On Wed, Apr 09, 2008 at 11:09:24AM -0700, Inaky Perez-Gonzalez wrote: > On Tuesday 08 April 2008, Andi Kleen wrote: > > > > version: I anticipate the wimax API exported to user space is > > > going to undergo a lot of changes while we all agree on what > > > is the best interface. Because things might break, I want to > > > make sure user space stuff can detect that and fail cleanly. > > > Hence the versioning. > > > > It's still a bad way to do that (I agree with Stephen on that). > > Was also always a mess on wireless. > > > > If you don't want expandable TLAs another better alternative to > > versions is ext2 style compatible/incompatible feature bitmaps. > > Ain't that another way of saying versions? Sorry guys, but I am It's a related way, but an actually sane way. With compat/incompat bitmaps user space can actually make a educated decision if it should fail or not -Andi