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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 88AA0C38BF9 for ; Mon, 24 Feb 2020 21:57:10 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5255320CC7 for ; Mon, 24 Feb 2020 21:57:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HO1Qe1r+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5255320CC7 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-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GYtGVN5vK/W41Cp7Si9XZs4a7o7EpRA2nAsVKBYciFw=; b=HO1Qe1r+Htb5qd ROL2UbPYDLIwZI5RAmCnaVx2kqdz2hAUzjH4lfLRK+8yxu6Ofp1jmrDI3JeOJWfBK0so6unFN4XGh 1PnEocDAVmlDQx33LdPZKniTG7aP9SFtIz+1fE350xGTpjXZNpaqvRGw/xWEGlq/9HJA4U3oaKOv9 iDHt+iFvEd3wTqb51L7UlNhHTR/378EIwc0odrC7P2ELZ8unzJjXVSGRlQfhGYUkCX1D686bJ+l4V XCQVCiAiT+LR5JzQ01RjrMD4Oq/oRoEMGWuEQX3i7JIcgmqYJs4ADpNscquZZuWcgw8xpJh5H/kxC nij/yaUq4cXJSDUbL04A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6Liq-0006CG-J6; Mon, 24 Feb 2020 21:57:04 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j6Lin-0006Bi-5N for linux-arm-kernel@lists.infradead.org; Mon, 24 Feb 2020 21:57:02 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id C9FFA68B05; Mon, 24 Feb 2020 22:56:57 +0100 (CET) Date: Mon, 24 Feb 2020 22:56:57 +0100 From: Christoph Hellwig To: Ira Weiny Subject: Re: [PATCH 4/5] dma-direct: provide a arch_dma_clear_uncached hook Message-ID: <20200224215657.GA12618@lst.de> References: <20200224194446.690816-1-hch@lst.de> <20200224194446.690816-5-hch@lst.de> <20200224215327.GB11565@iweiny-DESK2.sc.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200224215327.GB11565@iweiny-DESK2.sc.intel.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200224_135701_355237_8A4936A7 X-CRM114-Status: UNSURE ( 7.80 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jonas Bonn , Mark Rutland , Will Deacon , linux-kernel@vger.kernel.org, Stefan Kristiansson , iommu@lists.linux-foundation.org, openrisc@lists.librecores.org, linux-arch@vger.kernel.org, Stafford Horne , Robin Murphy , Christoph Hellwig , linux-arm-kernel@lists.infradead.org, Marek Szyprowski Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Feb 24, 2020 at 01:53:28PM -0800, Ira Weiny wrote: > > + else if (IS_ENABLED(CONFIG_ARCH_HAS_DMA_CLEAR_UNCACHED)) > > + arch_dma_clear_uncached(cpu_addr, size); > > Isn't using arch_dma_clear_uncached() before patch 5 going to break > bisectability? Only if ARCH_HAS_DMA_CLEAR_UNCACHED is selected by anything, which only happens in patch 5. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel