drm/i915/dsi: remove set but not used variable 'hfront_porch'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/i915/display/icl_dsi.c: In function 'gen11_dsi_set_transcoder_timings':
drivers/gpu/drm/i915/display/icl_dsi.c:768:6: warning:
 variable 'hfront_porch' set but not used [-Wunused-but-set-variable]

It is never used and can be removed.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190719015136.103988-1-yuehaibing@huawei.com

diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index 4d952ac..a42348b 100644 (file)
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -763,7 +763,7 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder,
        enum transcoder dsi_trans;
        /* horizontal timings */
        u16 htotal, hactive, hsync_start, hsync_end, hsync_size;
-       u16 hfront_porch, hback_porch;
+       u16 hback_porch;
        /* vertical timings */
        u16 vtotal, vactive, vsync_start, vsync_end, vsync_shift;
 
@@ -772,8 +772,6 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder,
        hsync_start = adjusted_mode->crtc_hsync_start;
        hsync_end = adjusted_mode->crtc_hsync_end;
        hsync_size  = hsync_end - hsync_start;
-       hfront_porch = (adjusted_mode->crtc_hsync_start -
-                       adjusted_mode->crtc_hdisplay);
        hback_porch = (adjusted_mode->crtc_htotal -
                       adjusted_mode->crtc_hsync_end);
        vactive = adjusted_mode->crtc_vdisplay;