From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751664AbdKVPVB (ORCPT ); Wed, 22 Nov 2017 10:21:01 -0500 Received: from mail-lf0-f66.google.com ([209.85.215.66]:42305 "EHLO mail-lf0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751259AbdKVPVA (ORCPT ); Wed, 22 Nov 2017 10:21:00 -0500 X-Google-Smtp-Source: AGs4zMbeDqNit2Hb0F2mRWaj1lqR4jvgydrFjaCB2k72ppcadGHZ5G3N6VI2ohpg/WYJ0K3wo9A/eA== From: Vasyl Gomonovych To: linux@armlinux.org.uk, jroedel@suse.de, vladimir.murzin@arm.com, linux-arm-kernel@lists.infradead.org, sricharan@codeaurora.org Cc: linux-kernel@vger.kernel.org, gomonovych@gmail.com Subject: [PATCH] ARM: dma-mapping: Use vma_pages helper Date: Wed, 22 Nov 2017 16:20:50 +0100 Message-Id: <1511364050-912-1-git-send-email-gomonovych@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use vma_pages function on vma object instead of explicit computation. arch/arm/mm/dma-mapping.c:849:36-42: WARNING: Consider using vma_pages helper on vma Generated by: scripts/coccinelle/api/vma_pages.cocci Signed-off-by: Vasyl Gomonovych --- arch/arm/mm/dma-mapping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index fcf1473d6fed..855427620b01 100644 --- 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 *dev, struct vm_area_struct *vma, 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; -- 1.9.1