scsi: hisi_sas: Use sas_find_attathed_phy_id() instead of open coding it

The attached phy finding is open coded. Replace it with
sas_find_attached_phy_id(). To keep things consistent, the return value of
hisi_sas_dev_found() is also changed to -ENODEV after calling
sas_find_attathed_phy_id() failed.
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20220928070130.3657183-6-yanaijie@huawei.comReviewed-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hisi_sas/hisi_sas_main.c

@@ -792,22 +792,14 @@ static int hisi_sas_dev_found(struct domain_device *device)
 
 	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
 		int phy_no;
-		u8 phy_num = parent_dev->ex_dev.num_phys;
-		struct ex_phy *phy;
 
-		for (phy_no = 0; phy_no < phy_num; phy_no++) {
-			phy = &parent_dev->ex_dev.ex_phy[phy_no];
-			if (SAS_ADDR(phy->attached_sas_addr) ==
-				SAS_ADDR(device->sas_addr))
-				break;
-		}
-
-		if (phy_no == phy_num) {
+		phy_no = sas_find_attached_phy_id(&parent_dev->ex_dev, device);
+		if (phy_no < 0) {
 			dev_info(dev, "dev found: no attached "
 				 "dev:%016llx at ex:%016llx\n",
 				 SAS_ADDR(device->sas_addr),
 				 SAS_ADDR(parent_dev->sas_addr));
-			rc = -EINVAL;
+			rc = phy_no;
 			goto err_out;
 		}
 	}