Re: [Intel-gfx] [PATCH v2 5/7] drm/i915/dmc: abstract GPU error state dump

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

Hi Jani,

I love your patch! Yet something to improve:

[auto build test ERROR on drm-tip/drm-tip]
[cannot apply to drm-intel/for-linux-next v5.17 next-20220321]
[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]

url:    https://github.com/0day-ci/linux/commits/Jani-Nikula/drm-i915-dmc-cleanups/20220321-215213
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: i386-randconfig-s002 (https://download.01.org/0day-ci/archive/20220322/202203221023.tCblMieg-lkp@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/1e23e4b2519941d741e3489536b37823cece69d8
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jani-Nikula/drm-i915-dmc-cleanups/20220321-215213
        git checkout 1e23e4b2519941d741e3489536b37823cece69d8
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/i915/display/intel_dmc.c: In function 'intel_dmc_print_error_state':
>> drivers/gpu/drm/i915/display/intel_dmc.c:822:2: error: implicit declaration of function 'i915_error_printf' [-Werror=implicit-function-declaration]
     822 |  i915_error_printf(m, "DMC loaded: %s\n",
         |  ^~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/i915_error_printf +822 drivers/gpu/drm/i915/display/intel_dmc.c

   813	
   814	void intel_dmc_print_error_state(struct drm_i915_error_state_buf *m,
   815					 struct drm_i915_private *i915)
   816	{
   817		struct intel_dmc *dmc = &i915->dmc;
   818	
   819		if (!HAS_DMC(i915))
   820			return;
   821	
 > 822		i915_error_printf(m, "DMC loaded: %s\n",
   823				  str_yes_no(intel_dmc_has_payload(i915)));
   824		i915_error_printf(m, "DMC fw version: %d.%d\n",
   825				  DMC_VERSION_MAJOR(dmc->version),
   826				  DMC_VERSION_MINOR(dmc->version));
   827	}
   828	

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