net: dsa: unexport dsa_is_port_initialized

The dsa_is_port_initialized helper is only used by dsa_switch_resume and
dsa_switch_suspend, if CONFIG_PM_SLEEP is enabled. Make it static to
dsa.c.
Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/dsa.h

@@ -256,11 +256,6 @@ static inline bool dsa_is_normal_port(struct dsa_switch *ds, int p)
 	return !dsa_is_cpu_port(ds, p) && !dsa_is_dsa_port(ds, p);
 }
 
-static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
-{
-	return ds->enabled_port_mask & (1 << p) && ds->ports[p].netdev;
-}
-
 static inline u8 dsa_upstream_port(struct dsa_switch *ds)
 {
 	struct dsa_switch_tree *dst = ds->dst;

net/dsa/dsa.c

@@ -220,6 +220,11 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
 }
 
 #ifdef CONFIG_PM_SLEEP
+static bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
+{
+	return ds->enabled_port_mask & (1 << p) && ds->ports[p].netdev;
+}
+
 int dsa_switch_suspend(struct dsa_switch *ds)
 {
 	int i, ret = 0;