From: Thomas Weißschuh Date: Tue, 13 Jan 2026 07:44:17 +0000 (+0100) Subject: uapi: add INT_MAX and INT_MIN constants X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca9d74eb5f6aea6eee746aae648382332dbcf24e;p=thirdparty%2Fkernel%2Flinux.git uapi: add INT_MAX and INT_MIN constants Some UAPI headers use INT_MAX and INT_MIN. Currently they include 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 Link: https://patch.msgid.link/20260113-uapi-limits-v2-1-93c20f4b2c1a@linutronix.de Signed-off-by: Jakub Kicinski --- diff --git a/include/uapi/linux/typelimits.h b/include/uapi/linux/typelimits.h new file mode 100644 index 0000000000000..8166c639b5186 --- /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 */