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9p: Reduce object size with CONFIG_NET_9P_DEBUG

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Reduce object size by deduplicating formats.

Use vsprintf extension %pV.
Rename P9_DPRINTK uses to p9_debug, align arguments.
Add function for _p9_debug and macro to add __func__.
Add missing "\n"s to p9_debug uses.
Remove embedded function names as p9_debug adds it.
Remove P9_EPRINTK macro and convert use to pr_<level>.
Add and use pr_fmt and pr_<level>.

$ size fs/9p/built-in.o*
   text	   data	    bss	    dec	    hex	filename
  62133	    984	  16000	  79117	  1350d	fs/9p/built-in.o.new
  67342	    984	  16928	  85254	  14d06	fs/9p/built-in.o.old
$ size net/9p/built-in.o*
   text	   data	    bss	    dec	    hex	filename
  88792	   4148	  22024	 114964	  1c114	net/9p/built-in.o.new
  94072	   4148	  23232	 121452	  1da6c	net/9p/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Joe Perches
2011-11-28 10:40:46 -08:00
committed by Eric Van Hensbergen
parent a0ea787b02
commit 5d3851530d
20 changed files with 452 additions and 439 deletions
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28
include/net/9p/9p.h
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@@ -63,30 +63,16 @@ enum p9_debug_flags {
#ifdef CONFIG_NET_9P_DEBUG
extern unsigned int p9_debug_level;
#define P9_DPRINTK(level, format, arg...) \
do { \
if ((p9_debug_level & level) == level) {\
if (level == P9_DEBUG_9P) \
printk(KERN_NOTICE "(%8.8d) " \
format , task_pid_nr(current) , ## arg); \
else \
printk(KERN_NOTICE "-- %s (%d): " \
format , __func__, task_pid_nr(current) , ## arg); \
} \
} while (0)
__printf(3, 4)
void _p9_debug(enum p9_debug_flags level, const char *func,
const char *fmt, ...);
#define p9_debug(level, fmt, ...) \
_p9_debug(level, __func__, fmt, ##__VA_ARGS__)
#else
#define P9_DPRINTK(level, format, arg...) do { } while (0)
#define p9_debug(level, fmt, ...) \
no_printk(fmt, ##__VA_ARGS__)
#endif
#define P9_EPRINTK(level, format, arg...) \
do { \
printk(level "9p: %s (%d): " \
format , __func__, task_pid_nr(current), ## arg); \
} while (0)
/**
* enum p9_msg_t - 9P message types
* @P9_TLERROR: not used