[PATCH AUTOSEL 4.19 036/191] libfdt: Ensure INT_MAX is defined in libfdt_env.h

Sasha Levin
2019-11-10T02:41:34Z

From: Rob Herring <robh@kernel.org>

[ Upstream commit 53dd9dce6979bc54d64a3a09a2fb20187a025be7 ]

The next update of libfdt has a new dependency on INT_MAX. Update the
instances of libfdt_env.h in the kernel to either include the necessary
header with the definition or define it locally.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm/boot/compressed/libfdt_env.h | 2 ++
arch/powerpc/boot/libfdt_env.h | 2 ++
include/linux/libfdt_env.h | 1 +
3 files changed, 5 insertions(+)

diff --git a/arch/arm/boot/compressed/libfdt_env.h b/arch/arm/boot/compressed/libfdt_env.h
index 07437816e0986..b36c0289a308e 100644
--- a/arch/arm/boot/compressed/libfdt_env.h
+++ b/arch/arm/boot/compressed/libfdt_env.h
@@ -6,6 +6,8 @@
#include <linux/string.h>
#include <asm/byteorder.h>

+#define INT_MAX ((int)(~0U>>1))
+
typedef __be16 fdt16_t;
typedef __be32 fdt32_t;
typedef __be64 fdt64_t;
diff --git a/arch/powerpc/boot/libfdt_env.h b/arch/powerpc/boot/libfdt_env.h
index 2a0c8b1bf1479..2abc8e83b95e9 100644
--- a/arch/powerpc/boot/libfdt_env.h
+++ b/arch/powerpc/boot/libfdt_env.h
@@ -5,6 +5,8 @@
#include <types.h>
#include <string.h>

+#define INT_MAX ((int)(~0U>>1))
+
#include "of.h"

typedef unsigned long uintptr_t;
diff --git a/include/linux/libfdt_env.h b/include/linux/libfdt_env.h
index c6ac1fe7ec68a..edb0f0c309044 100644
--- a/include/linux/libfdt_env.h
+++ b/include/linux/libfdt_env.h
@@ -2,6 +2,7 @@
#ifndef LIBFDT_ENV_H
#define LIBFDT_ENV_H

+#include <linux/kernel.h> /* For INT_MAX */
#include <linux/string.h>

#include <asm/byteorder.h>
--
2.20.1