Re: [tip:core/urgent] WARN_ON_SMP(): Allow use in if() statements on UP

[Linus Torvalds]

On Fri, Mar 25, 2011 at 3:48 AM, tip-bot for Steven Rostedt
<srostedt@xxxxxxxxxx> wrote:
> -# define WARN_ON_SMP(x)                        do { } while (0)
> +# define WARN_ON_SMP(x)                        ({0;})

That's a VERY odd way of writing "0".

Am I missing something subtle?

                        Linus
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