From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============2778419873371227948==" MIME-Version: 1.0 From: kernel test robot To: kbuild-all@lists.01.org Subject: [chrome-os:chromeos-5.15 1850/2108] drivers/gpu/drm/msm/msm_drv.c:484:19: warning: variable 'mdss' set but not used Date: Wed, 22 Dec 2021 01:35:33 +0800 Message-ID: <202112220143.5ecUb70n-lkp@intel.com> List-Id: --===============2778419873371227948== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chr= omeos-5.15 head: 5beca9e7fb3026b32795cfeb5d2f704f782e2b26 commit: 9e837f7444e895b569f66487e5c3bd6b377847e1 [1850/2108] FROMGIT: drm/m= sm: Initialize MDSS irq domain at probe time config: arm64-buildonly-randconfig-r004-20211221 (https://download.01.org/0= day-ci/archive/20211222/202112220143.5ecUb70n-lkp(a)intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6c2bf0= 1270a8a52b7986d5c49eaa7ad1c7083ec5) reproduce (this is a W=3D1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/= make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu git remote add chrome-os https://chromium.googlesource.com/chromium= os/third_party/kernel git fetch --no-tags chrome-os chromeos-5.15 git checkout 9e837f7444e895b569f66487e5c3bd6b377847e1 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=3Dclang make.cross W=3D= 1 O=3Dbuild_dir ARCH=3Darm64 SHELL=3D/bin/bash drivers/gpu/drm/msm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/gpu/drm/msm/msm_drv.c:484:19: warning: variable 'mdss' set but n= ot used [-Wunused-but-set-variable] struct msm_mdss *mdss; ^ 1 warning generated. vim +/mdss +484 drivers/gpu/drm/msm/msm_drv.c 5bf9c0b614542d Rob Clark 2015-03-03 477 = 70a59dd82959f8 Daniel Vetter 2020-11-04 478 static int msm_d= rm_init(struct device *dev, const struct drm_driver *drv) 5bf9c0b614542d Rob Clark 2015-03-03 479 { 2b669875332fbd Archit Taneja 2016-05-02 480 struct platform= _device *pdev =3D to_platform_device(dev); ea5de7a83eef6f AngeloGioacchino Del Regno 2021-12-01 481 struct msm_drm_= private *priv =3D dev_get_drvdata(dev); 2b669875332fbd Archit Taneja 2016-05-02 482 struct drm_devi= ce *ddev; 5bf9c0b614542d Rob Clark 2015-03-03 483 struct msm_kms = *kms; bc3220be22577e Rajesh Yadav 2018-06-21 @484 struct msm_mdss= *mdss; 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 485 int ret, i; 5bf9c0b614542d Rob Clark 2015-03-03 486 = 2b669875332fbd Archit Taneja 2016-05-02 487 ddev =3D drm_de= v_alloc(drv, dev); 0f2886057be322 Tom Gundersen 2016-09-21 488 if (IS_ERR(ddev= )) { 6a41da17e87dee Mamta Shukla 2018-10-20 489 DRM_DEV_ERROR(= dev, "failed to allocate drm_device\n"); 0f2886057be322 Tom Gundersen 2016-09-21 490 return PTR_ERR= (ddev); 2b669875332fbd Archit Taneja 2016-05-02 491 } 2b669875332fbd Archit Taneja 2016-05-02 492 ddev->dev_priva= te =3D priv; 68209390f11603 Rob Clark 2016-05-17 493 priv->dev =3D d= dev; 5bf9c0b614542d Rob Clark 2015-03-03 494 = bc3220be22577e Rajesh Yadav 2018-06-21 495 mdss =3D priv->= mdss; bc3220be22577e Rajesh Yadav 2018-06-21 496 = 5bf9c0b614542d Rob Clark 2015-03-03 497 priv->wq =3D al= loc_ordered_workqueue("msm", 0); 1d2fa58e0dda33 Samuel Iglesias Gonsalvez 2021-06-07 498 priv->hangcheck= _period =3D DRM_MSM_HANGCHECK_DEFAULT_PERIOD; 5bf9c0b614542d Rob Clark 2015-03-03 499 = 6ed0897cd800c3 Rob Clark 2021-03-31 500 INIT_LIST_HEAD(= &priv->objects); 6ed0897cd800c3 Rob Clark 2021-03-31 501 mutex_init(&pri= v->obj_lock); 6ed0897cd800c3 Rob Clark 2021-03-31 502 = 3edfa30f2340e6 Rob Clark 2020-11-16 503 INIT_LIST_HEAD(= &priv->inactive_willneed); 3edfa30f2340e6 Rob Clark 2020-11-16 504 INIT_LIST_HEAD(= &priv->inactive_dontneed); 64fcbde772c72a Rob Clark 2021-04-05 505 INIT_LIST_HEAD(= &priv->inactive_unpinned); d984457b31c4c5 Rob Clark 2020-10-23 506 mutex_init(&pri= v->mm_lock); 48e7f18392c66f Kristian H. Kristensen 2019-03-20 507 = d984457b31c4c5 Rob Clark 2020-10-23 508 /* Teach lockde= p about lock ordering wrt. shrinker: */ d984457b31c4c5 Rob Clark 2020-10-23 509 fs_reclaim_acqu= ire(GFP_KERNEL); d984457b31c4c5 Rob Clark 2020-10-23 510 might_lock(&pri= v->mm_lock); d984457b31c4c5 Rob Clark 2020-10-23 511 fs_reclaim_rele= ase(GFP_KERNEL); 5bf9c0b614542d Rob Clark 2015-03-03 512 = 2b669875332fbd Archit Taneja 2016-05-02 513 drm_mode_config= _init(ddev); 060530f1ea6740 Rob Clark 2014-03-03 514 = d863f0c7b53628 Craig Tatlor 2020-12-30 515 ret =3D msm_ini= t_vram(ddev); 77050c3febb180 Jeykumar Sankaran 2018-06-27 516 if (ret) 9e837f7444e895 Dmitry Baryshkov 2021-12-01 517 return ret; 060530f1ea6740 Rob Clark 2014-03-03 518 = d863f0c7b53628 Craig Tatlor 2020-12-30 519 /* Bind all our= sub-components: */ d863f0c7b53628 Craig Tatlor 2020-12-30 520 ret =3D compone= nt_bind_all(dev, ddev); 13f15565f7887a Rob Clark 2015-05-07 521 if (ret) 9e837f7444e895 Dmitry Baryshkov 2021-12-01 522 return ret; 13f15565f7887a Rob Clark 2015-05-07 523 = d5653a994a665c Robin Murphy 2020-09-03 524 dma_set_max_seg= _size(dev, UINT_MAX); db735fc4036bbe Sean Paul 2020-01-21 525 = 68209390f11603 Rob Clark 2016-05-17 526 msm_gem_shrinke= r_init(ddev); 68209390f11603 Rob Clark 2016-05-17 527 = 06c0dd96bfbba8 Rob Clark 2013-11-30 528 switch (get_mdp= _ver(pdev)) { aaded2e3a1f6b7 Jeykumar Sankaran 2018-06-27 529 case KMS_MDP4: 2b669875332fbd Archit Taneja 2016-05-02 530 kms =3D mdp4_k= ms_init(ddev); 0a6030d224d3a4 Archit Taneja 2016-05-08 531 priv->kms =3D = kms; 06c0dd96bfbba8 Rob Clark 2013-11-30 532 break; aaded2e3a1f6b7 Jeykumar Sankaran 2018-06-27 533 case KMS_MDP5: 392ae6e0efa5e2 Archit Taneja 2016-06-14 534 kms =3D mdp5_k= ms_init(ddev); 06c0dd96bfbba8 Rob Clark 2013-11-30 535 break; 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 536 case KMS_DPU: 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 537 kms =3D dpu_km= s_init(ddev); 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 538 priv->kms =3D = kms; 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 539 break; 06c0dd96bfbba8 Rob Clark 2013-11-30 540 default: e6f6d63ed14c20 Jonathan Marek 2018-12-04 541 /* valid only = for the dummy headless case, where of_node=3DNULL */ e6f6d63ed14c20 Jonathan Marek 2018-12-04 542 WARN_ON(dev->o= f_node); e6f6d63ed14c20 Jonathan Marek 2018-12-04 543 kms =3D NULL; 06c0dd96bfbba8 Rob Clark 2013-11-30 544 break; 06c0dd96bfbba8 Rob Clark 2013-11-30 545 } 06c0dd96bfbba8 Rob Clark 2013-11-30 546 = c8afe684c95cd1 Rob Clark 2013-06-26 547 if (IS_ERR(kms)= ) { 6a41da17e87dee Mamta Shukla 2018-10-20 548 DRM_DEV_ERROR(= dev, "failed to load kms\n"); e4826a94c74446 Thomas Meyer 2013-09-16 549 ret =3D PTR_ER= R(kms); b2ccfdf1dde588 Jonathan Marek 2018-11-21 550 priv->kms =3D = NULL; 77050c3febb180 Jeykumar Sankaran 2018-06-27 551 goto err_msm_u= ninit; c8afe684c95cd1 Rob Clark 2013-06-26 552 } c8afe684c95cd1 Rob Clark 2013-06-26 553 = bb676df12b5e81 Jeykumar Sankaran 2018-06-11 554 /* Enable norma= lization of plane zpos */ bb676df12b5e81 Jeykumar Sankaran 2018-06-11 555 ddev->mode_conf= ig.normalize_zpos =3D true; bb676df12b5e81 Jeykumar Sankaran 2018-06-11 556 = c8afe684c95cd1 Rob Clark 2013-06-26 557 if (kms) { 2d99ced787e3d0 Rob Clark 2019-08-29 558 kms->dev =3D d= dev; c8afe684c95cd1 Rob Clark 2013-06-26 559 ret =3D kms->f= uncs->hw_init(kms); c8afe684c95cd1 Rob Clark 2013-06-26 560 if (ret) { 6a41da17e87dee Mamta Shukla 2018-10-20 561 DRM_DEV_ERROR= (dev, "kms hw init failed: %d\n", ret); 77050c3febb180 Jeykumar Sankaran 2018-06-27 562 goto err_msm_= uninit; c8afe684c95cd1 Rob Clark 2013-06-26 563 } c8afe684c95cd1 Rob Clark 2013-06-26 564 } c8afe684c95cd1 Rob Clark 2013-06-26 565 = 2b669875332fbd Archit Taneja 2016-05-02 566 ddev->mode_conf= ig.funcs =3D &mode_config_funcs; d14659f5de7d28 Sean Paul 2018-02-28 567 ddev->mode_conf= ig.helper_private =3D &mode_config_helper_funcs; c8afe684c95cd1 Rob Clark 2013-06-26 568 = 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 569 for (i =3D 0; i= < priv->num_crtcs; i++) { 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 570 /* initialize = event thread */ 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 571 priv->event_th= read[i].crtc_id =3D priv->crtcs[i]->base.id; 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 572 priv->event_th= read[i].dev =3D ddev; 1041dee2178ffd Bernard 2020-07-21 573 priv->event_th= read[i].worker =3D kthread_create_worker(0, 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 574 "crtc_event:%= d", priv->event_thread[i].crtc_id); 1041dee2178ffd Bernard 2020-07-21 575 if (IS_ERR(pri= v->event_thread[i].worker)) { a1c9b1e3bdd6d8 Zhen Lei 2021-05-08 576 ret =3D PTR_E= RR(priv->event_thread[i].worker); 4971f090aa7f6c Linus Torvalds 2018-12-25 577 DRM_DEV_ERROR= (dev, "failed to create crtc_event kthread\n"); bfddcfe155a2fe Wei Li 2021-07-05 578 ret =3D PTR_E= RR(priv->event_thread[i].worker); 7f9743abaa79d3 Jeykumar Sankaran 2018-10-10 579 goto err_msm_= uninit; 7f9743abaa79d3 Jeykumar Sankaran 2018-10-10 580 } 7f9743abaa79d3 Jeykumar Sankaran 2018-10-10 581 = 6d2b84a4e5b954 Linus Torvalds 2020-08-06 582 sched_set_fifo= (priv->event_thread[i].worker->task); 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 583 } 25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 584 = 2b669875332fbd Archit Taneja 2016-05-02 585 ret =3D drm_vbl= ank_init(ddev, priv->num_crtcs); c8afe684c95cd1 Rob Clark 2013-06-26 586 if (ret < 0) { 6a41da17e87dee Mamta Shukla 2018-10-20 587 DRM_DEV_ERROR(= dev, "failed to initialize vblank\n"); 77050c3febb180 Jeykumar Sankaran 2018-06-27 588 goto err_msm_u= ninit; c8afe684c95cd1 Rob Clark 2013-06-26 589 } c8afe684c95cd1 Rob Clark 2013-06-26 590 = a2b3a5571f386e Archit Taneja 2016-05-18 591 if (kms) { 2b669875332fbd Archit Taneja 2016-05-02 592 pm_runtime_get= _sync(dev); f026e431cf8611 Thomas Zimmermann 2021-08-03 593 ret =3D msm_ir= q_install(ddev, kms->irq); 2b669875332fbd Archit Taneja 2016-05-02 594 pm_runtime_put= _sync(dev); c8afe684c95cd1 Rob Clark 2013-06-26 595 if (ret < 0) { 6a41da17e87dee Mamta Shukla 2018-10-20 596 DRM_DEV_ERROR= (dev, "failed to install IRQ handler\n"); 77050c3febb180 Jeykumar Sankaran 2018-06-27 597 goto err_msm_= uninit; c8afe684c95cd1 Rob Clark 2013-06-26 598 } a2b3a5571f386e Archit Taneja 2016-05-18 599 } c8afe684c95cd1 Rob Clark 2013-06-26 600 = 2b669875332fbd Archit Taneja 2016-05-02 601 ret =3D drm_dev= _register(ddev, 0); 2b669875332fbd Archit Taneja 2016-05-02 602 if (ret) 77050c3febb180 Jeykumar Sankaran 2018-06-27 603 goto err_msm_u= ninit; 2b669875332fbd Archit Taneja 2016-05-02 604 = 6a7e0b0e9fb839 Fabio Estevam 2021-09-14 605 if (kms) { 98659487b845c0 Abhinav Kumar 2021-04-16 606 ret =3D msm_di= sp_snapshot_init(ddev); 98659487b845c0 Abhinav Kumar 2021-04-16 607 if (ret) 98659487b845c0 Abhinav Kumar 2021-04-16 608 DRM_DEV_ERROR= (dev, "msm_disp_snapshot_init failed ret =3D %d\n", ret); 6a7e0b0e9fb839 Fabio Estevam 2021-09-14 609 } 2b669875332fbd Archit Taneja 2016-05-02 610 drm_mode_config= _reset(ddev); cf3a7e4ce08e68 Rob Clark 2014-11-08 611 = :::::: The code@line 484 was first introduced by commit :::::: bc3220be22577e199452edbb6a24a980a4ab5c73 drm/msm/mdp5: subclass msm_= mdss for mdp5 :::::: TO: Rajesh Yadav :::::: CC: Sean Paul --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org --===============2778419873371227948==--