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SubjectRe: [PATCH 2/6] device: Add #define dev_fmt similar to #define pr_fmt
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On Tue, 2018-06-19 at 06:31 -0700, Joe Perches wrote:
> Greg? Ping?
>
> The patches to impi have hit -next and the impi code
> works differently without this patch.

Greg?

You are listed as the maintainer for this subsystem.
Do you want me to get this applied via someone else?

>
> On Wed, 2018-05-09 at 08:15 -0700, Joe Perches wrote:
> > Add a prefixing macro to dev_<level> uses similar to the pr_fmt
> > prefixing macro used in pr_<level> calls.
> >
> > This can help avoid some string duplication in dev_<level> uses.
> >
> > The default, like pr_fmt, is an empty #define dev_fmt(fmt) fmt
> >
> > Rename the existing dev_<level> functions to _dev_<level> and
> > introduce #define dev_<level> _dev_<level> macros that use the
> > new #define dev_fmt
> >
> > Miscellanea:
> >
> > o Consistently use #defines with fmt, ... and ##__VA_ARGS__
> > o Remove unnecessary externs
> >
> > Signed-off-by: Joe Perches <joe@perches.com>
> > ---
> > drivers/base/core.c | 12 +++---
> > include/linux/device.h | 103 ++++++++++++++++++++++++++++---------------------
> > 2 files changed, 64 insertions(+), 51 deletions(-)
> >
> > diff --git a/drivers/base/core.c b/drivers/base/core.c
> > index ad7b50897bcc..9c87a41cef82 100644
> > --- a/drivers/base/core.c
> > +++ b/drivers/base/core.c
> > @@ -2985,12 +2985,12 @@ void func(const struct device *dev, const char *fmt, ...) \
> > } \
> > EXPORT_SYMBOL(func);
> >
> > -define_dev_printk_level(dev_emerg, KERN_EMERG);
> > -define_dev_printk_level(dev_alert, KERN_ALERT);
> > -define_dev_printk_level(dev_crit, KERN_CRIT);
> > -define_dev_printk_level(dev_err, KERN_ERR);
> > -define_dev_printk_level(dev_warn, KERN_WARNING);
> > -define_dev_printk_level(dev_notice, KERN_NOTICE);
> > +define_dev_printk_level(_dev_emerg, KERN_EMERG);
> > +define_dev_printk_level(_dev_alert, KERN_ALERT);
> > +define_dev_printk_level(_dev_crit, KERN_CRIT);
> > +define_dev_printk_level(_dev_err, KERN_ERR);
> > +define_dev_printk_level(_dev_warn, KERN_WARNING);
> > +define_dev_printk_level(_dev_notice, KERN_NOTICE);
> > define_dev_printk_level(_dev_info, KERN_INFO);
> >
> > #endif
> > diff --git a/include/linux/device.h b/include/linux/device.h
> > index 563077d1cdc1..49c6b5d6a9f8 100644
> > --- a/include/linux/device.h
> > +++ b/include/linux/device.h
> > @@ -1306,30 +1306,34 @@ struct device_link *device_link_add(struct device *consumer,
> > struct device *supplier, u32 flags);
> > void device_link_del(struct device_link *link);
> >
> > +#ifndef dev_fmt
> > +#define dev_fmt(fmt) fmt
> > +#endif
> > +
> > #ifdef CONFIG_PRINTK
> >
> > -extern __printf(3, 0)
> > +__printf(3, 0)
> > int dev_vprintk_emit(int level, const struct device *dev,
> > const char *fmt, va_list args);
> > -extern __printf(3, 4)
> > +__printf(3, 4)
> > int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...);
> >
> > -extern __printf(3, 4)
> > +__printf(3, 4)
> > void dev_printk(const char *level, const struct device *dev,
> > const char *fmt, ...);
> > -extern __printf(2, 3)
> > -void dev_emerg(const struct device *dev, const char *fmt, ...);
> > -extern __printf(2, 3)
> > -void dev_alert(const struct device *dev, const char *fmt, ...);
> > -extern __printf(2, 3)
> > -void dev_crit(const struct device *dev, const char *fmt, ...);
> > -extern __printf(2, 3)
> > -void dev_err(const struct device *dev, const char *fmt, ...);
> > -extern __printf(2, 3)
> > -void dev_warn(const struct device *dev, const char *fmt, ...);
> > -extern __printf(2, 3)
> > -void dev_notice(const struct device *dev, const char *fmt, ...);
> > -extern __printf(2, 3)
> > +__printf(2, 3)
> > +void _dev_emerg(const struct device *dev, const char *fmt, ...);
> > +__printf(2, 3)
> > +void _dev_alert(const struct device *dev, const char *fmt, ...);
> > +__printf(2, 3)
> > +void _dev_crit(const struct device *dev, const char *fmt, ...);
> > +__printf(2, 3)
> > +void _dev_err(const struct device *dev, const char *fmt, ...);
> > +__printf(2, 3)
> > +void _dev_warn(const struct device *dev, const char *fmt, ...);
> > +__printf(2, 3)
> > +void _dev_notice(const struct device *dev, const char *fmt, ...);
> > +__printf(2, 3)
> > void _dev_info(const struct device *dev, const char *fmt, ...);
> >
> > #else
> > @@ -1347,26 +1351,26 @@ static inline void __dev_printk(const char *level, const struct device *dev,
> > {}
> > static inline __printf(3, 4)
> > void dev_printk(const char *level, const struct device *dev,
> > - const char *fmt, ...)
> > + const char *fmt, ...)
> > {}
> >
> > static inline __printf(2, 3)
> > -void dev_emerg(const struct device *dev, const char *fmt, ...)
> > +void _dev_emerg(const struct device *dev, const char *fmt, ...)
> > {}
> > static inline __printf(2, 3)
> > -void dev_crit(const struct device *dev, const char *fmt, ...)
> > +void _dev_crit(const struct device *dev, const char *fmt, ...)
> > {}
> > static inline __printf(2, 3)
> > -void dev_alert(const struct device *dev, const char *fmt, ...)
> > +void _dev_alert(const struct device *dev, const char *fmt, ...)
> > {}
> > static inline __printf(2, 3)
> > -void dev_err(const struct device *dev, const char *fmt, ...)
> > +void _dev_err(const struct device *dev, const char *fmt, ...)
> > {}
> > static inline __printf(2, 3)
> > -void dev_warn(const struct device *dev, const char *fmt, ...)
> > +void _dev_warn(const struct device *dev, const char *fmt, ...)
> > {}
> > static inline __printf(2, 3)
> > -void dev_notice(const struct device *dev, const char *fmt, ...)
> > +void _dev_notice(const struct device *dev, const char *fmt, ...)
> > {}
> > static inline __printf(2, 3)
> > void _dev_info(const struct device *dev, const char *fmt, ...)
> > @@ -1375,27 +1379,36 @@ void _dev_info(const struct device *dev, const char *fmt, ...)
> > #endif
> >
> > /*
> > - * Stupid hackaround for existing uses of non-printk uses dev_info
> > - *
> > - * Note that the definition of dev_info below is actually _dev_info
> > - * and a macro is used to avoid redefining dev_info
> > + * #defines for all the dev_<level> macros to prefix with whatever
> > + * possible use of #define dev_fmt(fmt) ...
> > */
> >
> > -#define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg)
> > +#define dev_emerg(dev, fmt, ...) \
> > + _dev_emerg(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > +#define dev_crit(dev, fmt, ...) \
> > + _dev_crit(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > +#define dev_alert(dev, fmt, ...) \
> > + _dev_alert(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > +#define dev_err(dev, fmt, ...) \
> > + _dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > +#define dev_warn(dev, fmt, ...) \
> > + _dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > +#define dev_notice(dev, fmt, ...) \
> > + _dev_notice(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > +#define dev_info(dev, fmt, ...) \
> > + _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
> >
> > #if defined(CONFIG_DYNAMIC_DEBUG)
> > -#define dev_dbg(dev, format, ...) \
> > -do { \
> > - dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
> > -} while (0)
> > +#define dev_dbg(dev, fmt, ...) \
> > + dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
> > #elif defined(DEBUG)
> > -#define dev_dbg(dev, format, arg...) \
> > - dev_printk(KERN_DEBUG, dev, format, ##arg)
> > +#define dev_dbg(dev, fmt, ...) \
> > + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__)
> > #else
> > -#define dev_dbg(dev, format, arg...) \
> > -({ \
> > - if (0) \
> > - dev_printk(KERN_DEBUG, dev, format, ##arg); \
> > +#define dev_dbg(dev, fmt, ...) \
> > +({ \
> > + if (0) \
> > + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
> > })
> > #endif
> >
> > @@ -1467,7 +1480,7 @@ do { \
> > DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
> > if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \
> > __ratelimit(&_rs)) \
> > - __dynamic_dev_dbg(&descriptor, dev, fmt, \
> > + __dynamic_dev_dbg(&descriptor, dev, dev_fmt(fmt), \
> > ##__VA_ARGS__); \
> > } while (0)
> > #elif defined(DEBUG)
> > @@ -1477,23 +1490,23 @@ do { \
> > DEFAULT_RATELIMIT_INTERVAL, \
> > DEFAULT_RATELIMIT_BURST); \
> > if (__ratelimit(&_rs)) \
> > - dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \
> > + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
> > } while (0)
> > #else
> > #define dev_dbg_ratelimited(dev, fmt, ...) \
> > do { \
> > if (0) \
> > - dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); \
> > + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
> > } while (0)
> > #endif
> >
> > #ifdef VERBOSE_DEBUG
> > #define dev_vdbg dev_dbg
> > #else
> > -#define dev_vdbg(dev, format, arg...) \
> > -({ \
> > - if (0) \
> > - dev_printk(KERN_DEBUG, dev, format, ##arg); \
> > +#define dev_vdbg(dev, fmt, ...) \
> > +({ \
> > + if (0) \
> > + dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
> > })
> > #endif
> >

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