[PATCH v3 2/2] nvme: enable generic interface (/dev/ngXnY) for unknown command sets

[Keith Busch]

On Wed, Jun 22, 2022 at 03:55:56PM +0200, Joel Granados wrote:
>  static void nvme_validate_or_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
>  {
>  	struct nvme_ns_ids ids = { };
> -	struct nvme_id_ns_cs_indep *id;
> +	struct nvme_id_ns_cs_indep *id_indep;
>  	struct nvme_ns *ns;
> -	bool ready = true;
>  
>  	if (nvme_identify_ns_descs(ctrl, nsid, &ids))
>  		return;
>  
> +	if (nvme_identify_ns_cs_indep(ctrl, nsid, &id_indep))
> +		return;
> +

There's no check that the command-set-independent namespace identification is
supported, so an error should be expected for many controllers instead of
abandoning the namespace.