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ef2a82120f
It returns the minimum that is not zero, except both equals to zero. Sponsored by: Serenity Cyber Security, LLC MFC after: 1 week Reviewed by: bz, emaste, ssaxena Differential Revision: https://reviews.freebsd.org/D45450 Differential Revision: https://reviews.freebsd.org/D45451 (cherry picked from commit 07c7c41ca1e31c20c2e2d8fb68c148f521831e4d)
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
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* Copyright (c) 2014-2015 François Tigeot
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* Copyright (c) 2015 Hans Petter Selasky <hselasky@FreeBSD.org>
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* Copyright (c) 2016 Matt Macy <mmacy@FreeBSD.org>
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* Copyright (c) 2023 Serenity Cyber Security, LLC.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _LINUXKPI_LINUX_MINMAX_H_
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#define _LINUXKPI_LINUX_MINMAX_H_
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#include <linux/build_bug.h>
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#include <linux/compiler.h>
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#include <linux/types.h>
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#define min(x, y) ((x) < (y) ? (x) : (y))
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#define max(x, y) ((x) > (y) ? (x) : (y))
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#define min3(a, b, c) min(a, min(b, c))
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#define max3(a, b, c) max(a, max(b, c))
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#define min_not_zero(x, y) ({ \
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__typeof(x) __min1 = (x); \
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__typeof(y) __min2 = (y); \
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__min1 == 0 ? __min2 : ((__min2 == 0) ? __min1 : min(__min1, __min2));\
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})
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#define min_t(type, x, y) ({ \
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type __min1 = (x); \
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type __min2 = (y); \
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__min1 < __min2 ? __min1 : __min2; })
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#define max_t(type, x, y) ({ \
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type __max1 = (x); \
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type __max2 = (y); \
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__max1 > __max2 ? __max1 : __max2; })
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#define clamp_t(type, _x, min, max) min_t(type, max_t(type, _x, min), max)
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#define clamp(x, lo, hi) min(max(x, lo), hi)
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#define clamp_val(val, lo, hi) clamp_t(typeof(val), val, lo, hi)
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/* Swap values of a and b */
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#define swap(a, b) do { \
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__typeof(a) _swap_tmp = a; \
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a = b; \
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b = _swap_tmp; \
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} while (0)
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#endif /* _LINUXKPI_LINUX_MINMAX_H_ */
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