[PATCH v1 3/6] iommu/exynos-iommu: Set release_domain to exynos_identity_domain

Nicolin Chen
2025-10-12T23:58:07Z

Following a coming core change to pass in the old domain pointer into the
attach_dev op and its callbacks, exynos_iommu_identity_attach() will need
this new argument too, which the release_device op doesn't provide.

Instead, the core provides a release_domain to attach to the device prior
to invoking the release_device callback. Thus, simply use that.

Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
---
drivers/iommu/exynos-iommu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index b6edd178fe25e..0857519ca7188 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1429,8 +1429,6 @@ static void exynos_iommu_release_device(struct device *dev)
struct exynos_iommu_owner *owner = dev_iommu_priv_get(dev);
struct sysmmu_drvdata *data;

- WARN_ON(exynos_iommu_identity_attach(&exynos_identity_domain, dev));
-
list_for_each_entry(data, &owner->controllers, owner_node)
device_link_del(data->link);
}
@@ -1476,6 +1474,7 @@ static int exynos_iommu_of_xlate(struct device *dev,

static const struct iommu_ops exynos_iommu_ops = {
.identity_domain = &exynos_identity_domain,
+ .release_domain = &exynos_identity_domain,
.domain_alloc_paging = exynos_iommu_domain_alloc_paging,
.device_group = generic_device_group,
.probe_device = exynos_iommu_probe_device,
--
2.43.0