From patchwork Thu Jul 29 20:15:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Logan Gunthorpe X-Patchwork-Id: 12409761 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=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 ABDA6C4320A for ; Thu, 29 Jul 2021 20:25:27 +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 772FC6023E for ; Thu, 29 Jul 2021 20:25:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 772FC6023E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=deltatee.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Subject:MIME-Version:References: In-Reply-To:Message-Id:Date:Cc:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=Y7FEzIGqOJaesKq4xIZqR0nIeUsoyV3ckrldPLGS+4g=; b=Ae7rxRCrGhBSRh4Hu6+QVgY3ZJ 9Ox2FpF2lhL/G8mhE9dr1OtWLqPf6IzVHrq6Vg2AFqi/1+6xz97AFE54z1Kx8mzxo0WAoUahPTtqk 2cy/s/i0Onqm/+ciwegalNHO/+kXmuR2Cy0b7Ohr/63tTz6+nrCFaKtXYjsawMa6Mff/pgKFZwjV6 ztYdeUtPVfRuZbXrv8FYr3pJuheT7VjY5dn9kgoemg4fnO7Muvu4Uca0voS9sOkKTiu3kcC422Fy5 Bu8EhT3yge3Q8Nf3u/4/h+l+sir23l9IiCP7JXlU5MokXL7alD/8tdXeulZb4olMwQZbVXiYc+m0g GsOOurkA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m9CZ9-005sNe-N1; Thu, 29 Jul 2021 20:23:40 +0000 Received: from ale.deltatee.com ([204.191.154.188]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m9CRf-005pEu-FY for linux-arm-kernel@lists.infradead.org; Thu, 29 Jul 2021 20:15:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=deltatee.com; s=20200525; h=Subject:MIME-Version:References:In-Reply-To: Message-Id:Date:Cc:To:From:content-disposition; bh=fB/z94v+Zqx6MpbGppBoixHLzAQycdh8k5f4rRFmrO0=; b=Q/yOit+wzn0WTLkgHijTX4TkhO 8+eoLaiFE1mafvZ/q4c2J8dgiHrEu7XfRLxOMtaCE2yip7zxl1sE/WyHaFGuCUlAsojHu3Yn1olhc F6lgtyAVdYp7At6SrmssFkRyMNq/7Y8eEHEoLDTW3SL2JS9ATF53ewVI4ZZgHkeKeWzP92SM7FH34 eTt7FT+3sGYlOVErWUL9BBZ81w65udV5r7T9L+Bim7OvBQFE+Z+0NIEO7fp0Dm/dAqjBx6Z8qCOHg eaGZJCGwxHsUZUd8FtgHTl3bnmB6UbQ2wz20VgRmFykYHYTmvncDFTw4bL71o7DIitalfyY4Hk8F1 0BLcIVQA==; Received: from cgy1-donard.priv.deltatee.com ([172.16.1.31]) by ale.deltatee.com with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m9CRd-0008VM-3g; Thu, 29 Jul 2021 14:15:54 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.92) (envelope-from ) id 1m9CRV-0001UB-QR; Thu, 29 Jul 2021 14:15:45 -0600 From: Logan Gunthorpe To: linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, iommu@lists.linux-foundation.org, linux-parisc@vger.kernel.org, xen-devel@lists.xenproject.org Cc: Christoph Hellwig , Marek Szyprowski , Robin Murphy , Stephen Bates , Martin Oliveira , Logan Gunthorpe , "James E.J. Bottomley" , Helge Deller Date: Thu, 29 Jul 2021 14:15:34 -0600 Message-Id: <20210729201539.5602-17-logang@deltatee.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210729201539.5602-1-logang@deltatee.com> References: <20210729201539.5602-1-logang@deltatee.com> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 172.16.1.31 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, linux-mips@vger.kernel.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-parisc@vger.kernel.org, xen-devel@lists.xenproject.org, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, sbates@raithlin.com, martin.oliveira@eideticom.com, logang@deltatee.com, James.Bottomley@HansenPartnership.com, deller@gmx.de X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH v3 16/21] parisc: return error code from .map_sg() ops X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210729_131555_605174_CD0657D3 X-CRM114-Status: GOOD ( 12.75 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Martin Oliveira The .map_sg() op now expects an error code instead of zero on failure. Return -EINVAL if the ioc cannot be obtained. Signed-off-by: Martin Oliveira Signed-off-by: Logan Gunthorpe Cc: "James E.J. Bottomley" Cc: Helge Deller --- drivers/parisc/ccio-dma.c | 2 +- drivers/parisc/sba_iommu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index b5f9ee81a46c..452e72b7bd01 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -918,7 +918,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, BUG_ON(!dev); ioc = GET_IOC(dev); if (!ioc) - return 0; + return -EINVAL; DBG_RUN_SG("%s() START %d entries\n", __func__, nents); diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index dce4cdf786cd..e60690d38d67 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -947,7 +947,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, ioc = GET_IOC(dev); if (!ioc) - return 0; + return -EINVAL; /* Fast path single entry scatterlists. */ if (nents == 1) {