--- zzzz-none-000/linux-3.10.107/drivers/media/dvb-frontends/stb6100.h 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/media/dvb-frontends/stb6100.h 2021-02-04 17:41:59.000000000 +0000 @@ -94,7 +94,7 @@ u32 reference; }; -#if IS_ENABLED(CONFIG_DVB_STB6100) +#if IS_REACHABLE(CONFIG_DVB_STB6100) extern struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe, const struct stb6100_config *config,