drm/i915: Skip intel_crtc_state_dump() if debugs aren't enabled

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@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240215164055.30585-10-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

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 b5b9b99213cf523538ff88c249759ba1000037c9..cd78c200d4838e85be50bf6a43d1b21e2a262700 100644 (file)
--- 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",