i40evf: don't delete all the filters

Due to an inverted conditional, the driver was marking all of its MAC
filters for deletion every time set_rx_mode was called. Depending upon
the timing of the calls to set_rx_mode and the processing of the admin
queue, the driver would (accidentally) end up with a varying number of
functional filters.

Correct this logic so that MAC filters are added and removed correctly.
Add a check for the driver's "hardware" MAC address so that this filter
doesn't get removed incorrectly.

Change-ID: Ib3e7c4a5b53df6835f164fe44cb778cb71f8aff8
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 94eff4a..1c2ee97 100644 (file)
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -892,8 +892,10 @@ static void i40evf_set_rx_mode(struct net_device *netdev)
                                        break;
                                }
                        }
+                       if (ether_addr_equal(f->macaddr, adapter->hw.mac.addr))
+                               found = true;
                }
-               if (found) {
+               if (!found) {
                        f->remove = true;
                        adapter->aq_required |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
                }