linux-kernel - Re: [PATCH] iommu/omap: Remove casting the return value which is a void pointer

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Message-ID: <52324073.8090101@ti.com>
Date:	Thu, 12 Sep 2013 17:30:11 -0500
From:	Suman Anna <s-anna@...com>
To:	Jingoo Han <jg1.han@...sung.com>
CC:	"'Andrew Morton'" <akpm@...ux-foundation.org>,
	"'Joerg Roedel'" <joro@...tes.org>, <linux-kernel@...r.kernel.org>,
	<iommu@...ts.linux-foundation.org>
Subject: Re: [PATCH] iommu/omap: Remove casting the return value which is
 a void pointer

On 09/09/2013 12:39 AM, Jingoo Han wrote:
> Casting the return value which is a void pointer is redundant.
> The conversion from void pointer to any other pointer type is
> guaranteed by the C programming language.
> 
> Signed-off-by: Jingoo Han <jg1.han@...sung.com>

Thanks, LGTM.

> ---
>  drivers/iommu/omap-iopgtable.h |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iommu/omap-iopgtable.h b/drivers/iommu/omap-iopgtable.h
> index f4003d5..b6f9a51 100644
> --- a/drivers/iommu/omap-iopgtable.h
> +++ b/drivers/iommu/omap-iopgtable.h
> @@ -95,4 +95,4 @@ static inline phys_addr_t omap_iommu_translate(u32 d, u32 va, u32 mask)
>  #define iopte_offset(iopgd, da)	(iopgd_page_vaddr(iopgd) + iopte_index(da))
>  
>  #define to_iommu(dev)							\
> -	((struct omap_iommu *)platform_get_drvdata(to_platform_device(dev)))
> +	(platform_get_drvdata(to_platform_device(dev)))
> 

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