* [PATCH] staging: media: hantro: Remove call to memset after dma_alloc_coherent
@ 2019-07-25 3:06 Hariprasad Kelam
2019-07-25 11:50 ` Boris Brezillon
0 siblings, 1 reply; 4+ messages in thread
From: Hariprasad Kelam @ 2019-07-25 3:06 UTC (permalink / raw)
To: Mauro Carvalho Chehab, Greg Kroah-Hartman, Ezequiel Garcia,
Tomasz Figa, Boris Brezillon, ZhiChao Yu, Hariprasad Kelam,
linux-media, devel, linux-kernel
fix below issue reported by coccicheck
/drivers/staging/media/hantro/hantro_vp8.c:149:16-34: WARNING:
dma_alloc_coherent use in aux_buf -> cpu already zeroes out memory, so
memset is not needed
Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
---
drivers/staging/media/hantro/hantro_vp8.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/staging/media/hantro/hantro_vp8.c b/drivers/staging/media/hantro/hantro_vp8.c
index 66c4533..363ddda 100644
--- a/drivers/staging/media/hantro/hantro_vp8.c
+++ b/drivers/staging/media/hantro/hantro_vp8.c
@@ -151,8 +151,6 @@ int hantro_vp8_dec_init(struct hantro_ctx *ctx)
if (!aux_buf->cpu)
return -ENOMEM;
- memset(aux_buf->cpu, 0, aux_buf->size);
-
/*
* Allocate probability table buffer,
* total 1208 bytes, 4K page is far enough.
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] staging: media: hantro: Remove call to memset after dma_alloc_coherent
2019-07-25 3:06 [PATCH] staging: media: hantro: Remove call to memset after dma_alloc_coherent Hariprasad Kelam
@ 2019-07-25 11:50 ` Boris Brezillon
2019-08-19 4:17 ` Tomasz Figa
0 siblings, 1 reply; 4+ messages in thread
From: Boris Brezillon @ 2019-07-25 11:50 UTC (permalink / raw)
To: Hariprasad Kelam
Cc: Mauro Carvalho Chehab, Greg Kroah-Hartman, Ezequiel Garcia,
Tomasz Figa, ZhiChao Yu, linux-media, devel, linux-kernel
On Thu, 25 Jul 2019 08:36:02 +0530
Hariprasad Kelam <hariprasad.kelam@gmail.com> wrote:
> fix below issue reported by coccicheck
> /drivers/staging/media/hantro/hantro_vp8.c:149:16-34: WARNING:
> dma_alloc_coherent use in aux_buf -> cpu already zeroes out memory, so
> memset is not needed
>
> Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
> ---
> drivers/staging/media/hantro/hantro_vp8.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/drivers/staging/media/hantro/hantro_vp8.c b/drivers/staging/media/hantro/hantro_vp8.c
> index 66c4533..363ddda 100644
> --- a/drivers/staging/media/hantro/hantro_vp8.c
> +++ b/drivers/staging/media/hantro/hantro_vp8.c
> @@ -151,8 +151,6 @@ int hantro_vp8_dec_init(struct hantro_ctx *ctx)
> if (!aux_buf->cpu)
> return -ENOMEM;
>
> - memset(aux_buf->cpu, 0, aux_buf->size);
> -
> /*
> * Allocate probability table buffer,
> * total 1208 bytes, 4K page is far enough.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] staging: media: hantro: Remove call to memset after dma_alloc_coherent
2019-07-25 11:50 ` Boris Brezillon
@ 2019-08-19 4:17 ` Tomasz Figa
2019-08-19 4:19 ` Tomasz Figa
0 siblings, 1 reply; 4+ messages in thread
From: Tomasz Figa @ 2019-08-19 4:17 UTC (permalink / raw)
To: Hans Verkuil
Cc: Hariprasad Kelam, Mauro Carvalho Chehab, Greg Kroah-Hartman,
Ezequiel Garcia, ZhiChao Yu, Linux Media Mailing List, devel,
Linux Kernel Mailing List, Boris Brezillon
Hi Hans,
On Thu, Jul 25, 2019 at 8:50 PM Boris Brezillon
<boris.brezillon@collabora.com> wrote:
>
> On Thu, 25 Jul 2019 08:36:02 +0530
> Hariprasad Kelam <hariprasad.kelam@gmail.com> wrote:
>
> > fix below issue reported by coccicheck
> > /drivers/staging/media/hantro/hantro_vp8.c:149:16-34: WARNING:
> > dma_alloc_coherent use in aux_buf -> cpu already zeroes out memory, so
> > memset is not needed
> >
> > Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
>
> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
>
> > ---
> > drivers/staging/media/hantro/hantro_vp8.c | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/staging/media/hantro/hantro_vp8.c b/drivers/staging/media/hantro/hantro_vp8.c
> > index 66c4533..363ddda 100644
> > --- a/drivers/staging/media/hantro/hantro_vp8.c
> > +++ b/drivers/staging/media/hantro/hantro_vp8.c
> > @@ -151,8 +151,6 @@ int hantro_vp8_dec_init(struct hantro_ctx *ctx)
> > if (!aux_buf->cpu)
> > return -ENOMEM;
> >
> > - memset(aux_buf->cpu, 0, aux_buf->size);
> > -
> > /*
> > * Allocate probability table buffer,
> > * total 1208 bytes, 4K page is far enough.
>
Is this something you will pick to your tree?
Best regards,
Tomasz
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] staging: media: hantro: Remove call to memset after dma_alloc_coherent
2019-08-19 4:17 ` Tomasz Figa
@ 2019-08-19 4:19 ` Tomasz Figa
0 siblings, 0 replies; 4+ messages in thread
From: Tomasz Figa @ 2019-08-19 4:19 UTC (permalink / raw)
To: Hans Verkuil
Cc: Hariprasad Kelam, Mauro Carvalho Chehab, Greg Kroah-Hartman,
Ezequiel Garcia, ZhiChao Yu, Linux Media Mailing List, devel,
Linux Kernel Mailing List, Boris Brezillon
On Mon, Aug 19, 2019 at 1:17 PM Tomasz Figa <tfiga@chromium.org> wrote:
>
> Hi Hans,
>
> On Thu, Jul 25, 2019 at 8:50 PM Boris Brezillon
> <boris.brezillon@collabora.com> wrote:
> >
> > On Thu, 25 Jul 2019 08:36:02 +0530
> > Hariprasad Kelam <hariprasad.kelam@gmail.com> wrote:
> >
> > > fix below issue reported by coccicheck
> > > /drivers/staging/media/hantro/hantro_vp8.c:149:16-34: WARNING:
> > > dma_alloc_coherent use in aux_buf -> cpu already zeroes out memory, so
> > > memset is not needed
> > >
> > > Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
> >
> > Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
> >
> > > ---
> > > drivers/staging/media/hantro/hantro_vp8.c | 2 --
> > > 1 file changed, 2 deletions(-)
> > >
> > > diff --git a/drivers/staging/media/hantro/hantro_vp8.c b/drivers/staging/media/hantro/hantro_vp8.c
> > > index 66c4533..363ddda 100644
> > > --- a/drivers/staging/media/hantro/hantro_vp8.c
> > > +++ b/drivers/staging/media/hantro/hantro_vp8.c
> > > @@ -151,8 +151,6 @@ int hantro_vp8_dec_init(struct hantro_ctx *ctx)
> > > if (!aux_buf->cpu)
> > > return -ENOMEM;
> > >
> > > - memset(aux_buf->cpu, 0, aux_buf->size);
> > > -
> > > /*
> > > * Allocate probability table buffer,
> > > * total 1208 bytes, 4K page is far enough.
> >
>
> Is this something you will pick to your tree?
Ah, sorry, this is already applied. Not sure why searching for it the
first time didn't show anything. I guess I need to start repeating my
searches by default. Sorry for the noise.
Best regards,
Tomasz
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-08-19 4:19 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-07-25 3:06 [PATCH] staging: media: hantro: Remove call to memset after dma_alloc_coherent Hariprasad Kelam
2019-07-25 11:50 ` Boris Brezillon
2019-08-19 4:17 ` Tomasz Figa
2019-08-19 4:19 ` Tomasz Figa
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