diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 54465e041155..91981c8a9614 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -488,6 +488,10 @@ static void setup_aliases(struct amd_iommu *iommu, struct device *dev)
 	clone_aliases(iommu, dev);
 }
 
+/*
+ * We keep dev_data around for unplugged devices and reuse it when the
+ * device is re-plugged - not doing so would introduce a ton of races.
+ */
 static struct iommu_dev_data *find_dev_data(struct amd_iommu *iommu, u16 devid)
 {
 	struct iommu_dev_data *dev_data;
@@ -2551,18 +2555,6 @@ static struct iommu_device *amd_iommu_probe_device(struct device *dev)
 	return iommu_dev;
 }
 
-static void amd_iommu_release_device(struct device *dev)
-{
-	struct iommu_dev_data *dev_data = dev_iommu_priv_get(dev);
-
-	WARN_ON(dev_data->domain);
-
-	/*
-	 * We keep dev_data around for unplugged devices and reuse it when the
-	 * device is re-plugged - not doing so would introduce a ton of races.
-	 */
-}
-
 static struct iommu_group *amd_iommu_device_group(struct device *dev)
 {
 	if (dev_is_pci(dev))
@@ -3266,7 +3258,6 @@ const struct iommu_ops amd_iommu_ops = {
 	.domain_alloc_paging_flags = amd_iommu_domain_alloc_paging_flags,
 	.domain_alloc_sva = amd_iommu_domain_alloc_sva,
 	.probe_device = amd_iommu_probe_device,
-	.release_device = amd_iommu_release_device,
 	.device_group = amd_iommu_device_group,
 	.get_resv_regions = amd_iommu_get_resv_regions,
 	.is_attach_deferred = amd_iommu_is_attach_deferred,