[radeon-alex:amd-staging-drm-next 1403/1408] drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/ppevvmath.h:336:22: warning: variable 'Y_LessThanOne' set but not used

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tree:   git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next
head:   2dec4fa1c0a2e25aaef50fba28fb7360b4e7dc43
commit: 82e6bcf7c9a0c82f3d41a5837bb1dadd68037e55 [1403/1408] drm/amd/pm: optimize the power related source code layout
config: alpha-randconfig-r005-20200816 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 82e6bcf7c9a0c82f3d41a5837bb1dadd68037e55
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha 

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

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/arcturus_ppt.c: In function 'arcturus_is_dpm_running':
>> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/arcturus_ppt.c:1845:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    1845 |  int ret = 0;
         |      ^~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/arcturus_ppt.c:27:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/arcturus_ppt.c:27:
   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/../pm/swsmu/smu11/navi10_ppt.c: In function 'navi10_is_dpm_running':
>> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/navi10_ppt.c:1346:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    1346 |  int ret = 0;
         |      ^~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/navi10_ppt.c:29:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/navi10_ppt.c:29:
   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/../pm/swsmu/smu11/sienna_cichlid_ppt.c: In function 'sienna_cichlid_is_dpm_running':
>> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:1150:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    1150 |  int ret = 0;
         |      ^~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:29:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/amdgpu.h:65,
                    from drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu11/sienna_cichlid_ppt.c:29:
   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/../pm/powerplay/smumgr/tonga_smumgr.c: In function 'tonga_thermal_setup_fan_table':
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/tonga_smumgr.c:2469:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
    2469 |  int res;
         |      ^~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/inc/amd_powerplay.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/tonga_smumgr.c:30:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/../pm/inc/amd_powerplay.h:31,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/tonga_smumgr.c:30:
   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/../pm/powerplay/smumgr/fiji_smumgr.c: In function 'fiji_populate_smc_boot_level':
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/fiji_smumgr.c:1604:6: warning: variable 'result' set but not used [-Wunused-but-set-variable]
    1604 |  int result = 0;
         |      ^~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/inc/amd_powerplay.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/fiji_smumgr.c:25:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/../pm/inc/amd_powerplay.h:31,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/fiji_smumgr.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/amd/amdgpu/../pm/powerplay/smumgr/polaris10_smumgr.c: In function 'polaris10_populate_smc_boot_level':
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/polaris10_smumgr.c:1453:6: warning: variable 'result' set but not used [-Wunused-but-set-variable]
    1453 |  int result = 0;
         |      ^~~~~~
   drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/polaris10_smumgr.c: At top level:
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/polaris10_smumgr.c:2045:5: warning: no previous prototype for 'polaris10_thermal_avfs_enable' [-Wmissing-prototypes]
    2045 | int polaris10_thermal_avfs_enable(struct pp_hwmgr *hwmgr)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/inc/amd_powerplay.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/polaris10_smumgr.c:27:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/../pm/inc/amd_powerplay.h:31,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/polaris10_smumgr.c:27:
   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/../pm/powerplay/smumgr/iceland_smumgr.c:2085:5: warning: no previous prototype for 'iceland_thermal_setup_fan_table' [-Wmissing-prototypes]
    2085 | int iceland_thermal_setup_fan_table(struct pp_hwmgr *hwmgr)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/iceland_smumgr.c: In function 'iceland_thermal_setup_fan_table':
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/iceland_smumgr.c:2093:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
    2093 |  int res;
         |      ^~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/inc/amd_powerplay.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/iceland_smumgr.c:32:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/../pm/inc/amd_powerplay.h:31,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/iceland_smumgr.c:32:
   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/../pm/powerplay/smumgr/ci_smumgr.c: In function 'ci_thermal_setup_fan_table':
>> drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/ci_smumgr.c:2131:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
    2131 |  int res;
         |      ^~~
   In file included from drivers/gpu/drm/amd/amdgpu/../pm/inc/amd_powerplay.h:33,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/ci_smumgr.c:30:
   At top level:
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:195:19: warning: 'no_system_mem_limit' defined but not used [-Wunused-const-variable=]
     195 | static const bool no_system_mem_limit;
         |                   ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:194:19: warning: 'debug_evictions' defined but not used [-Wunused-const-variable=]
     194 | static const bool debug_evictions; /* = false */
         |                   ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu.h:193:18: warning: 'sched_policy' defined but not used [-Wunused-const-variable=]
     193 | 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/../pm/inc/amd_powerplay.h:31,
                    from drivers/gpu/drm/amd/amdgpu/../pm/inc/smumgr.h:26,
                    from drivers/gpu/drm/amd/amdgpu/../pm/powerplay/smumgr/ci_smumgr.c:30:
   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 };
         |                                ^~~~~~~~~~~~~
..

vim +/Y_LessThanOne +336 drivers/gpu/drm/amd/amdgpu/../pm/powerplay/hwmgr/ppevvmath.h

770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  331  
21039ac388c5325 drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Nils Wallménius 2016-04-24  332  static fInt fMultiply (fInt X, fInt Y) /* Uses 64-bit integers (int64_t) */
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  333  {
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  334  	fInt Product;
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  335  	int64_t tempProduct;
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09 @336  	bool X_LessThanOne, Y_LessThanOne;
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  337  
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  338  	X_LessThanOne = (X.partial.real == 0 && X.partial.decimal != 0 && X.full >= 0);
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  339  	Y_LessThanOne = (Y.partial.real == 0 && Y.partial.decimal != 0 && Y.full >= 0);
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  340  
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  341  	/*The following is for a very specific common case: Non-zero number with ONLY fractional portion*/
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  342  	/* TEMPORARILY DISABLED - CAN BE USED TO IMPROVE PRECISION
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  343  
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  344  	if (X_LessThanOne && Y_LessThanOne) {
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  345  		Product.full = X.full * Y.full;
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  346  		return Product
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  347  	}*/
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  348  
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  349  	tempProduct = ((int64_t)X.full) * ((int64_t)Y.full); /*Q(16,16)*Q(16,16) = Q(32, 32) - Might become a negative number! */
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  350  	tempProduct = tempProduct >> 16; /*Remove lagging 16 bits - Will lose some precision from decimal; */
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  351  	Product.full = (int)tempProduct; /*The int64_t will lose the leading 16 bits that were part of the integer portion */
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  352  
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  353  	return Product;
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  354  }
770911a3cfbb43b drivers/gpu/drm/amd/powerplay/hwmgr/ppevvmath.h Eric Huang      2015-11-09  355  

:::::: The code at line 336 was first introduced by commit
:::::: 770911a3cfbb43b67b5ea3189b624e4fe2cb27c1 drm/amd/powerplay: add/update headers for Fiji SMU and DPM

:::::: TO: Eric Huang <JinHuiEric.Huang@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>

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