Re: [PATCH] Use 'do {} while (0)' for empty flush_tlb_fix_spurious_fault()macro

From: Jesper Juhl
Date: Sat Dec 17 2011 - 20:00:35 EST


On Sat, 17 Dec 2011, Michel Lespinasse wrote:

> On Sat, Dec 17, 2011 at 4:32 PM, Jesper Juhl <jj@xxxxxxxxxxxxx> wrote:
> > If one builds the kernel with -Wempty-body one gets this warning:
> >
> >  mm/memory.c:3432:46: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
> >
> > due to the fact that 'flush_tlb_fix_spurious_fault' is a macro that
> > can sometimes be defined to nothing.
> >
> > Signed-off-by: Jesper Juhl <jj@xxxxxxxxxxxxx>
>
> Looks good to me. I'd be happy with either that or Al's alternative suggestion.
>
> Reviewed-by: Michel Lespinasse <walken@xxxxxxxxxx>
>
Thanks for the review.

I did see Al's suggestion and he does have a point. But since it doesn't
actually matter much in this specific case I'd say "let's just go with
this one - it matches what's done nearly everywhere else".
But, If someone disagrees strongly I'll cook up a different patch. :-)

--
Jesper Juhl <jj@xxxxxxxxxxxxx> http://www.chaosbits.net/
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