/*
 * Copyright (c) 2016 François Tigeot
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _ASM_BUG_H_
#define _ASM_BUG_H_

#include <sys/param.h>
#include <linux/kernel.h>

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

#define BUG_ON(condition)       do { if (condition) BUG(); } while(0)

#define _WARN_STR(x)    #x

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

#ifndef WARN
#define WARN(condition, format...) ({                                   \
        int __ret_warn_on = !!(condition);                              \
        if (unlikely(__ret_warn_on))                                    \
                pr_warning(format);                                     \
        unlikely(__ret_warn_on);                                        \
})
#endif

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

#define WARN_ONCE(condition, format...) ({                              \
        static bool __warned_once;                                      \
        int __ret = !!(condition);                                      \
                                                                        \
        if ((condition) && !__warned_once) {                            \
                WARN(condition, format);                                \
                __warned_once = true;                                   \
        }                                                               \
        unlikely(__ret);                                                \
})

#define WARN_ON_SMP(condition)  WARN_ON(condition)

#endif /* _ASM_BUG_H_ */