u8 i2c_address;
};
-#if IS_ENABLED(CONFIG_MEDIA_TUNER_MT2266)
+#if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2266)
extern struct dvb_frontend * mt2266_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2266_config *cfg);
#else
static inline struct dvb_frontend * mt2266_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2266_config *cfg)