lsm: add/tweak function header comment blocks in lsm_init.c

Add function header comments for lsm_static_call_init() and
early_security_init(), tweak the existing comment block for
security_add_hooks().

Reviewed-by: Casey Schaufler <[e-mail]>
Reviewed-by: John Johansen <[e-mail]>
Signed-off-by: Paul Moore <[e-mail]>

security/lsm_init.c

···
 	}
 }
 
+/**
+ * lsm_static_call_init - Initialize a LSM's static calls
+ * @hl: LSM hook list
+ */
 static void __init lsm_static_call_init(struct security_hook_list *hl)
 {
 	struct lsm_static_call *scall = hl->scalls;
···
 }
 
 /**
- * security_add_hooks - Add a modules hooks to the hook lists.
- * @hooks: the hooks to add
- * @count: the number of hooks to add
- * @lsmid: the identification information for the security module
+ * security_add_hooks - Add a LSM's hooks to the LSM framework's hook lists
+ * @hooks: LSM hooks to add
+ * @count: number of hooks to add
+ * @lsmid: identification information for the LSM
  *
- * Each LSM has to register its hooks with the infrastructure.
+ * Each LSM has to register its hooks with the LSM framework.
  */
 void __init security_add_hooks(struct security_hook_list *hooks, int count,
 			       const struct lsm_id *lsmid)
···
 	}
 }
 
+/**
+ * early_security_init - Initialize the early LSMs
+ */
 int __init early_security_init(void)
 {
 	struct lsm_info *lsm;