[PATCH 5.12 205/384] nvmet: return proper error code from discovery ctrl

From: Greg Kroah-Hartman
Date: Mon May 10 2021 - 08:23:02 EST


From: Hou Pu <houpu.main@xxxxxxxxx>

[ Upstream commit 79695dcd9ad4463a82def7f42960e6d7baa76f0b ]

Return NVME_SC_INVALID_FIELD from discovery controller like normal
controller when executing identify or get log page command.

Signed-off-by: Hou Pu <houpu.main@xxxxxxxxx>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/nvme/target/discovery.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c
index 682854e0e079..4845d12e374a 100644
--- a/drivers/nvme/target/discovery.c
+++ b/drivers/nvme/target/discovery.c
@@ -178,12 +178,14 @@ static void nvmet_execute_disc_get_log_page(struct nvmet_req *req)
if (req->cmd->get_log_page.lid != NVME_LOG_DISC) {
req->error_loc =
offsetof(struct nvme_get_log_page_command, lid);
- status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
+ status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
goto out;
}

/* Spec requires dword aligned offsets */
if (offset & 0x3) {
+ req->error_loc =
+ offsetof(struct nvme_get_log_page_command, lpo);
status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
goto out;
}
@@ -250,7 +252,7 @@ static void nvmet_execute_disc_identify(struct nvmet_req *req)

if (req->cmd->identify.cns != NVME_ID_CNS_CTRL) {
req->error_loc = offsetof(struct nvme_identify, cns);
- status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
+ status = NVME_SC_INVALID_FIELD | NVME_SC_DNR;
goto out;
}

--
2.30.2