This reverts commit aa16bea929ae
("iommu: Add a function to find an iommu group by id")
as the iommu_group_get_by_id() helper has never been used
and it is unlikely it will in foreseeable future. Dead code
is broken code.
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
---
drivers/iommu/iommu.c | 29 -----------------------------
include/linux/iommu.h | 1 -
2 files changed, 30 deletions(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index b06d935..d2f5efe 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -217,35 +217,6 @@ 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 a35fb8b..93c69fa 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -215,7 +215,6 @@ extern int bus_set_iommu(struct bus_type *bus, const struct
iommu_ops *ops);
extern bool iommu_present(struct bus_type *bus);
extern bool iommu_capable(struct bus_type *bus, enum iommu_cap cap);
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);
--
2.5.0.rc3
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