[PATCH net-next 2/3] net: dsa: b53: Stop using dev->cpu_port incorrectly

[Florian Fainelli]

dev->cpu_port is the driver local information that should only be used
to look up register offsets for a particular port, when they differ
(e.g: IMP port override), but it should certainly not be used in place
of the DSA configured CPU port.

Since the DSA switch layer calls port_vlan_{add,del}() on the CPU port
as well, we can remove the specific setting of the CPU port within
port_vlan_{add,del}.

Fixes: ff39c2d68679 ("net: dsa: b53: Add bridge support")
Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch")
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
 drivers/net/dsa/b53/b53_common.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index a7ca62ba27b7..5e48e98b6187 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -325,7 +325,6 @@ static void b53_get_vlan_entry(struct b53_device *dev, u16 
vid,
 
 static void b53_set_forwarding(struct b53_device *dev, int enable)
 {
-       struct dsa_switch *ds = dev->ds;
        u8 mgmt;
 
        b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
@@ -505,7 +504,7 @@ EXPORT_SYMBOL(b53_imp_vlan_setup);
 int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
 {
        struct b53_device *dev = ds->priv;
-       unsigned int cpu_port = dev->cpu_port;
+       unsigned int cpu_port = ds->ports[port].cpu_dp->index;
        u16 pvlan;
 
        /* Clear the Rx and Tx disable bits and set to no spanning tree */
@@ -1054,7 +1053,6 @@ void b53_vlan_add(struct dsa_switch *ds, int port,
        struct b53_device *dev = ds->priv;
        bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
        bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
-       unsigned int cpu_port = dev->cpu_port;
        struct b53_vlan *vl;
        u16 vid;
 
@@ -1063,12 +1061,11 @@ void b53_vlan_add(struct dsa_switch *ds, int port,
 
                b53_get_vlan_entry(dev, vid, vl);
 
-               vl->members |= BIT(port) | BIT(cpu_port);
+               vl->members |= BIT(port);
                if (untagged)
                        vl->untag |= BIT(port);
                else
                        vl->untag &= ~BIT(port);
-               vl->untag &= ~BIT(cpu_port);
 
                b53_set_vlan_entry(dev, vid, vl);
                b53_fast_age_vlan(dev, vid);
@@ -1432,8 +1429,8 @@ void b53_br_leave(struct dsa_switch *ds, int port, struct 
net_device *br)
                b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
        } else {
                b53_get_vlan_entry(dev, pvid, vl);
-               vl->members |= BIT(port) | BIT(dev->cpu_port);
-               vl->untag |= BIT(port) | BIT(dev->cpu_port);
+               vl->members |= BIT(port) | BIT(cpu_port);
+               vl->untag |= BIT(port) | BIT(cpu_port);
                b53_set_vlan_entry(dev, pvid, vl);
        }
 }
-- 
2.9.3