On Tue, Jun 14, 2011 at 09:30:47PM -0700, H. Peter Anvin wrote: > On 06/14/2011 02:33 PM, Arnd Bergmann wrote: > >> > >> Why on earth restrict it like that? It's just a device driver, like > >> more or less any other device driver... > > > > I'd say any other classic ISA/PC driver, including floppy, gameport or > > serial-8250. One problem with these is that we never fully worked out > > the dependencies for these, which we probably should. CONFIG_ISA > > generally means ISA add-on cards, but that might not be enabled for > > platforms that have a pc-parport but no ISA slots. > > > > OK, serial-8250 is clearly just plain wrong, since the 8250 series UARTs > are ubiquitous across just about every platform. > > Floppy is special (in the short bus sense), since it is closely tied to > ISA DMA. Conditionalizing this on ISA DMA makes total sense. No it doesn't. It depends on the ISA DMA API, not that the machine has ISA DMA. I have a platform which has no ISA DMA but uses the floppy driver. Please don't break it.
