[PATCH 1/2] drm: add DRM_INFO_ONCE() to print a one-time DRM_INFO() message

[Jani Nikula]

Just like DRM_INFO(), but only do it once.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 include/drm/drmP.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 04086c5be930..04a7f31301f8 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -199,6 +199,9 @@ int drm_err(const char *func, const char *format, ...);
 #define DRM_INFO(fmt, ...)				\
 	printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
 
+#define DRM_INFO_ONCE(fmt, ...)				\
+	printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__)
+
 /**
  * Debug output.
  *
-- 
1.7.9.5