drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amd gpu_dm_wb_test.c:363:44: error: 'struct drm_writeback_connector' has no member named 'encoder'

kernel test robot <[email protected]>
Newsgroups dev.linux.lists.oe-kbuild
Message-ID <[email protected]> 
:::::: 
:::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/John-Harrison/drm-managed-implement-managed-versions-of-kzalloc_obj-objs/20260807-033852, commit: 8f32f6ce121579639f52d30cd5ec2dafee5c9189"
:::::: 

BCC: [email protected]
CC: [email protected]
TO: Dmitry Baryshkov <[email protected]>
CC: 0day robot <[email protected]>
CC: Suraj Kandpal <[email protected]>
CC: Louis Chauvet <[email protected]>

tree:   https://github.com/intel-lab-lkp/linux/commits/John-Harrison/drm-managed-implement-managed-versions-of-kzalloc_obj-objs/20260807-033852
head:   260c8b52af1b6d6dd5da419fcfc9a2b5bc3eed95
commit: 8f32f6ce121579639f52d30cd5ec2dafee5c9189 drm: writeback: drop excess connector initialization functions
date:   23 hours ago
:::::: branch date: 23 hours ago
:::::: commit date: 23 hours ago
config: csky-allmodconfig (https://download.01.org/0day-ci/archive/20260808/[email protected]/config)
compiler: csky-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260808/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/r/[email protected]/

All errors (new ones prefixed by >>):

   In file included from include/linux/err.h:5,
                    from include/kunit/assert.h:12,
                    from include/kunit/test.h:12,
                    from drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:8:
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c: In function 'dm_test_wb_connector_init_success':
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:363:44: error: 'struct drm_writeback_connector' has no member named 'encoder'
     363 |         KUNIT_EXPECT_TRUE(test, wbcon->base.encoder.funcs != NULL);
         |                                            ^
   include/linux/compiler.h:76:45: note: in definition of macro 'likely'
      76 | # define likely(x)      __builtin_expect(!!(x), 1)
         |                                             ^
   include/kunit/test.h:801:9: note: in expansion of macro 'KUNIT_UNARY_ASSERTION'
     801 |         KUNIT_UNARY_ASSERTION(test,                                            \
         |         ^~~~~~~~~~~~~~~~~~~~~
   include/kunit/test.h:997:9: note: in expansion of macro 'KUNIT_TRUE_MSG_ASSERTION'
     997 |         KUNIT_TRUE_MSG_ASSERTION(test,                                         \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~
   include/kunit/test.h:994:9: note: in expansion of macro 'KUNIT_EXPECT_TRUE_MSG'
     994 |         KUNIT_EXPECT_TRUE_MSG(test, condition, NULL)
         |         ^~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:363:9: note: in expansion of macro 'KUNIT_EXPECT_TRUE'
     363 |         KUNIT_EXPECT_TRUE(test, wbcon->base.encoder.funcs != NULL);
         |         ^~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:364:42: error: 'struct drm_writeback_connector' has no member named 'encoder'
     364 |         KUNIT_EXPECT_EQ(test, wbcon->base.encoder.possible_crtcs, 0x1);
         |                                          ^
   include/kunit/test.h:840:22: note: in definition of macro 'KUNIT_BASE_BINARY_ASSERTION'
     840 |         const typeof(left) __left = (left);                                    \
         |                      ^~~~
   include/kunit/test.h:1037:9: note: in expansion of macro 'KUNIT_BINARY_INT_ASSERTION'
    1037 |         KUNIT_BINARY_INT_ASSERTION(test,                                       \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
   include/kunit/test.h:1034:9: note: in expansion of macro 'KUNIT_EXPECT_EQ_MSG'
    1034 |         KUNIT_EXPECT_EQ_MSG(test, left, right, NULL)
         |         ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:364:9: note: in expansion of macro 'KUNIT_EXPECT_EQ'
     364 |         KUNIT_EXPECT_EQ(test, wbcon->base.encoder.possible_crtcs, 0x1);
         |         ^~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:364:42: error: 'struct drm_writeback_connector' has no member named 'encoder'
     364 |         KUNIT_EXPECT_EQ(test, wbcon->base.encoder.possible_crtcs, 0x1);
         |                                          ^
   include/kunit/test.h:840:38: note: in definition of macro 'KUNIT_BASE_BINARY_ASSERTION'
     840 |         const typeof(left) __left = (left);                                    \
         |                                      ^~~~
   include/kunit/test.h:1037:9: note: in expansion of macro 'KUNIT_BINARY_INT_ASSERTION'
    1037 |         KUNIT_BINARY_INT_ASSERTION(test,                                       \
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
   include/kunit/test.h:1034:9: note: in expansion of macro 'KUNIT_EXPECT_EQ_MSG'
    1034 |         KUNIT_EXPECT_EQ_MSG(test, left, right, NULL)
         |         ^~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c:364:9: note: in expansion of macro 'KUNIT_EXPECT_EQ'
     364 |         KUNIT_EXPECT_EQ(test, wbcon->base.encoder.possible_crtcs, 0x1);
         |         ^~~~~~~~~~~~~~~


vim +363 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/tests/amdgpu_dm_wb_test.c

682710244fa3176 Alex Hung 2026-06-15  320  
682710244fa3176 Alex Hung 2026-06-15  321  /**
682710244fa3176 Alex Hung 2026-06-15  322   * dm_test_wb_connector_init_success - Verify writeback connector initialization
682710244fa3176 Alex Hung 2026-06-15  323   * @test: KUnit test context
682710244fa3176 Alex Hung 2026-06-15  324   *
682710244fa3176 Alex Hung 2026-06-15  325   * Uses a DRM mock device embedded in struct amdgpu_device to verify that
682710244fa3176 Alex Hung 2026-06-15  326   * amdgpu_dm_wb_connector_init() initializes the writeback connector, stores
682710244fa3176 Alex Hung 2026-06-15  327   * the DC link, installs connector state through reset, and wires the expected
682710244fa3176 Alex Hung 2026-06-15  328   * DRM callbacks.
682710244fa3176 Alex Hung 2026-06-15  329   */
682710244fa3176 Alex Hung 2026-06-15  330  static void dm_test_wb_connector_init_success(struct kunit *test)
682710244fa3176 Alex Hung 2026-06-15  331  {
682710244fa3176 Alex Hung 2026-06-15  332  	struct amdgpu_dm_wb_connector *wbcon;
682710244fa3176 Alex Hung 2026-06-15  333  	struct amdgpu_display_manager *dm;
682710244fa3176 Alex Hung 2026-06-15  334  	struct amdgpu_device *adev;
682710244fa3176 Alex Hung 2026-06-15  335  	struct dc_link *link;
682710244fa3176 Alex Hung 2026-06-15  336  	struct dc *dc;
682710244fa3176 Alex Hung 2026-06-15  337  	int ret;
682710244fa3176 Alex Hung 2026-06-15  338  
a532f8d7e4c96a3 Alex Hung 2026-06-18  339  	adev = dm_kunit_alloc_adev(test);
682710244fa3176 Alex Hung 2026-06-15  340  	adev->mode_info.num_crtc = 1;
682710244fa3176 Alex Hung 2026-06-15  341  	dm = &adev->dm;
682710244fa3176 Alex Hung 2026-06-15  342  	dm->adev = adev;
682710244fa3176 Alex Hung 2026-06-15  343  
682710244fa3176 Alex Hung 2026-06-15  344  	dc = kunit_kzalloc(test, sizeof(*dc), GFP_KERNEL);
682710244fa3176 Alex Hung 2026-06-15  345  	KUNIT_ASSERT_NOT_NULL(test, dc);
682710244fa3176 Alex Hung 2026-06-15  346  
682710244fa3176 Alex Hung 2026-06-15  347  	link = kunit_kzalloc(test, sizeof(*link), GFP_KERNEL);
682710244fa3176 Alex Hung 2026-06-15  348  	KUNIT_ASSERT_NOT_NULL(test, link);
682710244fa3176 Alex Hung 2026-06-15  349  
682710244fa3176 Alex Hung 2026-06-15  350  	dc->links[0] = link;
682710244fa3176 Alex Hung 2026-06-15  351  	dm->dc = dc;
682710244fa3176 Alex Hung 2026-06-15  352  
682710244fa3176 Alex Hung 2026-06-15  353  	wbcon = kunit_kzalloc(test, sizeof(*wbcon), GFP_KERNEL);
682710244fa3176 Alex Hung 2026-06-15  354  	KUNIT_ASSERT_NOT_NULL(test, wbcon);
682710244fa3176 Alex Hung 2026-06-15  355  
682710244fa3176 Alex Hung 2026-06-15  356  	ret = amdgpu_dm_wb_connector_init(dm, wbcon, 0);
682710244fa3176 Alex Hung 2026-06-15  357  
682710244fa3176 Alex Hung 2026-06-15  358  	KUNIT_EXPECT_EQ(test, ret, 0);
682710244fa3176 Alex Hung 2026-06-15  359  	KUNIT_EXPECT_PTR_EQ(test, wbcon->link, link);
682710244fa3176 Alex Hung 2026-06-15  360  	KUNIT_EXPECT_TRUE(test, wbcon->base.base.funcs != NULL);
682710244fa3176 Alex Hung 2026-06-15  361  	KUNIT_EXPECT_TRUE(test, wbcon->base.base.helper_private != NULL);
682710244fa3176 Alex Hung 2026-06-15  362  	KUNIT_EXPECT_TRUE(test, wbcon->base.base.state != NULL);
682710244fa3176 Alex Hung 2026-06-15 @363  	KUNIT_EXPECT_TRUE(test, wbcon->base.encoder.funcs != NULL);
682710244fa3176 Alex Hung 2026-06-15  364  	KUNIT_EXPECT_EQ(test, wbcon->base.encoder.possible_crtcs, 0x1);
682710244fa3176 Alex Hung 2026-06-15  365  }
682710244fa3176 Alex Hung 2026-06-15  366  

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