Re: [PATCH] cpufreq: intel_pstate: Allow repeated intel_pstate disable

[srinivas pandruvada]

On Thu, 2026-02-19 at 19:15 +0100, Fabio M. De Francesco wrote:
> Repeated intel_pstate disables currently return an error, adding
> unnecessary
> complexity to userspace scripts which must first read the current
> state and
> conditionally write 'off'.
> 
> Make repeated intel_pstate disables a no-op.
> 
> Cc: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxx>
> Signed-off-by: Fabio M. De Francesco
> <fabio.m.de.francesco@xxxxxxxxxxxxxxx>

Acked-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>

> ---
>  drivers/cpufreq/intel_pstate.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/cpufreq/intel_pstate.c
> b/drivers/cpufreq/intel_pstate.c
> index 1625ec2d0d06..d639cc150092 100644
> --- a/drivers/cpufreq/intel_pstate.c
> +++ b/drivers/cpufreq/intel_pstate.c
> @@ -3470,7 +3470,7 @@ static int intel_pstate_update_status(const
> char *buf, size_t size)
>  {
>  	if (size == 3 && !strncmp(buf, "off", size)) {
>  		if (!intel_pstate_driver)
> -			return -EINVAL;
> +			return 0;
>  
>  		if (hwp_active)
>  			return -EBUSY;