From e4862fedbc37a2c242824b100101f8e6e8488748 Mon Sep 17 00:00:00 2001 From: James Bottomley <James.Bottomley@steeleye.com> Date: Fri, 6 May 2005 13:14:48 -0500 Subject: [PATCH] [SCSI] correct the sym2 period setting routines There's a slight bug in the routines in that if the period requires dt, then the routine will unconditionally set it. DT may only be set if Wide is also set, so this turns back on the wide bit. For domain validation to work correctly, we need to observe the wide bit absolutely. Acked by: Matthew Wilcox <willy@debian.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> --- drivers/scsi/sym53c8xx_2/sym_glue.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 5ff83d214f128e..5b07c6ec3eccbc 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -2038,8 +2038,9 @@ static void sym2_set_period(struct scsi_target *starget, int period) struct sym_hcb *np = sym_get_hcb(shost); struct sym_tcb *tp = &np->target[starget->id]; - /* have to have DT for these transfers */ - if (period <= np->minsync) + /* have to have DT for these transfers, but DT will also + * set width, so check that this is allowed */ + if (period <= np->minsync && spi_width(starget)) tp->tgoal.dt = 1; tp->tgoal.period = period; -- GitLab