From: Andrew Morton <akpm@linux-foundation.org>

this file isn't actually part of the kernel..

Error: External symbol 'hex_asc' referenced from prom_init.c

Cc: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/powerpc/kernel/prom_init.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -puN arch/powerpc/kernel/prom_init.c~ppc-use-the-common-ascii-hex-helpers-fix arch/powerpc/kernel/prom_init.c
--- a/arch/powerpc/kernel/prom_init.c~ppc-use-the-common-ascii-hex-helpers-fix
+++ a/arch/powerpc/kernel/prom_init.c
@@ -453,6 +453,7 @@ static void add_string(char **str, const
 
 static char *tohex(unsigned int x)
 {
+	static char digits[] = "0123456789abcdef";
 	static char result[9];
 	int i;
 
@@ -460,7 +461,7 @@ static char *tohex(unsigned int x)
 	i = 8;
 	do {
 		--i;
-		result[i] = hex_asc_lo(x);
+		result[i] = digits[x & 0xf];
 		x >>= 4;
 	} while (x != 0 && i > 0);
 	return &result[i];
_