23 	struct cxl_calls *calls = NULL;  in cxl_calls_get()  local
26 	calls = rcu_dereference(cxl_calls);  in cxl_calls_get()
27 	if (calls && !try_module_get(calls->owner))  in cxl_calls_get()
28 		calls = NULL;  in cxl_calls_get()
31 	return calls;  in cxl_calls_get()
34 static inline void cxl_calls_put(struct cxl_calls *calls)  in cxl_calls_put()  argument
36 	BUG_ON(calls != cxl_calls);  in cxl_calls_put()
49 static inline void cxl_calls_put(struct cxl_calls *calls) { }  in cxl_calls_put()  argument
68 	struct cxl_calls *calls;  in cxl_slbia()  local
70 	calls = cxl_calls_get();  in cxl_slbia()
71 	if (!calls)  in cxl_slbia()
75 	    calls->cxl_slbia(mm);  in cxl_slbia()
77 	cxl_calls_put(calls);  in cxl_slbia()
80 int register_cxl_calls(struct cxl_calls *calls)  in register_cxl_calls()  argument
85 	rcu_assign_pointer(cxl_calls, calls);  in register_cxl_calls()
90 void unregister_cxl_calls(struct cxl_calls *calls)  in unregister_cxl_calls()  argument
92 	BUG_ON(cxl_calls->owner != calls->owner);  in unregister_cxl_calls()