[RFC PATCH v2 8/9] iommu/arm-smmu-v3: check for domain initialization using pgtbl_ops

[Michael Shavit]

In order to remove smmu_domain->smmu in the next commit

Signed-off-by: Michael Shavit <mshavit@xxxxxxxxxx>
---

(no changes since v1)

 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 7c9897702bcde..9f8b701771fc3 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2894,7 +2894,7 @@ static int arm_smmu_enable_nesting(struct iommu_domain *domain)
 	int ret = 0;
 
 	mutex_lock(&smmu_domain->init_mutex);
-	if (smmu_domain->smmu)
+	if (smmu_domain->pgtbl_ops)
 		ret = -EPERM;
 	else
 		smmu_domain->stage = ARM_SMMU_DOMAIN_NESTED;
-- 
2.42.0.rc1.204.g551eb34607-goog