Quoting Arnd Bergmann (2020-12-03 15:11:40)
> From: Arnd Bergmann <a...@arndb.de>
>
> Functions that are annotated __exit are discarded for built-in drivers,
> but the .remove callback in a device driver must still be kept around
> to allow bind/unbind operations.
>
> There is now a linker warning for the discarded symbol references:
>
> `tmc_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-tmc-core.o: defined in discarded
> section `.exit.text' of drivers/hwtracing/coresight/coresight-tmc-core.o
> `tpiu_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-tpiu.o: defined in discarded section
> `.exit.text' of drivers/hwtracing/coresight/coresight-tpiu.o
> `etb_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-etb10.o: defined in discarded section
> `.exit.text' of drivers/hwtracing/coresight/coresight-etb10.o
> `static_funnel_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-funnel.o: defined in discarded section
> `.exit.text' of drivers/hwtracing/coresight/coresight-funnel.o
> `dynamic_funnel_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-funnel.o: defined in discarded section
> `.exit.text' of drivers/hwtracing/coresight/coresight-funnel.o
> `static_replicator_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-replicator.o: defined in discarded
> section `.exit.text' of drivers/hwtracing/coresight/coresight-replicator.o
> `dynamic_replicator_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-replicator.o: defined in discarded
> section `.exit.text' of drivers/hwtracing/coresight/coresight-replicator.o
> `catu_remove' referenced in section `.data' of
> drivers/hwtracing/coresight/coresight-catu.o: defined in discarded section
> `.exit.text' of drivers/hwtracing/coresight/coresight-catu.o
>
> Remove all those annotations.
>
> Fixes: 8b0cf82677d1 ("coresight: stm: Allow to build coresight-stm as a
> module")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
> ---
Reviewed-by: Stephen Boyd <swb...@chromium.org>
