diff options
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 79550908adc..553488015e4 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -2920,14 +2920,9 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd, args.done = done; switch(scsicmd[0]) { - /* no-op's, complete with success */ - case SYNCHRONIZE_CACHE: - case REZERO_UNIT: - case SEEK_6: - case SEEK_10: - case TEST_UNIT_READY: - case FORMAT_UNIT: /* FIXME: correct? */ - ata_scsi_rbuf_fill(&args, ata_scsiop_noop); + /* TODO: worth improving? */ + case FORMAT_UNIT: + ata_scsi_invalid_field(cmd, done); break; case INQUIRY: @@ -2985,6 +2980,20 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd, done(cmd); break; + /* if we reach this, then writeback caching is disabled, + * turning this into a no-op. + */ + case SYNCHRONIZE_CACHE: + /* fall through */ + + /* no-op's, complete with success */ + case REZERO_UNIT: + case SEEK_6: + case SEEK_10: + case TEST_UNIT_READY: + ata_scsi_rbuf_fill(&args, ata_scsiop_noop); + break; + case SEND_DIAGNOSTIC: tmp8 = scsicmd[1] & ~(1 << 3); if ((tmp8 == 0x4) && (!scsicmd[3]) && (!scsicmd[4])) |