[PATCH 2/2] drm/radeon: avoid a useless memset

[PATCH 2/2] drm/radeon: avoid a useless memset

[Christophe JAILLET]

Avoid a memset after a call to 'dma_alloc_coherent()'.
This is useless since
commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/gpu/drm/radeon/radeon_gart.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index b7ce254e5663..3808a753127b 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -85,7 +85,6 @@ int radeon_gart_table_ram_alloc(struct radeon_device *rdev)
 	}
 #endif
 	rdev->gart.ptr = ptr;
-	memset((void *)rdev->gart.ptr, 0, rdev->gart.table_size);
 	return 0;
 }
 
-- 
2.25.1

Re: [PATCH 2/2] drm/radeon: avoid a useless memset

[Christian König]

Am 27.07.20 um 12:34 schrieb Christophe JAILLET:
> Avoid a memset after a call to 'dma_alloc_coherent()'.
> This is useless since
> commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Reviewed-by: Christian König <christian.koenig@amd.com>

> ---
>   drivers/gpu/drm/radeon/radeon_gart.c | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
> index b7ce254e5663..3808a753127b 100644
> --- a/drivers/gpu/drm/radeon/radeon_gart.c
> +++ b/drivers/gpu/drm/radeon/radeon_gart.c
> @@ -85,7 +85,6 @@ int radeon_gart_table_ram_alloc(struct radeon_device *rdev)
>   	}
>   #endif
>   	rdev->gart.ptr = ptr;
> -	memset((void *)rdev->gart.ptr, 0, rdev->gart.table_size);
>   	return 0;
>   }
>   

Re: [PATCH 2/2] drm/radeon: avoid a useless memset

[Alex Deucher]

Applied.  Thanks!

Alex

On Mon, Jul 27, 2020 at 9:41 AM Christian König
<ckoenig.leichtzumerken@gmail.com> wrote:
>
> Am 27.07.20 um 12:34 schrieb Christophe JAILLET:
> > Avoid a memset after a call to 'dma_alloc_coherent()'.
> > This is useless since
> > commit 518a2f1925c3 ("dma-mapping: zero memory returned from dma_alloc_*")
> >
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>
> Reviewed-by: Christian König <christian.koenig@amd.com>
>
> > ---
> >   drivers/gpu/drm/radeon/radeon_gart.c | 1 -
> >   1 file changed, 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
> > index b7ce254e5663..3808a753127b 100644
> > --- a/drivers/gpu/drm/radeon/radeon_gart.c
> > +++ b/drivers/gpu/drm/radeon/radeon_gart.c
> > @@ -85,7 +85,6 @@ int radeon_gart_table_ram_alloc(struct radeon_device *rdev)
> >       }
> >   #endif
> >       rdev->gart.ptr = ptr;
> > -     memset((void *)rdev->gart.ptr, 0, rdev->gart.table_size);
> >       return 0;
> >   }
> >
>
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