Not the first time! not the last time? There is a possibility to use gcc 5's -Wbool-compare to try and compare (reg) in those macros to a constant and gcc will warn that the comparison between a boolean expression and a constant is always either true or false. Maybe. Cc: Imre Deak <imre.deak@xxxxxxxxx> Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_ddi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 4823184..5b600bf 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -2882,7 +2882,7 @@ static bool bxt_ddi_pll_get_hw_state(struct drm_i915_private *dev_priv, * here just read out lanes 0/1 and output a note if lanes 2/3 differ. */ hw_state->pcsdw12 = I915_READ(BXT_PORT_PCS_DW12_LN01(port)); - if (I915_READ(BXT_PORT_PCS_DW12_LN23(port) != hw_state->pcsdw12)) + if (I915_READ(BXT_PORT_PCS_DW12_LN23(port)) != hw_state->pcsdw12) DRM_DEBUG_DRIVER("lane stagger config different for lane 01 (%08x) and 23 (%08x)\n", hw_state->pcsdw12, I915_READ(BXT_PORT_PCS_DW12_LN23(port))); -- 2.1.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx