[RFC 2/5] drm: Respect driver set DRM_NAME in drm_printk

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Instead of logging with the DRM core name, pass in the name explicitly
in order to allow individual drivers to have all their log messages
prefixed with their own name.

For instance i915, instead of:

 [drm:edp_panel_off [i915]] Wait for panel power off time

would now log debug messages as:

 [i915:edp_panel_off [i915]] Wait for panel power off time

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/drm_drv.c |  6 +++---
 include/drm/drmP.h        | 14 +++++++-------
 include/drm/drm_drv.h     |  4 ++--
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index f74b7d06ec01..f6b674b03db9 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -92,7 +92,7 @@ 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, ...)
+		const char *driver, const char *format, ...)
 {
 	struct va_format vaf;
 	va_list args;
@@ -104,8 +104,8 @@ void drm_printk(const char *level, unsigned int category,
 	vaf.fmt = format;
 	vaf.va = &args;
 
-	printk("%s" "[" DRM_NAME ":%ps]%s %pV",
-	       level, __builtin_return_address(0),
+	printk("%s[%s:%ps]%s %pV",
+	       level, driver, __builtin_return_address(0),
 	       strcmp(level, KERN_ERR) == 0 ? " *ERROR*" : "", &vaf);
 
 	va_end(args);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index a9cfd33c7b1a..eedfbe51795a 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -176,7 +176,7 @@ struct dma_buf_attachment;
 	drm_dev_printk(dev, KERN_ERR, DRM_UT_NONE, __func__, " *ERROR*",\
 		       fmt, ##__VA_ARGS__)
 #define DRM_ERROR(fmt, ...)						\
-	drm_printk(KERN_ERR, DRM_UT_NONE, fmt,	##__VA_ARGS__)
+	drm_printk(KERN_ERR, DRM_UT_NONE, DRM_NAME, fmt, ##__VA_ARGS__)
 
 /**
  * Rate limited error output.  Like DRM_ERROR() but won't flood the log.
@@ -219,37 +219,37 @@ struct dma_buf_attachment;
 	drm_dev_printk(dev, KERN_DEBUG, DRM_UT_CORE, __func__, "", fmt,	\
 		       ##args)
 #define DRM_DEBUG(fmt, ...)						\
-	drm_printk(KERN_DEBUG, DRM_UT_CORE, fmt, ##__VA_ARGS__)
+	drm_printk(KERN_DEBUG, DRM_UT_CORE, DRM_NAME, 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_DEBUG_DRIVER(fmt, ...)					\
-	drm_printk(KERN_DEBUG, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
+	drm_printk(KERN_DEBUG, DRM_UT_DRIVER, DRM_NAME, 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_DEBUG_KMS(fmt, ...)					\
-	drm_printk(KERN_DEBUG, DRM_UT_KMS, fmt, ##__VA_ARGS__)
+	drm_printk(KERN_DEBUG, DRM_UT_KMS, DRM_NAME, 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_DEBUG_PRIME(fmt, ...)					\
-	drm_printk(KERN_DEBUG, DRM_UT_PRIME, fmt, ##__VA_ARGS__)
+	drm_printk(KERN_DEBUG, DRM_UT_PRIME, DRM_NAME, 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_DEBUG_ATOMIC(fmt, ...)					\
-	drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__)
+	drm_printk(KERN_DEBUG, DRM_UT_ATOMIC, DRM_NAME, 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_DEBUG_VBL(fmt, ...)					\
-	drm_printk(KERN_DEBUG, DRM_UT_VBL, fmt, ##__VA_ARGS__)
+	drm_printk(KERN_DEBUG, DRM_UT_VBL, DRM_NAME, fmt, ##__VA_ARGS__)
 
 #define _DRM_DEV_DEFINE_DEBUG_RATELIMITED(dev, level, fmt, args...)	\
 ({									\
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index c4fc49583dc0..0ad6cde5757b 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -411,9 +411,9 @@ extern __printf(6, 7)
 void drm_dev_printk(const struct device *dev, const char *level,
 		    unsigned int category, const char *function_name,
 		    const char *prefix, const char *format, ...);
-extern __printf(3, 4)
+extern __printf(4, 5)
 void drm_printk(const char *level, unsigned int category,
-		const char *format, ...);
+		const char *driver, const char *format, ...);
 extern unsigned int drm_debug;
 
 int drm_dev_init(struct drm_device *dev,
-- 
2.7.4