commit c600c826a6f4e35512955a5e9a22b0baa741b455
author Ivo van Doorn <ivdoorn@gmail.com> Mon Aug 30 21:14:15 2010 +0200
committer John W. Linville <linville@tuxdriver.com> Tue Aug 31 14:22:24 2010 -0400
tree deffb2f8710401ec069041245edeb5b05ff2bf6f
parent b9eca24209a59ef0a8c3cbbbb94b8c76d4b3aae3

rt2x00: Don't set unicast/BSSID masks when clearning MAC or BSSID

When configuring the MAC_ADDR or MAC_BSSID with an empty address,
the UNICAST_TO_ME_MASK and BSS_ID_MASK must also be reset to prevent
invalid interpretation of the addresses.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800lib.c

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index a5455f4..f90e932b 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1135,19 +1135,23 @@
 	}
 
 	if (flags & CONFIG_UPDATE_MAC) {
-		reg = le32_to_cpu(conf->mac[1]);
-		rt2x00_set_field32(&reg, MAC_ADDR_DW1_UNICAST_TO_ME_MASK, 0xff);
-		conf->mac[1] = cpu_to_le32(reg);
+		if (!is_zero_ether_addr((const u8 *)conf->mac)) {
+			reg = le32_to_cpu(conf->mac[1]);
+			rt2x00_set_field32(&reg, MAC_ADDR_DW1_UNICAST_TO_ME_MASK, 0xff);
+			conf->mac[1] = cpu_to_le32(reg);
+		}
 
 		rt2800_register_multiwrite(rt2x00dev, MAC_ADDR_DW0,
 					      conf->mac, sizeof(conf->mac));
 	}
 
 	if (flags & CONFIG_UPDATE_BSSID) {
-		reg = le32_to_cpu(conf->bssid[1]);
-		rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_ID_MASK, 3);
-		rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_BCN_NUM, 7);
-		conf->bssid[1] = cpu_to_le32(reg);
+		if (!is_zero_ether_addr((const u8 *)conf->bssid)) {
+			reg = le32_to_cpu(conf->bssid[1]);
+			rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_ID_MASK, 3);
+			rt2x00_set_field32(&reg, MAC_BSSID_DW1_BSS_BCN_NUM, 7);
+			conf->bssid[1] = cpu_to_le32(reg);
+		}
 
 		rt2800_register_multiwrite(rt2x00dev, MAC_BSSID_DW0,
 					      conf->bssid, sizeof(conf->bssid));