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

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Message-ID: <1351874901.2721.18.camel@lorien2>
Date:	Fri, 02 Nov 2012 10:48:21 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	rkuo@...eaurora.org, Andrew Morton <akpm@...ux-foundation.org>
Cc:	arnd@...db.de, kyungmin.park@...sung.com, m.szyprowski@...sung.com,
	linas@...eaurora.org, linux-hexagon@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, shuahkhan@...il.com
Subject: Re: [PATCH RFT RESEND linux-next] hexagon: dma-mapping: support
 debug_dma_mapping_error

On Fri, 2012-10-26 at 09:43 -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/hexagon/include/asm/dma-mapping.h |    1 +
>  1 file changed, 1 insertion(+)

Would you like se this patch go through arch tree or linux-next? Please
let me know your preference.

-- Shuah
> 
> diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
> index 85e9935..1957c4c 100644
> --- a/arch/hexagon/include/asm/dma-mapping.h
> +++ b/arch/hexagon/include/asm/dma-mapping.h
> @@ -65,6 +65,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
>  {
>  	struct dma_map_ops *dma_ops = get_dma_ops(dev);
>  
> +	debug_dma_mapping_error(dev, dma_addr);
>  	if (dma_ops->mapping_error)
>  		return dma_ops->mapping_error(dev, dma_addr);
>  


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