dynamic_debug: make netif_dbg() call __netdev_printk()

Previously, netif_dbg() was using dynamic_dev_dbg() to perform
the underlying printk. Fix it to use __netdev_printk(), instead.

Cc: David S. Miller <[e-mail]>
Signed-off-by: Jason Baron <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

include/linux/netdevice.h

···
 #define netif_dbg(priv, type, netdev, format, args...)		\
 do {								\
 	if (netif_msg_##type(priv))				\
-		dynamic_dev_dbg((netdev)->dev.parent,		\
-				"%s: " format,			\
-				netdev_name(netdev), ##args);	\
+		dynamic_netdev_dbg(netdev, format, ##args);	\
 } while (0)
 #else
 #define netif_dbg(priv, type, dev, format, args...)			\