From mboxrd@z Thu Jan 1 00:00:00 1970 From: thomas@m3y3r.de (Thomas Meyer) Date: Thu, 21 Sep 2017 00:29:36 +0200 Subject: [PATCH 1/7] ARM: dma-mapping: Cocci spatch "vma_pages" In-Reply-To: <1505946334393-568186305-0-diffsplit-thomas@m3y3r.de> References: <1505946334393-568186305-0-diffsplit-thomas@m3y3r.de> Message-ID: <1505946334393-1455306870-1-diffsplit-thomas@m3y3r.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Use vma_pages function on vma object instead of explicit computation. Found by coccinelle spatch "api/vma_pages.cocci" Signed-off-by: Thomas Meyer --- diff -u -p a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -846,7 +846,7 @@ static int __arm_dma_mmap(struct device unsigned long attrs) { int ret; - unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + unsigned long nr_vma_pages = vma_pages(vma); unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT; unsigned long pfn = dma_to_pfn(dev, dma_addr); unsigned long off = vma->vm_pgoff;