linux-kernel - Re: [RFC] cpuidle : Add support for pseudo-cpuidle driver

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Message-ID: <1be8a3d4-52cc-c91c-2560-25e0af41dd5c@infradead.org>
Date:   Wed, 22 Jul 2020 23:24:52 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Abhishek Goel <huntbag@...ux.vnet.ibm.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     rjw@...ysocki.net, daniel.lezcano@...aro.org, mpe@...erman.id.au,
        ego@...ux.vnet.ibm.com
Subject: Re: [RFC] cpuidle : Add support for pseudo-cpuidle driver

On 7/22/20 11:13 PM, Abhishek Goel wrote:
> diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
> index c0aeedd66f02..1d73153a0e35 100644
> --- a/drivers/cpuidle/Kconfig
> +++ b/drivers/cpuidle/Kconfig
> @@ -71,6 +71,15 @@ config HALTPOLL_CPUIDLE
>  	 before halting in the guest (more efficient than polling in the
>  	 host via halt_poll_ns for some scenarios).
>  
> +config TEST_CPUIDLE
> +	tristate "cpuidle test driver"
> +	default m

No default, please.
We don't enable unneeded drivers for the fun of it.

> +	help

Indent the following help text with one tab + 2 spaces.

> +	 This option enables a testing cpuidle driver, which allows to user

	                                                     allows the user  [or a user]

> +	 to define custom idle states with their respective latencies and residencies.
> +	 This is useful for testing the behaviour of governors on different
> +	 set of idle states.

	 sets

> +
>  endif
>  
>  config ARCH_NEEDS_CPU_IDLE_COUPLED

thanks.
-- 
~Randy