Re: [PATCH 3/5] Staging: panel: Remove ULL

From: Willy Tarreau
Date: Tue Dec 29 2015 - 18:35:35 EST


On Tue, Dec 29, 2015 at 03:59:26PM -0500, Ilia Mirkin wrote:
> On Tue, Dec 29, 2015 at 3:08 PM, Ksenija Stanojevic
> <ksenija.stanojevic@xxxxxxxxx> wrote:
> > Remove ULL since it's useless.
> >
> > Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@xxxxxxxxx>
> > ---
> > drivers/staging/panel/panel.c | 12 ++++++------
> > 1 file changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
> > index 7138ee7..6dc3efb 100644
> > --- a/drivers/staging/panel/panel.c
> > +++ b/drivers/staging/panel/panel.c
> > @@ -2047,10 +2047,10 @@ static u8 input_name2mask(const char *name, __u64 *mask, __u64 *value,
> > u8 im, om;
> > __u64 m, v;
> >
> > - om = 0ULL;
> > - im = 0ULL;
> > - m = 0ULL;
> > - v = 0ULL;
> > + om = 0;
> > + im = 0;
> > + m = 0;
> > + v = 0;
> > while (*name) {
> > int in, out, bit, neg;
> >
> > @@ -2076,9 +2076,9 @@ static u8 input_name2mask(const char *name, __u64 *mask, __u64 *value,
> >
> > bit = (out * 5) + in;
> >
> > - m |= 1ULL << bit;
> > + m |= 1 << bit;
>
> m and v are 64-bit, if bit can be >= 32, then you definitely do need
> the ULL here...

If that's it, indeed. I thought they were 8-bit from a previous patch.
I'm sorry for having suggested this cleanup, I've not put my nose in
this code for quite a while I must confess :-/

Regards,
Willy

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