Hi Mauro, After merging the v4l-dvb tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/built-in.o: In function `sms_ir_event': (.text+0x129b95): undefined reference to `ir_raw_event_store' drivers/built-in.o: In function `sms_ir_event': (.text+0x129bb4): undefined reference to `ir_raw_event_handle' drivers/built-in.o: In function `sms_ir_init': (.text+0x129bec): undefined reference to `smscore_get_board_id' drivers/built-in.o: In function `sms_ir_init': (.text+0x129c17): undefined reference to `rc_allocate_device' drivers/built-in.o: In function `sms_ir_init': (.text+0x129cac): undefined reference to `sms_get_board' drivers/built-in.o: In function `sms_ir_init': (.text+0x129d41): undefined reference to `sms_get_board' drivers/built-in.o: In function `sms_ir_init': (.text+0x129d8c): undefined reference to `rc_register_device' drivers/built-in.o: In function `sms_ir_init': (.text+0x129dc3): undefined reference to `rc_free_device' drivers/built-in.o: In function `sms_ir_exit': (.text+0x129e15): undefined reference to `rc_unregister_device' Caused (I think) by commit fdd1eeb49d36 ("[media] siano: allow compiling it without RC support"). In this build, CONFIG_SMS_SIANO_RC=y and CONFIG_RC_CORE=m . I have used the v4l-dvb tree from next-20121026 again today. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au