tree 825bf8e4bd9f6eb3c3e5edf69f4dab84033e946e
parent e572f7cc28a0b01b96ede3f78f448ad55c5e67ad
author James Bottomley <[EMAIL PROTECTED]> Sat, 30 Jul 2005 20:37:55 -0500
committer James Bottomley <[EMAIL PROTECTED](none)> Sat, 30 Jul 2005 20:44:38 
-0500

[SCSI] aic7xxx: fix bug in DT handing

Basically DT isn't reported or handled at all.  The problem is that
lines of code like this:

spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ;

don't do what you think they do when spi_dt is a single bit variable.

Signed-off-by: James Bottomley <[EMAIL PROTECTED]>

 drivers/scsi/aic7xxx/aic7xxx_osm.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c 
b/drivers/scsi/aic7xxx/aic7xxx_osm.c
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1635,9 +1635,9 @@ ahc_send_async(struct ahc_softc *ahc, ch
                spi_period(starget) = tinfo->curr.period;
                spi_width(starget) = tinfo->curr.width;
                spi_offset(starget) = tinfo->curr.offset;
-               spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ;
-               spi_qas(starget) = tinfo->curr.ppr_options & 
MSG_EXT_PPR_QAS_REQ;
-               spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ;
+               spi_dt(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ 
? 1 : 0;
+               spi_qas(starget) = tinfo->curr.ppr_options & 
MSG_EXT_PPR_QAS_REQ ? 1 : 0;
+               spi_iu(starget) = tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ 
? 1 : 0;
                spi_display_xfer_agreement(starget);
                break;
        }
@@ -2435,8 +2435,10 @@ static void ahc_linux_set_dt(struct scsi
        if (dt) {
                period = 9;     /* 12.5ns is the only period valid for DT */
                ppr_options |= MSG_EXT_PPR_DT_REQ;
-       } else if (period == 9)
+       } else if (period == 9) {
                period = 10;    /* if resetting DT, period must be >= 25ns */
+               ppr_options &= ~MSG_EXT_PPR_DT_REQ;
+       }
 
        ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                            starget->channel + 'A', ROLE_INITIATOR);
-
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