kernel-ark/arch/powerpc/boot/libfdt_env.h
Masahiro Yamada a8de1304b7 libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
The DTC v1.5.1 added references to (U)INT32_MAX.

This is no problem for user-space programs since <stdint.h> defines
(U)INT32_MAX along with (u)int32_t.

For the kernel space, libfdt_env.h needs to be adjusted before we
pull in the changes.

In the kernel, we usually use s/u32 instead of (u)int32_t for the
fixed-width types.

Accordingly, we already have S/U32_MAX for their max values.
So, we should not add (U)INT32_MAX to <linux/limits.h> any more.

Instead, add them to the in-kernel libfdt_env.h to compile the
latest libfdt.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-11-26 13:35:25 -07:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ARCH_POWERPC_BOOT_LIBFDT_ENV_H
#define _ARCH_POWERPC_BOOT_LIBFDT_ENV_H
#include <types.h>
#include <string.h>
#define INT_MAX ((int)(~0U>>1))
#define UINT32_MAX ((u32)~0U)
#define INT32_MAX ((s32)(UINT32_MAX >> 1))
#include "of.h"
typedef unsigned long uintptr_t;
typedef __be16 fdt16_t;
typedef __be32 fdt32_t;
typedef __be64 fdt64_t;
#define fdt16_to_cpu(x) be16_to_cpu(x)
#define cpu_to_fdt16(x) cpu_to_be16(x)
#define fdt32_to_cpu(x) be32_to_cpu(x)
#define cpu_to_fdt32(x) cpu_to_be32(x)
#define fdt64_to_cpu(x) be64_to_cpu(x)
#define cpu_to_fdt64(x) cpu_to_be64(x)
#endif /* _ARCH_POWERPC_BOOT_LIBFDT_ENV_H */