scsi: scsi_dh_alua: Remove check for ASC 24h in alua_rtpg()

Some arrays return ILLEGAL_REQUEST with ASC 00h if they don't support the
RTPG extended header so remove the check for INVALID FIELD IN CDB.

Link: https://lore.kernel.org/r/20210331201154.20348-1-emilne@redhat.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 7438ed4..e6fde27 100644 (file)
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -579,10 +579,11 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
                 * even though it shouldn't according to T10.
                 * The retry without rtpg_ext_hdr_req set
                 * handles this.
+                * Note:  some arrays return a sense key of ILLEGAL_REQUEST
+                * with ASC 00h if they don't support the extended header.
                 */
                if (!(pg->flags & ALUA_RTPG_EXT_HDR_UNSUPP) &&
-                   sense_hdr.sense_key == ILLEGAL_REQUEST &&
-                   sense_hdr.asc == 0x24 && sense_hdr.ascq == 0) {
+                   sense_hdr.sense_key == ILLEGAL_REQUEST) {
                        pg->flags |= ALUA_RTPG_EXT_HDR_UNSUPP;
                        goto retry;
                }