Hi,
[auto build test WARNING on drm/drm-next] [also build test WARNING on v4.7-rc2 next-20160606] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Mika-Kahola/drm-i915-DP-branch-devi... base: git://people.freedesktop.org/~airlied/linux.git drm-next reproduce: make htmldocs
All warnings (new ones prefixed by >>):
drivers/gpu/drm/i915/i915_irq.c:606: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:606: warning: Excess function parameter 'dev' description in 'i915_enable_asle_pipestat' drivers/gpu/drm/i915/i915_irq.c:2538: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2538: warning: Excess function parameter 'dev' description in 'i915_reset_and_wakeup' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'fmt' drivers/gpu/drm/i915/i915_irq.c:2700: warning: Excess function parameter 'dev' description in 'i915_handle_error' include/drm/drm_crtc.h:374: warning: No description found for parameter 'mode_blob' include/drm/drm_crtc.h:789: warning: No description found for parameter 'name' include/drm/drm_crtc.h:1248: warning: No description found for parameter 'connector_id' include/drm/drm_crtc.h:1248: warning: No description found for parameter 'tile_blob_ptr' include/drm/drm_crtc.h:1287: warning: No description found for parameter 'rotation' include/drm/drm_crtc.h:1549: warning: No description found for parameter 'name' include/drm/drm_crtc.h:1549: warning: No description found for parameter 'mutex' include/drm/drm_crtc.h:1549: warning: No description found for parameter 'helper_private' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tile_idr' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'connector_ida' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'delayed_event' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'edid_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'dpms_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'path_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tile_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'plane_type_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'rotation_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_src_x' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_src_y' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_src_w' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_src_h' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_crtc_x' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_crtc_y' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_crtc_w' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_crtc_h' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_fb_id' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_crtc_id' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_active' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'prop_mode_id' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'dvi_i_subconnector_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'dvi_i_select_subconnector_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_subconnector_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_select_subconnector_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_mode_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_left_margin_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_right_margin_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_top_margin_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_bottom_margin_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_brightness_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_contrast_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_flicker_reduction_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_overscan_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_saturation_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'tv_hue_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'scaling_mode_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'aspect_ratio_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'dirty_info_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'suggested_x_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'suggested_y_property' include/drm/drm_crtc.h:2185: warning: No description found for parameter 'allow_fb_modifiers' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: No description found for parameter 'nonblock' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: Excess function parameter 'nonblocking' description in 'drm_atomic_helper_commit' drivers/gpu/drm/drm_atomic_helper.c:2946: warning: No description found for parameter 'start' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: No description found for parameter 'nonblock' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: Excess function parameter 'nonblocking' description in 'drm_atomic_helper_commit' drivers/gpu/drm/drm_atomic_helper.c:2946: warning: No description found for parameter 'start' drivers/gpu/drm/drm_atomic_helper.c:1: warning: no structured comments found Was looking for 'implementing async commit'. drivers/gpu/drm/drm_atomic_helper.c:1150: warning: No description found for parameter 'nonblock' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: Excess function parameter 'nonblocking' description in 'drm_atomic_helper_commit' drivers/gpu/drm/drm_atomic_helper.c:2946: warning: No description found for parameter 'start' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: No description found for parameter 'nonblock' drivers/gpu/drm/drm_atomic_helper.c:1150: warning: Excess function parameter 'nonblocking' description in 'drm_atomic_helper_commit' drivers/gpu/drm/drm_atomic_helper.c:2946: warning: No description found for parameter 'start' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'dev' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'file_priv' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'mode_cmd' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'funcs' drivers/gpu/drm/drm_fb_cma_helper.c:233: warning: No description found for parameter 'dev' drivers/gpu/drm/drm_fb_cma_helper.c:233: warning: No description found for parameter 'file_priv' drivers/gpu/drm/drm_fb_cma_helper.c:233: warning: No description found for parameter 'mode_cmd' drivers/gpu/drm/drm_fb_cma_helper.c:285: warning: No description found for parameter 'm' drivers/gpu/drm/drm_fb_cma_helper.c:285: warning: No description found for parameter 'arg' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'dev' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'file_priv' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'mode_cmd' drivers/gpu/drm/drm_fb_cma_helper.c:173: warning: No description found for parameter 'funcs' drivers/gpu/drm/drm_fb_cma_helper.c:233: warning: No description found for parameter 'dev' drivers/gpu/drm/drm_fb_cma_helper.c:233: warning: No description found for parameter 'file_priv' drivers/gpu/drm/drm_fb_cma_helper.c:233: warning: No description found for parameter 'mode_cmd' drivers/gpu/drm/drm_fb_cma_helper.c:285: warning: No description found for parameter 'm' drivers/gpu/drm/drm_fb_cma_helper.c:285: warning: No description found for parameter 'arg' drivers/gpu/drm/drm_dp_helper.c:451: warning: No description found for parameter 'aux'
drivers/gpu/drm/drm_dp_helper.c:548: warning: No description found for parameter 'id[6]'
include/drm/drm_dp_helper.h:754: warning: No description found for parameter 'i2c_nack_count' include/drm/drm_dp_helper.h:754: warning: No description found for parameter 'i2c_defer_count' drivers/gpu/drm/drm_dp_helper.c:451: warning: No description found for parameter 'aux'
drivers/gpu/drm/drm_dp_helper.c:548: warning: No description found for parameter 'id[6]'
drivers/gpu/drm/drm_dp_mst_topology.c:2383: warning: No description found for parameter 'connector' include/drm/drm_dp_mst_helper.h:92: warning: No description found for parameter 'cached_edid' include/drm/drm_dp_mst_helper.h:92: warning: No description found for parameter 'has_audio' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'max_dpcd_transaction_bytes' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'sink_count' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'total_slots' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'avail_slots' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'total_pbn' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'qlock' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'tx_msg_downq' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'tx_down_in_progress' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'payload_lock' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'proposed_vcpis' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'payloads' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'payload_mask' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'vcpi_mask' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'tx_waitq' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'work' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'tx_work' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'destroy_connector_list' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'destroy_connector_lock' include/drm/drm_dp_mst_helper.h:466: warning: No description found for parameter 'destroy_connector_work' drivers/gpu/drm/drm_dp_mst_topology.c:2383: warning: No description found for parameter 'connector' drivers/gpu/drm/drm_irq.c:158: warning: No description found for parameter 'flags' include/drm/drmP.h:169: warning: No description found for parameter 'fmt' include/drm/drmP.h:185: warning: No description found for parameter 'fmt' include/drm/drmP.h:203: warning: No description found for parameter 'fmt' include/drm/drmP.h:248: warning: No description found for parameter 'dev' include/drm/drmP.h:248: warning: No description found for parameter 'data' include/drm/drmP.h:248: warning: No description found for parameter 'file_priv' include/drm/drmP.h:281: warning: No description found for parameter 'ioctl' include/drm/drmP.h:281: warning: No description found for parameter '_func' include/drm/drmP.h:281: warning: No description found for parameter '_flags' include/drm/drmP.h:363: warning: cannot understand function prototype: 'struct drm_lock_data ' include/drm/drmP.h:411: warning: cannot understand function prototype: 'struct drm_driver ' include/drm/drmP.h:677: warning: cannot understand function prototype: 'struct drm_info_list ' include/drm/drmP.h:687: warning: cannot understand function prototype: 'struct drm_info_node ' include/drm/drmP.h:697: warning: cannot understand function prototype: 'struct drm_minor ' include/drm/drmP.h:745: warning: cannot understand function prototype: 'struct drm_device ' drivers/gpu/drm/i915/intel_runtime_pm.c:2416: warning: No description found for parameter 'resume' drivers/gpu/drm/i915/intel_runtime_pm.c:2416: warning: No description found for parameter 'resume' drivers/gpu/drm/i915/i915_irq.c:606: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:606: warning: Excess function parameter 'dev' description in 'i915_enable_asle_pipestat' drivers/gpu/drm/i915/i915_irq.c:2538: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2538: warning: Excess function parameter 'dev' description in 'i915_reset_and_wakeup' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'fmt' drivers/gpu/drm/i915/i915_irq.c:2700: warning: Excess function parameter 'dev' description in 'i915_handle_error' drivers/gpu/drm/i915/i915_irq.c:606: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:606: warning: Excess function parameter 'dev' description in 'i915_enable_asle_pipestat' drivers/gpu/drm/i915/i915_irq.c:2538: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2538: warning: Excess function parameter 'dev' description in 'i915_reset_and_wakeup' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'fmt' drivers/gpu/drm/i915/i915_irq.c:2700: warning: Excess function parameter 'dev' description in 'i915_handle_error' drivers/gpu/drm/i915/i915_irq.c:606: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:606: warning: Excess function parameter 'dev' description in 'i915_enable_asle_pipestat' drivers/gpu/drm/i915/i915_irq.c:2538: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2538: warning: Excess function parameter 'dev' description in 'i915_reset_and_wakeup' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'fmt' drivers/gpu/drm/i915/i915_irq.c:2700: warning: Excess function parameter 'dev' description in 'i915_handle_error' drivers/gpu/drm/i915/i915_irq.c:606: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:606: warning: Excess function parameter 'dev' description in 'i915_enable_asle_pipestat' drivers/gpu/drm/i915/i915_irq.c:2538: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2538: warning: Excess function parameter 'dev' description in 'i915_reset_and_wakeup' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_irq.c:2700: warning: No description found for parameter 'fmt' drivers/gpu/drm/i915/i915_irq.c:2700: warning: Excess function parameter 'dev' description in 'i915_handle_error' drivers/gpu/drm/i915/i915_vgpu.c:62: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_vgpu.c:62: warning: Excess function parameter 'dev' description in 'i915_check_vgpu' drivers/gpu/drm/i915/i915_vgpu.c:181: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_vgpu.c:181: warning: Excess function parameter 'dev_priv' description in 'intel_vgt_balloon' drivers/gpu/drm/i915/i915_vgpu.c:62: warning: No description found for parameter 'dev_priv' drivers/gpu/drm/i915/i915_vgpu.c:62: warning: Excess function parameter 'dev' description in 'i915_check_vgpu' drivers/gpu/drm/i915/i915_vgpu.c:181: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_vgpu.c:181: warning: Excess function parameter 'dev_priv' description in 'intel_vgt_balloon' drivers/gpu/drm/i915/i915_gem.c:416: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_gem.c:416: warning: No description found for parameter 'data' drivers/gpu/drm/i915/i915_gem.c:416: warning: No description found for parameter 'file' drivers/gpu/drm/i915/i915_gem.c:681: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_gem.c:681: warning: No description found for parameter 'data' drivers/gpu/drm/i915/i915_gem.c:681: warning: No description found for parameter 'file' drivers/gpu/drm/i915/i915_gem.c:762: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_gem.c:762: warning: No description found for parameter 'obj' drivers/gpu/drm/i915/i915_gem.c:762: warning: No description found for parameter 'args' drivers/gpu/drm/i915/i915_gem.c:762: warning: No description found for parameter 'file' drivers/gpu/drm/i915/i915_gem.c:1025: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_gem.c:1025: warning: No description found for parameter 'data' drivers/gpu/drm/i915/i915_gem.c:1025: warning: No description found for parameter 'file' drivers/gpu/drm/i915/i915_gem.c:1231: warning: No description found for parameter 'rps' drivers/gpu/drm/i915/i915_gem.c:1452: warning: No description found for parameter 'req' drivers/gpu/drm/i915/i915_gem.c:1479: warning: No description found for parameter 'obj' drivers/gpu/drm/i915/i915_gem.c:1479: warning: No description found for parameter 'readonly' drivers/gpu/drm/i915/i915_gem.c:1596: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_gem.c:1596: warning: No description found for parameter 'data' drivers/gpu/drm/i915/i915_gem.c:1596: warning: No description found for parameter 'file' drivers/gpu/drm/i915/i915_gem.c:1659: warning: No description found for parameter 'dev' drivers/gpu/drm/i915/i915_gem.c:1659: warning: No description found for parameter 'data' drivers/gpu/drm/i915/i915_gem.c:1659: warning: No description found for parameter 'file'
vim +548 drivers/gpu/drm/drm_dp_helper.c
445 * 446 * returns size of the port capabilites 447 */ 448 int drm_dp_downstream_port_cap(struct drm_dp_aux *aux, 449 const u8 dpcd[DP_RECEIVER_CAP_SIZE], 450 u8 port_cap[4])
451 {
452 int size; 453 bool detailed_cap_info = dpcd[DP_DOWNSTREAMPORT_PRESENT] & 454 DP_DETAILED_CAP_INFO_AVAILABLE; 455 456 if (detailed_cap_info) { 457 size = 4; 458 drm_dp_dpcd_read(aux, DP_DOWNSTREAM_PORT_0, port_cap, size); 459 } else { 460 size = 1; 461 drm_dp_dpcd_read(aux, DP_DOWNSTREAM_PORT_0, &port_cap[0], size); 462 } 463 464 return size; 465 } 466 EXPORT_SYMBOL(drm_dp_downstream_port_cap); 467 468 /** 469 * drm_dp_downstream_type() - extract downstream port type 470 * @dpcd: DisplayPort configuration data 471 * @port_cap: port capabilities 472 * 473 * Returns type in success or negative error code on failure 474 */ 475 int drm_dp_downstream_type(const u8 dpcd[DP_RECEIVER_CAP_SIZE], 476 const u8 port_cap[4]) 477 { 478 return port_cap[0] & DP_DS_PORT_TYPE_MASK; 479 } 480 EXPORT_SYMBOL(drm_dp_downstream_type); 481 482 /** 483 * drm_dp_downstream_max_clock() - extract branch device max 484 * pixel rate for legacy VGA 485 * converter or max TMDS clock 486 * rate for others 487 * @dpcd: DisplayPort configuration data 488 * @port_cap: port capabilities 489 * 490 * Returns max clock in kHz on success or negative error code on failure 491 */ 492 int drm_dp_downstream_max_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE], 493 const u8 port_cap[4]) 494 { 495 int type = drm_dp_downstream_type(dpcd, port_cap); 496 bool detailed_cap_info = dpcd[DP_DOWNSTREAMPORT_PRESENT] & 497 DP_DETAILED_CAP_INFO_AVAILABLE; 498 499 if (detailed_cap_info) { 500 if (type == DP_DS_PORT_TYPE_VGA) 501 return port_cap[1] * 8 * 1000; 502 else if (type != DP_DS_PORT_TYPE_WIRELESS) 503 return port_cap[1] * 2500; 504 } 505 506 return -EINVAL; 507 } 508 EXPORT_SYMBOL(drm_dp_downstream_max_clock); 509 510 /** 511 * drm_dp_downstream_max_bpc() - extract branch device max 512 * bits per component 513 * @dpcd: DisplayPort configuration data 514 * @port_cap: port capabilities 515 * 516 * Returns max bpc on success or negative error code on failure 517 */ 518 int drm_dp_downstream_max_bpc(const u8 dpcd[DP_RECEIVER_CAP_SIZE], 519 const u8 port_cap[4]) 520 { 521 int type = drm_dp_downstream_type(dpcd, port_cap); 522 bool detailed_cap_info = dpcd[DP_DOWNSTREAMPORT_PRESENT] & 523 DP_DETAILED_CAP_INFO_AVAILABLE; 524 525 if (detailed_cap_info) { 526 if (type != DP_DS_PORT_TYPE_WIRELESS) { 527 int tmp; 528 tmp = port_cap[2] & DP_DS_VGA_MAX_BPC_MASK; 529 530 if (tmp == 0) 531 return 8; 532 else 533 return 8 + (1<<tmp); 534 } 535 } 536 537 return -EINVAL; 538 } 539 EXPORT_SYMBOL(drm_dp_downstream_max_bpc); 540 541 /** 542 * drm_dp_downstream_id() - identify branch device 543 * @aux: DisplayPort AUX channel 544 * 545 * Returns branch device id on success or NULL on failure 546 */ 547 int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6])
548 {
549 return drm_dp_dpcd_read(aux, DP_BRANCH_ID, id, 6); 550 } 551 EXPORT_SYMBOL(drm_dp_downstream_id);
--- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation