From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06789C43142 for ; Tue, 31 Jul 2018 08:03:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6626920870 for ; Tue, 31 Jul 2018 08:03:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6626920870 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729764AbeGaJmH (ORCPT ); Tue, 31 Jul 2018 05:42:07 -0400 Received: from verein.lst.de ([213.95.11.211]:56121 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728750AbeGaJmH (ORCPT ); Tue, 31 Jul 2018 05:42:07 -0400 Received: by newverein.lst.de (Postfix, from userid 2407) id 36AF768D40; Tue, 31 Jul 2018 10:07:23 +0200 (CEST) Date: Tue, 31 Jul 2018 10:07:23 +0200 From: Christoph Hellwig To: Bjorn Helgaas Cc: Christoph Hellwig , linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Joerg Roedel Subject: Re: [PATCH] PCI: call dma_debug_add_bus for pci_bus_type in common code Message-ID: <20180731080723.GA23303@lst.de> References: <20180730073842.16092-1-hch@lst.de> <20180730211713.GA45322@bhelgaas-glaptop.roam.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180730211713.GA45322@bhelgaas-glaptop.roam.corp.google.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 30, 2018 at 04:17:13PM -0500, Bjorn Helgaas wrote: > [+cc Joerg] > > On Mon, Jul 30, 2018 at 09:38:42AM +0200, Christoph Hellwig wrote: > > There is nothing arch specific about PCI or dma-debug, so move this > > call to common code just after registering the bus type. > > I assume that previously, even if the user set CONFIG_DMA_API_DEBUG=y > we only got PCI DMA debug on powerpc, sh, and x86. And after this > patch, we'll get PCI DMA debug on *all* arches? Yes. Note that this only covers the actual bus related part, that is warning about outstanding dma mappings on unload. The rest of the dma api debugging already is entirely generic.