linux/drivers/net/ethernet/pensando
Shannon Nelson 5c976a5657 ionic: don't remove netdev->dev_addr when syncing uc list
Bridging, and possibly other upper stack gizmos, adds the
lower device's netdev->dev_addr to its own uc list, and
then requests it be deleted when the upper bridge device is
removed.  This delete request also happens with the bridging
vlan_filtering is enabled and then disabled.

Bonding has a similar behavior with the uc list, but since it
also uses set_mac to manage netdev->dev_addr, it doesn't have
the same the failure case.

Because we store our netdev->dev_addr in our uc list, we need
to ignore the delete request from dev_uc_sync so as to not
lose the address and all hope of communicating.  Note that
ndo_set_mac_address is expressly changing netdev->dev_addr,
so no limitation is set there.

Fixes: 2a654540be ("ionic: Add Rx filter and rx_mode ndo support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-09 11:56:59 +01:00
..
ionic ionic: don't remove netdev->dev_addr when syncing uc list 2021-10-09 11:56:59 +01:00
Kconfig ethernet: fix PTP_1588_CLOCK dependencies 2021-08-13 17:49:05 -07:00
Makefile