* Boaz Harrosh <bharrosh@panasas.com> wrote:
quoted text > Ingo Molnar wrote:
> > * Boaz Harrosh <bharrosh@panasas.com> wrote:
> >
> >> If the user of virtio_has_feature() must pass a compile-time constant
> >> then it must be converted to a MACRO, and then the BUILD_BUG_ON will
> >> work. Or it should be changed to a BUG_ON() if fbit is a runtime
> >> variable.
> >
>
> The use of __builtin_constant_p in inline functions is broken. This is
> because it will give different results depending on the -O level used.
> So I think that using it in the Kernel with inlines is plain broken.
> And should be discouraged.
ok - that's convincing, so your approach is superior to my hack on
multiple levels.
Could you please (re-)send your patch(es) with a changelog, etc., so
that i can apply it and drop my patches?
Thanks,
Ingo
--
unsubscribe notice To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
majordomo@vger.kernel.org
More majordomo info at
http://vger.kernel.org/majordomo-info.html
Please read the FAQ at
http://www.tux.org/lkml/
Messages in current thread:
Re: [PATCH] debug: fix BUILD_BUG_ON() for non-constant exp ... , Ingo Molnar , (Thu Aug 21, 5:17 am)