drm: Reduce object size of DRM_DEV_<LEVEL> uses

These macros are similar to the DRM_<LEVEL> with the addition
of a struct device * to the arguments.

Convert the single drm_dev_printk function into 2 separate functions.
drm_dev_printk with a KERN_<LEVEL> * for generic use and drm_dev_dbg
for conditional masked use.

Remove the __func__ argument and use __builtin_return_address(0) to be
similar to the DRM_<LEVEL> macros uses.

Convert the DRM_DEV_<LEVEL> macros to remove now unnecessary arguments
and use a consistent style.

These macros are rarely used in the generic gpu/drm code so the code
size does not change much for a defconfig, but when more drivers are
enabled, there is ~4k savings.

Many of these macros have no existing use at all.

$ size -t drivers/gpu/drm/built-in.a | tail -1
1877530	  44651	    995	1923176	 1d5868	(TOTALS)

$ size -t drivers/gpu/drm/built-in.a | tail -1
1877527	  44651	    995	1923173	 1d5865	(TOTALS)

$ size -t drivers/gpu/drm/built-in.a | tail -1
17166750	2689238	 108352	19964340	130a1b4	(TOTALS)

$ size -t drivers/gpu/drm/built-in.a | tail -1
17168888	2691734	 108352	19968974	130b3ce	(TOTALS)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/e5c164946e15375ac71b69b75f296efdf0b76e6d.1521233717.git.joe@perches.com

diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
index 79abf6d..b25f98f 100644 (file)
--- a/drivers/gpu/drm/drm_print.c
+++ b/drivers/gpu/drm/drm_print.c
@@ -63,16 +63,34 @@ void drm_printf(struct drm_printer *p, const char *f, ...)
 }
 EXPORT_SYMBOL(drm_printf);
 
-#define DRM_PRINTK_FMT "[" DRM_NAME ":%s]%s %pV"
-
 void drm_dev_printk(const struct device *dev, const char *level,
-                   unsigned int category, const char *function_name,
-                   const char *prefix, const char *format, ...)
+                   const char *format, ...)
+{
+       struct va_format vaf;
+       va_list args;
+
+       va_start(args, format);
+       vaf.fmt = format;
+       vaf.va = &args;
+
+       if (dev)
+               dev_printk(level, dev, "[" DRM_NAME ":%ps] %pV",
+                          __builtin_return_address(0), &vaf);
+       else
+               printk("%s" "[" DRM_NAME ":%ps] %pV",
+                      level, __builtin_return_address(0), &vaf);
+
+       va_end(args);
+}
+EXPORT_SYMBOL(drm_dev_printk);
+
+void drm_dev_dbg(const struct device *dev, unsigned int category,
+                const char *format, ...)
 {
        struct va_format vaf;
        va_list args;
 
-       if (category != DRM_UT_NONE && !(drm_debug & category))
+       if (!(drm_debug & category))
                return;
 
        va_start(args, format);
@@ -80,14 +98,15 @@ void drm_dev_printk(const struct device *dev, const char *level,
        vaf.va = &args;
 
        if (dev)
-               dev_printk(level, dev, DRM_PRINTK_FMT, function_name, prefix,
-                          &vaf);
+               dev_printk(KERN_DEBUG, dev, "[" DRM_NAME ":%ps] %pV",
+                          __builtin_return_address(0), &vaf);
        else
-               printk("%s" DRM_PRINTK_FMT, level, function_name, prefix, &vaf);
+               printk(KERN_DEBUG "[" DRM_NAME ":%ps] %pV",
+                      __builtin_return_address(0), &vaf);
 
        va_end(args);
 }
-EXPORT_SYMBOL(drm_dev_printk);
+EXPORT_SYMBOL(drm_dev_dbg);
 
 void drm_dbg(unsigned int category, const char *format, ...)
 {

diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
index 3a40c5a..e1a46e9 100644 (file)
--- a/include/drm/drm_print.h
+++ b/include/drm/drm_print.h
@@ -196,10 +196,13 @@ static inline struct drm_printer drm_debug_printer(const char *prefix)
 #define DRM_UT_STATE           0x40
 #define DRM_UT_LEASE           0x80
 
-__printf(6, 7)
+__printf(3, 4)
 void drm_dev_printk(const struct device *dev, const char *level,
-                   unsigned int category, const char *function_name,
-                   const char *prefix, const char *format, ...);
+                   const char *format, ...);
+__printf(3, 4)
+void drm_dev_dbg(const struct device *dev, unsigned int category,
+                const char *format, ...);
+
 __printf(2, 3)
 void drm_dbg(unsigned int category, const char *format, ...);
 __printf(1, 2)
@@ -208,10 +211,7 @@ void drm_err(const char *format, ...);
 /* Macros to make printk easier */
 
 #define _DRM_PRINTK(once, level, fmt, ...)                             \
-       do {                                                            \
-               printk##once(KERN_##level "[" DRM_NAME "] " fmt,        \
-                            ##__VA_ARGS__);                            \
-       } while (0)
+       printk##once(KERN_##level "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
 
 #define DRM_INFO(fmt, ...)                                             \
        _DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
@@ -234,8 +234,7 @@ void drm_err(const char *format, ...);
  * @fmt: printf() like format string.
  */
 #define DRM_DEV_ERROR(dev, fmt, ...)                                   \
-       drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\
-                      fmt, ##__VA_ARGS__)
+       drm_dev_printk(dev, KERN_ERR, "*ERROR* " fmt, ##__VA_ARGS__)
 #define DRM_ERROR(fmt, ...)                                            \
        drm_err(fmt, ##__VA_ARGS__)
 
@@ -258,8 +257,7 @@ void drm_err(const char *format, ...);
        DRM_DEV_ERROR_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
 
 #define DRM_DEV_INFO(dev, fmt, ...)                                    \
-       drm_dev_printk(dev, KERN_INFO, DRM_UT_NONE, __func__, "", fmt,  \
-                      ##__VA_ARGS__)
+       drm_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__)
 
 #define DRM_DEV_INFO_ONCE(dev, fmt, ...)                               \
 ({                                                                     \
@@ -276,53 +274,46 @@ void drm_err(const char *format, ...);
  * @dev: device pointer
  * @fmt: printf() like format string.
  */
-#define DRM_DEV_DEBUG(dev, fmt, args...)                               \
-       drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt, \
-                      ##args)
+#define DRM_DEV_DEBUG(dev, fmt, ...)                                   \
+       drm_dev_dbg(dev, DRM_UT_CORE, fmt, ##__VA_ARGS__)
 #define DRM_DEBUG(fmt, ...)                                            \
        drm_dbg(DRM_UT_CORE, fmt, ##__VA_ARGS__)
 
-#define DRM_DEV_DEBUG_DRIVER(dev, fmt, args...)                                \
-       drm_dev_printk(dev, KERN_DEBUG, DRM_UT_DRIVER, __func__, "",    \
-                      fmt, ##args)
+#define DRM_DEV_DEBUG_DRIVER(dev, fmt, ...)                            \
+       drm_dev_dbg(dev, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
 #define DRM_DEBUG_DRIVER(fmt, ...)                                     \
        drm_dbg(DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
 
-#define DRM_DEV_DEBUG_KMS(dev, fmt, args...)                           \
-       drm_dev_printk(dev, KERN_DEBUG, DRM_UT_KMS, __func__, "", fmt,  \
-                      ##args)
+#define DRM_DEV_DEBUG_KMS(dev, fmt, ...)                               \
+       drm_dev_dbg(dev, DRM_UT_KMS, fmt, ##__VA_ARGS__)
 #define DRM_DEBUG_KMS(fmt, ...)                                                \
        drm_dbg(DRM_UT_KMS, fmt, ##__VA_ARGS__)
 
-#define DRM_DEV_DEBUG_PRIME(dev, fmt, args...)                         \
-       drm_dev_printk(dev, KERN_DEBUG, DRM_UT_PRIME, __func__, "",     \
-                      fmt, ##args)
+#define DRM_DEV_DEBUG_PRIME(dev, fmt, ...)                             \
+       drm_dev_dbg(dev, DRM_UT_PRIME, fmt, ##__VA_ARGS__)
 #define DRM_DEBUG_PRIME(fmt, ...)                                      \
        drm_dbg(DRM_UT_PRIME, fmt, ##__VA_ARGS__)
 
-#define DRM_DEV_DEBUG_ATOMIC(dev, fmt, args...)                                \
-       drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ATOMIC, __func__, "",    \
-                      fmt, ##args)
+#define DRM_DEV_DEBUG_ATOMIC(dev, fmt, ...)                            \
+       drm_dev_dbg(dev, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
 #define DRM_DEBUG_ATOMIC(fmt, ...)                                     \
        drm_dbg(DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
 
-#define DRM_DEV_DEBUG_VBL(dev, fmt, args...)                           \
-       drm_dev_printk(dev, KERN_DEBUG, DRM_UT_VBL, __func__, "", fmt,  \
-                      ##args)
+#define DRM_DEV_DEBUG_VBL(dev, fmt, ...)                               \
+       drm_dev_dbg(dev, DRM_UT_VBL, fmt, ##__VA_ARGS__)
 #define DRM_DEBUG_VBL(fmt, ...)                                                \
        drm_dbg(DRM_UT_VBL, fmt, ##__VA_ARGS__)
 
 #define DRM_DEBUG_LEASE(fmt, ...)                                      \
        drm_dbg(DRM_UT_LEASE, fmt, ##__VA_ARGS__)
 
-#define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...)    \
+#define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, category, fmt, ...)     \
 ({                                                                     \
        static DEFINE_RATELIMIT_STATE(_rs,                              \
                                      DEFAULT_RATELIMIT_INTERVAL,       \
                                      DEFAULT_RATELIMIT_BURST);         \
        if (__ratelimit(&_rs))                                          \
-               drm_dev_printk(dev, KERN_DEBUG, DRM_UT_ ## level,       \
-                              __func__, "", fmt, ##args);              \
+               drm_dev_dbg(dev, category, fmt, ##__VA_ARGS__);         \
 })
 
 /**
@@ -331,21 +322,28 @@ void drm_err(const char *format, ...);
  * @dev: device pointer
  * @fmt: printf() like format string.
  */
-#define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, args...)                   \
-       DEV__DRM_DEFINE_DEBUG_RATELIMITED(dev, CORE, fmt, ##args)
-#define DRM_DEBUG_RATELIMITED(fmt, args...)                            \
-       DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##args)
-#define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, args...)            \
-       _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRIVER, fmt, ##args)
-#define DRM_DEBUG_DRIVER_RATELIMITED(fmt, args...)                     \
-       DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##args)
-#define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, args...)               \
-       _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, KMS, fmt, ##args)
-#define DRM_DEBUG_KMS_RATELIMITED(fmt, args...)                                \
-       DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##args)
-#define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, args...)             \
-       _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, PRIME, fmt, ##args)
-#define DRM_DEBUG_PRIME_RATELIMITED(fmt, args...)                      \
-       DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##args)
+#define DRM_DEV_DEBUG_RATELIMITED(dev, fmt, ...)                       \
+       _DEV_DRM_DEFINE_DEBUG_RATELIMITED(dev, DRM_UT_CORE,             \
+                                         fmt, ##__VA_ARGS__)
+#define DRM_DEBUG_RATELIMITED(fmt, ...)                                        \
+       DRM_DEV_DEBUG_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
+
+#define DRM_DEV_DEBUG_DRIVER_RATELIMITED(dev, fmt, ...)                        \
+       _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRM_UT_DRIVER,           \
+                                         fmt, ##__VA_ARGS__)
+#define DRM_DEBUG_DRIVER_RATELIMITED(fmt, ...)                         \
+       DRM_DEV_DEBUG_DRIVER_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
+
+#define DRM_DEV_DEBUG_KMS_RATELIMITED(dev, fmt, ...)                   \
+       _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRM_UT_KMS,              \
+                                         fmt, ##__VA_ARGS__)
+#define DRM_DEBUG_KMS_RATELIMITED(fmt, ...)                            \
+       DRM_DEV_DEBUG_KMS_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
+
+#define DRM_DEV_DEBUG_PRIME_RATELIMITED(dev, fmt, ...)                 \
+       _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, DRM_UT_PRIME,            \
+                                         fmt, ##__VA_ARGS__)
+#define DRM_DEBUG_PRIME_RATELIMITED(fmt, ...)                          \
+       DRM_DEV_DEBUG_PRIME_RATELIMITED(NULL, fmt, ##__VA_ARGS__)
 
 #endif /* DRM_PRINT_H_ */