From: Don Brace <don.brace@microsemi.com>
Date: Thu, 4 May 2017 17:50:50 -0500
Subject: scsi: hpsa: do not get enclosure info for external devices
Git-commit: 5ac517b8a2c592a3a6e3928de7b868c52b200444
Patch-mainline: v4.13-rc1
References: bsc#1022600 fate#321928

external shelves do not support BMICs.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Martin Wilck <mwilck@suse.com>
---
 drivers/scsi/hpsa.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3364,6 +3364,11 @@ static void hpsa_get_enclosure_info(stru
 
 	bmic_device_index = GET_BMIC_DRIVE_NUMBER(&rle->lunid[0]);
 
+	if (encl_dev->target == -1 || encl_dev->lun == -1) {
+		rc = IO_OK;
+		goto out;
+	}
+
 	if (bmic_device_index == 0xFF00 || MASKED_DEVICE(&rle->lunid[0])) {
 		rc = IO_OK;
 		goto out;