linux-kernel - [PATCH] drm/atmel-hlcdc: remove unnecessary if statement

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Message-Id: <20170807062650.9863-1-stefan@agner.ch>
Date:   Sun,  6 Aug 2017 23:26:50 -0700
From:   Stefan Agner <stefan@...er.ch>
To:     boris.brezillon@...e-electrons.com, airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Stefan Agner <stefan@...er.ch>
Subject: [PATCH] drm/atmel-hlcdc: remove unnecessary if statement

The statement always evaluates to true since the struct fields
are arrays. This has shown up as a warning when compiling with
clang:
  warning: address of array 'desc->layout.xstride' will always
      evaluate to 'true' [-Wpointer-bool-conversion]

Signed-off-by: Stefan Agner <stefan@...er.ch>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index 1124200bb280..9bd8c4888035 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -854,24 +854,21 @@ static int atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane,
 				struct atmel_hlcdc_plane_properties *props)
 {
 	const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc;
+	int ret;
 
 	if (desc->type == ATMEL_HLCDC_OVERLAY_LAYER ||
 	    desc->type == ATMEL_HLCDC_CURSOR_LAYER)
 		drm_object_attach_property(&plane->base.base,
 					   props->alpha, 255);
 
-	if (desc->layout.xstride && desc->layout.pstride) {
-		int ret;
-
-		ret = drm_plane_create_rotation_property(&plane->base,
-							 DRM_MODE_ROTATE_0,
-							 DRM_MODE_ROTATE_0 |
-							 DRM_MODE_ROTATE_90 |
-							 DRM_MODE_ROTATE_180 |
-							 DRM_MODE_ROTATE_270);
-		if (ret)
-			return ret;
-	}
+	ret = drm_plane_create_rotation_property(&plane->base,
+						 DRM_MODE_ROTATE_0,
+						 DRM_MODE_ROTATE_0 |
+						 DRM_MODE_ROTATE_90 |
+						 DRM_MODE_ROTATE_180 |
+						 DRM_MODE_ROTATE_270);
+	if (ret)
+		return ret;
 
 	if (desc->layout.csc) {
 		/*
-- 
2.13.3