[PATCH 12/13] nvme: let namespace probing continue for unsupported features

[Christoph Hellwig]

On Fri, Apr 09, 2021 at 07:42:59AM +0900, Keith Busch wrote:
> On Thu, Apr 08, 2021 at 02:08:41PM +0200, Christoph Hellwig wrote:
> > Instead of failing to scan the namespace entirely when unsupported
> > features are detected, just mark the gendisk hidden but allow other
> > access like the upcoming per-namespace character device.
> 
> This part looks fine for what it is, but I thought we were going even
> further by allocating a namespace for the generic char device even if
> its Command Set Indicator was unsupported by the kernel.

We need a currently unpublished TP (don't remember the number offhand)
that adds another new Identify page for that.  So it is on the TODO
list but can't be done yet.