Re: [PATCH v2 2/2] build_bug.h: remove all dummy BUILD_BUG_ON stubs for sparse

[Luc Van Oostenryck]

On Fri, Nov 16, 2018 at 03:27:25PM +0900, Masahiro Yamada wrote:
> The introduction of these dummy BUILD_BUG_ON stubs dates back to
> commit 903c0c7cdc21 ("sparse: define dummy BUILD_BUG_ON definition
> for sparse"). At that time, BUILD_BUG_ON() was implemented with the
> negative array trick, which Sparse complains about even if the
> condition can be optimized and evaluated to 0 at compile-time.

OK, but from what I understand, the motivation for commit 903c0c7cdc21
was not to avoid false warnings but to avoid having twice the same
warnings: "... So it causes sparse to detect an error too. This
reduces sparse's usefulness.").

I'm not opposed to this patch (on the contrary, I think it's better
to have exactly the same code for GCC than for sparse) but I think
that your commit message need to be adjusted.

Kind regards,
-- Luc