tree: git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next head: 5d8e75c019bf76889bd606a67afabf7d0b32d3fa commit: 5a0a709652ceaca0a36ef2d0954b8d9d3f690560 [63/158] drm/amd/dc: Add dc display driver config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/ma... -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 5a0a709652ceaca0a36ef2d0954b8d9d3f690560 # save the attached .config to linux build tree make.cross ARCH=alpha

All warnings (new ones prefixed by >>):

In file included from include/linux/agp_backend.h:33:0, from include/drm/drmP.h:35, from drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:29: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c: In function 'create_target_for_sink': include/linux/list.h:385:29: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] struct list_head *head__ = (ptr); \ ^

...

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:954:20: note: in expansion of macro 'list_first_entry_or_null'

preferred_mode = list_first_entry_or_null( ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c: In function 'amdgpu_atomic_helper_page_flip': drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1102:2: error: implicit declaration of function 'drm_atomic_state_free' [-Werror=implicit-function-declaration] drm_atomic_state_free(state); ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c: At top level: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1125:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .gamma_set = amdgpu_dm_atomic_crtc_gamma_set, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1125:15: note: (near initialization for 'amdgpu_dm_crtc_funcs.gamma_set') drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1775:16: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .prepare_fb = dm_plane_helper_prepare_fb, ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1775:16: note: (near initialization for 'dm_plane_helper_funcs.prepare_fb') drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1776:16: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types] .cleanup_fb = dm_plane_helper_cleanup_fb, ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:1776:16: note: (near initialization for 'dm_plane_helper_funcs.cleanup_fb') drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c: In function 'amdgpu_dm_atomic_commit': drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:2492:31: error: passing argument 1 of 'drm_atomic_helper_swap_state' from incompatible pointer type [-Werror=incompatible-pointer-types] drm_atomic_helper_swap_state(dev, state); ^~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:30:0: include/drm/drm_atomic_helper.h:83:6: note: expected 'struct drm_atomic_state *' but argument is of type 'struct drm_device *' void drm_atomic_helper_swap_state(struct drm_atomic_state *state, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c:2750:10: error: implicit declaration of function 'amdgpu_crtc_page_flip' [-Werror=implicit-function-declaration] ret = amdgpu_crtc_page_flip(crtc, ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors

vim +/list_first_entry_or_null +954 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_types.c

938 drm_connector = &aconnector->base; 939 stream = dc_create_stream_for_sink(aconnector->dc_sink); 940 941 if (NULL == stream) { 942 DRM_ERROR("Failed to create stream for sink!\n"); 943 goto stream_create_fail; 944 } 945 946 list_for_each_entry(preferred_mode, &aconnector->base.modes, head) { 947 /* Search for preferred mode */ 948 if (preferred_mode->type & DRM_MODE_TYPE_PREFERRED) { 949 native_mode_found = true; 950 break; 951 } 952 } 953 if (!native_mode_found)

954 preferred_mode = list_first_entry_or_null(

955 &aconnector->base.modes, 956 struct drm_display_mode, 957 head); 958 959 if (NULL == preferred_mode) { 960 /* This may not be an error, the use case is when we we have no 961 * usermode calls to reset and set mode upon hotplug. In this 962 * case, we call set mode ourselves to restore the previous mode

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