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

[Keith Busch]

On Fri, Apr 09, 2021 at 07:39:02AM +0200, Christoph Hellwig wrote:
> 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 We need a currently unpublished TP (don't remember the number offhand)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.

Oh, I was thinking if the kernel doesn't have CONFIG_BLK_DEV_ZONED.
That's not necessary for the ng device.