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| author | Andre Przywara <andre.przywara@arm.com> | 2020-04-01 13:27:24 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-04-01 22:51:51 +0300 |
| commit | f44efca0493ddc1e8731047c234ec8e475943077 (patch) | |
| tree | 899f176f70b34d03b8cde5a86b2a74af1720fe4a /tools/testing/selftests/pidfd | |
| parent | 00bc5095547ef9878324167fe0c3e56f7b388159 (diff) | |
| download | linux-f44efca0493ddc1e8731047c234ec8e475943077.tar.xz | |
vfio: Ignore -ENODEV when getting MSI cookie
When we try to get an MSI cookie for a VFIO device, that can fail if
CONFIG_IOMMU_DMA is not set. In this case iommu_get_msi_cookie() returns
-ENODEV, and that should not be fatal.
Ignore that case and proceed with the initialisation.
This fixes VFIO with a platform device on the Calxeda Midway (no MSIs).
Fixes: f6810c15cf973f ("iommu/arm-smmu: Clean up early-probing workarounds")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'tools/testing/selftests/pidfd')
0 files changed, 0 insertions, 0 deletions