iommu: Remove iommu_group_get_by_id()

This is never called.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/0-v1-60bbc66d7e92+24-rm_iommu_get_by_id_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 435fc90..f35058f 100644 (file)
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -882,35 +882,6 @@ struct iommu_group *iommu_group_alloc(void)
 }
 EXPORT_SYMBOL_GPL(iommu_group_alloc);
 
-struct iommu_group *iommu_group_get_by_id(int id)
-{
-       struct kobject *group_kobj;
-       struct iommu_group *group;
-       const char *name;
-
-       if (!iommu_group_kset)
-               return NULL;
-
-       name = kasprintf(GFP_KERNEL, "%d", id);
-       if (!name)
-               return NULL;
-
-       group_kobj = kset_find_obj(iommu_group_kset, name);
-       kfree(name);
-
-       if (!group_kobj)
-               return NULL;
-
-       group = container_of(group_kobj, struct iommu_group, kobj);
-       BUG_ON(group->id != id);
-
-       kobject_get(group->devices_kobj);
-       kobject_put(&group->kobj);
-
-       return group;
-}
-EXPORT_SYMBOL_GPL(iommu_group_get_by_id);
-
 /**
  * iommu_group_get_iommudata - retrieve iommu_data registered for a group
  * @group: the group

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index c892e06..7dbdd13 100644 (file)
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -460,7 +460,6 @@ extern bool iommu_present(struct bus_type *bus);
 extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap);
 extern bool iommu_group_has_isolated_msi(struct iommu_group *group);
 extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus);
-extern struct iommu_group *iommu_group_get_by_id(int id);
 extern void iommu_domain_free(struct iommu_domain *domain);
 extern int iommu_attach_device(struct iommu_domain *domain,
                               struct device *dev);
@@ -746,11 +745,6 @@ static inline struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
        return NULL;
 }
 
-static inline struct iommu_group *iommu_group_get_by_id(int id)
-{
-       return NULL;
-}
-
 static inline void iommu_domain_free(struct iommu_domain *domain)
 {
 }