[PATCH 5.11 086/210] scsi: target: iscsi: Fix zero tag inside a trace event

[Greg Kroah-Hartman]

From: Roman Bolshakov <r.bolshakov@xxxxxxxxx>

commit 0352c3d3959a6cf543075b88c7e662fd3546f12e upstream.

target_sequencer_start event is triggered inside target_cmd_init_cdb().
se_cmd.tag is not initialized with ITT at the moment so the event always
prints zero tag.

Link: https://lore.kernel.org/r/20210403215415.95077-1-r.bolshakov@xxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx # 5.10+
Reviewed-by: Mike Christie <michael.christie@xxxxxxxxxx>
Signed-off-by: Roman Bolshakov <r.bolshakov@xxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/target/iscsi/iscsi_target.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1166,6 +1166,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_c
 
 	target_get_sess_cmd(&cmd->se_cmd, true);
 
+	cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
 	cmd->sense_reason = target_cmd_init_cdb(&cmd->se_cmd, hdr->cdb);
 	if (cmd->sense_reason) {
 		if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
@@ -1180,8 +1181,6 @@ int iscsit_setup_scsi_cmd(struct iscsi_c
 	if (cmd->sense_reason)
 		goto attach_cmd;
 
-	/* only used for printks or comparing with ->ref_task_tag */
-	cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
 	cmd->sense_reason = target_cmd_parse_cdb(&cmd->se_cmd);
 	if (cmd->sense_reason)
 		goto attach_cmd;