[Intel-gfx] [PATCH 3/3] drm/i915: Use min() instead of hand rolling it

[Ville Syrjala]

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

Most places in the vblank code use min() to clamp scanline
counters below vtotal. But we missed one in the gen3/4
pixel counter based codepath.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_vblank.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_vblank.c b/drivers/gpu/drm/i915/display/intel_vblank.c
index f8bf9810527d..136393d99298 100644
--- a/drivers/gpu/drm/i915/display/intel_vblank.c
+++ b/drivers/gpu/drm/i915/display/intel_vblank.c
@@ -340,8 +340,7 @@ static bool i915_get_crtc_scanoutpos(struct drm_crtc *_crtc,
 		 * matches how the scanline counter based position works since
 		 * the scanline counter doesn't count the two half lines.
 		 */
-		if (position >= vtotal)
-			position = vtotal - 1;
+		position = min(position, vtotal - 1);
 
 		/*
 		 * Start of vblank interrupt is triggered at start of hsync,
-- 
2.39.2