On Wed, Sep 06, 2017 at 11:06:04AM -0400, Keith Busch wrote: > Ugh, even with this quirk, new lightnvm device will be broken for > all existing kernels. This sort of thing really could benefit from a > standard's defined capability or command set supported bit to distinguish > lightnvm devices. Lacking that, this looks like the only thing we can > do at the moment. I told them to register a different class code for these devices a long time ago, but nothing happened. Then again I might underestimate the complexity of getting a class code..