[PATCH v2] drm/exynos: gem: Fix sparse warning

[Inki Dae]

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 at intel.com>
>> Suggested-by: Sam Ravnborg <sam at ravnborg.org>
>> Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
> Reviewed-by: Sam Ravnborg <sam at 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
>>
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