tree 447620b70273e9a79168963b4fb778b1dfcb607d
parent b6663ad702d63f44ec7af01f34fbfb34abdd13a6
author Mugunthan V N <mugunthanvnm@ti.com> 1421920162 +0530
committer David S. Miller <davem@davemloft.net> 1422317150 -0800

drivers: net: cpsw: discard dual emac default vlan configuration

In Dual EMAC, the default VLANs are used to segregate Rx packets between
the ports, so adding the same default VLAN to the switch will affect the
normal packet transfers. So returning error on addition of dual EMAC
default VLANs.

Even if EMAC 0 default port VLAN is added to EMAC 1, it will lead to
break dual EMAC port separations.

Fixes: d9ba8f9e6298 (driver: net: ethernet: cpsw: dual emac interface implementation)
Cc: <stable@vger.kernel.org> # v3.9+
Reported-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>