David Brownell wrote: > On Tuesday 21 April 2009, Randy Dunlap wrote: >>> Since its feasible to say 'n' to both we get the compile error. How do >>> we enforce having at least one set? >> Looks like using "choice" without "optional" would do it. >> See Documentation/kbuild/kconfig-language.txt and various examples >> in Kconfig* files. > > That won't quite work ... "at least one" includes "two" > (i.e. a PCI card in little-endian, a native controller > in big-endian). Real-world systems need such configs, > or so I'm told, and that's why their supported. Yes, I see. > Is there maybe a way to force Kconfig to just reject > such illegal configs -- neither option set -- rather > than trying some how to fix it? Not that I know of. cc-ing Sam. > Or maybe ... if neither one is set, have the header > force both on, and issue a warning. That should be doable. We'd prefer to catch it via Kconfig, but that doesn't look promising just now. -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
