40 static inline long __must_check PTR_ERR(__force const void *ptr)  in PTR_ERR()  argument
42 	return (long) ptr;  in PTR_ERR()
45 static inline bool __must_check IS_ERR(__force const void *ptr)  in IS_ERR()  argument
47 	return IS_ERR_VALUE((unsigned long)ptr);  in IS_ERR()
50 static inline bool __must_check IS_ERR_OR_NULL(__force const void *ptr)  in IS_ERR_OR_NULL()  argument
52 	return unlikely(!ptr) || IS_ERR_VALUE((unsigned long)ptr);  in IS_ERR_OR_NULL()
55 static inline int __must_check PTR_ERR_OR_ZERO(__force const void *ptr)  in PTR_ERR_OR_ZERO()  argument
57 	if (IS_ERR(ptr))  in PTR_ERR_OR_ZERO()
58 		return PTR_ERR(ptr);  in PTR_ERR_OR_ZERO()
70 static inline void * __must_check ERR_CAST(__force const void *ptr)  in ERR_CAST()  argument
73 	return (void *) ptr;  in ERR_CAST()