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| author |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-03-07 16:27:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-07 18:31:59 -0800 |
| commit | 54d50897d544c874562253e2a8f70dfcad22afe8 (patch) | |
| tree | dbdfb1f5ca6b8784cce49139fe235c821265028e /include/uapi/linux/limits.h | |
| parent | linux/kernel.h: use 'short' to define USHRT_MAX, SHRT_MAX, SHRT_MIN (diff) | |
| download | linux-dev-54d50897d544c874562253e2a8f70dfcad22afe8.tar.xz linux-dev-54d50897d544c874562253e2a8f70dfcad22afe8.zip | |
linux/kernel.h: split *_MAX and *_MIN macros into <linux/limits.h>
<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>
Diffstat (limited to '')
| -rw-r--r-- | include/uapi/linux/limits.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/uapi/linux/limits.h b/include/uapi/linux/limits.h index c3547f07605c..6bcbe3068761 100644 --- a/include/uapi/linux/limits.h +++ b/include/uapi/linux/limits.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _LINUX_LIMITS_H -#define _LINUX_LIMITS_H +#ifndef _UAPI_LINUX_LIMITS_H +#define _UAPI_LINUX_LIMITS_H #define NR_OPEN 1024 |