linux-kernel - Re: [PATCH RFT RESEND linux-next] ia64: dma-mapping: support debug_dma_mapping

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Message-ID: <1353002927.2532.46.camel@lorien2>
Date:	Thu, 15 Nov 2012 11:08:47 -0700
From:	Shuah Khan <shuah.khan@...com>
To:	tony.luck@...el.com, m.szyprowski@...sung.com
Cc:	fenghua.yu@...el.com, arnd@...db.de, andrzej.p@...sung.com,
	kyungmin.park@...sung.com, linux-ia64@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, shuahkhan@...il.com
Subject: Re: [PATCH RFT RESEND linux-next] ia64: dma-mapping: support
 debug_dma_mapping_error

On Fri, 2012-10-26 at 09:45 -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/ia64/include/asm/dma-mapping.h |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
> index 4f5e814..cf3ab7e 100644
> --- a/arch/ia64/include/asm/dma-mapping.h
> +++ b/arch/ia64/include/asm/dma-mapping.h
> @@ -58,6 +58,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
>  static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
>  {
>  	struct dma_map_ops *ops = platform_dma_get_ops(dev);
> +	debug_dma_mapping_error(dev, daddr);
>  	return ops->mapping_error(dev, daddr);
>  }
>  

Marek,

This one is for ia64 to go through your tree with all the other arch
debug_dma_mapping_error() patches.

Thanks,
-- Shuah

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