drivers: net: cpsw: discard dual emac default vlan configuration
authorMugunthan V N <mugunthanvnm@ti.com>
Thu, 22 Jan 2015 09:49:22 +0000 (15:19 +0530)
committerDavid S. Miller <davem@davemloft.net>
Tue, 27 Jan 2015 00:05:50 +0000 (16:05 -0800)
commit02a54164c52ed6eca3089a0d402170fbf34d6cf5
tree447620b70273e9a79168963b4fb778b1dfcb607d
parentb6663ad702d63f44ec7af01f34fbfb34abdd13a6
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>
drivers/net/ethernet/ti/cpsw.c