From: Damien Le Moal damien.lemoal@opensource.wdc.com
[ Upstream commit 8c098aa00118c35108f0c19bd3cdc45e11574948 ]
The identify command with cns set to NVME_ID_CNS_NS does not directly depend on the command set. The NVMe specifications is rather confusing here as it appears that this command only applies to the NVM command set. However, footnote 8 of Figure 273 in the NVMe 2.0 base specifications clearly state that this command applies to NVM command sets that support logical blocks, that is, NVM and ZNS. Both the NVM and ZNS command set specifications also list this identify as mandatory.
The command handling should thus not look at the csi field since it is defined as unused for this command. Given that we do not support the KV command set, simply remove the csi switch-case for that command handling and call directly nvmet_execute_identify_ns() in nvmet_execute_identify().
Fixes: ab5d0b38c047 ("nvmet: add Command Set Identifier support") Signed-off-by: Damien Le Moal damien.lemoal@opensource.wdc.com Reviewed-by: Chaitanya Kulkarni kch@nvidia.com Tested-by: Chaitanya Kulkarni kch@nvidia.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/nvme/target/admin-cmd.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 80099df37314a..a982f925dfcef 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -692,13 +692,8 @@ static void nvmet_execute_identify(struct nvmet_req *req)
switch (req->cmd->identify.cns) { case NVME_ID_CNS_NS: - switch (req->cmd->identify.csi) { - case NVME_CSI_NVM: - return nvmet_execute_identify_ns(req); - default: - break; - } - break; + nvmet_execute_identify_ns(req); + return; case NVME_ID_CNS_CS_NS: if (IS_ENABLED(CONFIG_BLK_DEV_ZONED)) { switch (req->cmd->identify.csi) {