[PATCH v5 29/35] scsi: Have scsi-ml retry scsi_mode_sense errors

[Mike Christie <michael.christie@oracle.com>]

This has scsi_mode_sense have scsi-ml retry errors instead of driving them
itself.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
 drivers/scsi/scsi_lib.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index e9b19fa939eb..f19bc3a7ef59 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2160,8 +2160,18 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
 	unsigned char cmd[12];
 	int use_10_for_ms;
 	int header_length;
-	int result, retry_count = retries;
+	int result;
 	struct scsi_sense_hdr my_sshdr;
+	struct scsi_failure failures[] = {
+		{
+			.sense = UNIT_ATTENTION,
+			.asc = SCMD_FAILURE_ASC_ANY,
+			.ascq = SCMD_FAILURE_ASCQ_ANY,
+			.allowed = retries,
+			.result = SAM_STAT_CHECK_CONDITION,
+		},
+		{},
+	};
 
 	memset(data, 0, sizeof(*data));
 	memset(&cmd[0], 0, 12);
@@ -2203,7 +2213,8 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
 					.buf_len = len,
 					.sshdr = sshdr,
 					.timeout = timeout,
-					.retries = retries }));
+					.retries = retries,
+					.failures = failures }));
 	if (result < 0)
 		return result;
 
@@ -2230,12 +2241,6 @@ scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
 					goto retry;
 				}
 			}
-			if (scsi_status_is_check_condition(result) &&
-			    sshdr->sense_key == UNIT_ATTENTION &&
-			    retry_count) {
-				retry_count--;
-				goto retry;
-			}
 		}
 		return -EIO;
 	}
-- 
2.25.1