[PATCH] nvme: simplify stripe quirk

[Keith Busch]

On Fri, Dec 16, 2016 at 12:07:53AM -0800, Christoph Hellwig wrote:
> So an OEM can take the Intel Cards, and stuff their own values into the
> vendor specific fields?  This sounds bad as you can't rely on the
> existing quirks in any old Linux version (plus FreeBSD or spdk for that
> matter any more).

Yes, these are the same concerns I've raised, and a reason we're in the
process of standardizing the feature.

It's fortunately not common for an OEM to break the decoding assumptions
we were promised, but the problem exists. I think this patch is the best
I can do for these devices.