Re: [PATCH 05/10] drm/i915/display: Compute the scaler filter coefficients

[kernel test robot <lkp@intel.com>]

Hi Nemesa,

kernel test robot noticed the following build warnings:

[auto build test WARNING on drm-xe/drm-xe-next]
[also build test WARNING on next-20250305]
[cannot apply to drm-exynos/exynos-drm-next linus/master v6.14-rc5]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Nemesa-Garg/drm-i915-display-Introduce-sharpness-strength-property/20250304-184502
base:   https://gitlab.freedesktop.org/drm/xe/kernel.git drm-xe-next
patch link:    https://lore.kernel.org/r/20250304102857.326544-6-nemesa.garg%40intel.com
patch subject: [PATCH 05/10] drm/i915/display: Compute the scaler filter coefficients
config: mips-randconfig-r132-20250305 (https://download.01.org/0day-ci/archive/20250306/202503060720.C5qW8bAI-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce: (https://download.01.org/0day-ci/archive/20250306/202503060720.C5qW8bAI-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/202503060720.C5qW8bAI-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/i915/display/intel_casf.c:43:11: sparse: sparse: symbol 'filtercoeff_1' was not declared. Should it be static?
>> drivers/gpu/drm/i915/display/intel_casf.c:49:11: sparse: sparse: symbol 'filtercoeff_2' was not declared. Should it be static?
>> drivers/gpu/drm/i915/display/intel_casf.c:55:11: sparse: sparse: symbol 'filtercoeff_3' was not declared. Should it be static?

vim +/filtercoeff_1 +43 drivers/gpu/drm/i915/display/intel_casf.c

    42	
  > 43	const u16 filtercoeff_1[] = {
    44		FILTER_COEFF_0_0, FILTER_COEFF_0_0, FILTER_COEFF_0_5,
    45		FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_0,
    46		FILTER_COEFF_0_0,
    47	};
    48	
  > 49	const u16 filtercoeff_2[] = {
    50		FILTER_COEFF_0_0, FILTER_COEFF_0_25, FILTER_COEFF_0_5,
    51		FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_25,
    52		FILTER_COEFF_0_0,
    53	};
    54	
  > 55	const u16 filtercoeff_3[] = {
    56		FILTER_COEFF_0_125, FILTER_COEFF_0_25, FILTER_COEFF_0_5,
    57		FILTER_COEFF_1_0, FILTER_COEFF_0_5, FILTER_COEFF_0_25,
    58		FILTER_COEFF_0_125,
    59	};
    60	

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