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drm: add DRM_INFO_ONCE() to print a one-time DRM_INFO() message

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

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jani Nikula 2014-01-31 15:49:07 +02:00 committed by Daniel Vetter
parent 89258a9753
commit 48b8f6315a
1 changed files with 3 additions and 0 deletions
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3
include/drm/drmP.h
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@ -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.
*