From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) by kanga.kvack.org (Postfix) with ESMTP id E74496B40A9 for ; Mon, 26 Nov 2018 01:45:08 -0500 (EST) Received: by mail-oi1-f197.google.com with SMTP id t184so9705468oih.22 for ; Sun, 25 Nov 2018 22:45:08 -0800 (PST) Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com. [217.140.101.70]) by mx.google.com with ESMTP id o62si8495314oif.67.2018.11.25.22.45.07 for ; Sun, 25 Nov 2018 22:45:07 -0800 (PST) Subject: Re: [PATCH] mm: Replace all open encodings for NUMA_NO_NODE References: <1542966856-12619-1-git-send-email-anshuman.khandual@arm.com> <20181124140554.GG3175@vkoul-mobl.Dlink> From: Anshuman Khandual Message-ID: <5228bcdb-b140-a86a-6c9c-488f1a723353@arm.com> Date: Mon, 26 Nov 2018 12:15:04 +0530 MIME-Version: 1.0 In-Reply-To: <20181124140554.GG3175@vkoul-mobl.Dlink> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Vinod Koul Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-media@vger.kernel.org, iommu@lists.linux-foundation.org, linux-rdma@vger.kernel.org, dmaengine@vger.kernel.org, linux-block@vger.kernel.org, sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-ia64@vger.kernel.org, linux-alpha@vger.kernel.org, akpm@linux-foundation.org, jiangqi903@gmail.com, hverkuil@xs4all.nl On 11/24/2018 07:35 PM, Vinod Koul wrote: > On 23-11-18, 15:24, Anshuman Khandual wrote: > >> --- a/drivers/dma/dmaengine.c >> +++ b/drivers/dma/dmaengine.c >> @@ -386,7 +386,8 @@ EXPORT_SYMBOL(dma_issue_pending_all); >> static bool dma_chan_is_local(struct dma_chan *chan, int cpu) >> { >> int node = dev_to_node(chan->device->dev); >> - return node == -1 || cpumask_test_cpu(cpu, cpumask_of_node(node)); >> + return node == NUMA_NO_NODE || >> + cpumask_test_cpu(cpu, cpumask_of_node(node)); >> } > > I do not see dev_to_node being updated first, that returns -1 so I would > prefer to check for -1 unless it return NUMA_NO_NODE Sure will update dev_to_node() to return NUMA_NO_NODE as well.