[PATCH] nvme: don't apply NVME_QUIRK_DEALLOCATE_ZEROES when DSM is not supported

[Keith Busch]

On Wed, Nov 27, 2024 at 07:42:18AM +0100, Christoph Hellwig wrote:
> Commit 63dfa1004322 ("nvme: move NVME_QUIRK_DEALLOCATE_ZEROES out of
> nvme_config_discard") started applying the NVME_QUIRK_DEALLOCATE_ZEROES
> quirk even then the Dataset Management is not supported.  It turns out
> that there versions of these old Intel SSDs that have DSM support
> disabled in the firmware, which will now lead to errors everytime
> a Write Zeroes command is issued.  Fix this by checking for DSM support
> before applying the quirk.
> 
> Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi at oracle.com>
> Fixes: 63dfa1004322 ("nvme: move NVME_QUIRK_DEALLOCATE_ZEROES out of nvme_config_discard")
> Tested-by: Saeed Mirzamohammadi <saeed.mirzamohammadi at oracle.com>
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Thanks, applied to nvme-6.13.