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From f52926174040418e26112cd0ba36afd8bb066928 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 27 Nov 2010 14:02:49 +0100
Subject: [PATCH 3/6] MIPS: BCM47xx: Use sscanf for parsing mac address
Instead of writing out own function for parsing the mac address we now
use sscanf.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
arch/mips/bcm47xx/setup.c | 23 +++--------------------
arch/mips/include/asm/mach-bcm47xx/nvram.h | 7 +++++++
2 files changed, 10 insertions(+), 20 deletions(-)
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -56,23 +56,6 @@ static void bcm47xx_machine_halt(void)
cpu_relax();
}
-static void str2eaddr(char *str, char *dest)
-{
- int i = 0;
-
- if (str == NULL) {
- memset(dest, 0, 6);
- return;
- }
-
- for (;;) {
- dest[i++] = (char) simple_strtoul(str, NULL, 16);
- str += 2;
- if (!*str++ || i == 6)
- break;
- }
-}
-
#define READ_FROM_NVRAM(_outvar, name, buf) \
if (nvram_getenv(name, buf, sizeof(buf)) >= 0)\
sprom->_outvar = simple_strtoul(buf, NULL, 0);
@@ -87,11 +70,11 @@ static void bcm47xx_fill_sprom(struct ss
sprom->revision = 1; /* Fallback: Old hardware does not define this. */
READ_FROM_NVRAM(revision, "sromrev", buf);
if (nvram_getenv("il0macaddr", buf, sizeof(buf)) >= 0)
- str2eaddr(buf, sprom->il0mac);
+ nvram_parse_macaddr(buf, sprom->il0mac);
if (nvram_getenv("et0macaddr", buf, sizeof(buf)) >= 0)
- str2eaddr(buf, sprom->et0mac);
+ nvram_parse_macaddr(buf, sprom->et0mac);
if (nvram_getenv("et1macaddr", buf, sizeof(buf)) >= 0)
- str2eaddr(buf, sprom->et1mac);
+ nvram_parse_macaddr(buf, sprom->et1mac);
READ_FROM_NVRAM(et0phyaddr, "et0phyaddr", buf);
READ_FROM_NVRAM(et1phyaddr, "et1phyaddr", buf);
READ_FROM_NVRAM(et0mdcport, "et0mdcport", buf);
--- a/arch/mips/include/asm/mach-bcm47xx/nvram.h
+++ b/arch/mips/include/asm/mach-bcm47xx/nvram.h
@@ -12,6 +12,7 @@
#define __NVRAM_H
#include <linux/types.h>
+#include <linux/kernel.h>
struct nvram_header {
u32 magic;
@@ -36,4 +37,10 @@ struct nvram_header {
extern int nvram_getenv(char *name, char *val, size_t val_len);
+static inline void nvram_parse_macaddr(char *buf, u8 *macaddr)
+{
+ sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0], &macaddr[1],
+ &macaddr[2], &macaddr[3], &macaddr[4], &macaddr[5]);
+}
+
#endif
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