BR_VLAN_TUNNEL_BIT
#define BR_VLAN_TUNNEL BIT(BR_VLAN_TUNNEL_BIT)
if (test_bit(BR_VLAN_TUNNEL_BIT, &p->flags))
if (p && test_bit(BR_VLAN_TUNNEL_BIT, &p->flags))
if (port && test_bit(BR_VLAN_TUNNEL_BIT, &port->flags))
if (!p || !test_bit(BR_VLAN_TUNNEL_BIT, &p->flags))
if (!test_bit(BR_VLAN_TUNNEL_BIT, &p->flags)) {