tree: git://people.freedesktop.org/~agd5f/linux.git drm-next head: 7aebbbd59a2ee62e3b75d7e8e3617171c3c6a208 commit: 4dc079787b23524c4d88a21bc25db29e9e525eb2 [448/499] drm/amd/display: Use dmub fw to lock pipe, cursor, dig config: i386-randconfig-a014-20200624 (attached as .config) compiler: gcc-4.9 (Ubuntu 4.9.3-13ubuntu2) 4.9.3 reproduce (this is a W=1 build): git checkout 4dc079787b23524c4d88a21bc25db29e9e525eb2 # 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 >>):

In file included from drivers/gpu/drm/amd/amdgpu/../display/dmub/dmub_srv.h:67:0, from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.h:30, from drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_hw_lock_mgr.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_hw_lock_mgr.c:26: drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h: In function 'dmub_rb_flush_pending': drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h:752:12: warning: variable 'temp' set but not used [-Wunused-but-set-variable] uint64_t temp; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_hw_lock_mgr.c: In function 'dmub_hw_lock_mgr_cmd':

...

drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_hw_lock_mgr.c:36:8: warning: missing braces around initializer [-Wmissing-braces]

union dmub_rb_cmd cmd = { 0 }; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_hw_lock_mgr.c:36:8: warning: (near initialization for 'cmd.lock_hw') [-Wmissing-braces] -- In file included from drivers/gpu/drm/amd/amdgpu/../display/dmub/dmub_srv.h:67:0, from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.h:30, from drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:52: drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h: In function 'dmub_rb_flush_pending': drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h:752:12: warning: variable 'temp' set but not used [-Wunused-but-set-variable] uint64_t temp; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c: At top level: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:1081:6: warning: no previous prototype for 'dcn20_enable_plane' [-Wmissing-prototypes] void dcn20_enable_plane( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c: In function 'dcn20_pipe_control_lock':

...

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:1200:9: warning: missing braces around initializer [-Wmissing-braces]

union dmub_hw_lock_flags hw_locks = { 0 }; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:1200:9: warning: (near initialization for 'hw_locks.bits') [-Wmissing-braces] drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c: In function 'dcn20_update_dchubp_dpp': drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:1369:7: warning: variable 'viewport_changed' set but not used [-Wunused-but-set-variable] bool viewport_changed = false; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c: At top level: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:2200:6: warning: no previous prototype for 'dcn20_get_mpctree_visual_confirm_color' [-Wmissing-prototypes] void dcn20_get_mpctree_visual_confirm_color( ^ -- In file included from drivers/gpu/drm/amd/amdgpu/../display/dmub/dmub_srv.h:67:0, from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.h:30, from drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:61: drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h: In function 'dmub_rb_flush_pending': drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h:752:12: warning: variable 'temp' set but not used [-Wunused-but-set-variable] uint64_t temp; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c: At top level: drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:777:6: warning: no previous prototype for 'apply_ctx_interdependent_lock' [-Wmissing-prototypes] void apply_ctx_interdependent_lock(struct dc *dc, struct dc_state *context, struct dc_stream_state *stream, bool lock) ^ drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c: In function 'commit_planes_for_stream':

...

drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2328:11: warning: missing braces around initializer [-Wmissing-braces]

union dmub_hw_lock_flags hw_locks = { 0 }; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2328:11: warning: (near initialization for 'hw_locks.bits') [-Wmissing-braces] drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2513:11: warning: missing braces around initializer [-Wmissing-braces] union dmub_hw_lock_flags hw_locks = { 0 }; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2513:11: warning: (near initialization for 'hw_locks.bits') [-Wmissing-braces]

vim +36 drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_hw_lock_mgr.c

30 31 void dmub_hw_lock_mgr_cmd(struct dc_dmub_srv *dmub_srv, 32 bool lock, 33 union dmub_hw_lock_flags *hw_locks, 34 struct dmub_hw_lock_inst_flags *inst_flags) 35 {

36 union dmub_rb_cmd cmd = { 0 };

37 38 cmd.lock_hw.header.type = DMUB_CMD__HW_LOCK; 39 cmd.lock_hw.header.sub_type = 0; 40 cmd.lock_hw.header.payload_bytes = sizeof(struct dmub_cmd_lock_hw_data); 41 cmd.lock_hw.lock_hw_data.client = HW_LOCK_CLIENT_DRIVER; 42 cmd.lock_hw.lock_hw_data.lock = lock; 43 cmd.lock_hw.lock_hw_data.hw_locks.u8All = hw_locks->u8All; 44 memcpy(&cmd.lock_hw.lock_hw_data.inst_flags, inst_flags, sizeof(struct dmub_hw_lock_inst_flags)); 45 46 if (!lock) 47 cmd.lock_hw.lock_hw_data.should_release = 1; 48 49 dc_dmub_srv_cmd_queue(dmub_srv, &cmd); 50 dc_dmub_srv_cmd_execute(dmub_srv); 51 dc_dmub_srv_wait_idle(dmub_srv); 52 } 53

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