nvmet: fix Identify Active Namespace ID list handling

The identify command with cns set to NVME_ID_CNS_NS_ACTIVE_LIST does
not depend on the command set. The execution of this command should
thus not look at the csi field specified in the command. Simplify
nvmet_execute_identify() to directly call
nvmet_execute_identify_nslist() without the csi switch-case.

Fixes: ab5d0b38 ("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>

drivers/nvme/target/admin-cmd.c

@@ -718,13 +718,8 @@ static void nvmet_execute_identify(struct nvmet_req *req)
 		}
 		break;
 	case NVME_ID_CNS_NS_ACTIVE_LIST:
-		switch (req->cmd->identify.csi) {
-		case NVME_CSI_NVM:
-			return nvmet_execute_identify_nslist(req);
-		default:
-			break;
-		}
-		break;
+		nvmet_execute_identify_nslist(req);
+		return;
 	case NVME_ID_CNS_NS_DESC_LIST:
 		if (nvmet_handle_identify_desclist(req) == true)
 			return;