mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 08:39:31 +07:00
54d50897d5
<linux/kernel.h> tends to be cluttered because we often put various sort of unrelated stuff in it. So, we have split out a sensible chunk of code into a separate header from time to time. This commit splits out the *_MAX and *_MIN defines. The standard header <limits.h> contains various MAX, MIN constants including numerial limits. [1] I think it makes sense to move in-kernel MAX, MIN constants into include/linux/limits.h. We already have include/uapi/linux/limits.h to contain some user-space constants. I changed its include guard to _UAPI_LINUX_LIMITS_H. This change has no impact to the user-space because scripts/headers_install.sh rips off the '_UAPI' prefix from the include guards of exported headers. [1] http://pubs.opengroup.org/onlinepubs/009604499/basedefs/limits.h.html Link: http://lkml.kernel.org/r/1549156242-20806-2-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Alex Elder <elder@linaro.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_LIMITS_H
|
|
#define _LINUX_LIMITS_H
|
|
|
|
#include <uapi/linux/limits.h>
|
|
#include <linux/types.h>
|
|
|
|
#define USHRT_MAX ((unsigned short)~0U)
|
|
#define SHRT_MAX ((short)(USHRT_MAX >> 1))
|
|
#define SHRT_MIN ((short)(-SHRT_MAX - 1))
|
|
#define INT_MAX ((int)(~0U >> 1))
|
|
#define INT_MIN (-INT_MAX - 1)
|
|
#define UINT_MAX (~0U)
|
|
#define LONG_MAX ((long)(~0UL >> 1))
|
|
#define LONG_MIN (-LONG_MAX - 1)
|
|
#define ULONG_MAX (~0UL)
|
|
#define LLONG_MAX ((long long)(~0ULL >> 1))
|
|
#define LLONG_MIN (-LLONG_MAX - 1)
|
|
#define ULLONG_MAX (~0ULL)
|
|
#define SIZE_MAX (~(size_t)0)
|
|
#define PHYS_ADDR_MAX (~(phys_addr_t)0)
|
|
|
|
#define U8_MAX ((u8)~0U)
|
|
#define S8_MAX ((s8)(U8_MAX >> 1))
|
|
#define S8_MIN ((s8)(-S8_MAX - 1))
|
|
#define U16_MAX ((u16)~0U)
|
|
#define S16_MAX ((s16)(U16_MAX >> 1))
|
|
#define S16_MIN ((s16)(-S16_MAX - 1))
|
|
#define U32_MAX ((u32)~0U)
|
|
#define S32_MAX ((s32)(U32_MAX >> 1))
|
|
#define S32_MIN ((s32)(-S32_MAX - 1))
|
|
#define U64_MAX ((u64)~0ULL)
|
|
#define S64_MAX ((s64)(U64_MAX >> 1))
|
|
#define S64_MIN ((s64)(-S64_MAX - 1))
|
|
|
|
#endif /* _LINUX_LIMITS_H */
|