It can be replaced by of_iommu_list(in of_iommu.c).
Signed-off-by: Zhen Lei <thunder.leiz...@huawei.com>
---
drivers/iommu/arm-smmu-v3.c | 22 ++--------------------
1 file changed, 2 insertions(+), 20 deletions(-)
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index c569539..39c55f6 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -604,10 +604,6 @@ struct arm_smmu_domain {
struct iommu_domain domain;
};
-/* Our list of SMMU instances */
-static DEFINE_SPINLOCK(arm_smmu_devices_lock);
-static LIST_HEAD(arm_smmu_devices);
-
struct arm_smmu_option_prop {
u32 opt;
const char *prop;
@@ -2675,11 +2671,6 @@ static int arm_smmu_device_dt_probe(struct
platform_device *pdev)
if (ret)
goto out_free_structures;
- /* Record our private device structure */
- INIT_LIST_HEAD(&smmu->list);
- spin_lock(&arm_smmu_devices_lock);
- list_add(&smmu->list, &arm_smmu_devices);
- spin_unlock(&arm_smmu_devices_lock);
platform_set_drvdata(pdev, smmu);
of_iommu_set_ops(smmu->dev->of_node, &arm_smmu_ops);
@@ -2692,19 +2683,10 @@ out_free_structures:
static int arm_smmu_device_remove(struct platform_device *pdev)
{
- struct arm_smmu_device *curr, *smmu = NULL;
+ struct arm_smmu_device *smmu;
struct device *dev = &pdev->dev;
- spin_lock(&arm_smmu_devices_lock);
- list_for_each_entry(curr, &arm_smmu_devices, list) {
- if (curr->dev == dev) {
- smmu = curr;
- list_del(&smmu->list);
- break;
- }
- }
- spin_unlock(&arm_smmu_devices_lock);
-
+ smmu = find_smmu_by_node(dev->of_node);
if (!smmu)
return -ENODEV;
--
1.8.0
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