[PATCH 13/13] nvme: introduce generic per-namespace chardev

[Christoph Hellwig]

On Fri, Apr 09, 2021 at 04:29:01PM +0900, Minwoo Im wrote:
> Tested with namespace-specific admin commmand (Identify Namespace).  And
> it fails with invalid IOCTl because we don't have a route to the
> controller IOCTL for the generic chrdev.

Yes, that is intentional, as supporting the per-controller ioctls
on the per-namespace devices is a mess.