[drm:not-butter 6/12] drivers/gpu/drm/i915/ttm/i915_ttm.c:280:5: warning: no previous prototype for 'i915_ttm_bo_create' - dri-devel - freedesktop.org experimental mailing list

30 Jun 2020


      tree:   git://people.freedesktop.org/~airlied/linux.git not-butter
head:   f9de02ab2d4b7fc8d05e5fff0d5b4d8e474bbba5
commit: 5212462bfe5c8cb3f783accd4afd40413c45ac57 [6/12] i915: hacks the planet
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
reproduce (this is a W=1 build):
        git checkout 5212462bfe5c8cb3f783accd4afd40413c45ac57
        # save the attached .config to linux build tree
        make W=1 ARCH=i386
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 >>):
72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c:23:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c:23:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/umc_v6_1.h:27,
                    from drivers/gpu/drm/amd/amdgpu/umc_v6_1.c:23:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/umc_v6_1.h:27,
                    from drivers/gpu/drm/amd/amdgpu/umc_v6_1.c:23:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:478: warning: Function parameter or member 'vmhub' not described in 'gmc_v9_0_flush_gpu_tlb'
   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:588: warning: Function parameter or member 'flush_type' not described in 'gmc_v9_0_flush_gpu_tlb_pasid'
   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:588: warning: Function parameter or member 'all_hub' not described in 'gmc_v9_0_flush_gpu_tlb_pasid'
   In file included from drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: In function 'i915_ttm_init_mem_type':
   drivers/gpu/drm/i915/ttm/i915_ttm.c:28:27: warning: unused variable 'i915' [-Wunused-variable]
      28 |  struct drm_i915_private *i915 = to_i915_ttm_dev(bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: In function 'i915_ttm_bo_destroy':
   drivers/gpu/drm/i915/ttm/i915_ttm.c:225:27: warning: unused variable 'i915' [-Wunused-variable]
     225 |  struct drm_i915_private *i915 = to_i915_ttm_dev(tbo->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: At top level:
...
...
drivers/gpu/drm/i915/ttm/i915_ttm.c:280:5: warning: no previous prototype for 'i915_ttm_bo_create' [-Wmissing-prototypes]
280 | int i915_ttm_bo_create(struct drm_i915_private *i915,
         |     ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: In function 'i915_ttm_bo_placement_from_region':
   drivers/gpu/drm/i915/ttm/i915_ttm.c:298:27: warning: unused variable 'i915' [-Wunused-variable]
     298 |  struct drm_i915_private *i915 = to_i915_ttm_dev(bo->tbo.bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: At top level:
...
...
drivers/gpu/drm/i915/ttm/i915_ttm.c:593:5: warning: no previous prototype for 'i915_ttm_bo_pin_restricted' [-Wmissing-prototypes]
593 | int i915_ttm_bo_pin_restricted(struct i915_ttm_bo *bo, u32 region,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
...
...
drivers/gpu/drm/i915/ttm/i915_ttm.c:772:6: warning: no previous prototype for 'i915_ttm_gem_object_free' [-Wmissing-prototypes]
772 | void i915_ttm_gem_object_free(struct drm_gem_object *gobj)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_init':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:16:6: warning: unused variable 'ret' [-Wunused-variable]
      16 |  int ret;
         |      ^~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:13:27: warning: unused variable 'i915' [-Wunused-variable]
      13 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_fini':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:31:27: warning: unused variable 'i915' [-Wunused-variable]
      31 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_new':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:53:22: warning: unused variable 'max_bytes' [-Wunused-variable]
      53 |  uint64_t mem_bytes, max_bytes;
         |                      ^~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:47:27: warning: unused variable 'i915' [-Wunused-variable]
      47 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_del':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:142:27: warning: unused variable 'i915' [-Wunused-variable]
     142 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   In file included from drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c:762: warning: Function parameter or member 'i915' not described in 'i915_ttm_bo_get_preferred_pin_region'
   drivers/gpu/drm/i915/ttm/i915_ttm.c:762: warning: Excess function parameter 'adev' description in 'i915_ttm_bo_get_preferred_pin_region'
   In file included from drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c:25:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c:25:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_init':
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:20:6: warning: unused variable 'ret' [-Wunused-variable]
      20 |  int ret;
         |      ^~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:17:27: warning: unused variable 'i915' [-Wunused-variable]
      17 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_fini':
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:35:27: warning: unused variable 'i915' [-Wunused-variable]
      35 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: At top level:
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:52:6: warning: no previous prototype for 'i915_ttm_gtt_mgr_has_gart_addr' [-Wmissing-prototypes]
      52 | bool i915_ttm_gtt_mgr_has_gart_addr(struct ttm_mem_reg *mem)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_alloc':
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:64:27: warning: unused variable 'i915' [-Wunused-variable]
      64 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_new':
--
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c:23:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/gfxhub_v1_1.c:23:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/umc_v6_1.h:27,
                    from drivers/gpu/drm/amd/amdgpu/umc_v6_1.c:23:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/umc_v6_1.h:27,
                    from drivers/gpu/drm/amd/amdgpu/umc_v6_1.c:23:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:478: warning: Function parameter or member 'vmhub' not described in 'gmc_v9_0_flush_gpu_tlb'
   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:588: warning: Function parameter or member 'flush_type' not described in 'gmc_v9_0_flush_gpu_tlb_pasid'
   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:588: warning: Function parameter or member 'all_hub' not described in 'gmc_v9_0_flush_gpu_tlb_pasid'
   In file included from drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: In function 'i915_ttm_init_mem_type':
   drivers/gpu/drm/i915/ttm/i915_ttm.c:28:27: warning: unused variable 'i915' [-Wunused-variable]
      28 |  struct drm_i915_private *i915 = to_i915_ttm_dev(bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: In function 'i915_ttm_bo_destroy':
   drivers/gpu/drm/i915/ttm/i915_ttm.c:225:27: warning: unused variable 'i915' [-Wunused-variable]
     225 |  struct drm_i915_private *i915 = to_i915_ttm_dev(tbo->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: At top level:
...
...
drivers/gpu/drm/i915/ttm/i915_ttm.c:280:5: warning: no previous prototype for 'i915_ttm_bo_create' [-Wmissing-prototypes]
280 | int i915_ttm_bo_create(struct drm_i915_private *i915,
         |     ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: In function 'i915_ttm_bo_placement_from_region':
   drivers/gpu/drm/i915/ttm/i915_ttm.c:298:27: warning: unused variable 'i915' [-Wunused-variable]
     298 |  struct drm_i915_private *i915 = to_i915_ttm_dev(bo->tbo.bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c: At top level:
...
...
drivers/gpu/drm/i915/ttm/i915_ttm.c:593:5: warning: no previous prototype for 'i915_ttm_bo_pin_restricted' [-Wmissing-prototypes]
593 | int i915_ttm_bo_pin_restricted(struct i915_ttm_bo *bo, u32 region,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
...
...
drivers/gpu/drm/i915/ttm/i915_ttm.c:772:6: warning: no previous prototype for 'i915_ttm_gem_object_free' [-Wmissing-prototypes]
772 | void i915_ttm_gem_object_free(struct drm_gem_object *gobj)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_init':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:16:6: warning: unused variable 'ret' [-Wunused-variable]
      16 |  int ret;
         |      ^~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:13:27: warning: unused variable 'i915' [-Wunused-variable]
      13 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_fini':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:31:27: warning: unused variable 'i915' [-Wunused-variable]
      31 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_new':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:53:22: warning: unused variable 'max_bytes' [-Wunused-variable]
      53 |  uint64_t mem_bytes, max_bytes;
         |                      ^~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:47:27: warning: unused variable 'i915' [-Wunused-variable]
      47 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c: In function 'i915_ttm_vram_mgr_del':
   drivers/gpu/drm/i915/ttm/i915_ttm_vram_mgr.c:142:27: warning: unused variable 'i915' [-Wunused-variable]
     142 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   In file included from drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c:24:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm.c:762: warning: Function parameter or member 'i915' not described in 'i915_ttm_bo_get_preferred_pin_region'
   drivers/gpu/drm/i915/ttm/i915_ttm.c:762: warning: Excess function parameter 'adev' description in 'i915_ttm_bo_get_preferred_pin_region'
   In file included from drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c:25:
   drivers/gpu/drm/amd/amdgpu/amdgpu.h:190:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     190 | static const int sched_policy = KFD_SCHED_POLICY_HWS;
         |                  ^~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30,
                    from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26,
                    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c:25:
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=]
      76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL };
         |                                ^~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=]
      75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL };
         |                                ^~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=]
      74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL };
         |                                ^~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=]
      73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL };
         |                                ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=]
      72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL };
         |                                ^~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=]
      67 | static const struct fixed31_32 dc_fixpt_zero = { 0 };
         |                                ^~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_init':
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:20:6: warning: unused variable 'ret' [-Wunused-variable]
      20 |  int ret;
         |      ^~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:17:27: warning: unused variable 'i915' [-Wunused-variable]
      17 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_fini':
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:35:27: warning: unused variable 'i915' [-Wunused-variable]
      35 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: At top level:
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:52:6: warning: no previous prototype for 'i915_ttm_gtt_mgr_has_gart_addr' [-Wmissing-prototypes]
      52 | bool i915_ttm_gtt_mgr_has_gart_addr(struct ttm_mem_reg *mem)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_alloc':
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c:64:27: warning: unused variable 'i915' [-Wunused-variable]
      64 |  struct drm_i915_private *i915 = to_i915_ttm_dev(man->bdev);
         |                           ^~~~
   drivers/gpu/drm/i915/ttm/i915_ttm_gtt_mgr.c: In function 'i915_ttm_gtt_mgr_new':
..
vim +/i915_ttm_bo_create +280 drivers/gpu/drm/i915/ttm/i915_ttm.c
278	
   279
...
280	int i915_ttm_bo_create(struct drm_i915_private *i915,
281			       struct i915_ttm_bo_param *bp,
   282			       struct i915_ttm_bo **bo_ptr)
   283	{
   284		return i915_ttm_bo_do_create(i915, bp, bo_ptr);
   285	}
   286
---
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