Re: [PATCH bpf-next v3 3/6] bpf: Add a bpf_snprintf helper

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On Wed, Apr 14, 2021 at 11:30 AM Florent Revest <revest@xxxxxxxxxxxx> wrote:
>
> Hey Geert! :)
>
> On Wed, Apr 14, 2021 at 8:02 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> > On Wed, Apr 14, 2021 at 9:41 AM Andrii Nakryiko
> > <andrii.nakryiko@xxxxxxxxx> wrote:
> > > On Mon, Apr 12, 2021 at 8:38 AM Florent Revest <revest@xxxxxxxxxxxx> wrote:
> > > > +       fmt = (char *)fmt_addr + fmt_map_off;
> > > > +
> > >
> > > bot complained about lack of (long) cast before fmt_addr, please address
> >
> > (uintptr_t), I assume?
>
> (uintptr_t) seems more correct to me as well. However, I just had a
> look at the rest of verifier.c and (long) casts are already used
> pretty much everywhere whereas uintptr_t isn't used yet.
> I'll send a v4 with a long cast for the sake of consistency with the
> rest of the verifier.

right, I don't care about long or uintptr_t, both are guaranteed to
work, I just remember seeing a lot of code with (long) cast. I have no
preference.



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