linux-kernel - [PATCH] cpupower : frequency-set -r option misses the last cpu in related cpu list

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Message-Id: <20190529093033.30068-1-huntbag@linux.vnet.ibm.com>
Date:   Wed, 29 May 2019 04:30:33 -0500
From:   Abhishek Goel <huntbag@...ux.vnet.ibm.com>
To:     trenn@...e.com, shuah@...nel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Abhishek Goel <huntbag@...ux.vnet.ibm.com>
Subject: [PATCH] cpupower : frequency-set -r option misses the last cpu in related cpu list

To set frequency on specific cpus using cpupower, following syntax can
be used :
cpupower -c #i frequency-set -f #f -r

While setting frequency using cpupower frequency-set command, if we use
'-r' option, it is expected to set frequency for all cpus related to
cpu #i. But it is observed to be missing the last cpu in related cpu
list. This patch fixes the problem.

Signed-off-by: Abhishek Goel <huntbag@...ux.vnet.ibm.com>
---
 tools/power/cpupower/utils/cpufreq-set.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c
index 1eef0aed6..08a405593 100644
--- a/tools/power/cpupower/utils/cpufreq-set.c
+++ b/tools/power/cpupower/utils/cpufreq-set.c
@@ -306,6 +306,8 @@ int cmd_freq_set(int argc, char **argv)
 				bitmask_setbit(cpus_chosen, cpus->cpu);
 				cpus = cpus->next;
 			}
+			/* Set the last cpu in related cpus list */
+			bitmask_setbit(cpus_chosen, cpus->cpu);
 			cpufreq_put_related_cpus(cpus);
 		}
 	}
-- 
2.17.1