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| author | Mike Christie <michael.christie@oracle.com> | 2022-08-11 20:00:18 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-09-06 22:05:58 -0400 |
| commit | 00903af94d8a1359584fdd6284be87d29f5a022d (patch) | |
| tree | 6c37b6b84869893db208b08f828360ab7ebb9654 /drivers/xen | |
| parent | e699bb9765cd447ab477e9e888ddbab347dcf35a (diff) | |
| download | linux-00903af94d8a1359584fdd6284be87d29f5a022d.tar.gz | |
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/xen')
| -rw-r--r-- | drivers/xen/xen-scsiback.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 7a0c93acc2c576..e98c88a960d87b 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -333,18 +333,6 @@ static int32_t scsiback_result(int32_t result) case DID_TRANSPORT_FAILFAST: host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_FAILFAST; break; - case DID_TARGET_FAILURE: - host_status = XEN_VSCSIIF_RSLT_HOST_TARGET_FAILURE; - break; - case DID_NEXUS_FAILURE: - host_status = XEN_VSCSIIF_RSLT_HOST_NEXUS_FAILURE; - break; - case DID_ALLOC_FAILURE: - host_status = XEN_VSCSIIF_RSLT_HOST_ALLOC_FAILURE; - break; - case DID_MEDIUM_ERROR: - host_status = XEN_VSCSIIF_RSLT_HOST_MEDIUM_ERROR; - break; case DID_TRANSPORT_MARGINAL: host_status = XEN_VSCSIIF_RSLT_HOST_TRANSPORT_MARGINAL; break; |