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Sat, 24 Jul 2021 03:50:33 +1000 (AEST) 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=pjSijkDDmu3vPdSgTQKQdclfdyX/CqsmmRRmSWCrGaw=; b=LSuxCbxfYApKFXQ8AgDo9tdTW+ qACHbjqbafKVLzWCuI3rtcs2e6WgSEYr8PwVrlp4KWjFXepNuEWOInVkpu9RN2yt81EVF6eiy0LTC Y2By7V77Ne5yKvu87vQSuV+1CGWO8wJmDlHlSeP+Y4k8K1VgdotJlr1CP7U6N+SlCotgM20SLWMmh Ko34yDRUgMm1jFTAIqaRTMTHxxBL0yAUNnVZnq8On76IboN+KPe81sLtRozcb4RdM5wqHxSK++6b2 sHgmAVy4CwTbO4mNcLgJzF5wa74lzZY3DkOA1MkiIAOKrGrnN5zZOE7SzSoZMpf9tsWKPArLsOFNX KjPrt9Zg==; 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 1m6zJe-0005Lh-Oe; Fri, 23 Jul 2021 11:50:31 -0600 Received: from gunthorp by cgy1-donard.priv.deltatee.com with local (Exim 4.92) (envelope-from ) id 1m6zJL-0005qw-NN; Fri, 23 Jul 2021 11:50:11 -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 Date: Fri, 23 Jul 2021 11:49:56 -0600 Message-Id: <20210723175008.22410-10-logang@deltatee.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210723175008.22410-1-logang@deltatee.com> References: <20210723175008.22410-1-logang@deltatee.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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, tsbogend@alpha.franken.de X-SA-Exim-Mail-From: gunthorp@deltatee.com Subject: [PATCH v2 09/21] MIPS/jazzdma: return error code from jazz_dma_map_sg() 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-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Bogendoerfer , Robin Murphy , Martin Oliveira , Stephen Bates , Logan Gunthorpe , Christoph Hellwig , Marek Szyprowski Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Martin Oliveira The .map_sg() op now expects an error code instead of zero on failure. vdma_alloc() may fail for different reasons, but since it only supports indicating an error via a return of DMA_MAPPING_ERROR, we coalesce the different reasons into -EIO as is documented on dma_map_sgtable(). Signed-off-by: Martin Oliveira Signed-off-by: Logan Gunthorpe Cc: Thomas Bogendoerfer --- arch/mips/jazz/jazzdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c index 461457b28982..eabddb89d221 100644 --- a/arch/mips/jazz/jazzdma.c +++ b/arch/mips/jazz/jazzdma.c @@ -552,7 +552,7 @@ static int jazz_dma_map_sg(struct device *dev, struct scatterlist *sglist, dir); sg->dma_address = vdma_alloc(sg_phys(sg), sg->length); if (sg->dma_address == DMA_MAPPING_ERROR) - return 0; + return -EIO; sg_dma_len(sg) = sg->length; } -- 2.20.1