From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 10 Apr 2017 23:29:44 +0000 (+0100)
Subject: cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4cca0457686e4ee1677d69469e4ddfd94d389a80;p=linux.git

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

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>
---

diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c
index 93b0aa74ca03b..39c2c7d067bba 100644
--- 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 */