On Mon, 2012-05-14 at 07:00 +0200, Hiroshi Doyu wrote:
> Hi Joe,
> 
> Joe Perches <[email protected]> wrote @ Sat, 12 May 2012 17:31:35 +0200:
> 
> > On Sat, 2012-05-12 at 12:52 +0200, Hiroshi Doyu wrote:
> > > Hi,
> > > 
> > > An unclosed "if" statement in the MACRO seems a bit risky, but I don't
> > > have any better/simple solution for this, ATM. Is there any alternative?
> > 
> > maybe something like:
> > 
> > #define dev_ratelimited_level(dev, level, fmt, ...)
> > do {
> >     static DEFINE_RATELIMIT_STATE(_rs,                              \
> >                                   DEFAULT_RATELIMIT_INTERVAL,       \
> >                                   DEFAULT_RATELIMIT_BURST);         \
> >     if (__ratelimit(&_rs))                                          \
> >             dev_##level(fmt, ##__VA_ARGS__);                        \
> > } while (0)
> > 
> > #define dev_emerg_ratelimited(dev, fmt, ...)                                
> > \
> >     dev_ratelimited_level(dev, emerg, fmt, ##__VA_ARGS__)
> > #define dev_alert_ratelimited(dev, fmt, ...)                                
> > \
> >     dev_ratelimited_level(dev, alert, fmt, ##__VA_ARGS__)
> > #define dev_crit_ratelimited(dev, fmt, ...)                         \
> >     dev_ratelimited_level(dev, crit, fmt, ##__VA_ARGS__)
> > #define dev_err_ratelimited(dev, fmt, ...)                          \
> >     dev_ratelimited_level(dev, err, fmt, ##__VA_ARGS__)
> > #define dev_warn_ratelimited(dev, fmt, ...)                         \
> >     dev_ratelimited_level(dev, warn, fmt, ##__VA_ARGS__)
> > #define dev_notice_ratelimited(dev, fmt, ...)                               
> > \
> >     dev_ratelimited_level(dev, notice, fmt, ##__VA_ARGS__)
> > #define dev_info_ratelimited(dev, fmt, ...)                         \
> >     dev_ratelimited_level(dev, info, fmt, ##__VA_ARGS__)
> > #define dev_dbg_ratelimited(dev, fmt, ...)                          \
> >     dev_ratelimited_level(dev, dbg, fmt, ##__VA_ARGS__)
> 
> "dev" isn't handled separately with __VA_ARGS__, and failed to build
> as below:
> 
>   Example:
>     dev_err_ratelimited(&pdev->dev, "%d\n", __LINE__);
>   
>   After preprocessded:
>     do { ... if (___ratelimit(&_rs, __func__)) dev_err("%d\n", 18); } while 
> (0);
> 

Sorry, I was just typing in the email client and
I missed the "dev" argument.

Add "dev" to the dev_##level statement like:

#define dev_ratelimited_level(dev, level, fmt, ...)                     \
do {                                                                    \
        static DEFINE_RATELIMIT_STATE(_rs,                              \
                                      DEFAULT_RATELIMIT_INTERVAL,       \
                                      DEFAULT_RATELIMIT_BURST);         \
        if (__ratelimit(&_rs))                                          \
                dev_##level(dev, fmt, ##__VA_ARGS__);                   \
} while (0)
 

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