[XEN][PATCH 2/2] xen: libfdt: Changes to make libfdt v1.6.1 compatible with Xen

[Vikram Garhwal <fnu.vikram@xxxxxxxxxx>]

A few minor changes are done to make it compatible with Xen:
    fdt_overlay.c: overlay_fixup_phandle()

        Replace strtoul() with simple_strtoul() as strtoul() is not available in
        Xen lib and included lib.h.

        Change char *endptr to const char *endptr.

    libfdt_env.h:
        Changed path for config.h and stdbool.h. Remaining Xen changes to
        libfdt_env.h carried over from existing libfdt (v1.4.0)

Signed-off-by: Vikram Garhwal <fnu.vikram@xxxxxxxxxx>
---
 xen/common/libfdt/fdt_overlay.c     |  6 ++++--
 xen/include/xen/libfdt/libfdt.h     |  4 ++--
 xen/include/xen/libfdt/libfdt_env.h | 14 ++++++++------
 3 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/xen/common/libfdt/fdt_overlay.c b/xen/common/libfdt/fdt_overlay.c
index d217e79..7b95e2b 100644
--- a/xen/common/libfdt/fdt_overlay.c
+++ b/xen/common/libfdt/fdt_overlay.c
@@ -8,6 +8,7 @@
 
 #include <fdt.h>
 #include <libfdt.h>
+#include <xen/lib.h>
 
 #include "libfdt_internal.h"
 
@@ -446,7 +447,8 @@ static int overlay_fixup_phandle(void *fdt, void *fdto, int 
symbols_off,
                const char *fixup_str = value;
                uint32_t path_len, name_len;
                uint32_t fixup_len;
-               char *sep, *endptr;
+               char *sep;
+               const char *endptr;
                int poffset, ret;
 
                fixup_end = memchr(value, '\0', len);
@@ -476,7 +478,7 @@ static int overlay_fixup_phandle(void *fdt, void *fdto, int 
symbols_off,
                if (!name_len)
                        return -FDT_ERR_BADOVERLAY;
 
-               poffset = strtoul(sep + 1, &endptr, 10);
+               poffset = simple_strtoul(sep + 1, &endptr, 10);
                if ((*endptr != '\0') || (endptr <= (sep + 1)))
                        return -FDT_ERR_BADOVERLAY;
 
diff --git a/xen/include/xen/libfdt/libfdt.h b/xen/include/xen/libfdt/libfdt.h
index 73467f7..c71689e 100644
--- a/xen/include/xen/libfdt/libfdt.h
+++ b/xen/include/xen/libfdt/libfdt.h
@@ -6,8 +6,8 @@
  * Copyright (C) 2006 David Gibson, IBM Corporation.
  */
 
-#include <libfdt_env.h>
-#include <fdt.h>
+#include <xen/libfdt/libfdt_env.h>
+#include <xen/libfdt/fdt.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/xen/include/xen/libfdt/libfdt_env.h 
b/xen/include/xen/libfdt/libfdt_env.h
index 73b6d40..03380d5 100644
--- a/xen/include/xen/libfdt/libfdt_env.h
+++ b/xen/include/xen/libfdt/libfdt_env.h
@@ -7,12 +7,11 @@
  * Copyright 2012 Kim Phillips, Freescale Semiconductor.
  */
 
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
+#include <xen/config.h>
+#include <xen/types.h>
+#include <xen/string.h>
+#include <asm/byteorder.h>
+#include <xen/stdbool.h>
 
 #ifdef __CHECKER__
 #define FDT_FORCE __attribute__((force))
@@ -35,6 +34,9 @@ typedef uint64_t FDT_BITWISE fdt64_t;
                         (EXTRACT_BYTE(x, 4) << 24) | (EXTRACT_BYTE(x, 5) << 
16) | \
                         (EXTRACT_BYTE(x, 6) << 8) | EXTRACT_BYTE(x, 7))
 
+/* Xen-specific libfdt error code. */
+#define FDT_ERR_XEN(err) (FDT_ERR_MAX + (err))
+
 static inline uint16_t fdt16_to_cpu(fdt16_t x)
 {
        return (FDT_FORCE uint16_t)CPU_TO_FDT16(x);
-- 
2.7.4