b44: fix workarround for wap54g10

The code for the b44_wap54g10_workaround was never included, because
the config option was wrong. The nvram_get function was never in
mainline kernel, only in external OpenWrt patches.

The code should be compiled in when CONFIG_BCM47XX is selected and not
when CONFIG_SSB_DRIVER_MIPS is selected, because nvram_getenv is only
available on bcm47xx platforms and now in the mainline kernel code.
Using an include is better than a second function declaration, to fix
this when the function signature changes.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 6 deletions

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index c6e86315b3f8..2e2b76258ab4 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -381,11 +381,11 @@ static void b44_set_flow_ctrl(struct b44 *bp, u32 local, u32 remote)
         __b44_set_flow_ctrl(bp, pause_enab);
 }
 
-#ifdef SSB_DRIVER_MIPS
-extern char *nvram_get(char *name);
+#ifdef CONFIG_BCM47XX
+#include <asm/mach-bcm47xx/nvram.h>
 static void b44_wap54g10_workaround(struct b44 *bp)
 {
-        const char *str;
+        char buf[20];
         u32 val;
         int err;
 
@@ -394,10 +394,9 @@ static void b44_wap54g10_workaround(struct b44 *bp)
          * see https://dev.openwrt.org/ticket/146
          * check and reset bit "isolate"
          */
-        str = nvram_get("boardnum");
-        if (!str)
+        if (nvram_getenv("boardnum", buf, sizeof(buf)) < 0)
                 return;
-        if (simple_strtoul(str, NULL, 0) == 2) {
+        if (simple_strtoul(buf, NULL, 0) == 2) {
                 err = __b44_readphy(bp, 0, MII_BMCR, &val);
                 if (err)
                         goto error;