On Thu, Dec 15, 2022 at 9:13 PM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > > On Thu, 15 Dec 2022 14:52:48 -0500 > Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote: > > > Another approach could be to always enable the trace event by default, > > if the CONFIG is turned on. Or do a printk() telling the user about > > the event to enable, so they know why their trace buffer is empty. > > Yeah, that is another option. > > And, yes I need to document it better. I started to, but then decided to > hold off until I get some feedback in case this is rejected. > > > > > Up to you and the ACPI maintainers. ;-) > > I'm going to guess I may not hear back until the new year. I'm fine with > that :-) It's just a couple of days, but still. Personally, I would use a command line option to control the behavior and the Kconfig option to provide its default value. This way it can be flipped without rebuilding the kernel if need be. I would also make the ACPI debug output go into the trace buffer so long as the Kconfig option is not changed or the command line option is not flipped. Cheers!