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drm/printer: add debug printer

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Useful for dumping lots of data into dmesg, e.g. drm_mm.

v2: Fixup export_symbol line, I misplaced a hunk (Chris).

Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1482943330-11592-1-git-send-email-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter
2016-12-28 17:42:09 +01:00
parent ae774e2c68
commit 3d387d923c
2 changed files with 24 additions and 2 deletions
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6
drivers/gpu/drm/drm_print.c
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@@ -40,6 +40,12 @@ void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf)
}
EXPORT_SYMBOL(__drm_printfn_info);
void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf)
{
pr_debug("%s %pV", p->prefix, vaf);
}
EXPORT_SYMBOL(__drm_printfn_debug);
/**
* drm_printf - print to a &drm_printer stream
* @p: the &drm_printer