[RFC PATCH v1 7/8] iommu/arm-smmu-v3: check for domain initialization using pgtbl_ops

Michael Shavit
2023-08-17T18:24:07Z

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

Signed-off-by: Michael Shavit <mshavit@google.com>
---

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 7f88b2b19cbe5..c9f89f4f47721 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2918,7 +2918,7 @@ 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