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drm/modes: tag unused variables to avoid warnings 

Some variables are set but never used. To avoid warning when compiling
with W=1 and keep the algorithm like it is tag theses variables
with _maybe_unused macro.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20191210102437.19377-1-benjamin.gaignard@st.com
This commit is contained in:
Benjamin Gaignard 2019-12-10 11:24:37 +01:00
parent a511981847
commit f199af0018
1 changed files with 5 additions and 4 deletions
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9
drivers/gpu/drm/drm_modes.c
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@ -233,7 +233,7 @@ struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay,
/* 3) Nominal HSync width (% of line period) - default 8 */ /* 3) Nominal HSync width (% of line period) - default 8 */
#define CVT_HSYNC_PERCENTAGE 8 #define CVT_HSYNC_PERCENTAGE 8
unsigned int hblank_percentage; unsigned int hblank_percentage;
int vsyncandback_porch, vback_porch, hblank; int vsyncandback_porch, __maybe_unused vback_porch, hblank;
/* estimated the horizontal period */ /* estimated the horizontal period */
tmp1 = HV_FACTOR * 1000000 - tmp1 = HV_FACTOR * 1000000 -
@ -386,9 +386,10 @@ drm_gtf_mode_complex(struct drm_device *dev, int hdisplay, int vdisplay,
int top_margin, bottom_margin; int top_margin, bottom_margin;
int interlace; int interlace;
unsigned int hfreq_est; unsigned int hfreq_est;
int vsync_plus_bp, vback_porch; int vsync_plus_bp, __maybe_unused vback_porch;
unsigned int vtotal_lines, vfieldrate_est, hperiod; unsigned int vtotal_lines, __maybe_unused vfieldrate_est;
unsigned int vfield_rate, vframe_rate; unsigned int __maybe_unused hperiod;
unsigned int vfield_rate, __maybe_unused vframe_rate;
int left_margin, right_margin; int left_margin, right_margin;
unsigned int total_active_pixels, ideal_duty_cycle; unsigned int total_active_pixels, ideal_duty_cycle;
unsigned int hblank, total_pixels, pixel_freq; unsigned int hblank, total_pixels, pixel_freq;