Re: [PATCH 12/12] cpufreq/amd-pstate: Remove the unncecessary driver_lock in amd_pstate_update_limits

[Mario Limonciello]

On 2/5/2025 05:25, Dhananjay Ugwekar wrote:
> There is no need to take a driver wide lock while updating the
> highest_perf value in the percpu cpudata struct. Hence remove it.
>
> Signed-off-by: Dhananjay Ugwekar <dhananjay.ugwekar@xxxxxxx>

Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>

> ---
>   drivers/cpufreq/amd-pstate.c | 2 --
>   1 file changed, 2 deletions(-)
>
> diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
> index ee7e3f0a4c0a..08ae48076812 100644
> --- a/drivers/cpufreq/amd-pstate.c
> +++ b/drivers/cpufreq/amd-pstate.c
> @@ -832,8 +832,6 @@ static void amd_pstate_update_limits(unsigned int cpu)
>   	if (!policy)
>   		return;
>   
> -	guard(mutex)(&amd_pstate_driver_lock);
> -
>   	if (amd_get_highest_perf(cpu, &cur_high))
>   		return;
>