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BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: dri-devel@lists.freedesktop.org TO: Maxime Ripard CC: Leo Li CC: Thomas Zimmermann tree: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next head: 2d5a8313d9cf989b8f53a5689a96e891bf99fb2c commit: efb3523ce260fbb7b89c870bc2c31c384ec98a9e [32/48] drm/amdgpu: dm: Convert to atomic_create_state :::::: branch date: 9 hours ago :::::: commit date: 2 days ago config: loongarch-randconfig-2200-20261106 (https://download.01.org/0day-ci/archive/20261107/202611070550.m6aIjVTi-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 0fa861dbbf46e5a75f621406fd91cb015d8754bf) smatch: v0.5.0-9187-g5189e3fb 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202611070550.m6aIjVTi-lkp@intel.com/ smatch warnings: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_connector.c:3322 amdgpu_dm_connector_init_helper() error: we previously assumed 'aconnector->base.state' could be null (see line 3230) vim +3322 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_connector.c 0e967e086e7519 Alex Hung 2026-04-27 3217 0e967e086e7519 Alex Hung 2026-04-27 3218 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm, 0e967e086e7519 Alex Hung 2026-04-27 3219 struct amdgpu_dm_connector *aconnector, 0e967e086e7519 Alex Hung 2026-04-27 3220 int connector_type, 0e967e086e7519 Alex Hung 2026-04-27 3221 struct dc_link *link, 0e967e086e7519 Alex Hung 2026-04-27 3222 int link_index) 0e967e086e7519 Alex Hung 2026-04-27 3223 { 0e967e086e7519 Alex Hung 2026-04-27 3224 struct amdgpu_device *adev = drm_to_adev(dm->ddev); 0e967e086e7519 Alex Hung 2026-04-27 3225 0e967e086e7519 Alex Hung 2026-04-27 3226 /* 0e967e086e7519 Alex Hung 2026-04-27 3227 * Some of the properties below require access to state, like bpc. 0e967e086e7519 Alex Hung 2026-04-27 3228 * Allocate some default initial connector state with our reset helper. 0e967e086e7519 Alex Hung 2026-04-27 3229 */ efb3523ce260fb Maxime Ripard 2026-10-30 @3230 if (!aconnector->base.state && efb3523ce260fb Maxime Ripard 2026-10-30 3231 aconnector->base.funcs->atomic_create_state) { efb3523ce260fb Maxime Ripard 2026-10-30 3232 struct drm_connector_state *conn_state; efb3523ce260fb Maxime Ripard 2026-10-30 3233 efb3523ce260fb Maxime Ripard 2026-10-30 3234 conn_state = aconnector->base.funcs->atomic_create_state(&aconnector->base); efb3523ce260fb Maxime Ripard 2026-10-30 3235 if (IS_ERR(conn_state)) efb3523ce260fb Maxime Ripard 2026-10-30 3236 return; efb3523ce260fb Maxime Ripard 2026-10-30 3237 efb3523ce260fb Maxime Ripard 2026-10-30 3238 aconnector->base.state = conn_state; efb3523ce260fb Maxime Ripard 2026-10-30 3239 } 0e967e086e7519 Alex Hung 2026-04-27 3240 0e967e086e7519 Alex Hung 2026-04-27 3241 aconnector->connector_id = link_index; 0e967e086e7519 Alex Hung 2026-04-27 3242 aconnector->bl_idx = -1; 0e967e086e7519 Alex Hung 2026-04-27 3243 aconnector->dc_link = link; 0e967e086e7519 Alex Hung 2026-04-27 3244 aconnector->base.interlace_allowed = false; 0e967e086e7519 Alex Hung 2026-04-27 3245 aconnector->base.doublescan_allowed = false; 0e967e086e7519 Alex Hung 2026-04-27 3246 aconnector->base.stereo_allowed = false; 0e967e086e7519 Alex Hung 2026-04-27 3247 aconnector->base.dpms = DRM_MODE_DPMS_OFF; 0e967e086e7519 Alex Hung 2026-04-27 3248 aconnector->hpd.hpd = AMDGPU_HPD_NONE; /* not used */ 0e967e086e7519 Alex Hung 2026-04-27 3249 aconnector->audio_inst = -1; 0e967e086e7519 Alex Hung 2026-04-27 3250 aconnector->pack_sdp_v1_3 = false; 0e967e086e7519 Alex Hung 2026-04-27 3251 aconnector->as_type = ADAPTIVE_SYNC_TYPE_NONE; 0e967e086e7519 Alex Hung 2026-04-27 3252 memset(&aconnector->vsdb_info, 0, sizeof(aconnector->vsdb_info)); 0e967e086e7519 Alex Hung 2026-04-27 3253 mutex_init(&aconnector->hpd_lock); 0e967e086e7519 Alex Hung 2026-04-27 3254 mutex_init(&aconnector->handle_mst_msg_ready); 0e967e086e7519 Alex Hung 2026-04-27 3255 0e967e086e7519 Alex Hung 2026-04-27 3256 /* 0e967e086e7519 Alex Hung 2026-04-27 3257 * If HDMI HPD debounce delay is set, use the minimum between selected 0e967e086e7519 Alex Hung 2026-04-27 3258 * value and AMDGPU_DM_MAX_HDMI_HPD_DEBOUNCE_MS 0e967e086e7519 Alex Hung 2026-04-27 3259 */ 0e967e086e7519 Alex Hung 2026-04-27 3260 if (amdgpu_hdmi_hpd_debounce_delay_ms) { 0e967e086e7519 Alex Hung 2026-04-27 3261 aconnector->hdmi_hpd_debounce_delay_ms = min(amdgpu_hdmi_hpd_debounce_delay_ms, 0e967e086e7519 Alex Hung 2026-04-27 3262 AMDGPU_DM_MAX_HDMI_HPD_DEBOUNCE_MS); 0e967e086e7519 Alex Hung 2026-04-27 3263 INIT_DELAYED_WORK(&aconnector->hdmi_hpd_debounce_work, amdgpu_dm_hdmi_hpd_debounce_work); 0e967e086e7519 Alex Hung 2026-04-27 3264 aconnector->hdmi_prev_sink = NULL; 0e967e086e7519 Alex Hung 2026-04-27 3265 } else { 0e967e086e7519 Alex Hung 2026-04-27 3266 aconnector->hdmi_hpd_debounce_delay_ms = 0; 0e967e086e7519 Alex Hung 2026-04-27 3267 } 0e967e086e7519 Alex Hung 2026-04-27 3268 0e967e086e7519 Alex Hung 2026-04-27 3269 dm->hdmi_frl_status_polling_delay_ms = 200; 0e967e086e7519 Alex Hung 2026-04-27 3270 INIT_DELAYED_WORK(&dm->hdmi_frl_status_polling_work, hdmi_frl_status_polling_work); 0e967e086e7519 Alex Hung 2026-04-27 3271 /* 0e967e086e7519 Alex Hung 2026-04-27 3272 * configure support HPD hot plug connector_>polled default value is 0 0e967e086e7519 Alex Hung 2026-04-27 3273 * which means HPD hot plug not supported 0e967e086e7519 Alex Hung 2026-04-27 3274 */ 0e967e086e7519 Alex Hung 2026-04-27 3275 switch (connector_type) { 0e967e086e7519 Alex Hung 2026-04-27 3276 case DRM_MODE_CONNECTOR_HDMIA: 0e967e086e7519 Alex Hung 2026-04-27 3277 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 0e967e086e7519 Alex Hung 2026-04-27 3278 aconnector->base.ycbcr_420_allowed = 0e967e086e7519 Alex Hung 2026-04-27 3279 link->link_enc->features.hdmi_ycbcr420_supported ? true : false; 0e967e086e7519 Alex Hung 2026-04-27 3280 break; 0e967e086e7519 Alex Hung 2026-04-27 3281 case DRM_MODE_CONNECTOR_DisplayPort: 0e967e086e7519 Alex Hung 2026-04-27 3282 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 0e967e086e7519 Alex Hung 2026-04-27 3283 link->link_enc = link_enc_cfg_get_link_enc(link); 0e967e086e7519 Alex Hung 2026-04-27 3284 ASSERT(link->link_enc); 0e967e086e7519 Alex Hung 2026-04-27 3285 if (link->link_enc) 0e967e086e7519 Alex Hung 2026-04-27 3286 aconnector->base.ycbcr_420_allowed = 0e967e086e7519 Alex Hung 2026-04-27 3287 link->link_enc->features.dp_ycbcr420_supported ? true : false; 0e967e086e7519 Alex Hung 2026-04-27 3288 break; 0e967e086e7519 Alex Hung 2026-04-27 3289 case DRM_MODE_CONNECTOR_DVID: 0e967e086e7519 Alex Hung 2026-04-27 3290 aconnector->base.polled = DRM_CONNECTOR_POLL_HPD; 0e967e086e7519 Alex Hung 2026-04-27 3291 break; 0e967e086e7519 Alex Hung 2026-04-27 3292 case DRM_MODE_CONNECTOR_DVII: 0e967e086e7519 Alex Hung 2026-04-27 3293 case DRM_MODE_CONNECTOR_VGA: 0e967e086e7519 Alex Hung 2026-04-27 3294 aconnector->base.polled = 0e967e086e7519 Alex Hung 2026-04-27 3295 DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT; 0e967e086e7519 Alex Hung 2026-04-27 3296 break; 0e967e086e7519 Alex Hung 2026-04-27 3297 default: 0e967e086e7519 Alex Hung 2026-04-27 3298 break; 0e967e086e7519 Alex Hung 2026-04-27 3299 } 0e967e086e7519 Alex Hung 2026-04-27 3300 0e967e086e7519 Alex Hung 2026-04-27 3301 drm_object_attach_property(&aconnector->base.base, 0e967e086e7519 Alex Hung 2026-04-27 3302 dm->ddev->mode_config.scaling_mode_property, 0e967e086e7519 Alex Hung 2026-04-27 3303 DRM_MODE_SCALE_NONE); 0e967e086e7519 Alex Hung 2026-04-27 3304 0e967e086e7519 Alex Hung 2026-04-27 3305 if (connector_type == DRM_MODE_CONNECTOR_HDMIA 0e967e086e7519 Alex Hung 2026-04-27 3306 || (connector_type == DRM_MODE_CONNECTOR_DisplayPort && !aconnector->mst_root)) 0e967e086e7519 Alex Hung 2026-04-27 3307 drm_connector_attach_broadcast_rgb_property(&aconnector->base); 0e967e086e7519 Alex Hung 2026-04-27 3308 0e967e086e7519 Alex Hung 2026-04-27 3309 drm_object_attach_property(&aconnector->base.base, 0e967e086e7519 Alex Hung 2026-04-27 3310 adev->mode_info.underscan_property, 0e967e086e7519 Alex Hung 2026-04-27 3311 UNDERSCAN_OFF); 0e967e086e7519 Alex Hung 2026-04-27 3312 drm_object_attach_property(&aconnector->base.base, 0e967e086e7519 Alex Hung 2026-04-27 3313 adev->mode_info.underscan_hborder_property, 0e967e086e7519 Alex Hung 2026-04-27 3314 0); 0e967e086e7519 Alex Hung 2026-04-27 3315 drm_object_attach_property(&aconnector->base.base, 0e967e086e7519 Alex Hung 2026-04-27 3316 adev->mode_info.underscan_vborder_property, 0e967e086e7519 Alex Hung 2026-04-27 3317 0); 0e967e086e7519 Alex Hung 2026-04-27 3318 0e967e086e7519 Alex Hung 2026-04-27 3319 if (!aconnector->mst_root) 0e967e086e7519 Alex Hung 2026-04-27 3320 drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16); 0e967e086e7519 Alex Hung 2026-04-27 3321 0e967e086e7519 Alex Hung 2026-04-27 @3322 aconnector->base.state->max_bpc = 16; 0e967e086e7519 Alex Hung 2026-04-27 3323 aconnector->base.state->max_requested_bpc = aconnector->base.state->max_bpc; 0e967e086e7519 Alex Hung 2026-04-27 3324 0e967e086e7519 Alex Hung 2026-04-27 3325 if (connector_type == DRM_MODE_CONNECTOR_HDMIA) { 0e967e086e7519 Alex Hung 2026-04-27 3326 /* Content Type is currently only implemented for HDMI. */ 0e967e086e7519 Alex Hung 2026-04-27 3327 drm_connector_attach_content_type_property(&aconnector->base); 0e967e086e7519 Alex Hung 2026-04-27 3328 } 0e967e086e7519 Alex Hung 2026-04-27 3329 0e967e086e7519 Alex Hung 2026-04-27 3330 if (connector_type == DRM_MODE_CONNECTOR_HDMIA) { 0e967e086e7519 Alex Hung 2026-04-27 3331 if (!drm_mode_create_hdmi_colorspace_property(&aconnector->base, supported_colorspaces)) 0e967e086e7519 Alex Hung 2026-04-27 3332 drm_connector_attach_colorspace_property(&aconnector->base); 0e967e086e7519 Alex Hung 2026-04-27 3333 } else if ((connector_type == DRM_MODE_CONNECTOR_DisplayPort && !aconnector->mst_root) || 0e967e086e7519 Alex Hung 2026-04-27 3334 connector_type == DRM_MODE_CONNECTOR_eDP) { 0e967e086e7519 Alex Hung 2026-04-27 3335 if (!drm_mode_create_dp_colorspace_property(&aconnector->base, supported_colorspaces)) 0e967e086e7519 Alex Hung 2026-04-27 3336 drm_connector_attach_colorspace_property(&aconnector->base); 0e967e086e7519 Alex Hung 2026-04-27 3337 } 0e967e086e7519 Alex Hung 2026-04-27 3338 0e967e086e7519 Alex Hung 2026-04-27 3339 if (connector_type == DRM_MODE_CONNECTOR_HDMIA || 0e967e086e7519 Alex Hung 2026-04-27 3340 connector_type == DRM_MODE_CONNECTOR_DisplayPort || 0e967e086e7519 Alex Hung 2026-04-27 3341 connector_type == DRM_MODE_CONNECTOR_eDP) { 0e967e086e7519 Alex Hung 2026-04-27 3342 drm_connector_attach_hdr_output_metadata_property(&aconnector->base); 0e967e086e7519 Alex Hung 2026-04-27 3343 0461ba9a7994a9 Dave Airlie 2026-07-07 3344 if (!aconnector->mst_root) { 0e967e086e7519 Alex Hung 2026-04-27 3345 drm_connector_attach_vrr_capable_property(&aconnector->base); 0461ba9a7994a9 Dave Airlie 2026-07-07 3346 drm_connector_attach_color_format_property(&aconnector->base, 0461ba9a7994a9 Dave Airlie 2026-07-07 3347 supported_colorformats); 0461ba9a7994a9 Dave Airlie 2026-07-07 3348 } 0e967e086e7519 Alex Hung 2026-04-27 3349 0e967e086e7519 Alex Hung 2026-04-27 3350 0e967e086e7519 Alex Hung 2026-04-27 3351 if (adev->dm.hdcp_workqueue) 0e967e086e7519 Alex Hung 2026-04-27 3352 drm_connector_attach_content_protection_property(&aconnector->base, true); 0e967e086e7519 Alex Hung 2026-04-27 3353 } 0e967e086e7519 Alex Hung 2026-04-27 3354 0e967e086e7519 Alex Hung 2026-04-27 3355 if (connector_type == DRM_MODE_CONNECTOR_eDP) { 0e967e086e7519 Alex Hung 2026-04-27 3356 struct drm_privacy_screen *privacy_screen; 0e967e086e7519 Alex Hung 2026-04-27 3357 0e967e086e7519 Alex Hung 2026-04-27 3358 drm_connector_attach_panel_type_property(&aconnector->base); 0e967e086e7519 Alex Hung 2026-04-27 3359 0e967e086e7519 Alex Hung 2026-04-27 3360 privacy_screen = drm_privacy_screen_get(adev_to_drm(adev)->dev, NULL); 0e967e086e7519 Alex Hung 2026-04-27 3361 if (!IS_ERR(privacy_screen)) { 0e967e086e7519 Alex Hung 2026-04-27 3362 drm_connector_attach_privacy_screen_provider(&aconnector->base, 0e967e086e7519 Alex Hung 2026-04-27 3363 privacy_screen); 0e967e086e7519 Alex Hung 2026-04-27 3364 } else if (PTR_ERR(privacy_screen) != -ENODEV) { 0e967e086e7519 Alex Hung 2026-04-27 3365 drm_warn(adev_to_drm(adev), "Error getting privacy-screen\n"); 0e967e086e7519 Alex Hung 2026-04-27 3366 } 0e967e086e7519 Alex Hung 2026-04-27 3367 } 0e967e086e7519 Alex Hung 2026-04-27 3368 } 94be315afbd42b Alex Hung 2026-08-29 3369 EXPORT_IF_KUNIT(amdgpu_dm_connector_init_helper); 0e967e086e7519 Alex Hung 2026-04-27 3370 :::::: The code at line 3322 was first introduced by commit :::::: 0e967e086e7519966816b76a6309b4516d365aa5 drm/amd/display: Extract connector and encoder code to amdgpu_dm_connector :::::: TO: Alex Hung :::::: CC: Alex Deucher -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki