[intel-lts:pr/57 1/1] drivers/gpu/drm/arm/display/komeda/komeda_plane.c:49:29: warning: variable 'kcrtc' set but not used

[intel-lts:pr/57 1/1] drivers/gpu/drm/arm/display/komeda/komeda_plane.c:49:29: warning: variable 'kcrtc' set but not used

[kernel test robot]

Hi james,

FYI, the error/warning still remains.

tree:   https://github.com/intel/linux-intel-lts.git pr/57
head:   6fe7458ff80d33a5dba8b386c88d33ffd2ccb47d
commit: 9e560309417638507398fd6239e04f47cc907f70 [1/1] drm/komeda: Add komeda_plane/plane_helper_funcs
config: x86_64-buildonly-randconfig-005-20250217 (https://download.01.org/0day-ci/archive/20250218/202502180923.7KfSpW4E-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250218/202502180923.7KfSpW4E-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502180923.7KfSpW4E-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/arm/display/komeda/komeda_plane.c:42:5: warning: no previous prototype for 'komeda_plane_atomic_check' [-Wmissing-prototypes]
      42 | int komeda_plane_atomic_check(struct drm_plane *plane,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/arm/display/komeda/komeda_plane.c: In function 'komeda_plane_atomic_check':
>> drivers/gpu/drm/arm/display/komeda/komeda_plane.c:49:29: warning: variable 'kcrtc' set but not used [-Wunused-but-set-variable]
      49 |         struct komeda_crtc *kcrtc;
         |                             ^~~~~
   drivers/gpu/drm/arm/display/komeda/komeda_plane.c: At top level:
   drivers/gpu/drm/arm/display/komeda/komeda_plane.c:82:6: warning: no previous prototype for 'komeda_plane_atomic_update' [-Wmissing-prototypes]
      82 | void komeda_plane_atomic_update(struct drm_plane *plane,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/kcrtc +49 drivers/gpu/drm/arm/display/komeda/komeda_plane.c

    41	
  > 42	int komeda_plane_atomic_check(struct drm_plane *plane,
    43				      struct drm_plane_state *state)
    44	{
    45		struct komeda_plane *kplane = to_kplane(plane);
    46		struct komeda_plane_state *kplane_st = to_kplane_st(state);
    47		struct komeda_layer *layer = kplane->layer;
    48		struct drm_crtc_state *crtc_st;
  > 49		struct komeda_crtc *kcrtc;
    50		struct komeda_crtc_state *kcrtc_st;
    51		struct komeda_data_flow_cfg dflow;
    52		int err;
    53	
    54		if (!state->crtc || !state->fb)
    55			return 0;
    56	
    57		crtc_st = drm_atomic_get_crtc_state(state->state, state->crtc);
    58		if (!crtc_st->enable) {
    59			DRM_DEBUG_ATOMIC("Cannot update plane on a disabled CRTC.\n");
    60			return -EINVAL;
    61		}
    62	
    63		/* crtc is inactive, skip the resource assignment */
    64		if (!crtc_st->active)
    65			return 0;
    66	
    67		kcrtc = to_kcrtc(state->crtc);
    68		kcrtc_st = to_kcrtc_st(crtc_st);
    69	
    70		err = komeda_plane_init_data_flow(state, &dflow);
    71		if (err)
    72			return err;
    73	
    74		err = komeda_build_layer_data_flow(layer, kplane_st, kcrtc_st, &dflow);
    75	
    76		return err;
    77	}
    78	

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