arm_smmu_invs_for_each_cmp
arm_smmu_invs_for_each_cmp(invs, i, to_merge, j, cmp)
arm_smmu_invs_for_each_cmp(invs, i, to_merge, j, cmp) {
arm_smmu_invs_for_each_cmp(invs, i, to_unref, j, cmp) {