tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: ae0c77e1bc6963c67c6c09e8c72959fcb1ed8d5f commit: 625d4ffb438cacc9b1ebaa48748cdc7171587cdc [7468/9183] gpu: host1x: Rewrite syncpoint interrupt handling config: arm64-randconfig-r011-20230129 (https://download.01.org/0day-ci/archive/20230131/202301310227.SeMvYeta-lkp@xxxxxxxxx/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a) reproduce (this is a W=1 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 # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=625d4ffb438cacc9b1ebaa48748cdc7171587cdc git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 625d4ffb438cacc9b1ebaa48748cdc7171587cdc # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/host1x/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/gpu/host1x/dev.c:520:6: warning: variable 'syncpt_irq' is uninitialized when used here [-Wuninitialized] if (syncpt_irq < 0) ^~~~~~~~~~ drivers/gpu/host1x/dev.c:490:16: note: initialize the variable 'syncpt_irq' to silence this warning int syncpt_irq; ^ = 0 1 warning generated. vim +/syncpt_irq +520 drivers/gpu/host1x/dev.c 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 486 754716874389cc Terje Bergstrom 2013-03-22 487 static int host1x_probe(struct platform_device *pdev) 754716874389cc Terje Bergstrom 2013-03-22 488 { 754716874389cc Terje Bergstrom 2013-03-22 489 struct host1x *host; 754716874389cc Terje Bergstrom 2013-03-22 490 int syncpt_irq; 754716874389cc Terje Bergstrom 2013-03-22 491 int err; 754716874389cc Terje Bergstrom 2013-03-22 492 6a341fdff16e13 Thierry Reding 2017-08-21 493 host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL); 6a341fdff16e13 Thierry Reding 2017-08-21 494 if (!host) 6a341fdff16e13 Thierry Reding 2017-08-21 495 return -ENOMEM; 6a341fdff16e13 Thierry Reding 2017-08-21 496 6a341fdff16e13 Thierry Reding 2017-08-21 497 host->info = of_device_get_match_data(&pdev->dev); 754716874389cc Terje Bergstrom 2013-03-22 498 f1b53c4e2c08cb Mikko Perttunen 2017-09-05 499 if (host->info->has_hypervisor) { 97dea367d8dab9 Mikko Perttunen 2022-06-27 500 host->regs = devm_platform_ioremap_resource_byname(pdev, "vm"); 97dea367d8dab9 Mikko Perttunen 2022-06-27 501 if (IS_ERR(host->regs)) 97dea367d8dab9 Mikko Perttunen 2022-06-27 502 return PTR_ERR(host->regs); f1b53c4e2c08cb Mikko Perttunen 2017-09-05 503 97dea367d8dab9 Mikko Perttunen 2022-06-27 504 host->hv_regs = devm_platform_ioremap_resource_byname(pdev, "hypervisor"); 97dea367d8dab9 Mikko Perttunen 2022-06-27 505 if (IS_ERR(host->hv_regs)) 97dea367d8dab9 Mikko Perttunen 2022-06-27 506 return PTR_ERR(host->hv_regs); 97dea367d8dab9 Mikko Perttunen 2022-06-27 507 97dea367d8dab9 Mikko Perttunen 2022-06-27 508 if (host->info->has_common) { 97dea367d8dab9 Mikko Perttunen 2022-06-27 509 host->common_regs = devm_platform_ioremap_resource_byname(pdev, "common"); 97dea367d8dab9 Mikko Perttunen 2022-06-27 510 if (IS_ERR(host->common_regs)) 97dea367d8dab9 Mikko Perttunen 2022-06-27 511 return PTR_ERR(host->common_regs); f1b53c4e2c08cb Mikko Perttunen 2017-09-05 512 } f1b53c4e2c08cb Mikko Perttunen 2017-09-05 513 } else { 97dea367d8dab9 Mikko Perttunen 2022-06-27 514 host->regs = devm_platform_ioremap_resource(pdev, 0); 97dea367d8dab9 Mikko Perttunen 2022-06-27 515 if (IS_ERR(host->regs)) 97dea367d8dab9 Mikko Perttunen 2022-06-27 516 return PTR_ERR(host->regs); f1b53c4e2c08cb Mikko Perttunen 2017-09-05 517 } 754716874389cc Terje Bergstrom 2013-03-22 518 625d4ffb438cac Mikko Perttunen 2023-01-19 519 host->syncpt_irq = platform_get_irq(pdev, 0); 033ccdb7f6b117 YueHaibing 2019-11-02 @520 if (syncpt_irq < 0) 7b2c63de20080c Gustavo A. R. Silva 2017-08-08 521 return syncpt_irq; 754716874389cc Terje Bergstrom 2013-03-22 522 776dc38403676f Thierry Reding 2013-10-14 523 mutex_init(&host->devices_lock); 776dc38403676f Thierry Reding 2013-10-14 524 INIT_LIST_HEAD(&host->devices); 776dc38403676f Thierry Reding 2013-10-14 525 INIT_LIST_HEAD(&host->list); 754716874389cc Terje Bergstrom 2013-03-22 526 host->dev = &pdev->dev; 754716874389cc Terje Bergstrom 2013-03-22 527 754716874389cc Terje Bergstrom 2013-03-22 528 /* set common host1x device data */ 754716874389cc Terje Bergstrom 2013-03-22 529 platform_set_drvdata(pdev, host); 754716874389cc Terje Bergstrom 2013-03-22 530 d98914ebc2af45 Thierry Reding 2019-09-09 531 host->dev->dma_parms = &host->dma_parms; d98914ebc2af45 Thierry Reding 2019-09-09 532 dma_set_max_seg_size(host->dev, UINT_MAX); d98914ebc2af45 Thierry Reding 2019-09-09 533 754716874389cc Terje Bergstrom 2013-03-22 534 if (host->info->init) { 754716874389cc Terje Bergstrom 2013-03-22 535 err = host->info->init(host); 754716874389cc Terje Bergstrom 2013-03-22 536 if (err) 754716874389cc Terje Bergstrom 2013-03-22 537 return err; 754716874389cc Terje Bergstrom 2013-03-22 538 } 754716874389cc Terje Bergstrom 2013-03-22 539 754716874389cc Terje Bergstrom 2013-03-22 540 host->clk = devm_clk_get(&pdev->dev, NULL); 754716874389cc Terje Bergstrom 2013-03-22 541 if (IS_ERR(host->clk)) { 754716874389cc Terje Bergstrom 2013-03-22 542 err = PTR_ERR(host->clk); 4bb923e8075f3a Thierry Reding 2019-06-04 543 4bb923e8075f3a Thierry Reding 2019-06-04 544 if (err != -EPROBE_DEFER) 4bb923e8075f3a Thierry Reding 2019-06-04 545 dev_err(&pdev->dev, "failed to get clock: %d\n", err); 4bb923e8075f3a Thierry Reding 2019-06-04 546 754716874389cc Terje Bergstrom 2013-03-22 547 return err; 754716874389cc Terje Bergstrom 2013-03-22 548 } 754716874389cc Terje Bergstrom 2013-03-22 549 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 550 err = host1x_get_resets(host); 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 551 if (err) b386c6b73ac6c2 Thierry Reding 2017-03-21 552 return err; af1cbfb9bf0fe0 Thierry Reding 2019-10-28 553 e5d5db1a79a592 Christophe JAILLET 2021-11-07 554 host1x_bo_cache_init(&host->cache); e5d5db1a79a592 Christophe JAILLET 2021-11-07 555 06867a362de08f Thierry Reding 2019-10-28 556 err = host1x_iommu_init(host); 06867a362de08f Thierry Reding 2019-10-28 557 if (err < 0) { 06867a362de08f Thierry Reding 2019-10-28 558 dev_err(&pdev->dev, "failed to setup IOMMU: %d\n", err); e5d5db1a79a592 Christophe JAILLET 2021-11-07 559 goto destroy_cache; 404bfb78daf3be Mikko Perttunen 2016-12-14 560 } 404bfb78daf3be Mikko Perttunen 2016-12-14 561 8474b02531c488 Mikko Perttunen 2017-06-15 562 err = host1x_channel_list_init(&host->channel_list, 8474b02531c488 Mikko Perttunen 2017-06-15 563 host->info->nb_channels); 6579324a41cc41 Terje Bergstrom 2013-03-22 564 if (err) { 6579324a41cc41 Terje Bergstrom 2013-03-22 565 dev_err(&pdev->dev, "failed to initialize channel list\n"); 06867a362de08f Thierry Reding 2019-10-28 566 goto iommu_exit; 6579324a41cc41 Terje Bergstrom 2013-03-22 567 } 6579324a41cc41 Terje Bergstrom 2013-03-22 568 8aa5bcb6161206 Mikko Perttunen 2022-06-27 569 err = host1x_memory_context_list_init(host); 8aa5bcb6161206 Mikko Perttunen 2022-06-27 570 if (err) { 8aa5bcb6161206 Mikko Perttunen 2022-06-27 571 dev_err(&pdev->dev, "failed to initialize context list\n"); 8aa5bcb6161206 Mikko Perttunen 2022-06-27 572 goto free_channels; 8aa5bcb6161206 Mikko Perttunen 2022-06-27 573 } 8aa5bcb6161206 Mikko Perttunen 2022-06-27 574 754716874389cc Terje Bergstrom 2013-03-22 575 err = host1x_syncpt_init(host); 754716874389cc Terje Bergstrom 2013-03-22 576 if (err) { 754716874389cc Terje Bergstrom 2013-03-22 577 dev_err(&pdev->dev, "failed to initialize syncpts\n"); 8aa5bcb6161206 Mikko Perttunen 2022-06-27 578 goto free_contexts; 754716874389cc Terje Bergstrom 2013-03-22 579 } 754716874389cc Terje Bergstrom 2013-03-22 580 625d4ffb438cac Mikko Perttunen 2023-01-19 581 err = host1x_intr_init(host); 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 582 if (err) { 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 583 dev_err(&pdev->dev, "failed to initialize interrupts\n"); 06867a362de08f Thierry Reding 2019-10-28 584 goto deinit_syncpt; 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 585 } 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 586 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 587 pm_runtime_enable(&pdev->dev); 6236451d83a720 Terje Bergstrom 2013-03-22 588 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 589 err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 590 if (err) 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 591 goto pm_disable; 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 592 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 593 /* the driver's code isn't ready yet for the dynamic RPM */ 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 594 err = pm_runtime_resume_and_get(&pdev->dev); 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 595 if (err) 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 596 goto pm_disable; 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 597 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 598 host1x_debug_init(host); 6841482b82e5ba Thierry Reding 2019-02-01 599 776dc38403676f Thierry Reding 2013-10-14 600 err = host1x_register(host); 776dc38403676f Thierry Reding 2013-10-14 601 if (err < 0) 109be8b23fb2ec Christophe JAILLET 2020-04-26 602 goto deinit_debugfs; 692e6d7be80992 Terje Bergstrom 2013-03-22 603 ca2030d56bb7b7 Thierry Reding 2020-06-12 604 err = devm_of_platform_populate(&pdev->dev); ca2030d56bb7b7 Thierry Reding 2020-06-12 605 if (err < 0) ca2030d56bb7b7 Thierry Reding 2020-06-12 606 goto unregister; ca2030d56bb7b7 Thierry Reding 2020-06-12 607 754716874389cc Terje Bergstrom 2013-03-22 608 return 0; 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 609 ca2030d56bb7b7 Thierry Reding 2020-06-12 610 unregister: ca2030d56bb7b7 Thierry Reding 2020-06-12 611 host1x_unregister(host); 109be8b23fb2ec Christophe JAILLET 2020-04-26 612 deinit_debugfs: 109be8b23fb2ec Christophe JAILLET 2020-04-26 613 host1x_debug_deinit(host); 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 614 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 615 pm_runtime_put_sync_suspend(&pdev->dev); 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 616 pm_disable: 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 617 pm_runtime_disable(&pdev->dev); 6b6776e2ab8ac7 Dmitry Osipenko 2021-12-01 618 776dc38403676f Thierry Reding 2013-10-14 619 host1x_intr_deinit(host); 06867a362de08f Thierry Reding 2019-10-28 620 deinit_syncpt: 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 621 host1x_syncpt_deinit(host); 8aa5bcb6161206 Mikko Perttunen 2022-06-27 622 free_contexts: 8aa5bcb6161206 Mikko Perttunen 2022-06-27 623 host1x_memory_context_list_free(&host->context_list); 06867a362de08f Thierry Reding 2019-10-28 624 free_channels: 8474b02531c488 Mikko Perttunen 2017-06-15 625 host1x_channel_list_free(&host->channel_list); 06867a362de08f Thierry Reding 2019-10-28 626 iommu_exit: 06867a362de08f Thierry Reding 2019-10-28 627 host1x_iommu_exit(host); e5d5db1a79a592 Christophe JAILLET 2021-11-07 628 destroy_cache: e5d5db1a79a592 Christophe JAILLET 2021-11-07 629 host1x_bo_cache_destroy(&host->cache); 404bfb78daf3be Mikko Perttunen 2016-12-14 630 7ede0b0bf3e259 Terje Bergstrom 2013-03-22 631 return err; 754716874389cc Terje Bergstrom 2013-03-22 632 } 754716874389cc Terje Bergstrom 2013-03-22 633 :::::: The code at line 520 was first introduced by commit :::::: 033ccdb7f6b11701623507339646013b4ce389d3 gpu: host1x: Remove dev_err() on platform_get_irq() failure :::::: TO: YueHaibing <yuehaibing@xxxxxxxxxx> :::::: CC: Thierry Reding <treding@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
