1*436bf2bcSAndroid Build Coastguard Worker /* SPDX-License-Identifier: GPL-2.0 */ 2*436bf2bcSAndroid Build Coastguard Worker #ifndef _TOOLS_ASM_BUG_H 3*436bf2bcSAndroid Build Coastguard Worker #define _TOOLS_ASM_BUG_H 4*436bf2bcSAndroid Build Coastguard Worker 5*436bf2bcSAndroid Build Coastguard Worker #include <linux/compiler.h> 6*436bf2bcSAndroid Build Coastguard Worker #include <stdio.h> 7*436bf2bcSAndroid Build Coastguard Worker 8*436bf2bcSAndroid Build Coastguard Worker #define __WARN_printf(arg...) do { fprintf(stderr, arg); fprintf(stderr, "\n");} while (0) 9*436bf2bcSAndroid Build Coastguard Worker 10*436bf2bcSAndroid Build Coastguard Worker #define WARN(condition, format...) ({ \ 11*436bf2bcSAndroid Build Coastguard Worker int __ret_warn_on = !!(condition); \ 12*436bf2bcSAndroid Build Coastguard Worker if (unlikely(__ret_warn_on)) \ 13*436bf2bcSAndroid Build Coastguard Worker __WARN_printf(format); \ 14*436bf2bcSAndroid Build Coastguard Worker unlikely(__ret_warn_on); \ 15*436bf2bcSAndroid Build Coastguard Worker }) 16*436bf2bcSAndroid Build Coastguard Worker 17*436bf2bcSAndroid Build Coastguard Worker #define WARN_ON(condition) ({ \ 18*436bf2bcSAndroid Build Coastguard Worker int __ret_warn_on = !!(condition); \ 19*436bf2bcSAndroid Build Coastguard Worker if (unlikely(__ret_warn_on)) \ 20*436bf2bcSAndroid Build Coastguard Worker __WARN_printf("assertion failed at %s:%d\n", \ 21*436bf2bcSAndroid Build Coastguard Worker __FILE__, __LINE__); \ 22*436bf2bcSAndroid Build Coastguard Worker unlikely(__ret_warn_on); \ 23*436bf2bcSAndroid Build Coastguard Worker }) 24*436bf2bcSAndroid Build Coastguard Worker 25*436bf2bcSAndroid Build Coastguard Worker #define WARN_ON_ONCE(condition) ({ \ 26*436bf2bcSAndroid Build Coastguard Worker static int __warned; \ 27*436bf2bcSAndroid Build Coastguard Worker int __ret_warn_once = !!(condition); \ 28*436bf2bcSAndroid Build Coastguard Worker \ 29*436bf2bcSAndroid Build Coastguard Worker if (unlikely(__ret_warn_once && !__warned)) { \ 30*436bf2bcSAndroid Build Coastguard Worker __warned = true; \ 31*436bf2bcSAndroid Build Coastguard Worker WARN_ON(1); \ 32*436bf2bcSAndroid Build Coastguard Worker } \ 33*436bf2bcSAndroid Build Coastguard Worker unlikely(__ret_warn_once); \ 34*436bf2bcSAndroid Build Coastguard Worker }) 35*436bf2bcSAndroid Build Coastguard Worker 36*436bf2bcSAndroid Build Coastguard Worker #define WARN_ONCE(condition, format...) ({ \ 37*436bf2bcSAndroid Build Coastguard Worker static int __warned; \ 38*436bf2bcSAndroid Build Coastguard Worker int __ret_warn_once = !!(condition); \ 39*436bf2bcSAndroid Build Coastguard Worker \ 40*436bf2bcSAndroid Build Coastguard Worker if (unlikely(__ret_warn_once)) \ 41*436bf2bcSAndroid Build Coastguard Worker if (WARN(!__warned, format)) \ 42*436bf2bcSAndroid Build Coastguard Worker __warned = 1; \ 43*436bf2bcSAndroid Build Coastguard Worker unlikely(__ret_warn_once); \ 44*436bf2bcSAndroid Build Coastguard Worker }) 45*436bf2bcSAndroid Build Coastguard Worker 46*436bf2bcSAndroid Build Coastguard Worker #endif /* _TOOLS_ASM_BUG_H */ 47