[kbuild-all] Re: [PATCH] mailbox: tegra: Fix superfluous IRQ error message

Hi Jon, I love your patch! Yet something to improve: [auto build test ERROR on tegra/for-next] [cannot apply to v5.4-rc3 next-20191011] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Jon-Hunter/mailbox-tegra-Fix-sup... base: https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=arm If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers//mailbox/tegra-hsp.c: In function 'tegra_hsp_probe': err = platform_get_irq_byname_optional(pdev, "doorbell"); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ platform_get_irq_optional cc1: some warnings being treated as errors vim +660 drivers//mailbox/tegra-hsp.c 630 631 static int tegra_hsp_probe(struct platform_device *pdev) 632 { 633 struct tegra_hsp *hsp; 634 struct resource *res; 635 unsigned int i; 636 u32 value; 637 int err; 638 639 hsp = devm_kzalloc(&pdev->dev, sizeof(*hsp), GFP_KERNEL); 640 if (!hsp) 641 return -ENOMEM; 642 643 hsp->dev = &pdev->dev; 644 hsp->soc = of_device_get_match_data(&pdev->dev); 645 INIT_LIST_HEAD(&hsp->doorbells); 646 spin_lock_init(&hsp->lock); 647 648 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 649 hsp->regs = devm_ioremap_resource(&pdev->dev, res); 650 if (IS_ERR(hsp->regs)) 651 return PTR_ERR(hsp->regs); 652 653 value = tegra_hsp_readl(hsp, HSP_INT_DIMENSIONING); 654 hsp->num_sm = (value >> HSP_nSM_SHIFT) & HSP_nINT_MASK; 655 hsp->num_ss = (value >> HSP_nSS_SHIFT) & HSP_nINT_MASK; 656 hsp->num_as = (value >> HSP_nAS_SHIFT) & HSP_nINT_MASK; 657 hsp->num_db = (value >> HSP_nDB_SHIFT) & HSP_nINT_MASK; 658 hsp->num_si = (value >> HSP_nSI_SHIFT) & HSP_nINT_MASK; 659 661 if (err >= 0) 662 hsp->doorbell_irq = err; 663 664 if (hsp->num_si > 0) { 665 unsigned int count = 0; 666 667 hsp->shared_irqs = devm_kcalloc(&pdev->dev, hsp->num_si, 668 sizeof(*hsp->shared_irqs), 669 GFP_KERNEL); 670 if (!hsp->shared_irqs) 671 return -ENOMEM; 672 673 for (i = 0; i < hsp->num_si; i++) { 674 char *name; 675 676 name = kasprintf(GFP_KERNEL, "shared%u", i); 677 if (!name) 678 return -ENOMEM; 679 680 err = platform_get_irq_byname_optional(pdev, name); 681 if (err >= 0) { 682 hsp->shared_irqs[i] = err; 683 count++; 684 } 685 686 kfree(name); 687 } 688 689 if (count == 0) { 690 devm_kfree(&pdev->dev, hsp->shared_irqs); 691 hsp->shared_irqs = NULL; 692 } 693 } 694 695 /* setup the doorbell controller */ 696 hsp->mbox_db.of_xlate = tegra_hsp_db_xlate; 697 hsp->mbox_db.num_chans = 32; 698 hsp->mbox_db.dev = &pdev->dev; 699 hsp->mbox_db.ops = &tegra_hsp_db_ops; 700 701 hsp->mbox_db.chans = devm_kcalloc(&pdev->dev, hsp->mbox_db.num_chans, 702 sizeof(*hsp->mbox_db.chans), 703 GFP_KERNEL); 704 if (!hsp->mbox_db.chans) 705 return -ENOMEM; 706 707 if (hsp->doorbell_irq) { 708 err = tegra_hsp_add_doorbells(hsp); 709 if (err < 0) { 710 dev_err(&pdev->dev, "failed to add doorbells: %d\n", 711 err); 712 return err; 713 } 714 } 715 716 err = devm_mbox_controller_register(&pdev->dev, &hsp->mbox_db); 717 if (err < 0) { 718 dev_err(&pdev->dev, "failed to register doorbell mailbox: %d\n", 719 err); 720 return err; 721 } 722 723 /* setup the shared mailbox controller */ 724 hsp->mbox_sm.of_xlate = tegra_hsp_sm_xlate; 725 hsp->mbox_sm.num_chans = hsp->num_sm; 726 hsp->mbox_sm.dev = &pdev->dev; 727 hsp->mbox_sm.ops = &tegra_hsp_sm_ops; 728 729 hsp->mbox_sm.chans = devm_kcalloc(&pdev->dev, hsp->mbox_sm.num_chans, 730 sizeof(*hsp->mbox_sm.chans), 731 GFP_KERNEL); 732 if (!hsp->mbox_sm.chans) 733 return -ENOMEM; 734 735 if (hsp->shared_irqs) { 736 err = tegra_hsp_add_mailboxes(hsp, &pdev->dev); 737 if (err < 0) { 738 dev_err(&pdev->dev, "failed to add mailboxes: %d\n", 739 err); 740 return err; 741 } 742 } 743 744 err = devm_mbox_controller_register(&pdev->dev, &hsp->mbox_sm); 745 if (err < 0) { 746 dev_err(&pdev->dev, "failed to register shared mailbox: %d\n", 747 err); 748 return err; 749 } 750 751 platform_set_drvdata(pdev, hsp); 752 753 if (hsp->doorbell_irq) { 754 err = devm_request_irq(&pdev->dev, hsp->doorbell_irq, 755 tegra_hsp_doorbell_irq, IRQF_NO_SUSPEND, 756 dev_name(&pdev->dev), hsp); 757 if (err < 0) { 758 dev_err(&pdev->dev, 759 "failed to request doorbell IRQ#%u: %d\n", 760 hsp->doorbell_irq, err); 761 return err; 762 } 763 } 764 765 if (hsp->shared_irqs) { 766 err = tegra_hsp_request_shared_irq(hsp); 767 if (err < 0) 768 return err; 769 } 770 771 return 0; 772 } 773 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation