* [PATCH v2] drm/exynos: gem: Fix sparse warning
[not found] <CGME20200713070718eucas1p2e717879ea21a6cc8a8945d1b0b766b6c@eucas1p2.samsung.com>
@ 2020-07-13 7:07 ` Marek Szyprowski
0 siblings, 0 replies; 6+ messages in thread
From: Marek Szyprowski @ 2020-07-13 7:07 UTC (permalink / raw)
To: dri-devel, linux-samsung-soc
Cc: Marek Szyprowski, Bartlomiej Zolnierkiewicz, Seung-Woo Kim,
Inki Dae, Andrzej Hajda, Sam Ravnborg
kvaddr element of the exynos_gem object points to a memory buffer, thus
it should not have a __iomem annotation. Then, to avoid a warning or
casting on assignment to fbi structure, the screen_buffer element of the
union should be used instead of the screen_base.
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 56a2b47e1af7..5147f5929be7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -92,7 +92,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
offset = fbi->var.xoffset * fb->format->cpp[0];
offset += fbi->var.yoffset * fb->pitches[0];
- fbi->screen_base = exynos_gem->kvaddr + offset;
+ fbi->screen_buffer = exynos_gem->kvaddr + offset;
fbi->screen_size = size;
fbi->fix.smem_len = size;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 7445748288da..74e926abeff0 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -40,7 +40,7 @@ struct exynos_drm_gem {
unsigned int flags;
unsigned long size;
void *cookie;
- void __iomem *kvaddr;
+ void *kvaddr;
dma_addr_t dma_addr;
unsigned long dma_attrs;
struct sg_table *sgt;
--
2.17.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v2] drm/exynos: gem: Fix sparse warning
@ 2020-07-13 7:07 ` Marek Szyprowski
0 siblings, 0 replies; 6+ messages in thread
From: Marek Szyprowski @ 2020-07-13 7:07 UTC (permalink / raw)
To: dri-devel, linux-samsung-soc
Cc: Bartlomiej Zolnierkiewicz, Seung-Woo Kim, Andrzej Hajda,
Sam Ravnborg, Marek Szyprowski
kvaddr element of the exynos_gem object points to a memory buffer, thus
it should not have a __iomem annotation. Then, to avoid a warning or
casting on assignment to fbi structure, the screen_buffer element of the
union should be used instead of the screen_base.
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 56a2b47e1af7..5147f5929be7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -92,7 +92,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
offset = fbi->var.xoffset * fb->format->cpp[0];
offset += fbi->var.yoffset * fb->pitches[0];
- fbi->screen_base = exynos_gem->kvaddr + offset;
+ fbi->screen_buffer = exynos_gem->kvaddr + offset;
fbi->screen_size = size;
fbi->fix.smem_len = size;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 7445748288da..74e926abeff0 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -40,7 +40,7 @@ struct exynos_drm_gem {
unsigned int flags;
unsigned long size;
void *cookie;
- void __iomem *kvaddr;
+ void *kvaddr;
dma_addr_t dma_addr;
unsigned long dma_attrs;
struct sg_table *sgt;
--
2.17.1
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2] drm/exynos: gem: Fix sparse warning
2020-07-13 7:07 ` Marek Szyprowski
@ 2020-07-13 16:03 ` Sam Ravnborg
-1 siblings, 0 replies; 6+ messages in thread
From: Sam Ravnborg @ 2020-07-13 16:03 UTC (permalink / raw)
To: Marek Szyprowski, Inki Dae
Cc: dri-devel, linux-samsung-soc, Bartlomiej Zolnierkiewicz,
Seung-Woo Kim, Andrzej Hajda
On Mon, Jul 13, 2020 at 09:07:08AM +0200, Marek Szyprowski wrote:
> kvaddr element of the exynos_gem object points to a memory buffer, thus
> it should not have a __iomem annotation. Then, to avoid a warning or
> casting on assignment to fbi structure, the screen_buffer element of the
> union should be used instead of the screen_base.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Suggested-by: Sam Ravnborg <sam@ravnborg.org>
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
I expect one of the exynos maintianers (Inki?) to pick it up.
Sam
> ---
> drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
> drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> index 56a2b47e1af7..5147f5929be7 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> @@ -92,7 +92,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
> offset = fbi->var.xoffset * fb->format->cpp[0];
> offset += fbi->var.yoffset * fb->pitches[0];
>
> - fbi->screen_base = exynos_gem->kvaddr + offset;
> + fbi->screen_buffer = exynos_gem->kvaddr + offset;
> fbi->screen_size = size;
> fbi->fix.smem_len = size;
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
> index 7445748288da..74e926abeff0 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
> @@ -40,7 +40,7 @@ struct exynos_drm_gem {
> unsigned int flags;
> unsigned long size;
> void *cookie;
> - void __iomem *kvaddr;
> + void *kvaddr;
> dma_addr_t dma_addr;
> unsigned long dma_attrs;
> struct sg_table *sgt;
> --
> 2.17.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] drm/exynos: gem: Fix sparse warning
@ 2020-07-13 16:03 ` Sam Ravnborg
0 siblings, 0 replies; 6+ messages in thread
From: Sam Ravnborg @ 2020-07-13 16:03 UTC (permalink / raw)
To: Marek Szyprowski, Inki Dae
Cc: Andrzej Hajda, linux-samsung-soc, Seung-Woo Kim, dri-devel,
Bartlomiej Zolnierkiewicz
On Mon, Jul 13, 2020 at 09:07:08AM +0200, Marek Szyprowski wrote:
> kvaddr element of the exynos_gem object points to a memory buffer, thus
> it should not have a __iomem annotation. Then, to avoid a warning or
> casting on assignment to fbi structure, the screen_buffer element of the
> union should be used instead of the screen_base.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Suggested-by: Sam Ravnborg <sam@ravnborg.org>
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
I expect one of the exynos maintianers (Inki?) to pick it up.
Sam
> ---
> drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
> drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> index 56a2b47e1af7..5147f5929be7 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> @@ -92,7 +92,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
> offset = fbi->var.xoffset * fb->format->cpp[0];
> offset += fbi->var.yoffset * fb->pitches[0];
>
> - fbi->screen_base = exynos_gem->kvaddr + offset;
> + fbi->screen_buffer = exynos_gem->kvaddr + offset;
> fbi->screen_size = size;
> fbi->fix.smem_len = size;
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
> index 7445748288da..74e926abeff0 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
> @@ -40,7 +40,7 @@ struct exynos_drm_gem {
> unsigned int flags;
> unsigned long size;
> void *cookie;
> - void __iomem *kvaddr;
> + void *kvaddr;
> dma_addr_t dma_addr;
> unsigned long dma_attrs;
> struct sg_table *sgt;
> --
> 2.17.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] drm/exynos: gem: Fix sparse warning
2020-07-13 16:03 ` Sam Ravnborg
@ 2020-07-14 1:56 ` Inki Dae
-1 siblings, 0 replies; 6+ messages in thread
From: Inki Dae @ 2020-07-14 1:56 UTC (permalink / raw)
To: Sam Ravnborg, Marek Szyprowski
Cc: dri-devel, linux-samsung-soc, Bartlomiej Zolnierkiewicz,
Seung-Woo Kim, Andrzej Hajda
20. 7. 14. 오전 1:03에 Sam Ravnborg 이(가) 쓴 글:
> On Mon, Jul 13, 2020 at 09:07:08AM +0200, Marek Szyprowski wrote:
>> kvaddr element of the exynos_gem object points to a memory buffer, thus
>> it should not have a __iomem annotation. Then, to avoid a warning or
>> casting on assignment to fbi structure, the screen_buffer element of the
>> union should be used instead of the screen_base.
>>
>> Reported-by: kernel test robot <lkp@intel.com>
>> Suggested-by: Sam Ravnborg <sam@ravnborg.org>
>> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
>
> I expect one of the exynos maintianers (Inki?) to pick it up.
Picked it up.
Thanks,
Inki Dae
>
> Sam
>
>> ---
>> drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
>> drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
>> 2 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> index 56a2b47e1af7..5147f5929be7 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> @@ -92,7 +92,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
>> offset = fbi->var.xoffset * fb->format->cpp[0];
>> offset += fbi->var.yoffset * fb->pitches[0];
>>
>> - fbi->screen_base = exynos_gem->kvaddr + offset;
>> + fbi->screen_buffer = exynos_gem->kvaddr + offset;
>> fbi->screen_size = size;
>> fbi->fix.smem_len = size;
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
>> index 7445748288da..74e926abeff0 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
>> @@ -40,7 +40,7 @@ struct exynos_drm_gem {
>> unsigned int flags;
>> unsigned long size;
>> void *cookie;
>> - void __iomem *kvaddr;
>> + void *kvaddr;
>> dma_addr_t dma_addr;
>> unsigned long dma_attrs;
>> struct sg_table *sgt;
>> --
>> 2.17.1
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://protect2.fireeye.com/url?k=33cc4690-6e52dd7a-33cdcddf-0cc47a6cba04-3234389cf6ac8e89&q=1&u=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Fdri-devel
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] drm/exynos: gem: Fix sparse warning
@ 2020-07-14 1:56 ` Inki Dae
0 siblings, 0 replies; 6+ messages in thread
From: Inki Dae @ 2020-07-14 1:56 UTC (permalink / raw)
To: Sam Ravnborg, Marek Szyprowski
Cc: Andrzej Hajda, linux-samsung-soc, Seung-Woo Kim, dri-devel,
Bartlomiej Zolnierkiewicz
20. 7. 14. 오전 1:03에 Sam Ravnborg 이(가) 쓴 글:
> On Mon, Jul 13, 2020 at 09:07:08AM +0200, Marek Szyprowski wrote:
>> kvaddr element of the exynos_gem object points to a memory buffer, thus
>> it should not have a __iomem annotation. Then, to avoid a warning or
>> casting on assignment to fbi structure, the screen_buffer element of the
>> union should be used instead of the screen_base.
>>
>> Reported-by: kernel test robot <lkp@intel.com>
>> Suggested-by: Sam Ravnborg <sam@ravnborg.org>
>> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
>
> I expect one of the exynos maintianers (Inki?) to pick it up.
Picked it up.
Thanks,
Inki Dae
>
> Sam
>
>> ---
>> drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
>> drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
>> 2 files changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> index 56a2b47e1af7..5147f5929be7 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
>> @@ -92,7 +92,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
>> offset = fbi->var.xoffset * fb->format->cpp[0];
>> offset += fbi->var.yoffset * fb->pitches[0];
>>
>> - fbi->screen_base = exynos_gem->kvaddr + offset;
>> + fbi->screen_buffer = exynos_gem->kvaddr + offset;
>> fbi->screen_size = size;
>> fbi->fix.smem_len = size;
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
>> index 7445748288da..74e926abeff0 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
>> @@ -40,7 +40,7 @@ struct exynos_drm_gem {
>> unsigned int flags;
>> unsigned long size;
>> void *cookie;
>> - void __iomem *kvaddr;
>> + void *kvaddr;
>> dma_addr_t dma_addr;
>> unsigned long dma_attrs;
>> struct sg_table *sgt;
>> --
>> 2.17.1
>>
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://protect2.fireeye.com/url?k=33cc4690-6e52dd7a-33cdcddf-0cc47a6cba04-3234389cf6ac8e89&q=1&u=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Fdri-devel
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-07-14 1:50 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <CGME20200713070718eucas1p2e717879ea21a6cc8a8945d1b0b766b6c@eucas1p2.samsung.com>
2020-07-13 7:07 ` [PATCH v2] drm/exynos: gem: Fix sparse warning Marek Szyprowski
2020-07-13 7:07 ` Marek Szyprowski
2020-07-13 16:03 ` Sam Ravnborg
2020-07-13 16:03 ` Sam Ravnborg
2020-07-14 1:56 ` Inki Dae
2020-07-14 1:56 ` Inki Dae
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.