ath: Make ath_printk void not int and remove unused struct ath_common *
authorJoe Perches <joe@perches.com>
Fri, 26 Aug 2011 08:56:39 +0000 (01:56 -0700)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 30 Aug 2011 19:38:52 +0000 (15:38 -0400)
Changing the return type and removing the unused argument from
ath_printk reduces code size.

Add an __always_unused struct ath_common * to the macros
that call ath_printk to avoid unused variable warnings.

$ size drivers/net/wireless/ath/built-in.o*
   text    data     bss     dec     hex filename
1159859   16235  212000 1388094  152e3e drivers/net/wireless/ath/built-in.o.new
1164175   16235  212032 1392442  153f3a drivers/net/wireless/ath/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/ath/ath.h
drivers/net/wireless/ath/main.c

index a3f8505c712bc36a0a84dbca45e7ad800f0cd809..9891fb605a019bc8ff99b366d1f2aa933b9ebb44 100644 (file)
@@ -178,24 +178,29 @@ bool ath_hw_keyreset(struct ath_common *common, u16 entry);
 void ath_hw_cycle_counters_update(struct ath_common *common);
 int32_t ath_hw_get_listen_time(struct ath_common *common);
 
-extern __attribute__((format (printf, 3, 4)))
-int ath_printk(const char *level, struct ath_common *common,
-              const char *fmt, ...);
+extern __attribute__((format (printf, 2, 3)))
+void ath_printk(const char *level, const char *fmt, ...);
+
+#define _ath_printk(level, common, fmt, ...)                   \
+do {                                                           \
+       __always_unused struct ath_common *unused = common;     \
+       ath_printk(level, fmt, ##__VA_ARGS__);                  \
+} while (0)
 
 #define ath_emerg(common, fmt, ...)                            \
-       ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
 #define ath_alert(common, fmt, ...)                            \
-       ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
 #define ath_crit(common, fmt, ...)                             \
-       ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
 #define ath_err(common, fmt, ...)                              \
-       ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
 #define ath_warn(common, fmt, ...)                             \
-       ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
 #define ath_notice(common, fmt, ...)                           \
-       ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
 #define ath_info(common, fmt, ...)                             \
-       ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
+       _ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
 
 /**
  * enum ath_debug_level - atheros wireless debug level
@@ -250,7 +255,7 @@ enum ATH_DEBUG {
 #define ath_dbg(common, dbg_mask, fmt, ...)                            \
 do {                                                                   \
        if ((common)->debug_mask & dbg_mask)                            \
-               ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__);     \
+               _ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__);    \
 } while (0)
 
 #define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
index c325202fdc5fb794795d175454d4cb69425c2713..d9218fe02036329aab1de1649ec57d3ddfd74b8a 100644 (file)
@@ -57,22 +57,18 @@ struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
 }
 EXPORT_SYMBOL(ath_rxbuf_alloc);
 
-int ath_printk(const char *level, struct ath_common *common,
-              const char *fmt, ...)
+void ath_printk(const char *level, const char *fmt, ...)
 {
        struct va_format vaf;
        va_list args;
-       int rtn;
 
        va_start(args, fmt);
 
        vaf.fmt = fmt;
        vaf.va = &args;
 
-       rtn = printk("%sath: %pV", level, &vaf);
+       printk("%sath: %pV", level, &vaf);
 
        va_end(args);
-
-       return rtn;
 }
 EXPORT_SYMBOL(ath_printk);