On Fri, Mar 18, 2022 at 11:01 AM Nick Desaulniers
<ndesaulniers@xxxxxxxxxx> wrote:
>
> On Fri, Mar 18, 2022 at 7:04 AM Andy Shevchenko
> <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> >
> > On Thu, Mar 17, 2022 at 11:11:21AM -0700, Nick Desaulniers wrote:
> > > Our goal is to enable -Wformat for CC=clang. Please see also:
> > > commit cbacb5ab0aa0 ("docs: printk-formats: Stop encouraging use of
> > > unnecessary %h[xudi] and %hh[xudi]")
> >
> > Not that I agree on that commit for %h[h]x
> >
> > signed char ch = -1;
> > printf("%x\n", ch);
> > printf("%hhx\n", ch);
>
> Will print:
> ffffffff
> ff
>
I noticed this. My first thought was to do something akin to:
printf("%x\n", (u8)ch);
but went the route of removing the "h" qualifiers to be more in line
with previous fixes. I will be happy to change this patch if that's
what you would prefer.
-bw
