From: Andre Guedes <andre.guedes@intel.com>
Date: Wed, 18 Mar 2020 16:00:56 -0700
Subject: igc: Improve address check in igc_del_mac_filter()
Patch-mainline: v5.8-rc1
Git-commit: a73eb651005eef079a6bf3b448d1b6eb607bc80b
References: jsc#SLE-13533

igc_add_mac_filter() doesn't allow filters with invalid MAC address to
be added to adapter->mac_table so, in igc_del_mac_filter(), we can early
return if MAC address is invalid. No need to traverse the table.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/igc/igc_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -2246,7 +2246,7 @@ static int igc_del_mac_filter(struct igc
 	int rar_entries = hw->mac.rar_entry_count;
 	int i;
 
-	if (is_zero_ether_addr(addr))
+	if (!is_valid_ether_addr(addr))
 		return -EINVAL;
 
 	/* Search for matching entry in the MAC table based on given address