drm: Reduce object size of DRM_ERROR and DRM_DEBUG uses

drm_printk is used for both DRM_ERROR and DRM_DEBUG with unnecessary
arguments that can be removed by creating separate functins.

Create specific functions for these calls to reduce x86/64 defconfig
size by ~20k.

Modify the existing macros to use the specific calls.

new:
$ size -t drivers/gpu/drm/built-in.a | tail -1
1876562	  44542	    995	1922099	 1d5433	(TOTALS)

old:
$ size -t drivers/gpu/drm/built-in.a | tail -1
1897565	  44542	    995	1943102	 1da63e	(TOTALS)

Miscellanea:

o intel_display requires a change to use the specific calls.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/016b5cb84cede20fd0f91ed6965421d99fd5f2ce.1520978414.git.joe@perches.com

1 files changed, 21 insertions, 7 deletions

diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
index 781518fd88e3..79abf6d5b4db 100644
--- a/drivers/gpu/drm/drm_print.c
+++ b/drivers/gpu/drm/drm_print.c
@@ -89,23 +89,37 @@ 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 *format, ...)
+void drm_dbg(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);
 	vaf.fmt = format;
 	vaf.va = &args;
 
-	printk("%s" "[" DRM_NAME ":%ps]%s %pV",
-	       level, __builtin_return_address(0),
-	       strcmp(level, KERN_ERR) == 0 ? " *ERROR*" : "", &vaf);
+	printk(KERN_DEBUG "[" DRM_NAME ":%ps] %pV",
+	       __builtin_return_address(0), &vaf);
+
+	va_end(args);
+}
+EXPORT_SYMBOL(drm_dbg);
+
+void drm_err(const char *format, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, format);
+	vaf.fmt = format;
+	vaf.va = &args;
+
+	printk(KERN_ERR "[" DRM_NAME ":%ps] *ERROR* %pV",
+	       __builtin_return_address(0), &vaf);
 
 	va_end(args);
 }
-EXPORT_SYMBOL(drm_printk);
+EXPORT_SYMBOL(drm_err);