linux-kernel - [PATCH linux-next] drm/i915/display: Remove unused variable in the for loop.

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Date:   Mon, 18 Oct 2021 08:44:49 +0000
From:   luo penghao <cgel.zte@...il.com>
To:     Jani Nikula <jani.nikula@...ux.intel.com>
Cc:     Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, luo penghao <luo.penghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] drm/i915/display: Remove unused variable in the for loop.

Variable is not used in the loop, and its assignment is redundant too.
So it should be deleted.

The clang_analyzer complains as follows:

drivers/gpu/drm/i915/display/intel_fb.c:1018:3 warning:

Value stored to 'cpp' is never read.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: luo penghao <luo.penghao@....com.cn>
---
 drivers/gpu/drm/i915/display/intel_fb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index fa1f375..b9b6a7a 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -998,7 +998,7 @@ int intel_fill_fb_info(struct drm_i915_private *i915, struct intel_framebuffer *
 	for (i = 0; i < num_planes; i++) {
 		struct fb_plane_view_dims view_dims;
 		unsigned int width, height;
-		unsigned int cpp, size;
+		unsigned int size;
 		u32 offset;
 		int x, y;
 		int ret;
@@ -1015,7 +1015,7 @@ int intel_fill_fb_info(struct drm_i915_private *i915, struct intel_framebuffer *
 				return -EINVAL;
 		}
 
-		cpp = fb->base.format->cpp[i];
+		fb->base.format->cpp[i];
 		intel_fb_plane_dims(fb, i, &width, &height);
 
 		ret = convert_plane_offset_to_xy(fb, i, width, &x, &y);
-- 
2.15.2