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

[Rafael J. Wysocki]

On Thu, Mar 5, 2026 at 10:51 PM srinivas pandruvada
<srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote:
>
> 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;

Applied as 7.1 material, thanks!