net: dsa: Introduce dsa_is_port_initialized

[firefly-linux-kernel-4.4.55.git] / include / net / dsa.h

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 92be34791963e7e10c3303e906dfb8a5c5cab924..c542c131d5512ae233a98a43468e56a66b5609db 100644 (file)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -165,6 +165,11 @@ static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
        return !!(ds->index == ds->dst->cpu_switch && p == ds->dst->cpu_port);
 }
 
+static inline bool dsa_is_port_initialized(struct dsa_switch *ds, int p)
+{
+       return ds->phys_port_mask & (1 << p) && ds->ports[p];
+}
+
 static inline u8 dsa_upstream_port(struct dsa_switch *ds)
 {
        struct dsa_switch_tree *dst = ds->dst;