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From: Joerg Roedel <joerg.roedel@amd.com>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: mingo@redhat.com, linux-kernel@vger.kernel.org,
	iommu@lists.linux-foundation.org
Subject: Re: [PATCH] x86: gart alloc_coherent doesn't need to check NULL device argument
Date: Fri, 5 Sep 2008 12:41:29 +0200	[thread overview]
Message-ID: <20080905104129.GZ3189@amd.com> (raw)
In-Reply-To: <1220605129-18359-4-git-send-email-fujita.tomonori@lab.ntt.co.jp>

True, thanks.

On Fri, Sep 05, 2008 at 05:58:49PM +0900, FUJITA Tomonori wrote:
> asm/dma-mapping.h guarantees that gart alloc_coherent doesn't get NULL
> device argument.
> 
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

Acked-by: Joerg Roedel <joerg.roedel@amd.com>

> ---
>  arch/x86/kernel/pci-gart_64.c |    3 ---
>  1 files changed, 0 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
> index 4d08649..0b99d4a 100644
> --- a/arch/x86/kernel/pci-gart_64.c
> +++ b/arch/x86/kernel/pci-gart_64.c
> @@ -506,9 +506,6 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
>  
>  	align_mask = (1UL << get_order(size)) - 1;
>  
> -	if (!dev)
> -		dev = &x86_dma_fallback_dev;
> -
>  	*dma_addr = dma_map_area(dev, __pa(vaddr), size, DMA_BIDIRECTIONAL,
>  				 align_mask);
>  	flush_gart();
> -- 
> 1.5.4.2
> 
> 

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  reply	other threads:[~2008-09-05 10:42 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-05  8:58 [PATCH 0/3] fix alloc_coherent allocation issues (tip/x86/iommu) FUJITA Tomonori
2008-09-05  8:58 ` [PATCH] x86: fix nommu_alloc_coherent allocation with NULL device argument FUJITA Tomonori
2008-09-05  8:58   ` [PATCH] x86: use __GFP_NORETRY in the case of GFP_DMA with pci-nommu FUJITA Tomonori
2008-09-05  8:58     ` [PATCH] x86: gart alloc_coherent doesn't need to check NULL device argument FUJITA Tomonori
2008-09-05 10:41       ` Joerg Roedel [this message]
2008-09-05 10:43     ` [PATCH] x86: use __GFP_NORETRY in the case of GFP_DMA with pci-nommu Joerg Roedel
2008-09-06 12:18       ` FUJITA Tomonori
2008-09-08 11:41         ` Joerg Roedel
2008-09-05 10:40   ` [PATCH] x86: fix nommu_alloc_coherent allocation with NULL device argument Joerg Roedel
2008-09-05 10:49     ` Ingo Molnar
2008-09-05 11:56     ` Joerg Roedel
2008-09-06 12:18     ` FUJITA Tomonori
2008-09-05  9:11 ` [PATCH 0/3] fix alloc_coherent allocation issues (tip/x86/iommu) FUJITA Tomonori
2008-09-05 10:45   ` Ingo Molnar
2008-09-08 17:35     ` Ingo Molnar
2008-09-08 18:06       ` FUJITA Tomonori
2008-09-08 18:15         ` Ingo Molnar

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