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nvme: warn of unhandled effects only once

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We don't need to repeatedly spam the kernel logs with the same warning
about unhandled passthrough IO effects. Just one warning is sufficient
to observe this condition occurs.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Keith Busch 2021-03-17 13:33:41 -07:00 committed by Christoph Hellwig
parent f4b9e6c90c
commit ed4a854b06
1 changed files with 3 additions and 3 deletions
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6
drivers/nvme/host/core.c
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@ -1072,9 +1072,9 @@ u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
if (ns->head->effects)
effects = le32_to_cpu(ns->head->effects->iocs[opcode]);
if (effects & ~(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC))
dev_warn(ctrl->device,
"IO command:%02x has unhandled effects:%08x\n",
opcode, effects);
dev_warn_once(ctrl->device,
"IO command:%02x has unhandled effects:%08x\n",
opcode, effects);
return 0;
}