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move limits for sNN/uNN types from kernel.h to limits.h

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Since we define the {s,u}{8,16,32,64} types the same way on all
architectures, i.e. everybody uses asm-generic/int-ll64.h, we can just
define the associated limit macros in terms of those for the
corresponding types. This eliminates another set of limit macros that
are not usable in #if conditionals.

These type names and macros are not C or POSIX, so there's no language
violation, but certainly a violation of developers' reasonable
expectations.

Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>
This commit is contained in:
Rasmus Villemoes
2025-07-14 12:43:28 -06:00
committed by Tom Rini
parent dc323f3bee
commit 0604595c16
2 changed files with 13 additions and 13 deletions
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include/linux/kernel.h
-13
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@@ -5,19 +5,6 @@
#include <linux/printk.h> /* for printf/pr_* utilities */
#include <limits.h>
#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))
#define INT32_MAX S32_MAX
#define STACK_MAGIC 0xdeadbeef