scsi: mvsas: Use sas_find_attached_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
mvs_dev_found_notify() 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/20220928070130.3657183-5-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>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/mvsas/mv_sas.c

@@ -1190,23 +1190,16 @@ static int mvs_dev_found_notify(struct domain_device *dev, int lock)
 	mvi_device->sas_device = dev;
 	if (parent_dev && dev_is_expander(parent_dev->dev_type)) {
 		int phy_id;
-		u8 phy_num = parent_dev->ex_dev.num_phys;
-		struct ex_phy *phy;
-		for (phy_id = 0; phy_id < phy_num; phy_id++) {
-			phy = &parent_dev->ex_dev.ex_phy[phy_id];
-			if (SAS_ADDR(phy->attached_sas_addr) ==
-				SAS_ADDR(dev->sas_addr)) {
-				mvi_device->attached_phy = phy_id;
-				break;
-			}
-		}
 
-		if (phy_id == phy_num) {
+		phy_id = sas_find_attached_phy_id(&parent_dev->ex_dev, dev);
+		if (phy_id < 0) {
 			mv_printk("Error: no attached dev:%016llx"
 				"at ex:%016llx.\n",
 				SAS_ADDR(dev->sas_addr),
 				SAS_ADDR(parent_dev->sas_addr));
-			res = -1;
+			res = phy_id;
+		} else {
+			mvi_device->attached_phy = phy_id;
 		}
 	}