scsi: target: core: Kill transport_handle_cdb_direct()

Move the code from transport_handle_cdb_direct() to target_submit() and
have iSCSI call target_submit().
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20230928020907.5730-5-michael.christie@oracle.comSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/target/iscsi/iscsi_target_erl1.c

@@ -948,7 +948,7 @@ int iscsit_execute_cmd(struct iscsit_cmd *cmd, int ooo)
 
 			iscsit_set_unsolicited_dataout(cmd);
 		}
-		return transport_handle_cdb_direct(&cmd->se_cmd);
+		return target_submit(&cmd->se_cmd);
 
 	case ISCSI_OP_NOOP_OUT:
 	case ISCSI_OP_TEXT:

drivers/target/iscsi/iscsi_target_tmr.c

@@ -318,7 +318,7 @@ static int iscsit_task_reassign_complete_read(
 		pr_debug("READ ITT: 0x%08x: t_state: %d never sent to"
 			" transport\n", cmd->init_task_tag,
 			cmd->se_cmd.t_state);
-		transport_handle_cdb_direct(se_cmd);
+		target_submit(se_cmd);
 		return 0;
 	}
 

drivers/target/target_core_transport.c

@@ -1575,12 +1575,14 @@ target_cmd_parse_cdb(struct se_cmd *cmd)
 }
 EXPORT_SYMBOL(target_cmd_parse_cdb);
 
-/*
- * Used by fabric module frontends to queue tasks directly.
- * May only be used from process context.
+/**
+ * target_submit - perform final initialization and submit cmd to LIO core
+ * @cmd: command descriptor to submit
+ *
+ * target_submit_prep or something similar must have been called on the cmd,
+ * and this must be called from process context.
  */
-int transport_handle_cdb_direct(
-	struct se_cmd *cmd)
+int target_submit(struct se_cmd *cmd)
 {
 	sense_reason_t ret;
 
@@ -1640,7 +1642,7 @@ int transport_handle_cdb_direct(
 		transport_generic_request_failure(cmd, ret);
 	return 0;
 }
-EXPORT_SYMBOL(transport_handle_cdb_direct);
+EXPORT_SYMBOL_GPL(target_submit);
 
 sense_reason_t
 transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *sgl,
@@ -1807,19 +1809,6 @@ int target_submit_prep(struct se_cmd *se_cmd, unsigned char *cdb,
 }
 EXPORT_SYMBOL_GPL(target_submit_prep);
 
-/**
- * target_submit - perform final initialization and submit cmd to LIO core
- * @se_cmd: command descriptor to submit
- *
- * target_submit_prep must have been called on the cmd, and this must be
- * called from process context.
- */
-void target_submit(struct se_cmd *se_cmd)
-{
-	transport_handle_cdb_direct(se_cmd);
-}
-EXPORT_SYMBOL_GPL(target_submit);
-
 /**
  * target_submit_cmd - lookup unpacked lun and submit uninitialized se_cmd
  *

include/target/target_core_fabric.h

@@ -175,7 +175,7 @@ int	target_submit_prep(struct se_cmd *se_cmd, unsigned char *cdb,
 		struct scatterlist *sgl, u32 sgl_count,
 		struct scatterlist *sgl_bidi, u32 sgl_bidi_count,
 		struct scatterlist *sgl_prot, u32 sgl_prot_count, gfp_t gfp);
-void	target_submit(struct se_cmd *se_cmd);
+int	target_submit(struct se_cmd *se_cmd);
 sense_reason_t transport_lookup_cmd_lun(struct se_cmd *);
 sense_reason_t target_cmd_init_cdb(struct se_cmd *se_cmd, unsigned char *cdb,
 				   gfp_t gfp);
@@ -188,7 +188,6 @@ int	target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
 		unsigned char *sense, u64 unpacked_lun,
 		void *fabric_tmr_ptr, unsigned char tm_type,
 		gfp_t, u64, int);
-int	transport_handle_cdb_direct(struct se_cmd *);
 sense_reason_t	transport_generic_new_cmd(struct se_cmd *);
 
 void	target_put_cmd_and_wait(struct se_cmd *cmd);