kobject: make kobject_get_ownership() take a constant kobject *

The call, kobject_get_ownership(), does not modify the kobject passed
into it, so make it const.  This propagates down into the kobj_type
function callbacks so make the kobject passed into them also const,
ensuring that nothing in the kobject is being changed here.

This helps make it more obvious what calls and callbacks do, and do not,
modify structures passed to them.

Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Anna Schumaker <anna@kernel.org>
Cc: Roopa Prabhu <roopa@nvidia.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: linux-nfs@vger.kernel.org
Cc: bridge@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20221121094649.1556002-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/kobject.c b/lib/kobject.c
index ba1017cd67d1..26e744a46d24 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -45,7 +45,7 @@ const void *kobject_namespace(struct kobject *kobj)
  * representation of given kobject. Normally used to adjust ownership of
  * objects in a container.
  */
-void kobject_get_ownership(struct kobject *kobj, kuid_t *uid, kgid_t *gid)
+void kobject_get_ownership(const struct kobject *kobj, kuid_t *uid, kgid_t *gid)
 {
 	*uid = GLOBAL_ROOT_UID;
 	*gid = GLOBAL_ROOT_GID;
@@ -907,7 +907,7 @@ static void kset_release(struct kobject *kobj)
 	kfree(kset);
 }
 
-static void kset_get_ownership(struct kobject *kobj, kuid_t *uid, kgid_t *gid)
+static void kset_get_ownership(const struct kobject *kobj, kuid_t *uid, kgid_t *gid)
 {
 	if (kobj->parent)
 		kobject_get_ownership(kobj->parent, uid, gid);