diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2026-01-13 08:44:17 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-01-17 15:24:05 -0800 |
| commit | ca9d74eb5f6aea6eee746aae648382332dbcf24e (patch) | |
| tree | 9f34df9ed4b221818d25423df11e103ec303a5f7 /include | |
| parent | 171e8ed48276dff973390c5aa3c9e93c0e903725 (diff) | |
uapi: add INT_MAX and INT_MIN constants
Some UAPI headers use INT_MAX and INT_MIN. Currently they include
<limits.h> for their definitions, which introduces a problematic
dependency on libc.
Add custom, namespaced definitions of INT_MAX and INT_MIN using the
same values as the regular kernel code.
These definitions are not added to uapi/linux/limits.h, as that header
will conflict with libc definitions on some platforms.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20260113-uapi-limits-v2-1-93c20f4b2c1a@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/typelimits.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/typelimits.h b/include/uapi/linux/typelimits.h new file mode 100644 index 000000000000..8166c639b518 --- /dev/null +++ b/include/uapi/linux/typelimits.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _UAPI_LINUX_TYPELIMITS_H +#define _UAPI_LINUX_TYPELIMITS_H + +#define __KERNEL_INT_MAX ((int)(~0U >> 1)) +#define __KERNEL_INT_MIN (-__KERNEL_INT_MAX - 1) + +#endif /* _UAPI_LINUX_TYPELIMITS_H */ |