Re: [PATCH] audit: avoid -Wempty-body warning

From: Richard Guy Briggs
Date: Mon Mar 22 2021 - 13:59:20 EST


On 2021-03-22 17:28, Arnd Bergmann wrote:
> On Mon, Mar 22, 2021 at 3:33 PM Richard Guy Briggs <rgb@xxxxxxxxxx> wrote:
> > > Change the macros to use the usual "do { } while (0)" instead, and change a
> > > few more that were (void)0, for consistency.
> >
> > So what about audit_put_watch() and audit_get_watch() which are set to
> > {}? (And all of include/linux/audit.h that uses the latter...) Does
> > this only matter if they are the only action called in an if or loop?
>
> I missed those, thanks for pointing it out. I sent a v2 patch now.

Ok, cool, that looks more consistent. Can you answer my question about
include/linux/audit.h and exactly what conditions require
"do { } while (0)" over "{ }"?

> Arnd

- RGB

--
Richard Guy Briggs <rgb@xxxxxxxxxx>
Sr. S/W Engineer, Kernel Security, Base Operating Systems
Remote, Ottawa, Red Hat Canada
IRC: rgb, SunRaycer
Voice: +1.647.777.2635, Internal: (81) 32635