Re: [PATCH 1/3] V4L/DVB: videobuf-dma-sg: Fix a warning due to the usage of min(PAGE_SIZE, arg)

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Hi Mauro,

On Thursday 07 October 2010 03:56:47 Mauro Carvalho Chehab wrote:
> drivers/media/video/videobuf-dma-sg.c: In function âvideobuf_pages_to_sgâ:
> drivers/media/video/videobuf-dma-sg.c:119: warning: comparison of distinct
> pointer types lacks a cast drivers/media/video/videobuf-dma-sg.c:120:
> warning: comparison of distinct pointer types lacks a cast
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> 
> diff --git a/drivers/media/video/videobuf-dma-sg.c
> b/drivers/media/video/videobuf-dma-sg.c index 359f2f3..7153e44 100644
> --- a/drivers/media/video/videobuf-dma-sg.c
> +++ b/drivers/media/video/videobuf-dma-sg.c
> @@ -116,8 +116,8 @@ static struct scatterlist *videobuf_pages_to_sg(struct
> page **pages, goto nopage;
>  		if (PageHighMem(pages[i]))
>  			goto highmem;
> -		sg_set_page(&sglist[i], pages[i], min(PAGE_SIZE, size), 0);
> -		size -= min(PAGE_SIZE, size);
> +		sg_set_page(&sglist[i], pages[i], min((unsigned)PAGE_SIZE, size), 0);
> +		size -= min((unsigned)PAGE_SIZE, size);

I think min_t(size_t, PAGE_SIZE, size) is the preferred way.

>  	}
>  	return sglist;

-- 
Regards,

Laurent Pinchart
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