On Tue, 2014-03-18 at 13:55 +0100, Geert Uytterhoeven wrote:
> On Tue, Mar 18, 2014 at 1:45 PM, Joe Perches <j...@perches.com> wrote:
Hi Geert.
> > #define dprintk(flg, fmt, ...) \
> > do { if (0) pr_debug(fmt, ##__VA_ARGS__); } while (0)
>
> Na, no_printk():
>
> #define dprintk(flg, fmt, ...) no_printk(fmt, ##__VA_ARGS__)
Fine, but with a correction.
no_printk keeps all side effects like
performing any function calls made by the
statement or accessing any volatiles.
Using
do { if (0) no_printk(fmt, ##__VA_ARGS__); } while (0)
does not have any side-effects.
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