> From: Nicolin Chen <nicolinc@xxxxxxxxxx> > Sent: Friday, May 9, 2025 11:02 AM > > When an IOMMU driver calls iommufd_viommu_alloc(), it must pass in an > ictx > pointer as the underlying _iommufd_object_alloc() helper function requires > that to allocate a new object. However, neither the iommufd_viommu_alloc() > nor its underlying _iommufd_object_alloc() saves the ictx in the allocated > viommu object, although viommu could hold an ictx pointer. > > When the IOMMU driver wants to use another iommufd function passing in > the > allocated viommu, it could have avoided passing in the ictx pointer again, > if viommu->ictx is valid. > > Save ictx to viommu->ictx in the iommufd_viommu_alloc(), in order to ease > a new vIOMMU-based helper that would then get the ictx from viommu->ictx. > > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
