Re: [PATCH v1 13/16] xen: swiotlb: return error code from xen_swiotlb_map_sg()

[PATCH v1 00/16] .map_sg() error cleanup · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 02/16] dma-direct: Return appropriate error code from dma_direct_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 03/16] iommu: Return full error code from iommu_map_sg[_atomic]() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 16/16] dma-mapping: Disallow .map_sg operations from returning zero on error · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 16/16] dma-mapping: Disallow .map_sg operations from returning zero on error · Christoph Hellwig <hch@lst.de> · 2021-07-16
Re: [PATCH v1 16/16] dma-mapping: Disallow .map_sg operations from returning zero on error · Robin Murphy <robin.murphy@arm.com> · 2021-07-16
Re: [PATCH v1 16/16] dma-mapping: Disallow .map_sg operations from returning zero on error · Logan Gunthorpe <logang@deltatee.com> · 2021-07-16
[PATCH v1 01/16] dma-mapping: Allow map_sg() ops to return negative error codes · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 01/16] dma-mapping: Allow map_sg() ops to return negative error codes · Christoph Hellwig <hch@lst.de> · 2021-07-16
[PATCH v1 13/16] xen: swiotlb: return error code from xen_swiotlb_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 13/16] xen: swiotlb: return error code from xen_swiotlb_map_sg() · Boris Ostrovsky <boris.ostrovsky@oracle.com> · 2021-07-19
[PATCH v1 10/16] s390/pci: return error code from s390_dma_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 10/16] s390/pci: return error code from s390_dma_map_sg() · Niklas Schnelle <schnelle@linux.ibm.com> · 2021-07-16
[PATCH v1 14/16] x86/amd_gart: return error code from gart_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 14/16] x86/amd_gart: return error code from gart_map_sg() · Christoph Hellwig <hch@lst.de> · 2021-07-16
Re: [PATCH v1 14/16] x86/amd_gart: return error code from gart_map_sg() · Robin Murphy <robin.murphy@arm.com> · 2021-07-16
[PATCH v1 12/16] parisc: return error code from .map_sg() ops · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 08/16] MIPS/jazzdma: return error code from jazz_dma_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 09/16] powerpc/iommu: return error code from .map_sg() ops · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 07/16] ia64/sba_iommu: return error code from sba_map_sg_attrs() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 06/16] ARM/dma-mapping: return error code from .map_sg() ops · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 05/16] alpha: return error code from alpha_pci_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 04/16] dma-iommu: Return error code from iommu_dma_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 04/16] dma-iommu: Return error code from iommu_dma_map_sg() · Christoph Hellwig <hch@lst.de> · 2021-07-16
[PATCH v1 11/16] sparc/iommu: return error codes from .map_sg() ops · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
[PATCH v1 15/16] dma-mapping: return error code from dma_dummy_map_sg() · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15
Re: [PATCH v1 00/16] .map_sg() error cleanup · "Russell King (Oracle)" <linux@armlinux.org.uk> · 2021-07-15
Re: [PATCH v1 00/16] .map_sg() error cleanup · Logan Gunthorpe <logang@deltatee.com> · 2021-07-15

From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Date: 2021-07-19 20:47:20
Also in: linux-alpha, linux-iommu, linux-mips, linux-s390, linuxppc-dev, lkml, sparclinux, xen-devel

On 7/15/21 12:45 PM, Logan Gunthorpe wrote:

From: Martin Oliveira <redacted>

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.


Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>




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