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[v2,10/10] ath9k: use a random MAC address if the EEPROM address is invalid

Message ID 1414250375-74121-10-git-send-email-nbd@openwrt.org (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Felix Fietkau Oct. 25, 2014, 3:19 p.m. UTC 
Based on OpenWrt patch by Gabor Juhos

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
 drivers/net/wireless/ath/ath9k/hw.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 47f410e..ee9fb52 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -19,6 +19,7 @@ 
 #include <linux/module.h>
 #include <linux/time.h>
 #include <linux/bitops.h>
+#include <linux/etherdevice.h>
 #include <asm/unaligned.h>
 
 #include "hw.h"
@@ -446,8 +447,16 @@  static int ath9k_hw_init_macaddr(struct ath_hw *ah)
 		common->macaddr[2 * i] = eeval >> 8;
 		common->macaddr[2 * i + 1] = eeval & 0xff;
 	}
-	if (sum == 0 || sum == 0xffff * 3)
-		return -EADDRNOTAVAIL;
+	if (!is_valid_ether_addr(common->macaddr)) {
+		ath_err(common,
+			"eeprom contains invalid mac address: %pM\n",
+			common->macaddr);
+
+		random_ether_addr(common->macaddr);
+		ath_err(common,
+			"random mac address will be used: %pM\n",
+			common->macaddr);
+	}
 
 	return 0;
 }