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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=v712SqpSEckB3f7bRn5BvRO69pOYG6tOz5ojT8LD73A=; b=ZaXCnoVebjGK2r9ONanYW8xyoE d/aBn+IIZsuZoEFaEqgbPSqT+vKCb9iPs53KbB9p5heckwbq9FJLYYzsPbEZwjA/oSwzmCwNan9H3 d9wymXNRdMM7Ogi/JqBqg/zX+rqVe5ZWliU1yjk6OjAaFLsf+VzCAITHxjm0E3UUFPmqwThLi5jAB +1kSzs8ggjovcct44c4uh2C7M19dmwFVCr4t5dmJeG4ve17QFBYfsX2vNPY2R80TryX7yClClbhiB Mm7YL8s8QqWa6kWxFLWxSs34EoLz8X9XKPkRNOdD7KpEJAmkkZzyIplL0KzNfjb9/FjQ6XGMfEGyq 3OcuabnQ==; 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 , Konrad Rzeszutek Wilk , Boris Ostrovsky , Juergen Gross , Stefano Stabellini Date: Thu, 15 Jul 2021 10:45:41 -0600 Message-Id: <20210715164544.6827-14-logang@deltatee.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210715164544.6827-1-logang@deltatee.com> References: <20210715164544.6827-1-logang@deltatee.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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, konrad.wilk@oracle.com, boris.ostrovsky@oracle.com, jgross@suse.com, sstabellini@kernel.org X-SA-Exim-Mail-From: gunthorp@deltatee.com X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on ale.deltatee.com X-Spam-Level: X-Spam-Status: No, score=-6.7 required=5.0 tests=ALL_TRUSTED,BAYES_00, MYRULES_NO_TEXT autolearn=no autolearn_force=no version=3.4.2 Subject: [PATCH v1 13/16] xen: swiotlb: return error code from xen_swiotlb_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-ZohoMail-DKIM: pass (identity @deltatee.com) X-ZM-MESSAGEID: 1626367597910100001 Content-Type: text/plain; charset="utf-8" From: Martin Oliveira The .map_sg() op now expects an error code instead of zero on failure. xen_swiotlb_map_sg() may only fail if xen_swiotlb_map_page() fails, but xen_swiotlb_map_page() only supports returning errors as DMA_MAPPING_ERROR. So coalesce all errors into EINVAL. Signed-off-by: Martin Oliveira Signed-off-by: Logan Gunthorpe Cc: Konrad Rzeszutek Wilk Cc: Boris Ostrovsky Cc: Juergen Gross Cc: Stefano Stabellini Reviewed-by: Boris Ostrovsky --- drivers/xen/swiotlb-xen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 24d11861ac7d..b5707127c9d7 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -509,7 +509,7 @@ xen_swiotlb_map_sg(struct device *dev, struct scatterli= st *sgl, int nelems, out_unmap: xen_swiotlb_unmap_sg(dev, sgl, i, dir, attrs | DMA_ATTR_SKIP_CPU_SYNC); sg_dma_len(sgl) =3D 0; - return 0; + return -EINVAL; } =20 static void --=20 2.20.1