linux-kernel - RE: [PATCH v3 1/5] cpupower: Recognise amd-pstate active mode driver

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Message-ID: <CYYPR12MB8655D16BE027009F663328909C5CA@CYYPR12MB8655.namprd12.prod.outlook.com>
Date:   Tue, 20 Jun 2023 03:10:03 +0000
From:   "Yuan, Perry" <Perry.Yuan@....com>
To:     "Karny, Wyes" <Wyes.Karny@....com>,
        "trenn@...e.com" <trenn@...e.com>,
        "shuah@...nel.org" <shuah@...nel.org>
CC:     "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "rafael@...nel.org" <rafael@...nel.org>,
        "Shenoy, Gautham Ranjal" <gautham.shenoy@....com>,
        "Limonciello, Mario" <Mario.Limonciello@....com>,
        "Huang, Ray" <Ray.Huang@....com>
Subject: RE: [PATCH v3 1/5] cpupower: Recognise amd-pstate active mode driver

[AMD Official Use Only - General]

> -----Original Message-----
> From: Karny, Wyes <Wyes.Karny@....com>
> Sent: Tuesday, June 20, 2023 3:05 AM
> To: trenn@...e.com; shuah@...nel.org
> Cc: linux-pm@...r.kernel.org; linux-kernel@...r.kernel.org; rafael@...nel.org;
> Shenoy, Gautham Ranjal <gautham.shenoy@....com>; Limonciello, Mario
> <Mario.Limonciello@....com>; Huang, Ray <Ray.Huang@....com>; Yuan,
> Perry <Perry.Yuan@....com>; Karny, Wyes <Wyes.Karny@....com>
> Subject: [PATCH v3 1/5] cpupower: Recognise amd-pstate active mode driver
>
> amd-pstate active mode driver name is "amd-pstate-epp". Use common prefix
> for string matching condition to recognise amd-pstate active mode driver.
>
> Reviewed-by: Gautham R. Shenoy <gautham.shenoy@....com>
> Signed-off-by: Wyes Karny <wyes.karny@....com>
> ---
>  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 9547b29254a7..0c56fc77f93b 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", 3))
>               ret = true;
>
>       cpufreq_put_driver(driver);
> --
> 2.34.1

Tested-by: Perry Yuan <Perry.Yuan@....com>