[PATCH 09/12] drm/i915: Skip intel_crtc_state_dump() if debugs aren't enabled

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

intel_crtc_state_dump() does a whole boatload of string formatting
which is all wasted energy if the debugs aren't even enabled. Skip
the whole thing in that case.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_crtc_state_dump.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
index b5b9b99213cf..cd78c200d483 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
@@ -192,6 +192,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 	char buf[64];
 	int i;
 
+	if (!drm_debug_enabled(DRM_UT_KMS))
+		return;
+
 	p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, NULL);
 
 	drm_printf(&p, "[CRTC:%d:%s] enable: %s [%s]\n",
-- 
2.43.0