diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2018-09-27 11:17:11 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 18:00:49 +0100 |
| commit | 7717d068005234836bc94b4d0b721e5ad249b06b (patch) | |
| tree | 91cd9b74986b61944add810a2fa84512497c59ae | |
| parent | 9a24e85568a3635f54269f9ddfb6eb0b19f1ceb7 (diff) | |
scsi: NCR5380: Withhold disconnect privilege for REQUEST SENSE
[ Upstream commit 7c8ed783c2faa1e3f741844ffac41340338ea0f4 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 60e051c249a6f..5f26aa2875bd9 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -938,6 +938,8 @@ 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", @@ -1157,7 +1159,7 @@ 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; |