Using select for DVB_CORE doesn't work, as reported by Randy: CONFIG_I2C=m CONFIG_DVB_CORE=y ld: drivers/media/dvb-core/dvbdev.o: in function `dvb_module_probe': dvbdev.c:(.text+0xf92): undefined reference to `i2c_new_client_device' ld: dvbdev.c:(.text+0xffb): undefined reference to `i2c_unregister_device' ld: drivers/media/dvb-core/dvbdev.o: in function `dvb_module_release': dvbdev.c:(.text+0x107d): undefined reference to `i2c_unregister_device' The problem is actually caused by the dummy frontend driver, which uses select, and it is missing an I2C dependency: WARNING: unmet direct dependencies detected for DVB_CORE Depends on [m]: MEDIA_SUPPORT [=y] && MEDIA_DIGITAL_TV_SUPPORT [=y] && (I2C [=m] || I2C [=m]=n) Selected by [y]: - DVB_DUMMY_FE [=y] && MEDIA_SUPPORT [=y] && MEDIA_TEST_SUPPORT [=y] As this is the only frontend driver using "select DVB_CORE", change it do depends on DVB_CORE. Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> --- drivers/media/dvb-frontends/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig index fbadba9b328e..643b851a6b60 100644 --- a/drivers/media/dvb-frontends/Kconfig +++ b/drivers/media/dvb-frontends/Kconfig @@ -956,7 +956,6 @@ comment "Tools to develop new frontends" config DVB_DUMMY_FE tristate "Dummy frontend driver" - depends on MEDIA_TEST_SUPPORT - select DVB_CORE + depends on MEDIA_TEST_SUPPORT && DVB_CORE help Dummy skeleton frontend driver. -- 2.25.2
