On Thu, Jan 11, 2024 at 12:16:06PM +0000, Sudeep Holla wrote: > On Thu, Jan 11, 2024 at 11:00:12AM +0100, Andrew Jones wrote: > > [...] > > > Also, interestingly, it looks like this ancient line > > > > obj-$(CONFIG_ACPI_PROCESSOR) += processor.o > > > > in drivers/acpi/Makefile should be removed, > > No > > > since there's no drivers/acpi/processor.c file. > > Correct, but .. > > > I guess the make process silently filters object files which don't have > > corresponding source files? > > May be, but I doubt if that is the case here. > > processor.o is just aggregation of all processor_*.o and this will be > the processor.ko when built as a module. Oh, I see. I had tried looking for a processor.o after building, to see if it was something like that, but it still didn't appear. It didn't occur to me to also try ACPI_PROCESSOR as a module. I'll go put my head in some sand now. Thanks, drew