-extern struct dvb_frontend* mt312_attach(const struct mt312_config* config,
- struct i2c_adapter* i2c);
-
-extern struct dvb_frontend* vp310_attach(const struct mt312_config* config,
- struct i2c_adapter* i2c);
+#if defined(CONFIG_DVB_MT312) || (defined(CONFIG_DVB_MT312_MODULE) && defined(MODULE))
+struct dvb_frontend* vp310_mt312_attach(const struct mt312_config* config,
+ struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* vp310_mt312_attach(const struct mt312_config* config,
+ struct i2c_adapter* i2c)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+ return NULL;
+}
+#endif // CONFIG_DVB_MT312