linux-kernel - [PATCH AUTOSEL 4.14 032/105] cpupower : frequency-set -r option misses the last cpu in related cpu list

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Date:   Mon, 15 Jul 2019 10:27:26 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Abhishek Goel <huntbag@...ux.vnet.ibm.com>,
        Thomas Renninger <trenn@...e.de>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>, linux-pm@...r.kernel.org
Subject: [PATCH AUTOSEL 4.14 032/105] cpupower : frequency-set -r option misses the last cpu in related cpu list

From: Abhishek Goel <huntbag@...ux.vnet.ibm.com>

[ Upstream commit 04507c0a9385cc8280f794a36bfff567c8cc1042 ]

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>
Reviewed-by: Thomas Renninger <trenn@...e.de>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 1eef0aed6423..08a405593a79 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);
 		}
 	}
-- 
2.20.1