Re: [PATCH] cpupower: Fix querying boost support for amd-pstate-epp mode

[Huang Rui]

On Sat, Aug 12, 2023 at 05:35:01AM +0800, Limonciello, Mario wrote:
> When running in active mode the driver for amd-pstate has -epp appended.
> This throws off amd-pstate detection.
> 
> To detect amd-pstate look for the prefix instead.
> 
> Fixes: ffa5096a7c33 ("cpufreq: amd-pstate: implement Pstate EPP support for the AMD processors")
> Reported-by: chenhq2005@xxxxxxxxx
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217755
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>

Acked-by: Huang Rui <ray.huang@xxxxxxx>

> ---
>  tools/power/cpupower/utils/helpers/misc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c
> index 9547b29254a7f..01c0440efe850 100644
> --- a/tools/power/cpupower/utils/helpers/misc.c
> +++ b/tools/power/cpupower/utils/helpers/misc.c
> @@ -95,7 +95,7 @@ bool cpupower_amd_pstate_enabled(void)
>  	if (!driver)
>  		return ret;
>  
> -	if (!strcmp(driver, "amd-pstate"))
> +	if (!strncmp(driver, "amd-pstate", 10))
>  		ret = true;
>  
>  	cpufreq_put_driver(driver);
> -- 
> 2.34.1
>