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nvme-core: check ctrl css before setting up zns

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[ Upstream commit 0ec84df495 ]

Ensure multiple Command Sets are supported before starting to setup a
ZNS namespace.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
[hch: move the check around a bit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chaitanya Kulkarni
2021-03-08 20:58:21 -08:00
committed by Greg Kroah-Hartman
parent 9083dc773d
commit c7b3f6db97
1 changed files with 6 additions and 0 deletions
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6
drivers/nvme/host/core.c
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@@ -4019,6 +4019,12 @@ static void nvme_validate_or_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
nsid);
break;
}
if (!nvme_multi_css(ctrl)) {
dev_warn(ctrl->device,
"command set not reported for nsid: %d\n",
ns->head->ns_id);
break;
}
nvme_alloc_ns(ctrl, nsid, &ids);
break;
default: