-stable tree

[gregkh]

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

    cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores

to the 4.4-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:
     cpupower-fix-turbo-frequency-reporting-for-pre-sandy-bridge-cores.patch
and it can be found in the queue-4.4 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 4cca0457686e4ee1677d69469e4ddfd94d389a80 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 11 Apr 2017 00:29:44 +0100
Subject: cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores

From: Ben Hutchings <ben@decadent.org.uk>

commit 4cca0457686e4ee1677d69469e4ddfd94d389a80 upstream.

The switch that conditionally sets CPUPOWER_CAP_HAS_TURBO_RATIO and
CPUPOWER_CAP_IS_SNB flags is missing a break, so all cores get both
flags set and an assumed base clock of 100 MHz for turbo values.

Reported-by: GSR <gsr.bugs@infernal-iceberg.com>
Tested-by: GSR <gsr.bugs@infernal-iceberg.com>
References: https://bugs.debian.org/859978
Fixes: 8fb2e440b223 (cpupower: Show Intel turbo ratio support via ...)
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 tools/power/cpupower/utils/helpers/cpuid.c |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/power/cpupower/utils/helpers/cpuid.c
+++ b/tools/power/cpupower/utils/helpers/cpuid.c
@@ -156,6 +156,7 @@ out:
 					 */
 			case 0x2C:	/* Westmere EP - Gulftown */
 				cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO;
+				break;
 			case 0x2A:	/* SNB */
 			case 0x2D:	/* SNB Xeon */
 			case 0x3A:	/* IVB */


Patches currently in stable-queue which might be from ben@decadent.org.uk are

queue-4.4/cpupower-fix-turbo-frequency-reporting-for-pre-sandy-bridge-cores.patch