linux-kernel - *powersave* governor shown despite disabled in configuration

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Date:   Mon, 10 Dec 2018 16:30:05 +0100
From:   Paul Menzel <pmenzel@...gen.mpg.de>
To:     linux-pm@...r.kernel.org
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: *powersave* governor shown despite disabled in configuration

Dear Linux folks,


With Linux 4.14.76, the scaling governor *powersave* is shown as
being available despite being disabled in the configuration.

```
$ uname -a
Linux xxx.molgen.mpg.de 4.14.76.mx64.228 #1 SMP Tue Oct 16 19:20:58 CEST 2018 x86_64 GNU/Linux
$ zcat /proc/config.gz |grep CONFIG_CPU_FREQ
CONFIG_CPU_FREQ=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_GOV_SCHEDUTIL is not set
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors 
performance powersave
$ cat  /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance
```


Kind regards,

Paul


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