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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-11-13 16:12:02 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-04 13:41:02 +0100
commit6a60df8ec13270fc14f5e16ac67f3e4a029c82f6 (patch)
treec0d06f0fec592e1a34906c24a8963759278f7ba9 /arch/arm
parent2d31ea6f4fb33c7d5221a5f441dc59f54523070f (diff)
libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
[ Upstream commit a8de1304b7df30e3a14f2a8b9709bb4ff31a0385 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/compressed/libfdt_env.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/boot/compressed/libfdt_env.h b/arch/arm/boot/compressed/libfdt_env.h
index 005bf4ff1b4c..f3ddd4f599e3 100644
--- a/arch/arm/boot/compressed/libfdt_env.h
+++ b/arch/arm/boot/compressed/libfdt_env.h
@@ -1,11 +1,13 @@
#ifndef _ARM_LIBFDT_ENV_H
#define _ARM_LIBFDT_ENV_H
+#include <linux/limits.h>
#include <linux/types.h>
#include <linux/string.h>
#include <asm/byteorder.h>
-#define INT_MAX ((int)(~0U>>1))
+#define INT32_MAX S32_MAX
+#define UINT32_MAX U32_MAX
typedef __be16 fdt16_t;
typedef __be32 fdt32_t;