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scsi: xen-scsifront: Compability status handling 

The Xen guest might run against arbitrary backends, so the driver might
receive a status with driver_byte set. Map these errors to DID_ERROR to be
consistent with recent changes.

Link: https://lore.kernel.org/r/20210427083046.31620-14-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2021-04-27 10:30:19 +02:00 committed by Martin K. Petersen
parent 58bedf351f
commit b840abeffc
1 changed files with 7 additions and 1 deletions
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8
drivers/scsi/xen-scsifront.c
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@ -251,6 +251,7 @@ static void scsifront_cdb_cmd_done(struct vscsifrnt_info *info,
struct scsi_cmnd *sc;
uint32_t id;
uint8_t sense_len;
int result;
id = ring_rsp->rqid;
shadow = info->shadow[id];
@ -261,7 +262,12 @@ static void scsifront_cdb_cmd_done(struct vscsifrnt_info *info,
scsifront_gnttab_done(info, shadow);
scsifront_put_rqid(info, id);
sc->result = ring_rsp->rslt;
result = ring_rsp->rslt;
if (result >> 24)
set_host_byte(sc, DID_ERROR);
else
set_host_byte(sc, host_byte(result));
set_status_byte(sc, result & 0xff);
scsi_set_resid(sc, ring_rsp->residual_len);
sense_len = min_t(uint8_t, VSCSIIF_SENSE_BUFFERSIZE,