On Mon, Dec 27, 2021 at 05:42:46PM +0100, Niklas Schnelle wrote: > --- a/drivers/pci/Kconfig > +++ b/drivers/pci/Kconfig > @@ -23,6 +23,17 @@ menuconfig PCI > > if PCI > > +config LEGACY_PCI > + bool "Enable support for legacy PCI devices" > + depends on HAVE_PCI > + help > + This option enables support for legacy PCI devices. This includes > + PCI devices attached directly or via a bridge on a PCI Express bus. > + It also includes compatibility features on PCI Express devices which > + make use of legacy I/O spaces. All you really care about is the "legacy" I/O spaces here, this isn't tied to PCI specifically at all, right? So why not just have a OLD_STYLE_IO config option or something like that, to show that it's the i/o functions we care about here, not PCI at all? And maybe not call it "old" or "legacy" as time constantly goes forward, just describe it as it is, "DIRECT_IO"? thanks, greg k-h
