Commits
Will Deacon committed 7314ca8699e
iommu/arm-smmu-v3: Don't issue CMD_SYNC for zero-length invalidations Calling arm_smmu_tlb_inv_range() with a size of zero, perhaps due to an empty 'iommu_iotlb_gather' structure, should be a NOP. Elide the CMD_SYNC when there is no invalidation to be performed. Signed-off-by: Will Deacon <will@kernel.org>