scsi: dc395x: Call scsi_done() directly

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Link: https://lore.kernel.org/r/20211007202923.2174984-29-bvanassche@acm.orgSigned-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/dc395x.c

@@ -995,8 +995,6 @@ static int dc395x_queue_command_lck(struct scsi_cmnd *cmd, void (*done)(struct s
 		goto complete;
 	}
 
-	/* set callback and clear result in the command */
-	cmd->scsi_done = done;
 	set_host_byte(cmd, DID_OK);
 	set_status_byte(cmd, SAM_STAT_GOOD);
 
@@ -3336,7 +3334,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		dprintkl(KERN_ERR, "srb_done: ERROR! Completed cmd with tmp_srb\n");
 	}
 
-	cmd->scsi_done(cmd);
+	scsi_done(cmd);
 	waiting_process_next(acb);
 }
 
@@ -3367,7 +3365,7 @@ static void doing_srb_done(struct AdapterCtlBlk *acb, u8 did_flag,
 			if (force) {
 				/* For new EH, we normally don't need to give commands back,
 				 * as they all complete or all time out */
-				p->scsi_done(p);
+				scsi_done(p);
 			}
 		}
 		if (!list_empty(&dcb->srb_going_list))
@@ -3394,7 +3392,7 @@ static void doing_srb_done(struct AdapterCtlBlk *acb, u8 did_flag,
 			if (force) {
 				/* For new EH, we normally don't need to give commands back,
 				 * as they all complete or all time out */
-				cmd->scsi_done(cmd);
+				scsi_done(cmd);
 			}
 		}
 		if (!list_empty(&dcb->srb_waiting_list))