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From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
To: linux-nvme@lists.infradead.org
Cc: hch@lst.de, sagi@grimberg.me,
	Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Subject: [PATCH V2 1/3] nvmet: demote discovery cmd parse err msg to debug
Date: Mon, 10 May 2021 12:15:36 -0700	[thread overview]
Message-ID: <20210510191538.38306-2-chaitanya.kulkarni@wdc.com> (raw)
In-Reply-To: <20210510191538.38306-1-chaitanya.kulkarni@wdc.com>

Host can send invalid commands and flood the target with error messages
for the discovery controller. Demote the error message from pr_err() to
pr_debug( in nvmet_parse_discovery_cmd(). 

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
 drivers/nvme/target/discovery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c
index 4845d12e374a..fc3645fc2c24 100644
--- a/drivers/nvme/target/discovery.c
+++ b/drivers/nvme/target/discovery.c
@@ -379,7 +379,7 @@ u16 nvmet_parse_discovery_cmd(struct nvmet_req *req)
 		req->execute = nvmet_execute_disc_identify;
 		return 0;
 	default:
-		pr_err("unhandled cmd %d\n", cmd->common.opcode);
+		pr_debug("unhandled cmd %d\n", cmd->common.opcode);
 		req->error_loc = offsetof(struct nvme_common_command, opcode);
 		return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
 	}
-- 
2.22.1


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  reply	other threads:[~2021-05-10 19:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 19:15 [PATCH V2 0/3] nvemt: demote high frequency err msg to debug Chaitanya Kulkarni
2021-05-10 19:15 ` Chaitanya Kulkarni [this message]
2021-05-10 19:15 ` [PATCH V2 2/3] nvmet: use helper to remove the duplicate code Chaitanya Kulkarni
2021-05-10 19:15 ` [PATCH V2 3/3] nvmet: demote fabrics cmd parse err msg to debug Chaitanya Kulkarni
2021-05-11 16:34 ` [PATCH V2 0/3] nvemt: demote high frequency " Christoph Hellwig
2021-05-11 21:32   ` Chaitanya Kulkarni

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