On Sat, May 30, 2020 at 08:14:34AM +0100, Matthew Garrett wrote: > On Sat, May 30, 2020 at 08:33:50AM +0200, Heiner Kallweit wrote: > > > It *was* default y. This changed with a914ff2d78ce ("PCI/ASPM: Don't > > select CONFIG_PCIEASPM by default") and that's what triggered the > > problem. If there's no easy solution, then maybe it's best to revert > > the change for now. > > Oh, sorry, I was looking at mainline. CONFIG_PCIEASPM should > *definitely* be enabled by default - platforms expect the OS to support > it. If we want to get rid of default y then I think it'd make more sense > to have a CONFIG_DISABLE_PCIEASPM that's under EXPERT, and people who > really want to disable the code can do so.
I think the fact that the EXPERT didn't get removed in the above bug is a defintive bug. But I'd go further and think the CONFIG_PCIEASPM option should be removed entirely. There is absolutely no good reason to not build this small amount of code if PCIe support is enabled.