Commit ebfaf2bc authored by Alex Williamson's avatar Alex Williamson Committed by Will Deacon
Browse files

iommu/vt-d: Restore IOMMU_CAP_CACHE_COHERENCY 



In removing IOMMU_CAP_DEFERRED_FLUSH, the below referenced commit
was over-eager in removing the return, resulting in the test for
IOMMU_CAP_CACHE_COHERENCY falling through to an irrelevant option.

Restore dropped return.

Fixes: 1c18a121 ("iommu/dma: Always allow DMA-FQ when iommupt provides the iommu_domain")
Signed-off-by: default avatarAlex Williamson <alex.williamson@nvidia.com>
Reviewed-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 1c18a121

drivers/iommu/intel/iommu.c

+1 −0
Original line number Diff line number Diff line
@@ -3212,6 +3212,7 @@ static bool intel_iommu_capable(struct device *dev, enum iommu_cap cap) 


	switch (cap) {

	case IOMMU_CAP_CACHE_COHERENCY:

		return true;

	case IOMMU_CAP_PRE_BOOT_PROTECTION:

		return dmar_platform_optin();

	case IOMMU_CAP_ENFORCE_CACHE_COHERENCY: