Re: [PATCH v5 5/6] iommu: Use EINVAL for incompatible device/domain in ->attach_dev

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On Thu, Sep 22, 2022 at 01:54:34AM -0700, Nicolin Chen wrote:
> Following the new rules in include/linux/iommu.h kdocs, update all drivers
> ->attach_dev callback functions to return EINVAL in the failure paths that
> are related to domain incompatibility.
> 
> Also, drop adjacent error prints to prevent a kernel log spam.
> 
> Reviewed-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
> Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>
> ---
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 11 +----------
>  drivers/iommu/arm/arm-smmu/arm-smmu.c       |  3 ---
>  drivers/iommu/arm/arm-smmu/qcom_iommu.c     |  7 +------
>  drivers/iommu/intel/iommu.c                 | 10 +++-------
>  drivers/iommu/ipmmu-vmsa.c                  |  2 --
>  drivers/iommu/omap-iommu.c                  |  2 +-
>  drivers/iommu/sprd-iommu.c                  |  4 +---
>  drivers/iommu/tegra-gart.c                  |  2 +-
>  drivers/iommu/virtio-iommu.c                |  3 +--
>  9 files changed, 9 insertions(+), 35 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason



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