From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1427215AbdDVBTH (ORCPT ); Fri, 21 Apr 2017 21:19:07 -0400 Received: from mail-it0-f66.google.com ([209.85.214.66]:32976 "EHLO mail-it0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1427199AbdDVBTE (ORCPT ); Fri, 21 Apr 2017 21:19:04 -0400 From: Geliang Tang To: Dan Williams , Vinod Koul , Andrew Morton , Ingo Molnar Cc: Geliang Tang , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] dma-debug: use offset_in_page() macro Date: Sat, 22 Apr 2017 09:18:05 +0800 Message-Id: X-Mailer: git-send-email 2.9.3 In-Reply-To: <5b8a96f45462de15e1713b8022b0e72d4f2231f6.1492757182.git.geliangtang@gmail.com> References: <5b8a96f45462de15e1713b8022b0e72d4f2231f6.1492757182.git.geliangtang@gmail.com> In-Reply-To: <5b8a96f45462de15e1713b8022b0e72d4f2231f6.1492757182.git.geliangtang@gmail.com> References: <5b8a96f45462de15e1713b8022b0e72d4f2231f6.1492757182.git.geliangtang@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use offset_in_page() macro instead of open-coding. Signed-off-by: Geliang Tang --- lib/dma-debug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/dma-debug.c b/lib/dma-debug.c index b157b46..cd5a5a4 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -1502,7 +1502,7 @@ void debug_dma_alloc_coherent(struct device *dev, size_t size, entry->type = dma_debug_coherent; entry->dev = dev; entry->pfn = page_to_pfn(virt_to_page(virt)); - entry->offset = (size_t) virt & ~PAGE_MASK; + entry->offset = offset_in_page(virt); entry->size = size; entry->dev_addr = dma_addr; entry->direction = DMA_BIDIRECTIONAL; @@ -1518,7 +1518,7 @@ void debug_dma_free_coherent(struct device *dev, size_t size, .type = dma_debug_coherent, .dev = dev, .pfn = page_to_pfn(virt_to_page(virt)), - .offset = (size_t) virt & ~PAGE_MASK, + .offset = offset_in_page(virt), .dev_addr = addr, .size = size, .direction = DMA_BIDIRECTIONAL, -- 2.9.3