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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 F343DC07E95 for ; Fri, 16 Jul 2021 06:29:37 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 8ACCE613EB for ; Fri, 16 Jul 2021 06:29:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8ACCE613EB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 55223400D7; Fri, 16 Jul 2021 06:29:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9Y-S1F6zqlQn; Fri, 16 Jul 2021 06:29:36 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id 51F714051F; Fri, 16 Jul 2021 06:29:36 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 155D1C0010; Fri, 16 Jul 2021 06:29:36 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3972DC000E for ; Fri, 16 Jul 2021 06:29:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 1AFE384346 for ; Fri, 16 Jul 2021 06:29:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mLZKtFbQ1oVu for ; Fri, 16 Jul 2021 06:29:34 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.osuosl.org (Postfix) with ESMTPS id D09FF842AE for ; Fri, 16 Jul 2021 06:29:33 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id DAEDE67373; Fri, 16 Jul 2021 08:29:28 +0200 (CEST) Date: Fri, 16 Jul 2021 08:29:28 +0200 From: Christoph Hellwig To: Logan Gunthorpe Subject: Re: [PATCH v1 01/16] dma-mapping: Allow map_sg() ops to return negative error codes Message-ID: <20210716062928.GA13345@lst.de> References: <20210715164544.6827-1-logang@deltatee.com> <20210715164544.6827-2-logang@deltatee.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210715164544.6827-2-logang@deltatee.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: linux-s390@vger.kernel.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org, Robin Murphy , Martin Oliveira , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, Stephen Bates , linuxppc-dev@lists.ozlabs.org, Christoph Hellwig , linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Thu, Jul 15, 2021 at 10:45:29AM -0600, Logan Gunthorpe wrote: > + * dma_map_sgtable() will return the error code returned and convert > + * a zero return (for legacy implementations) into -EINVAL. > + * > + * dma_map_sg() will always return zero on any negative or zero > + * return to satisfy its own calling convention. > */ I don't think this belongs here. > +EXPORT_SYMBOL(dma_map_sgtable); EXPORT_SYMBOL_GPL, please. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu