linux-kernel - [PATCH 1/3] libfdt: Ensure INT_MAX is defined in libfdt

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Date:   Thu, 13 Sep 2018 15:28:26 -0500
From:   Rob Herring <robh@...nel.org>
To:     devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org,
        Frank Rowand <frowand.list@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH 1/3] libfdt: Ensure INT_MAX is defined in libfdt_env.h

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@...linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linuxppc-dev@...ts.ozlabs.org
Signed-off-by: Rob Herring <robh@...nel.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 07437816e098..b36c0289a308 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 2a0c8b1bf147..2abc8e83b95e 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 c6ac1fe7ec68..edb0f0c30904 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>
-- 
2.17.1