Re: [PATCH] scsi: fix the build warning

[Joe Perches <joe@perches.com>]

On Thu, 2013-08-22 at 09:59 +0800, Zhi Yong Wu wrote:
> On Thu, Aug 22, 2013 at 9:55 AM, Joe Perches <joe@perches.com> wrote:
> > On Wed, 2013-08-21 at 21:25 -0400, Martin K. Petersen wrote:
> >> >>>>> "Joe" == Joe Perches <joe@perches.com> writes:
> >>
> >> Joe> I don't get this build warning in the first place and I think the
> >> Joe> scsi_debug file is quite old and probably doesn't need to be
> >> Joe> changed at all.
> >>
> >> guard isn't a boolean, it selects the checksum algorithm used.
> >
> > OK, maybe this then...
> > ---
> >  drivers/scsi/scsi_debug.c | 2 +-
> >  1 file changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
> > index cb4fefa..6fc2831 100644
> > --- a/drivers/scsi/scsi_debug.c
> > +++ b/drivers/scsi/scsi_debug.c
> > @@ -3312,7 +3312,7 @@ static int __init scsi_debug_init(void)
> >                 return -EINVAL;
> >         }
> >
> > -       if (scsi_debug_guard > 1) {
> > +       if (scsi_debug_guard < 0 || scsi_debug_guard > 1) {
> I don't think that it can fix that issue.

No, it doesn't fix any compile warning.  Your patch, if
it's needed, would still apply.

This patch suggestion fixes an issue where debug_guard
could be set to a negative value.

I didn't sign it, it's up to Martin or I suppose James
to actually want it done.

cheers, Joe