[PATCH] nvme-core: check id->mc before setting NVME_NS_METADATA_SUPPORTED

[Keith Busch]

On Sat, Jun 24, 2023 at 12:35:02PM +0200, Irvin Cote wrote:
> The NVM Command set Identify Namespace Data Structure defines
> the metadata capabilities field (mc) that determines support for
> metadata. Check for the value of this field before enabling the
> NVME_NS_METADATA_SUPPORTED in the nvme_ns data structure.

The MC field is primarily for use when sending a format command to know
what are valid possibilities. If the reported MS and FLBAS are out of
sync with metadata capabilities, then the controller is broken.