linux-kernel - Re: [PATCH v2 linux-next] microblaze: dma-mapping: support debug_dma_mapping

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Date:	Thu, 15 Nov 2012 10:34:51 -0700
From:	Shuah Khan <shuah.khan@...com>
To:	monstr@...str.eu, Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	kyungmin.park@...sung.com, m.szyprowski@...sung.com, arnd@...db.de,
	andrzej.p@...sung.com, microblaze-uclinux@...e.uq.edu.au,
	LKML <linux-kernel@...r.kernel.org>, shuahkhan@...il.com
Subject: Re: [PATCH v2 linux-next] microblaze: dma-mapping: support
 debug_dma_mapping_error

On Fri, 2012-10-26 at 09:53 -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>
> Acked-by: Michal Simek <monstr@...str.eu>

Marek,

This is for microblaze to go through your tree.

Thanks,
-- Shuah
> ---
>  arch/microblaze/include/asm/dma-mapping.h |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
> index 01d2282..46460f1 100644
> --- a/arch/microblaze/include/asm/dma-mapping.h
> +++ b/arch/microblaze/include/asm/dma-mapping.h
> @@ -114,6 +114,8 @@ static inline void __dma_sync(unsigned long paddr,
>  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);
>  


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