1*328bafc9SJiri Olsa /* SPDX-License-Identifier: GPL-2.0 */ 2*328bafc9SJiri Olsa #ifndef __ERR_H__ 3*328bafc9SJiri Olsa #define __ERR_H__ 4*328bafc9SJiri Olsa 5*328bafc9SJiri Olsa #define MAX_ERRNO 4095 6*328bafc9SJiri Olsa #define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO 7*328bafc9SJiri Olsa IS_ERR_OR_NULL(const void * ptr)8*328bafc9SJiri Olsastatic inline int IS_ERR_OR_NULL(const void *ptr) 9*328bafc9SJiri Olsa { 10*328bafc9SJiri Olsa return !ptr || IS_ERR_VALUE((unsigned long)ptr); 11*328bafc9SJiri Olsa } 12*328bafc9SJiri Olsa PTR_ERR(const void * ptr)13*328bafc9SJiri Olsastatic inline long PTR_ERR(const void *ptr) 14*328bafc9SJiri Olsa { 15*328bafc9SJiri Olsa return (long) ptr; 16*328bafc9SJiri Olsa } 17*328bafc9SJiri Olsa 18*328bafc9SJiri Olsa #endif /* __ERR_H__ */ 19