Re: How do I printk <type> correctly?

From: Artem Bityutskiy
Date: Wed Oct 29 2008 - 04:01:50 EST


On Tue, 2008-10-28 at 16:11 -0700, Randy Dunlap wrote:
> On Thu, 23 Oct 2008 15:41:33 +0400 Alexey Dobriyan wrote:
>
> > If variable is of Type use printk format specifier.
> > ---------------------------------------------------------
> > int %d or %x
> > unsigned int %u or %x
> > long %ld ot %lx
> > unsigned long %lu or %lx
> > long long %lld or %llx
> > unsigned long long %llu or %llx
> > size_t %zu or %zx
> > ssize_t %zd or %zx
> >
> > Raw pointer value SHOULD be printed with %p.
> >
> > u64 SHOULD be printed with %llu/%llx, (unsigned long long):
> >
> > printk("%llu", (unsigned long long)u64_var);
> >
> > s64 SHOULD be printed with %lld/%llx, (long long):
> >
> > printk("%lld", (long long)s64_var);
> >
> > If type is dependent on config option (sector_t), use format specifier
> > of biggest type and explicitly cast to it.
> >
> > Reminder: sizeof() result is of type size_t.

Do we have this somewhere in Documentation? Would be nice to have it.

--
Best regards,
Artem Bityutskiy (ÐÐÑÑÑÐÐÐ ÐÑÑÑÐ)

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