On Thu, Sep 22, 2022 at 01:54:20AM -0700, Nicolin Chen wrote:

Following the new rules in include/linux/iommu.h kdocs, EINVAL now can be
used to indicate that domain and device are incompatible by a caller that
treats it as a soft failure and tries attaching to another domain.

On the other hand, there are ->attach_dev callback functions returning it
for obvious device-specific errors. They will result in some inefficiency
in the caller handling routine.

Update these places to corresponding errnos following the new rules.

Reviewed-by: Jean-Philippe Brucker <redacted>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <redacted>
---
 drivers/iommu/fsl_pamu.c        | 2 +-
 drivers/iommu/fsl_pamu_domain.c | 4 ++--
 drivers/iommu/intel/pasid.c     | 6 ++++--
 drivers/iommu/mtk_iommu.c       | 2 +-
 drivers/iommu/omap-iommu.c      | 4 ++--
 drivers/iommu/virtio-iommu.c    | 2 +-
 6 files changed, 11 insertions(+), 9 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason

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