igb: check both function bits in status register in wol exception

The ethtool code for enabling Wake on Lan was not correctly checking the
status register bits so as a result ports 0 and 2 were both being allowed
to set WOL to enabled even though it is only supported on the first port
for our adapters.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index ac9d5272650d..f771a6c08777 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -1795,7 +1795,7 @@ static int igb_wol_exclusion(struct igb_adapter *adapter,
                 /* dual port cards only support WoL on port A from now on
                  * unless it was enabled in the eeprom for port B
                  * so exclude FUNC_1 ports from having WoL enabled */
-                if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1 &&
+                if ((rd32(E1000_STATUS) & E1000_STATUS_FUNC_MASK) &&
                     !adapter->eeprom_wol) {
                         wol->supported = 0;
                         break;