diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2018-09-27 11:17:11 +1000 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-09-28 02:18:41 -0400 |
| commit | 7c8ed783c2faa1e3f741844ffac41340338ea0f4 (patch) | |
| tree | 7f667dd4bf85933573e1355056d262ee6e4055df /drivers/scsi/NCR5380.c | |
| parent | dad8261e643849ea134c7cd5c8e794e31d93b9eb (diff) | |
| download | linux-stable-7c8ed783c2faa1e3f741844ffac41340338ea0f4.tar.gz linux-stable-7c8ed783c2faa1e3f741844ffac41340338ea0f4.tar.bz2 linux-stable-7c8ed783c2faa1e3f741844ffac41340338ea0f4.zip | |
scsi: NCR5380: Withhold disconnect privilege for REQUEST SENSE
This is mostly needed because an AztecMonster II target has been observed
disconnecting REQUEST SENSE commands and then failing to reselect properly.
Suggested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/NCR5380.c')
| -rw-r--r-- | drivers/scsi/NCR5380.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 7be1ba2b9e4e..5226164cfa65 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -936,6 +936,8 @@ static bool NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd) int len; int err; bool ret = true; + bool can_disconnect = instance->irq != NO_IRQ && + cmd->cmnd[0] != REQUEST_SENSE; NCR5380_dprint(NDEBUG_ARBITRATION, instance); dsprintk(NDEBUG_ARBITRATION, instance, "starting arbitration, id = %d\n", @@ -1159,7 +1161,7 @@ static bool NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd) dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n", scmd_id(cmd)); - tmp[0] = IDENTIFY(((instance->irq == NO_IRQ) ? 0 : 1), cmd->device->lun); + tmp[0] = IDENTIFY(can_disconnect, cmd->device->lun); len = 1; data = tmp; |