Re: [Intel-gfx] [PATCH v4 1/4] drm: extra printk() wrapper macros

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Hi Dave, Daniel,

We had this i915 series with a single DRM core patch (reviewed) ready for a while - just waiting for an ack to merge it via i915 trees.

Can we proceed with merging it?

Regards,

Tvrtko

On 18/08/16 18:17, Dave Gordon wrote:
We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk()
provides several other useful intermediate levels such as NOTICE and
WARNING. So this patch fills out the set by providing both regular and
once-only macros for each of the levels INFO, NOTICE, and WARNING, using
a common underlying macro that does all the token-pasting.

DRM_ERROR is unchanged, as it's not just a printk wrapper.

v2:
     Fix whitespace, missing ## (Eric Engestrom)

Signed-off-by: Dave Gordon <david.s.gordon@xxxxxxxxx>
Reviewed-by: Eric Engestrom <eric.engestrom@xxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
  include/drm/drmP.h | 26 ++++++++++++++++++++------
  1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index f8e87fd..734e4fb 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -163,6 +163,26 @@ void drm_err(const char *format, ...);
  /** \name Macros to make printk easier */
  /*@{*/

+#define _DRM_PRINTK(once, level, fmt, ...)				\
+	do {								\
+		printk##once(KERN_##level "[" DRM_NAME "] " fmt,	\
+			     ##__VA_ARGS__);				\
+	} while (0)
+
+#define DRM_INFO(fmt, ...)						\
+	_DRM_PRINTK(, INFO, fmt, ##__VA_ARGS__)
+#define DRM_NOTE(fmt, ...)						\
+	_DRM_PRINTK(, NOTICE, fmt, ##__VA_ARGS__)
+#define DRM_WARN(fmt, ...)						\
+	_DRM_PRINTK(, WARNING, fmt, ##__VA_ARGS__)
+
+#define DRM_INFO_ONCE(fmt, ...)						\
+	_DRM_PRINTK(_once, INFO, fmt, ##__VA_ARGS__)
+#define DRM_NOTE_ONCE(fmt, ...)						\
+	_DRM_PRINTK(_once, NOTICE, fmt, ##__VA_ARGS__)
+#define DRM_WARN_ONCE(fmt, ...)						\
+	_DRM_PRINTK(_once, WARNING, fmt, ##__VA_ARGS__)
+
  /**
   * Error output.
   *
@@ -188,12 +208,6 @@ void drm_err(const char *format, ...);
  		drm_err(fmt, ##__VA_ARGS__);				\
  })

-#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.
   *

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