RE: [PATCH] drm/amd/powerplay: declare driver if version mismatch as "warning" explicitly

["Quan, Evan" <Evan.Quan@amd.com>]

[AMD Official Use Only - Internal Distribution Only]

Hi Alex,

This was raised by Pramendra. He got plenty of questions from customer about this.
The customer saw these mismatch messages and did not know whether it's an indication of some critical error.
The mismatch messages were update to be prefixed with "warning". So that it get customer reminded but not scared.
Any better idea?

BR,
Evan
-----Original Message-----
From: Alex Deucher <alexdeucher@gmail.com>
Sent: Thursday, June 18, 2020 5:15 AM
To: Quan, Evan <Evan.Quan@amd.com>
Cc: amd-gfx list <amd-gfx@lists.freedesktop.org>; Deucher, Alexander <Alexander.Deucher@amd.com>; Kumar, Pramendra <Pramendra.Kumar@amd.com>
Subject: Re: [PATCH] drm/amd/powerplay: declare driver if version mismatch as "warning" explicitly

On Wed, Jun 17, 2020 at 5:45 AM Evan Quan <evan.quan@amd.com> wrote:
>
> So that user knows it's just a warning and can be safely ignored.

I'm not sure I follow this logic.  I think a warning would cause more concern than just printing it as info.  Why would you ignore a warning?

Alex

>
> Change-Id: Ic518ec3eb68c6bd6682e6131e32cfe90843341ff
> Signed-off-by: Evan Quan <evan.quan@amd.com>
> ---
>  drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> index 2bcb8d16f1b7..22eabc10ea8e 100644
> --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
> @@ -318,11 +318,11 @@ int smu_v11_0_check_fw_version(struct smu_context *smu)
>          * of halt driver loading.
>          */
>         if (if_version != smu->smc_driver_if_version) {
> -               dev_info(smu->adev->dev, "smu driver if version = 0x%08x, smu fw if version = 0x%08x, "
> +               dev_warn(smu->adev->dev, "warning: smu driver if version = 0x%08x, smu fw if version = 0x%08x, "
>                         "smu fw version = 0x%08x (%d.%d.%d)\n",
>                         smu->smc_driver_if_version, if_version,
>                         smu_version, smu_major, smu_minor, smu_debug);
> -               dev_warn(smu->adev->dev, "SMU driver if version not matched\n");
> +               dev_warn(smu->adev->dev, "warning: SMU driver if
> + version not matched\n");
>         }
>
>         return ret;
> --
> 2.27.0
>
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