root/sys/dev/pci/drm/include/linux/bug.h
/*      $OpenBSD: bug.h,v 1.3 2025/02/07 03:03:31 jsg Exp $     */
/*
 * Copyright (c) 2013, 2014, 2015 Mark Kettenis
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _LINUX_BUG_H
#define _LINUX_BUG_H

#include <sys/types.h>
#include <sys/systm.h>
#include <linux/compiler.h>
#include <linux/build_bug.h>

#define BUG()                                                           \
do {                                                                    \
        panic("BUG at %s:%d", __FILE__, __LINE__);                      \
} while (0)

#ifndef DIAGNOSTIC
#define BUG_ON(x)       ((void)(x))
#else
#define BUG_ON(x)       KASSERT(!(x))
#endif

#define WARN(condition, fmt...) ({                                      \
        int __ret = !!(condition);                                      \
        if (__ret)                                                      \
                printf(fmt);                                            \
        unlikely(__ret);                                                \
})

#define WARN_ONCE(condition, fmt...) ({                                 \
        static int __warned;                                            \
        int __ret = !!(condition);                                      \
        if (__ret && !__warned) {                                       \
                printf(fmt);                                            \
                __warned = 1;                                           \
        }                                                               \
        unlikely(__ret);                                                \
})

#define WARN_RATELIMIT(condition, fmt...)       WARN_ONCE(condition, ##fmt)

#define _WARN_STR(x) #x

#define WARN_ON(condition) ({                                           \
        int __ret = !!(condition);                                      \
        if (__ret)                                                      \
                printf("WARNING %s failed at %s:%d\n",                  \
                    _WARN_STR(condition), __FILE__, __LINE__);          \
        unlikely(__ret);                                                \
})

#define WARN_ON_ONCE(condition) ({                                      \
        static int __warned;                                            \
        int __ret = !!(condition);                                      \
        if (__ret && !__warned) {                                       \
                printf("WARNING %s failed at %s:%d\n",                  \
                    _WARN_STR(condition), __FILE__, __LINE__);          \
                __warned = 1;                                           \
        }                                                               \
        unlikely(__ret);                                                \
})

#endif