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LinuxKPI: Add sort() wrapper.

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swap parameter is not supported as it is rarely used in Linux kernel
and its implementation will add some preprocessor spaghetti to qsort.

Required by drm-kmod.

MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D33675
This commit is contained in:
Vladimir Kondratyev 2021-12-25 12:15:07 +03:00
parent 64dab63f3b
commit 7356f661e8
1 changed files with 41 additions and 0 deletions
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41
sys/compat/linuxkpi/common/include/linux/sort.h Normal file
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2021 Vladimir Kondratyev <wulf@FreeBSD.org>
*
* 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 _LINUXKPI_LINUX_SORT_H_
#define _LINUXKPI_LINUX_SORT_H_
#include <linux/types.h>
#include <linux/kernel.h>
#include <sys/libkern.h>
#define sort(base, num, size, cmp, swap) do { \
BUILD_BUG_ON_ZERO(swap); \
qsort(base, num, size, cmp); \
} while (0)
#endif /* _LINUXKPI_LINUX_SORT_H_ */