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| author | Mike Christie <michael.christie@oracle.com> | 2022-08-12 04:00:18 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-07 05:05:58 +0300 |
| commit | 00903af94d8a1359584fdd6284be87d29f5a022d (patch) | |
| tree | 6c37b6b84869893db208b08f828360ab7ebb9654 /drivers/scsi/xen-scsifront.c | |
| parent | e699bb9765cd447ab477e9e888ddbab347dcf35a (diff) | |
| download | linux-00903af94d8a1359584fdd6284be87d29f5a022d.tar.xz | |
scsi: xen: Drop use of internal host codes
The error codes:
- DID_TARGET_FAILURE
- DID_NEXUS_FAILURE
- DID_ALLOC_FAILURE
- DID_MEDIUM_ERROR
are internal to the SCSI layer. Drivers must not use them because:
1. They are not propagated upwards, so SG IO/passthrough users will not
see an error and think a command was successful.
xen-scsiback will never see this error and should not try to send it.
2. There is no handling for them in scsi_decide_disposition() so if
xen-scsifront were to return the error to the SCSI midlayer then it
kicks off the error handler which is definitely not what we want.
Remove the use from xen-scsifront/back.
Link: https://lore.kernel.org/r/20220812010027.8251-2-michael.christie@oracle.com
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/xen-scsifront.c')
| -rw-r--r-- | drivers/scsi/xen-scsifront.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c index 51afc66e839d..66b316d173b0 100644 --- a/drivers/scsi/xen-scsifront.c +++ b/drivers/scsi/xen-scsifront.c @@ -289,14 +289,6 @@ static unsigned int scsifront_host_byte(int32_t rslt) return DID_TRANSPORT_DISRUPTED; case XEN_VSCSIIF_RSLT_HOST_TRANSPORT_FAILFAST: return DID_TRANSPORT_FAILFAST; - case XEN_VSCSIIF_RSLT_HOST_TARGET_FAILURE: - return DID_TARGET_FAILURE; - case XEN_VSCSIIF_RSLT_HOST_NEXUS_FAILURE: - return DID_NEXUS_FAILURE; - case XEN_VSCSIIF_RSLT_HOST_ALLOC_FAILURE: - return DID_ALLOC_FAILURE; - case XEN_VSCSIIF_RSLT_HOST_MEDIUM_ERROR: - return DID_MEDIUM_ERROR; case XEN_VSCSIIF_RSLT_HOST_TRANSPORT_MARGINAL: return DID_TRANSPORT_MARGINAL; default: |