linux-kernel - Re: [PATCH RFT linux-next] sh: dma-mapping: support debug_dma_mapping

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Date:	Thu, 15 Nov 2012 10:52:43 -0700
From:	Shuah Khan <shuah.khan@...com>
To:	lethal@...ux-sh.org, m.szyprowski@...sung.com
Cc:	kyungmin.park@...sung.com, arnd@...db.de, andrzej.p@...sung.com,
	linux-sh@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	shuahkhan@...il.com
Subject: Re: [PATCH RFT linux-next] sh: dma-mapping: support
 debug_dma_mapping_error

On Fri, 2012-10-26 at 10:20 -0600, Shuah Khan wrote:
> Add support for debug_dma_mapping_error() call to avoid warning from
> debug_dma_unmap() interface when it checks for mapping error checked
> status. Without this patch, device driver failed to check map error
> warning is generated.
> 
> Signed-off-by: Shuah Khan <shuah.khan@...com>
> ---
>  arch/sh/include/asm/dma-mapping.h |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
> index 8bd965e..b437f2c 100644
> --- a/arch/sh/include/asm/dma-mapping.h
> +++ b/arch/sh/include/asm/dma-mapping.h
> @@ -46,6 +46,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
>  {
>  	struct dma_map_ops *ops = get_dma_ops(dev);
>  
> +	debug_dma_mapping_error(dev, dma_addr);
>  	if (ops->mapping_error)
>  		return ops->mapping_error(dev, dma_addr);
>  

Marek,

This one is for sh to go through tree with the other arch
dma_debug_dma_mapping_error() change patches.

Thanks,
-- Shuah

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