[PATCH net-next 08/16] net: dsa: use ports list to setup multiple master devices

[Vivien Didelot]

Now that we have a potential list of CPU ports, make use of it instead
of only configuring the master device of an unique CPU port.

Signed-off-by: Vivien Didelot <vivien.dide...@gmail.com>
---
 net/dsa/dsa2.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 8b038cc56769..3b8de155bc0b 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -501,19 +501,27 @@ static void dsa_tree_teardown_switches(struct 
dsa_switch_tree *dst)
 
 static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
 {
-       struct dsa_port *cpu_dp = dst->cpu_dp;
-       struct net_device *master = cpu_dp->master;
+       struct dsa_port *dp;
+       int err;
 
-       /* DSA currently supports a single pair of CPU port and master device */
-       return dsa_master_setup(master, cpu_dp);
+       list_for_each_entry(dp, &dst->ports, list) {
+               if (dsa_port_is_cpu(dp)) {
+                       err = dsa_master_setup(dp->master, dp);
+                       if (err)
+                               return err;
+               }
+       }
+
+       return 0;
 }
 
 static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
 {
-       struct dsa_port *cpu_dp = dst->cpu_dp;
-       struct net_device *master = cpu_dp->master;
+       struct dsa_port *dp;
 
-       return dsa_master_teardown(master);
+       list_for_each_entry(dp, &dst->ports, list)
+               if (dsa_port_is_cpu(dp))
+                       dsa_master_teardown(dp->master);
 }
 
 static int dsa_tree_setup(struct dsa_switch_tree *dst)
-- 
2.23.0