tree: git://people.freedesktop.org/~agd5f/linux.git amd-20.45 head: a3950d94b046fb206e58fd3ec717f071c0203ba3 commit: 5dcf8eb3991298ab764be6f83eaa48f75d49e77a [2392/2427] drm/amd/display: add copy of drm_dp_mst_add_affected_dsc_crtc() config: i386-randconfig-r022-20201214 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git remote add radeon-alex git://people.freedesktop.org/~agd5f/linux.git git fetch --no-tags radeon-alex amd-20.45 git checkout 5dcf8eb3991298ab764be6f83eaa48f75d49e77a # 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 >>):

from include/kcl/backport/kcl_fence_backport.h:4, from drivers/gpu/drm/amd/backport/backport.h:13, from <command-line>: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'get_fb_info': drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3979:44: warning: passing argument 1 of 'drm_gem_fb_get_obj' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 3979 | rbo = gem_to_amdgpu_bo(drm_gem_fb_get_obj(&amdgpu_fb->base, 0)); | ^~~~~~~~~~~~~~~~ include/linux/kernel.h:986:26: note: in definition of macro 'container_of' 986 | void *__mptr = (void *)(ptr); \ | ^~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3979:8: note: in expansion of macro 'gem_to_amdgpu_bo' 3979 | rbo = gem_to_amdgpu_bo(drm_gem_fb_get_obj(&amdgpu_fb->base, 0)); | ^~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu_drm_fb_helper.h:6, from drivers/gpu/drm/amd/backport/backport.h:62, from <command-line>: include/drm/drm_gem_framebuffer_helper.h:15:24: note: expected 'struct drm_framebuffer *' but argument is of type 'const struct drm_framebuffer *' 15 | struct drm_gem_object *drm_gem_fb_get_obj(struct drm_framebuffer *fb, | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/rcupdate.h:24, from include/kcl/kcl_rcupdate.h:5, from include/kcl/kcl_fence.h:6, from include/kcl/backport/kcl_fence_backport.h:4, from drivers/gpu/drm/amd/backport/backport.h:13, from <command-line>: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3979:44: warning: passing argument 1 of 'drm_gem_fb_get_obj' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 3979 | rbo = gem_to_amdgpu_bo(drm_gem_fb_get_obj(&amdgpu_fb->base, 0)); | ^~~~~~~~~~~~~~~~ include/linux/compiler.h:330:9: note: in definition of macro '__compiletime_assert' 330 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert' 350 | _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/kernel.h:987:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' 987 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ | ^~~~~~~~~~~~~~~~ include/linux/kernel.h:987:20: note: in expansion of macro '__same_type' 987 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h:34:32: note: in expansion of macro 'container_of' 34 | #define gem_to_amdgpu_bo(gobj) container_of((gobj), struct amdgpu_bo, tbo.base) | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3979:8: note: in expansion of macro 'gem_to_amdgpu_bo' 3979 | rbo = gem_to_amdgpu_bo(drm_gem_fb_get_obj(&amdgpu_fb->base, 0)); | ^~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu_drm_fb_helper.h:6, from drivers/gpu/drm/amd/backport/backport.h:62, from <command-line>: include/drm/drm_gem_framebuffer_helper.h:15:24: note: expected 'struct drm_framebuffer *' but argument is of type 'const struct drm_framebuffer *' 15 | struct drm_gem_object *drm_gem_fb_get_obj(struct drm_framebuffer *fb, | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/rcupdate.h:24, from include/kcl/kcl_rcupdate.h:5, from include/kcl/kcl_fence.h:6, from include/kcl/backport/kcl_fence_backport.h:4, from drivers/gpu/drm/amd/backport/backport.h:13, from <command-line>: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3979:44: warning: passing argument 1 of 'drm_gem_fb_get_obj' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 3979 | rbo = gem_to_amdgpu_bo(drm_gem_fb_get_obj(&amdgpu_fb->base, 0)); | ^~~~~~~~~~~~~~~~ include/linux/compiler.h:330:9: note: in definition of macro '__compiletime_assert' 330 | if (!(condition)) \ | ^~~~~~~~~ include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert' 350 | _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) | ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' 39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) | ^~~~~~~~~~~~~~~~~~ include/linux/kernel.h:987:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' 987 | BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \ | ^~~~~~~~~~~~~~~~ include/linux/kernel.h:988:6: note: in expansion of macro '__same_type' 988 | !__same_type(*(ptr), void), \ | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h:34:32: note: in expansion of macro 'container_of' 34 | #define gem_to_amdgpu_bo(gobj) container_of((gobj), struct amdgpu_bo, tbo.base) | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3979:8: note: in expansion of macro 'gem_to_amdgpu_bo' 3979 | rbo = gem_to_amdgpu_bo(drm_gem_fb_get_obj(&amdgpu_fb->base, 0)); | ^~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu_drm_fb_helper.h:6, from drivers/gpu/drm/amd/backport/backport.h:62, from <command-line>: include/drm/drm_gem_framebuffer_helper.h:15:24: note: expected 'struct drm_framebuffer *' but argument is of type 'const struct drm_framebuffer *' 15 | struct drm_gem_object *drm_gem_fb_get_obj(struct drm_framebuffer *fb, | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'dm_update_mst_vcpi_slots_for_dsc': drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6227:46: warning: variable 'old_con_state' set but not used [-Wunused-but-set-variable] 6227 | struct drm_connector_state *new_con_state, *old_con_state; | ^~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_commit_cursors': drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:7697:44: warning: variable 'new_plane_state' set but not used [-Wunused-but-set-variable] 7697 | struct drm_plane_state *old_plane_state, *new_plane_state; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: At top level:

...

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:9376:5: warning: no previous prototype for 'amdgpu_dm_dp_mst_add_affected_dsc_crtcs' [-Wmissing-prototypes]

9376 | int amdgpu_dm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_atomic_check': drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:9544:25: warning: unused variable 'dm_old_crtc_state' [-Wunused-variable] 9544 | struct dm_crtc_state *dm_old_crtc_state = to_dm_crtc_state(old_crtc_state); | ^~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:9543:25: warning: unused variable 'dm_new_crtc_state' [-Wunused-variable] 9543 | struct dm_crtc_state *dm_new_crtc_state = to_dm_crtc_state(new_crtc_state); | ^~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:93: At top level: drivers/gpu/drm/amd/include/vega10_ip_offset.h:208:29: warning: 'FUSE_BASE' defined but not used [-Wunused-const-variable=] 208 | static const struct IP_BASE FUSE_BASE = { { { { 0x00017400, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:203:29: warning: 'CLK_BASE' defined but not used [-Wunused-const-variable=] 203 | static const struct IP_BASE CLK_BASE = { { { { 0x00016C00, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:198:29: warning: 'PWR_BASE' defined but not used [-Wunused-const-variable=] 198 | static const struct IP_BASE PWR_BASE = { { { { 0x00016A00, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:193:29: warning: 'SMUIO_BASE' defined but not used [-Wunused-const-variable=] 193 | static const struct IP_BASE SMUIO_BASE = { { { { 0x00016800, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:188:29: warning: 'THM_BASE' defined but not used [-Wunused-const-variable=] 188 | static const struct IP_BASE THM_BASE = { { { { 0x00016600, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:183:29: warning: 'UMC_BASE' defined but not used [-Wunused-const-variable=] 183 | static const struct IP_BASE UMC_BASE = { { { { 0x00014000, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:178:29: warning: 'XDMA_BASE' defined but not used [-Wunused-const-variable=] 178 | static const struct IP_BASE XDMA_BASE = { { { { 0x00003400, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:173:29: warning: 'SDMA1_BASE' defined but not used [-Wunused-const-variable=] 173 | static const struct IP_BASE SDMA1_BASE = { { { { 0x00001460, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:168:29: warning: 'SDMA0_BASE' defined but not used [-Wunused-const-variable=] 168 | static const struct IP_BASE SDMA0_BASE = { { { { 0x00001260, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:163:29: warning: 'OSSSYS_BASE' defined but not used [-Wunused-const-variable=] 163 | static const struct IP_BASE OSSSYS_BASE = { { { { 0x000010A0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:158:29: warning: 'HDP_BASE' defined but not used [-Wunused-const-variable=] 158 | static const struct IP_BASE HDP_BASE = { { { { 0x00000F20, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:153:29: warning: 'RSMU_BASE' defined but not used [-Wunused-const-variable=] 153 | static const struct IP_BASE RSMU_BASE = { { { { 0x00012000, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:148:29: warning: 'MMHUB_BASE' defined but not used [-Wunused-const-variable=] 148 | static const struct IP_BASE MMHUB_BASE = { { { { 0x0001A000, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:143:29: warning: 'GC_BASE' defined but not used [-Wunused-const-variable=] 143 | static const struct IP_BASE GC_BASE = { { { { 0x00002000, 0x0000A000, 0, 0, 0 } }, | ^~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:138:29: warning: 'VCE_BASE' defined but not used [-Wunused-const-variable=] 138 | static const struct IP_BASE VCE_BASE = { { { { 0x00007E00, 0x00048800, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:133:29: warning: 'ATHUB_BASE' defined but not used [-Wunused-const-variable=] 133 | static const struct IP_BASE ATHUB_BASE = { { { { 0x00000C20, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:128:29: warning: 'IOHC_BASE' defined but not used [-Wunused-const-variable=] 128 | static const struct IP_BASE IOHC_BASE = { { { { 0x00010000, 0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:123:29: warning: 'L2IMU_BASE' defined but not used [-Wunused-const-variable=] 123 | static const struct IP_BASE L2IMU_BASE = { { { { 0x00007DC0, 0, 0, 0, 0 } }, | ^~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:118:29: warning: 'SYSTEMHUB_BASE' defined but not used [-Wunused-const-variable=] 118 | static const struct IP_BASE SYSTEMHUB_BASE = { { { { 0x00000EA0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:113:29: warning: 'ISP_BASE' defined but not used [-Wunused-const-variable=] 113 | static const struct IP_BASE ISP_BASE = { { { { 0x00018000, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:108:29: warning: 'DFX_BASE' defined but not used [-Wunused-const-variable=] 108 | static const struct IP_BASE DFX_BASE = { { { { 0x00000580, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:103:29: warning: 'DFX_DAP_BASE' defined but not used [-Wunused-const-variable=] 103 | static const struct IP_BASE DFX_DAP_BASE = { { { { 0x000005A0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:98:29: warning: 'DBGU_IO_BASE' defined but not used [-Wunused-const-variable=] 98 | static const struct IP_BASE DBGU_IO_BASE = { { { { 0x000001E0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:93:29: warning: 'DBGU_NBIO_BASE' defined but not used [-Wunused-const-variable=] 93 | static const struct IP_BASE DBGU_NBIO_BASE = { { { { 0x000001C0, 0, 0, 0, 0 } }, | ^~~~~~~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:88:29: warning: 'DBGU_BASE' defined but not used [-Wunused-const-variable=] 88 | static const struct IP_BASE DBGU_BASE = { { { { 0x00000180, 0x000001A0, 0, 0, 0 } }, | ^~~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:83:29: warning: 'VCN_BASE' defined but not used [-Wunused-const-variable=] 83 | static const struct IP_BASE VCN_BASE = { { { { 0x00007800, 0x00007E00, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:78:29: warning: 'UVD_BASE' defined but not used [-Wunused-const-variable=] 78 | static const struct IP_BASE UVD_BASE = { { { { 0x00007800, 0x00007E00, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:73:29: warning: 'DF_BASE' defined but not used [-Wunused-const-variable=] 73 | static const struct IP_BASE DF_BASE = { { { { 0x00007000, 0, 0, 0, 0 } }, | ^~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:68:29: warning: 'MP2_BASE' defined but not used [-Wunused-const-variable=] 68 | static const struct IP_BASE MP2_BASE = { { { { 0x00016000, 0, 0, 0, 0 } }, | ^~~~~~~~ drivers/gpu/drm/amd/include/vega10_ip_offset.h:63:29: warning: 'MP1_BASE' defined but not used [-Wunused-const-variable=] 63 | static const struct IP_BASE MP1_BASE = { { { { 0x00016000, 0, 0, 0, 0 } },

vim +/amdgpu_dm_dp_mst_add_affected_dsc_crtcs +9376 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c

9374 9375 #if defined(HAVE_DRM_DP_MST_ADD_AFFECTED_DSC_CRTCS)

9376 int amdgpu_dm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr)

9377 { 9378 struct drm_dp_mst_topology_state *mst_state; 9379 struct drm_dp_vcpi_allocation *pos; 9380 struct drm_connector *connector; 9381 struct drm_connector_state *conn_state; 9382 struct drm_crtc *crtc; 9383 struct drm_crtc_state *crtc_state; 9384 9385 mst_state = drm_atomic_get_mst_topology_state(state, mgr); 9386 9387 if (IS_ERR(mst_state)) 9388 return -EINVAL; 9389 9390 list_for_each_entry(pos, &mst_state->vcpis, next) { 9391 9392 connector = pos->port->connector; 9393 9394 if (!connector) 9395 return -EINVAL; 9396 9397 conn_state = drm_atomic_get_connector_state(state, connector); 9398 9399 if (IS_ERR(conn_state)) 9400 return PTR_ERR(conn_state); 9401 9402 crtc = conn_state->crtc; 9403 9404 if (!crtc) 9405 continue; 9406 9407 if (!drm_dp_mst_dsc_aux_for_port(pos->port)) 9408 continue; 9409 9410 crtc_state = drm_atomic_get_crtc_state(mst_state->base.state, crtc); 9411 9412 if (IS_ERR(crtc_state)) 9413 return PTR_ERR(crtc_state); 9414 9415 DRM_DEBUG_ATOMIC("[MST MGR:%p] Setting mode_changed flag on CRTC %p\n", 9416 mgr, crtc); 9417 9418 crtc_state->mode_changed = true; 9419 } 9420 return 0; 9421 } 9422

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