[PATCH-next] Fix unintentional integer overflow

[Sundararaju, Sathishkumar]

All occurrences of this error fix should have been together in a single 
patch both in _get and _set callbacks corresponding to f0b19b84d391, 
please avoid separate patch for each occurrence.

Sorry Alex, I missed to note this yesterday.


Regards,
Sathish


On 10/4/2024 1:46 PM, Advait Dhamorikar wrote:
> Fix shift-count-overflow when creating mask.
> The expression's value may not be what the
> programmer intended, because the expression is
> evaluated using a narrower integer type.
>
> Fixes: f0b19b84d391 ("drm/amdgpu: add amdgpu_jpeg_sched_mask debugfs")
> Signed-off-by: Advait Dhamorikar<advaitdhamorikar at gmail.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
> index 95e2796919fc..7df402c45f40 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
> @@ -388,7 +388,7 @@ static int amdgpu_debugfs_jpeg_sched_mask_get(void *data, u64 *val)
>   		for (j = 0; j < adev->jpeg.num_jpeg_rings; ++j) {
>   			ring = &adev->jpeg.inst[i].ring_dec[j];
>   			if (ring->sched.ready)
> -				mask |= 1 << ((i * adev->jpeg.num_jpeg_rings) + j);
> +				mask |= (u64)1 << ((i * adev->jpeg.num_jpeg_rings) + j);
>   		}
>   	}
>   	*val = mask;
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