Merge tag 'iommu-fix-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fix from Joerg Roedel:

 - Fix boot regression for Sapphire Rapids with Intel VT-d driver

* tag 'iommu-fix-v6.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu: Avoid unnecessary cache invalidations

drivers/iommu/iommu.c

@@ -1108,6 +1108,7 @@ static int iommu_create_device_direct_mappings(struct iommu_domain *domain,
 
 	}
 
+	if (!list_empty(&mappings) && iommu_is_dma_domain(domain))
 		iommu_flush_iotlb_all(domain);
 
 out: