diff --git a/target/linux/generic/files/drivers/net/phy/swconfig.c b/target/linux/generic/files/drivers/net/phy/swconfig.c
index 799fc29d17..16afea0af8 100644
--- a/target/linux/generic/files/drivers/net/phy/swconfig.c
+++ b/target/linux/generic/files/drivers/net/phy/swconfig.c
@@ -36,7 +36,7 @@ MODULE_LICENSE("GPL");
 
 static int swdev_id = 0;
 static struct list_head swdevs;
-static spinlock_t swdevs_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(swdevs_lock);
 struct swconfig_callback;
 
 struct swconfig_callback