Hi Rex,
FYI, the error/warning still remains.
tree: git://people.freedesktop.org/~agd5f/linux.git amd-17.50 head: 4b295aab3256d700354748dcd64017d76065d684 commit: 9c2014d08693830897cad6bbd359d905825d8a18 [2016/2100] drm/amd/powerplay: add CI asics support to smumgr config: i386-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025 reproduce: git checkout 9c2014d08693830897cad6bbd359d905825d8a18 # save the attached .config to linux build tree make ARCH=i386
Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
All warnings (new ones prefixed by >>):
drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c: In function 'ci_init_smc_table':
drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c:579:62: warning: 'tmp' may be used uninitialized in this function [-Wmaybe-uninitialized]
smu_data->power_tune_table.FuzzyFan_PwmSetDelta = CONVERT_FROM_HOST_TO_SMC_US(tmp); ~^~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c:571:11: note: 'tmp' was declared here uint16_t tmp; ^~~
vim +/tmp +579 drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c
568 569 static int ci_populate_fuzzy_fan(struct pp_hwmgr *hwmgr, uint32_t fuse_table_offset) 570 { 571 uint16_t tmp; 572 struct ci_smumgr *smu_data = (struct ci_smumgr *)(hwmgr->smumgr->backend); 573 574 if ((hwmgr->thermal_controller.advanceFanControlParameters.usFanOutputSensitivity & (1 << 15)) 575 || 0 == hwmgr->thermal_controller.advanceFanControlParameters.usFanOutputSensitivity) 576 tmp = hwmgr->thermal_controller.advanceFanControlParameters.usFanOutputSensitivity 577 = hwmgr->thermal_controller.advanceFanControlParameters.usDefaultFanOutputSensitivity; 578
579 smu_data->power_tune_table.FuzzyFan_PwmSetDelta = CONVERT_FROM_HOST_TO_SMC_US(tmp);
580 581 return 0; 582 } 583
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