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drm: Simplify drm_printk to reduce object size quite a bit

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Remove function name and special " *ERROR*" from argument list

$ size drivers/gpu/drm/built-in.o* (x86-32 defconfig, most drm selected)
   text	   data	    bss	    dec	    hex	filename
5635366	 182579	  14328	5832273	 58fe51	drivers/gpu/drm/built-in.o.new
5779552	 182579	  14328	5976459	 5b318b	drivers/gpu/drm/built-in.o.old

Using "%ps", __builtin_return_address(0) is the same as "%s", __func__
except for static inlines, but it's more or less the same output.

Miscellanea:

o Convert args... to ##__VA_ARGS__
o The equivalent DRM_DEV_<FOO> macros are rarely used and not
  worth conversion

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/01f976d5ab93c985756fc1b2e83656fb0a2a28c8.1474856262.git.joe@perches.com
This commit is contained in:
Joe Perches
2016-09-25 19:18:34 -07:00
committed by Daniel Vetter
parent 8cadab0a2a
commit 6bd488db80
2 changed files with 17 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/drm_drv.c
View File

@@ -89,7 +89,6 @@ void drm_dev_printk(const struct device *dev, const char *level,
EXPORT_SYMBOL(drm_dev_printk);
void drm_printk(const char *level, unsigned int category,
const char *function_name, const char *prefix,
const char *format, ...)
{
struct va_format vaf;
@@ -102,7 +101,9 @@ void drm_printk(const char *level, unsigned int category,
vaf.fmt = format;
vaf.va = &args;
printk("%s" DRM_PRINTK_FMT, level, function_name, prefix, &vaf);
printk("%s" "[" DRM_NAME ":%ps]%s %pV",
level, __builtin_return_address(0),
strcmp(level, KERN_ERR) == 0 ? " *ERROR*" : "", &vaf);
va_end(args);
}