[PATCH] nvmet: remove unsupported command noise

[Keith Busch]

Nothing can stop a host from submitting invalid commands. The target
just needs to respond with an appropriate status, but that's not a
target error. Demote invalid command messages to the debug level so
these events don't spam the kernel logs.

Reported-by: Yi Zhang <yi.zhang at redhat.com>
Signed-off-by: Keith Busch <kbusch at kernel.org>
---
 drivers/nvme/target/admin-cmd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index d2a26ff3f7b3..8175b61ae0a3 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -307,7 +307,7 @@ static void nvmet_execute_get_log_page(struct nvmet_req *req)
 	case NVME_LOG_ANA:
 		return nvmet_execute_get_log_page_ana(req);
 	}
-	pr_err("unhandled lid %d on qid %d\n",
+	pr_debug("unhandled lid %d on qid %d\n",
 	       req->cmd->get_log_page.lid, req->sq->qid);
 	req->error_loc = offsetof(struct nvme_get_log_page_command, lid);
 	nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);
@@ -659,7 +659,7 @@ static void nvmet_execute_identify(struct nvmet_req *req)
 		return nvmet_execute_identify_desclist(req);
 	}
 
-	pr_err("unhandled identify cns %d on qid %d\n",
+	pr_debug("unhandled identify cns %d on qid %d\n",
 	       req->cmd->identify.cns, req->sq->qid);
 	req->error_loc = offsetof(struct nvme_identify, cns);
 	nvmet_req_complete(req, NVME_SC_INVALID_FIELD | NVME_SC_DNR);
@@ -977,7 +977,7 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req)
 		return 0;
 	}
 
-	pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode,
+	pr_debug("unhandled cmd %d on qid %d\n", cmd->common.opcode,
 	       req->sq->qid);
 	req->error_loc = offsetof(struct nvme_common_command, opcode);
 	return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
-- 
2.25.4