Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752098AbdITWk0 (ORCPT ); Wed, 20 Sep 2017 18:40:26 -0400 Received: from www17.your-server.de ([213.133.104.17]:39201 "EHLO www17.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751968AbdITWkX (ORCPT ); Wed, 20 Sep 2017 18:40:23 -0400 Subject: [PATCH 1/7] ARM: dma-mapping: Cocci spatch "vma_pages" From: Thomas Meyer To: linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Message-ID: <1505946334393-1455306870-1-diffsplit-thomas@m3y3r.de> References: <1505946334393-568186305-0-diffsplit-thomas@m3y3r.de> In-Reply-To: <1505946334393-568186305-0-diffsplit-thomas@m3y3r.de> Date: Thu, 21 Sep 2017 00:29:36 +0200 X-Mailer: Evolution 3.22.6-1 Content-Transfer-Encoding: 7bit X-Authenticated-Sender: thomas@m3y3r.de Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 669 Lines: 18 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;