From 846a67c15d49bb23ec3928967b3588362d8abfe3 Mon Sep 17 00:00:00 2001
From: Priit Laes <plaes@plaes.org>
Date: Wed, 23 Nov 2011 16:11:04 +0200
Subject: [PATCH] ARM: mach-orion5x: Use hex2bin that is present in kernel lib

---
 arch/arm/mach-orion5x/dns323-setup.c |   39 +---------------------------------
 arch/arm/mach-orion5x/tsx09-common.c |   34 +----------------------------
 2 files changed, 2 insertions(+), 71 deletions(-)

diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index 343f60e..9b55a88 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -172,37 +172,6 @@ static struct mv643xx_eth_platform_data dns323_eth_data = {
 	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
 };
 
-/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
- * functions be kept somewhere?
- */
-static int __init dns323_parse_hex_nibble(char n)
-{
-	if (n >= '0' && n <= '9')
-		return n - '0';
-
-	if (n >= 'A' && n <= 'F')
-		return n - 'A' + 10;
-
-	if (n >= 'a' && n <= 'f')
-		return n - 'a' + 10;
-
-	return -1;
-}
-
-static int __init dns323_parse_hex_byte(const char *b)
-{
-	int hi;
-	int lo;
-
-	hi = dns323_parse_hex_nibble(b[0]);
-	lo = dns323_parse_hex_nibble(b[1]);
-
-	if (hi < 0 || lo < 0)
-		return -1;
-
-	return (hi << 4) | lo;
-}
-
 static int __init dns323_read_mac_addr(void)
 {
 	u_int8_t addr[6];
@@ -224,14 +193,8 @@ static int __init dns323_read_mac_addr(void)
 	}
 
 	for (i = 0; i < 6; i++)	{
-		int byte;
-
-		byte = dns323_parse_hex_byte(mac_page + (i * 3));
-		if (byte < 0) {
+		if (hex2bin(addr[i], mac_page + (i * 3), 2))
 			goto error_fail;
-		}
-
-		addr[i] = byte;
 	}
 
 	iounmap(mac_page);
diff --git a/arch/arm/mach-orion5x/tsx09-common.c b/arch/arm/mach-orion5x/tsx09-common.c
index c9abb8f..3bc7ff0 100644
--- a/arch/arm/mach-orion5x/tsx09-common.c
+++ b/arch/arm/mach-orion5x/tsx09-common.c
@@ -52,52 +52,20 @@ struct mv643xx_eth_platform_data qnap_tsx09_eth_data = {
 	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
 };
 
-static int __init qnap_tsx09_parse_hex_nibble(char n)
-{
-	if (n >= '0' && n <= '9')
-		return n - '0';
-
-	if (n >= 'A' && n <= 'F')
-		return n - 'A' + 10;
-
-	if (n >= 'a' && n <= 'f')
-		return n - 'a' + 10;
-
-	return -1;
-}
-
-static int __init qnap_tsx09_parse_hex_byte(const char *b)
-{
-	int hi;
-	int lo;
-
-	hi = qnap_tsx09_parse_hex_nibble(b[0]);
-	lo = qnap_tsx09_parse_hex_nibble(b[1]);
-
-	if (hi < 0 || lo < 0)
-		return -1;
-
-	return (hi << 4) | lo;
-}
-
 static int __init qnap_tsx09_check_mac_addr(const char *addr_str)
 {
 	u_int8_t addr[6];
 	int i;
 
 	for (i = 0; i < 6; i++) {
-		int byte;
-
 		/*
 		 * Enforce "xx:xx:xx:xx:xx:xx\n" format.
 		 */
 		if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
 			return -1;
 
-		byte = qnap_tsx09_parse_hex_byte(addr_str + (i * 3));
-		if (byte < 0)
+		if (hex2bin(addr[i], addr_str + (i * 3), 2))
 			return -1;
-		addr[i] = byte;
 	}
 
 	printk(KERN_INFO "tsx09: found ethernet mac address ");
-- 
1.7.8.rc3