linux-kernel - Re: [PATCH 19/20] drm/amd/amdgpu/amdgpu_sdma: Increase buffer size to account for all possible values

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Date:   Thu, 24 Aug 2023 10:56:39 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     Lee Jones <lee@...nel.org>
Cc:     "Pan, Xinhui" <Xinhui.Pan@....com>, linux-kernel@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        Daniel Vetter <daniel@...ll.ch>,
        Alex Deucher <alexander.deucher@....com>,
        David Airlie <airlied@...il.com>,
        Christian König <christian.koenig@....com>
Subject: Re: [PATCH 19/20] drm/amd/amdgpu/amdgpu_sdma: Increase buffer size to
 account for all possible values

Applied.  Thanks!

On Thu, Aug 24, 2023 at 3:38 AM Lee Jones <lee@...nel.org> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c: In function ‘amdgpu_sdma_init_microcode’:
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c:217:64: warning: ‘.bin’ directive output may be truncated writing 4 bytes into a region of size between 0 and 32 [-Wformat-truncation=]
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c:217:17: note: ‘snprintf’ output between 13 and 52 bytes into a destination of size 40
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c:215:66: warning: ‘snprintf’ output may be truncated before the last format character [-Wformat-truncation=]
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c:215:17: note: ‘snprintf’ output between 12 and 41 bytes into a destination of size 40
>
> Signed-off-by: Lee Jones <lee@...nel.org>
> ---
> Cc: Alex Deucher <alexander.deucher@....com>
> Cc: "Christian König" <christian.koenig@....com>
> Cc: "Pan, Xinhui" <Xinhui.Pan@....com>
> Cc: David Airlie <airlied@...il.com>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: amd-gfx@...ts.freedesktop.org
> Cc: dri-devel@...ts.freedesktop.org
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> index e2b9392d7f0de..572f861e3f706 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c
> @@ -208,7 +208,7 @@ int amdgpu_sdma_init_microcode(struct amdgpu_device *adev,
>         const struct sdma_firmware_header_v2_0 *sdma_hdr;
>         uint16_t version_major;
>         char ucode_prefix[30];
> -       char fw_name[40];
> +       char fw_name[52];
>
>         amdgpu_ucode_ip_version_decode(adev, SDMA0_HWIP, ucode_prefix, sizeof(ucode_prefix));
>         if (instance == 0)
> --
> 2.42.0.rc1.204.g551eb34607-goog
>