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

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Date:	Thu, 15 Nov 2012 11:00:35 -0700
From:	Shuah Khan <shuah.khan@...com>
To:	jonas@...thpole.se, Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	linux@...ts.openrisc.net, LKML <linux-kernel@...r.kernel.org>,
	shuahkhan@...il.com
Subject: Re: [PATCH RFT RESEND linux-next] openrisc: dma-mapping: support
 debug_dma_mapping_error

On Fri, 2012-10-26 at 10:05 -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/openrisc/include/asm/dma-mapping.h |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
> index fab8628..f12de49 100644
> --- a/arch/openrisc/include/asm/dma-mapping.h
> +++ b/arch/openrisc/include/asm/dma-mapping.h
> @@ -95,6 +95,7 @@ static inline int dma_supported(struct device *dev, u64 dma_mask)
>  
>  static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
>  {
> +	debug_dma_mapping_error(dev, dma_addr);
>  	return 0;
>  }
>  

Marek/Jonas,

This one is for openrisc to go through Marek's tree with the other arch
debug_dma_mapping_error() patches. Hoping it is ok with Jonas.

Thanks,
-- Shuah

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