On Thu, 30 Apr 2009 21:31:24 +0000
James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, 2009-04-30 at 09:04 +0300, Sergey Senozhatsky wrote:
> > Trivial: fixing gcc 4.4 compiler warning:
> > drivers/scsi/st.c: In function ‘st_int_ioctl’:
> > drivers/scsi/st.c:2967: warning: suggest parentheses around operand of ‘!’ or change ‘|’ to ‘||’ or ‘!’ to ‘~’
> >
> > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxx>
> >
> > ---
> >
> > diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
> > index eb24efe..2bde8a5 100644
> > --- a/drivers/scsi/st.c
> > +++ b/drivers/scsi/st.c
> > @@ -2964,7 +2964,7 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon
> > !(STp->use_pf & PF_TESTED)) {
> > /* Try the other possible state of Page Format if not
> > already tried */
> > - STp->use_pf = !STp->use_pf | PF_TESTED;
> > + STp->use_pf = (!STp->use_pf) | PF_TESTED;
>
> This just doesn't look right. As I said to the warning reporter, I
> think STp->use_pf |= PF_TESTED; is the correct fix, but I need Kai to
> check this.
yeah, good point. The code looks very confused.
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