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* [PATCH 1/3] V4L/DVB: videobuf-dma-sg: Fix a warning due to the usage of min(PAGE_SIZE, arg)
@ 2010-10-07  1:56 Mauro Carvalho Chehab
  2010-10-07  7:48 ` Laurent Pinchart
  0 siblings, 1 reply; 2+ messages in thread
From: Mauro Carvalho Chehab @ 2010-10-07  1:56 UTC (permalink / raw)
  Cc: Linux Media Mailing List

drivers/media/video/videobuf-dma-sg.c: In function ‘videobuf_pages_to_sg’:
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@redhat.com>

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);
 	}
 	return sglist;
 
-- 
1.7.1



^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH 1/3] V4L/DVB: videobuf-dma-sg: Fix a warning due to the usage of min(PAGE_SIZE, arg)
  2010-10-07  1:56 [PATCH 1/3] V4L/DVB: videobuf-dma-sg: Fix a warning due to the usage of min(PAGE_SIZE, arg) Mauro Carvalho Chehab
@ 2010-10-07  7:48 ` Laurent Pinchart
  0 siblings, 0 replies; 2+ messages in thread
From: Laurent Pinchart @ 2010-10-07  7:48 UTC (permalink / raw)
  To: Mauro Carvalho Chehab, Linux Media Mailing List

Hi Mauro,

On Thursday 07 October 2010 03:56:47 Mauro Carvalho Chehab wrote:
> drivers/media/video/videobuf-dma-sg.c: In function ‘videobuf_pages_to_sg’:
> 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@redhat.com>
> 
> 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

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2010-10-07  1:56 [PATCH 1/3] V4L/DVB: videobuf-dma-sg: Fix a warning due to the usage of min(PAGE_SIZE, arg) Mauro Carvalho Chehab
2010-10-07  7:48 ` Laurent Pinchart

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