dtc: Enable and fix -Wpointer-arith warnings
This patch turns on the -Wpointer-arith option in the dtc Makefile,
and fixes the resulting warnings due to using (void *) in pointer
arithmetic. While convenient, pointer arithmetic on void * is not
portable, so it's better that we avoid it, particularly in libfdt.
Also add necessary definition of uintptr_t needed by David Gibson's
changeset "dtc: Enable and fix -Wpointer-arith warnings" (the definition
comes from stdint.h, which u-boot doesn't have). -- gvb
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
diff --git a/include/libfdt_env.h b/include/libfdt_env.h
index a7fd2f8..671c3a8 100644
--- a/include/libfdt_env.h
+++ b/include/libfdt_env.h
@@ -38,4 +38,16 @@
#define fdt64_to_cpu(x) __be64_to_cpu(x)
#define cpu_to_fdt64(x) __cpu_to_be64(x)
+/*
+ * Types for `void *' pointers.
+ *
+ * Note: libfdt uses this definition from /usr/include/stdint.h.
+ * Define it here rather than pulling in all of stdint.h.
+ */
+#if __WORDSIZE == 64
+typedef unsigned long int uintptr_t;
+#else
+typedef unsigned int uintptr_t;
+#endif
+
#endif /* _LIBFDT_ENV_H */
