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=-4.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 40607ECDE44 for ; Wed, 31 Oct 2018 06:12:12 +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 0E73720821 for ; Wed, 31 Oct 2018 06:12:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="nNt3dZtv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0E73720821 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+infradead-linux-riscv=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=jJYU8RebY/9HG/9LCtHEYh7UmVBMKiHFf7oPSTNDKKQ=; b=nNt3dZtvShiCGq Zo0G3IXN0FwZflihEN59QPspVlqNdoYaxQvjwUdZob6Kxc32sU87U4iyLempHnVxH4ZxtV86k0dOS tUe0sdjxyGPfWoRODVZiD+LKGzurF/1kDr0vwrwWhQhJou4s7W2XoGjbmwwb/ULZfH72a46+KWZnJ f6Ohrk9d6TpZ4xjM4EQrlUnLeB02jo4LNuZONnVLntNB9fV99IiiHlE7U3HvIhnmapilsP7M/jldn 6b/IAGcPtjzYl+6S8n+S3GTqyKNlj88IIJp8WNO5oWTqGsdhVOUviorHOuYCnws0gJ3vRodBe0wxw m8bLgHPvAf9nxe6LDKiA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gHjjd-00029T-P8; Wed, 31 Oct 2018 06:12:09 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gHjja-00028o-NB; Wed, 31 Oct 2018 06:12:06 +0000 Date: Tue, 30 Oct 2018 23:12:06 -0700 From: Christoph Hellwig To: Michael Forney Subject: Re: virtio-gpu without ARCH_HAS_SG_CHAIN Message-ID: <20181031061206.GA2828@infradead.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.2 (2017-12-15) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-riscv@lists.infradead.org, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org Message-ID: <20181031061206.gvGYY1Rq_mWNUNM625X3guyghL8xwoUxi_OgqhS7PNg@z> There is no good reason to not define ARCH_HAS_SG_CHAIN. To fix your immediate problem just select it from riscv, as riscv uses the generic dma-direct code which is chained S/G safe by definition. And if you want to get extra points do a quick audit of the remaning iommu drivers on architectures that don't define it so that we can kill the symbol. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv