linux-kernel - Re: [PATCH] drm/amdgpu: fix kernel-doc warnings on non-kernel-doc comments

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Date:   Mon, 9 Aug 2021 14:28:27 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel test robot <lkp@...el.com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>, Dennis Li <Dennis.Li@....com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH] drm/amdgpu: fix kernel-doc warnings on non-kernel-doc comments

On Sat, Aug 7, 2021 at 7:38 PM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> Don't use "begin kernel-doc notation" (/**) for comments that are
> not kernel-doc. This eliminates warnings reported by the 0day bot.
>
> drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c:89: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
>     * This shader is used to clear VGPRS and LDS, and also write the input
> drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c:209: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
>     * The below shaders are used to clear SGPRS, and also write the input
> drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c:301: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
>     * This shader is used to clear the uninitiated sgprs after the above
>
> Fixes: 0e0036c7d13b ("drm/amdgpu: fix no full coverage issue for gprs initialization")
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Cc: Alex Deucher <alexander.deucher@....com>
> Cc: Christian König <christian.koenig@....com>
> Cc: "Pan, Xinhui" <Xinhui.Pan@....com>
> Cc: Dennis Li <Dennis.Li@....com>
> Cc: amd-gfx@...ts.freedesktop.org
> Cc: dri-devel@...ts.freedesktop.org

Applied.  Thanks!

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> --- linux-next-20210806.orig/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
> +++ linux-next-20210806/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
> @@ -85,7 +85,7 @@ static const struct soc15_reg_golden gol
>         SOC15_REG_GOLDEN_VALUE(GC, 0, regTCI_CNTL_3, 0xff, 0x20),
>  };
>
> -/**
> +/*
>   * This shader is used to clear VGPRS and LDS, and also write the input
>   * pattern into the write back buffer, which will be used by driver to
>   * check whether all SIMDs have been covered.
> @@ -206,7 +206,7 @@ const struct soc15_reg_entry vgpr_init_r
>         { SOC15_REG_ENTRY(GC, 0, regCOMPUTE_STATIC_THREAD_MGMT_SE7), 0xffffffff },
>  };
>
> -/**
> +/*
>   * The below shaders are used to clear SGPRS, and also write the input
>   * pattern into the write back buffer. The first two dispatch should be
>   * scheduled simultaneously which make sure that all SGPRS could be
> @@ -302,7 +302,7 @@ const struct soc15_reg_entry sgpr96_init
>         { SOC15_REG_ENTRY(GC, 0, regCOMPUTE_STATIC_THREAD_MGMT_SE7), 0xffffffff },
>  };
>
> -/**
> +/*
>   * This shader is used to clear the uninitiated sgprs after the above
>   * two dispatches, because of hardware feature, dispath 0 couldn't clear
>   * top hole sgprs. Therefore need 4 waves per SIMD to cover these sgprs