Message-ID: <4FC5659D.6040805@gmail.com>
Date: Tue, 29 May 2012 20:11:09 -0400
From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
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To: Marek Szyprowski <m.szyprowski@samsung.com>
CC: linux-arm-kernel@lists.infradead.org, linaro-mm-sig@lists.linaro.org,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
        Chunsang Jeong <chunsang.jeong@linaro.org>,
        Krishna Reddy <vdumpa@nvidia.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Hiroshi Doyu <hdoyu@nvidia.com>, Subash Patel <subashrp@gmail.com>,
        kosaki.motohiro@gmail.com
Subject: Re: [PATCHv2 4/4] ARM: dma-mapping: remove custom consistent dma
 region
References: <1337252085-22039-1-git-send-email-m.szyprowski@samsung.com> <1337252085-22039-5-git-send-email-m.szyprowski@samsung.com>
In-Reply-To: <1337252085-22039-5-git-send-email-m.szyprowski@samsung.com>
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>   static void *
>   __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot,
>   	const void *caller)
>   {
> -	struct arm_vmregion *c;
> -	size_t align;
> -	int bit;
> +	struct vm_struct *area;
> +	unsigned long addr;
> 
> -	if (!consistent_pte) {
> -		printk(KERN_ERR "%s: not initialised\n", __func__);
> +	area = get_vm_area_caller(size, VM_DMA | VM_USERMAP, caller);

In this patch, VM_DMA is only used here. So, is this no effect?

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