[PATCHv2] nvme: enhance cns version checking

[Christoph Hellwig]

On Thu, Oct 17, 2024 at 11:12:31AM -0700, Keith Busch wrote:
> +	if (ctrl->vs >= NVME_VS(1, 1, 0) &&
> +	    (!(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS)))

No need for the braces around the ngation here.

> +		return cns <= 3;
> +
> +	/*
> +	 * NVMe 1.0 used a single bit for the CNS value.
> +         */
> +	return cns <= 1;

Slightly messed up indentation.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch at lst.de>