Commit ca9d74eb authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Jakub Kicinski
Browse files

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: default avatarThomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20260113-uapi-limits-v2-1-93c20f4b2c1a@linutronix.de


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 171e8ed4

include/uapi/linux/typelimits.h

0 → 100644
+8 −0
Original line number Diff line number Diff line 
/* 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 */