scsi: libsas: Delete sas_ssp_task.retry_count

Since libsas was introduced in commit 2908d77 ("[SCSI] aic94xx: new
driver"), sas_ssp_task.retry_count is only ever set, so delete it.

The aic94xx driver also had its own retry_count definition in struct scb
sub-structs, which may have caused a mix-up.

Signed-off-by: John Garry <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Jason Yan <[email protected]>
Reviewed-by: Damien Le Moal <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: johnpgarry

drivers/scsi/libsas/sas_ata.c

@@ -201,7 +201,6 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc)
 		task->data_dir = qc->dma_dir;
 	}
 	task->scatter = qc->sg;
-	task->ata_task.retry_count = 1;
 	qc->lldd_task = task;
 
 	task->ata_task.use_ncq = ata_is_ncq(qc->tf.protocol);

drivers/scsi/libsas/sas_scsi_host.c

@@ -142,7 +142,6 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd,
 	task->dev = dev;
 	task->task_proto = task->dev->tproto; /* BUG_ON(!SSP) */
 
-	task->ssp_task.retry_count = 1;
 	int_to_scsilun(cmd->device->lun, &lun);
 	memcpy(task->ssp_task.LUN, &lun.scsi_lun, 8);
 	task->ssp_task.task_attr = TASK_ATTR_SIMPLE;

include/scsi/libsas.h

@@ -563,8 +563,6 @@ enum task_attribute {
 };
 
 struct sas_ssp_task {
-	u8     retry_count;	  /* hardware retry, should be > 0 */
-
 	u8     LUN[8];
 	u8     enable_first_burst:1;
 	enum   task_attribute task_attr;