Re: [PATCH 16/19] drm/i915/guc: Use a single pass to calculate regset

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

Hi Lucas,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-tip/drm-tip]
[also build test WARNING on next-20220125]
[cannot apply to drm-intel/for-linux-next drm-exynos/exynos-drm-next drm/drm-next tegra-drm/drm/tegra/for-next linus/master airlied/drm-next v5.17-rc1]
[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/Lucas-De-Marchi/drm-i915-guc-Refactor-ADS-access-to-use-dma_buf_map/20220127-043912
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
config: i386-randconfig-m021-20220124 (https://download.01.org/0day-ci/archive/20220127/202201270827.CLIhfdPe-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/313757d9ed833acea4ee2bb0e3f3565d6efcf3cc
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Lucas-De-Marchi/drm-i915-guc-Refactor-ADS-access-to-use-dma_buf_map/20220127-043912
        git checkout 313757d9ed833acea4ee2bb0e3f3565d6efcf3cc
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/

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

All warnings (new ones prefixed by >>):

   In file included from include/drm/drm_mm.h:51,
                    from drivers/gpu/drm/i915/i915_vma.h:31,
                    from drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h:13,
                    from drivers/gpu/drm/i915/gt/uc/intel_guc.h:20,
                    from drivers/gpu/drm/i915/gt/uc/intel_uc.h:9,
                    from drivers/gpu/drm/i915/gt/intel_gt_types.h:18,
                    from drivers/gpu/drm/i915/gt/intel_gt.h:10,
                    from drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c:9:
   drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c: In function 'guc_mmio_reg_state_create':
>> drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c:369:38: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'u32' {aka 'unsigned int'} [-Wformat=]
     369 |  drm_dbg(&guc_to_gt(guc)->i915->drm, "Used %lu KB for temporary ADS regset\n",
         |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     370 |   (temp_set.storage_max * sizeof(struct guc_mmio_reg)) >> 10);
         |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                                                        |
         |                                                        u32 {aka unsigned int}
   include/drm/drm_print.h:461:56: note: in definition of macro 'drm_dbg'
     461 |  drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__)
         |                                                        ^~~
   drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c:369:46: note: format string is defined here
     369 |  drm_dbg(&guc_to_gt(guc)->i915->drm, "Used %lu KB for temporary ADS regset\n",
         |                                            ~~^
         |                                              |
         |                                              long unsigned int
         |                                            %u


vim +369 drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c

   348	
   349	static long guc_mmio_reg_state_create(struct intel_guc *guc)
   350	{
   351		struct intel_gt *gt = guc_to_gt(guc);
   352		struct intel_engine_cs *engine;
   353		enum intel_engine_id id;
   354		struct temp_regset temp_set = {};
   355		long total = 0;
   356	
   357		for_each_engine(engine, gt, id) {
   358			u32 used = temp_set.storage_used;
   359	
   360			if (guc_mmio_regset_init(&temp_set, engine) < 0)
   361				return -1;
   362	
   363			guc->ads_regset_count[id] = temp_set.storage_used - used;
   364			total += guc->ads_regset_count[id];
   365		}
   366	
   367		guc->ads_regset = temp_set.storage;
   368	
 > 369		drm_dbg(&guc_to_gt(guc)->i915->drm, "Used %lu KB for temporary ADS regset\n",
   370			(temp_set.storage_max * sizeof(struct guc_mmio_reg)) >> 10);
   371	
   372		return total * sizeof(struct guc_mmio_reg);
   373	}
   374	

---
0-DAY CI Kernel Test Service, Intel Corporation
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