2 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2014-2015 Mellanox Technologies, Ltd. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice unmodified, this list of conditions, and the following
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #ifndef _LINUX_MATH64_H
30 #define _LINUX_MATH64_H
32 #include <sys/stdint.h>
34 #define do_div(n, base) ({ \
35 uint32_t __base = (base); \
37 __rem = ((uint64_t)(n)) % __base; \
38 (n) = ((uint64_t)(n)) / __base; \
42 static inline uint64_t
43 div_u64_rem(uint64_t dividend, uint32_t divisor, uint32_t *remainder)
45 *remainder = dividend % divisor;
46 return (dividend / divisor);
49 static inline uint64_t
50 div_u64(uint64_t dividend, uint32_t divisor)
52 return (dividend / divisor);
55 #endif /* _LINUX_MATH64_H */