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Message-ID: <556247a2-aa6b-4aa6-9ffa-1066f9de86e9@kili.mountain>
Date: Sat, 27 May 2023 12:50:02 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: oe-kbuild@...ts.linux.dev,
Francisco Munoz <francisco.munoz.ruiz@...ux.intel.com>
Cc: lkp@...el.com, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Nirmal Patel <nirmal.patel@...ux.intel.com>,
Jonathan Derrick <jonathan.derrick@...ux.dev>
Subject: drivers/pci/controller/vmd.c:876 vmd_enable_domain() error:
uninitialized symbol 'ret'.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0d85b27b0cc6b5cf54567c5ad913a247a71583ce
commit: 0a584655ef89541dae4d48d2c523b1480ae80284 PCI: vmd: Fix secondary bus reset for Intel bridges
config: x86_64-randconfig-m001-20230526 (https://download.01.org/0day-ci/archive/20230527/202305270219.B96IiIfv-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Reported-by: Dan Carpenter <error27@...il.com>
| Closes: https://lore.kernel.org/r/202305270219.B96IiIfv-lkp@intel.com/
smatch warnings:
drivers/pci/controller/vmd.c:876 vmd_enable_domain() error: uninitialized symbol 'ret'.
vim +/ret +876 drivers/pci/controller/vmd.c
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 712 static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 713 {
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 714 struct pci_sysdata *sd = &vmd->sysdata;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 715 struct resource *res;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 716 u32 upper_bits;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 717 unsigned long flags;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 718 LIST_HEAD(resources);
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 719 resource_size_t offset[2] = {0};
e3dffa4f6c3612 drivers/pci/controller/vmd.c Jon Derrick 2019-09-16 720 resource_size_t membar2_offset = 0x2000;
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 721 struct pci_bus *child;
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 722 struct pci_dev *dev;
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 723 int ret;
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 724
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 725 /*
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 726 * Shadow registers may exist in certain VMD device ids which allow
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 727 * guests to correctly assign host physical addresses to the root ports
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 728 * and child devices. These registers will either return the host value
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 729 * or 0, depending on an enable bit in the VMD device.
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 730 */
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 731 if (features & VMD_FEAT_HAS_MEMBAR_SHADOW) {
a1a30170138c9c drivers/pci/controller/vmd.c Jon Derrick 2019-09-16 732 membar2_offset = MB2_SHADOW_OFFSET + MB2_SHADOW_SIZE;
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 733 ret = vmd_get_phys_offsets(vmd, true, &offset[0], &offset[1]);
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 734 if (ret)
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 735 return ret;
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 736 } else if (features & VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP) {
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 737 ret = vmd_get_phys_offsets(vmd, false, &offset[0], &offset[1]);
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 738 if (ret)
030109c0376c8f drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 739 return ret;
51f939b11cb1c4 drivers/pci/controller/vmd.c Jon Derrick 2020-05-27 740 }
51f939b11cb1c4 drivers/pci/controller/vmd.c Jon Derrick 2020-05-27 741
2a5a9c9a20f919 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 742 /*
2a5a9c9a20f919 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 743 * Certain VMD devices may have a root port configuration option which
08bcdd22ecdb01 drivers/pci/controller/vmd.c Jon Derrick 2019-11-12 744 * limits the bus range to between 0-127, 128-255, or 224-255
2a5a9c9a20f919 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 745 */
2a5a9c9a20f919 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 746 if (features & VMD_FEAT_HAS_BUS_RESTRICTIONS) {
2e1224183b1bec drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 747 ret = vmd_get_bus_number_start(vmd);
2e1224183b1bec drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 748 if (ret)
2e1224183b1bec drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 749 return ret;
2a5a9c9a20f919 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 750 }
2a5a9c9a20f919 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 751
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 752 res = &vmd->dev->resource[VMD_CFGBAR];
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 753 vmd->resources[0] = (struct resource) {
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 754 .name = "VMD CFGBAR",
e3dffa4f6c3612 drivers/pci/controller/vmd.c Jon Derrick 2019-09-16 755 .start = vmd->busn_start,
e3dffa4f6c3612 drivers/pci/controller/vmd.c Jon Derrick 2019-09-16 756 .end = vmd->busn_start + (resource_size(res) >> 20) - 1,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 757 .flags = IORESOURCE_BUS | IORESOURCE_PCI_FIXED,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 758 };
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 759
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 760 /*
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 761 * If the window is below 4GB, clear IORESOURCE_MEM_64 so we can
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 762 * put 32-bit resources in the window.
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 763 *
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 764 * There's no hardware reason why a 64-bit window *couldn't*
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 765 * contain a 32-bit resource, but pbus_size_mem() computes the
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 766 * bridge window size assuming a 64-bit window will contain no
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 767 * 32-bit resources. __pci_assign_resource() enforces that
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 768 * artificial restriction to make sure everything will fit.
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 769 *
f6b6aefee70aa5 drivers/pci/controller/vmd.c Bjorn Helgaas 2019-05-30 770 * The only way we could use a 64-bit non-prefetchable MEMBAR is
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 771 * if its address is <4GB so that we can convert it to a 32-bit
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 772 * resource. To be visible to the host OS, all VMD endpoints must
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 773 * be initially configured by platform BIOS, which includes setting
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 774 * up these resources. We can assume the device is configured
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 775 * according to the platform needs.
83cc54a608b66d arch/x86/pci/vmd.c Keith Busch 2016-03-02 776 */
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 777 res = &vmd->dev->resource[VMD_MEMBAR1];
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 778 upper_bits = upper_32_bits(res->end);
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 779 flags = res->flags & ~IORESOURCE_SIZEALIGN;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 780 if (!upper_bits)
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 781 flags &= ~IORESOURCE_MEM_64;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 782 vmd->resources[1] = (struct resource) {
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 783 .name = "VMD MEMBAR1",
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 784 .start = res->start,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 785 .end = res->end,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 786 .flags = flags,
2c2c5c5cd213ae arch/x86/pci/vmd.c Jon Derrick 2016-02-24 787 .parent = res,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 788 };
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 789
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 790 res = &vmd->dev->resource[VMD_MEMBAR2];
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 791 upper_bits = upper_32_bits(res->end);
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 792 flags = res->flags & ~IORESOURCE_SIZEALIGN;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 793 if (!upper_bits)
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 794 flags &= ~IORESOURCE_MEM_64;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 795 vmd->resources[2] = (struct resource) {
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 796 .name = "VMD MEMBAR2",
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 797 .start = res->start + membar2_offset,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 798 .end = res->end,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 799 .flags = flags,
2c2c5c5cd213ae arch/x86/pci/vmd.c Jon Derrick 2016-02-24 800 .parent = res,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 801 };
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 802
34067c56fa177d drivers/pci/controller/vmd.c Jon Derrick 2020-01-21 803 sd->vmd_dev = vmd->dev;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 804 sd->domain = vmd_find_free_domain();
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 805 if (sd->domain < 0)
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 806 return sd->domain;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 807
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 808 sd->node = pcibus_to_node(vmd->dev->bus);
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 809
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 810 /*
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 811 * Currently MSI remapping must be enabled in guest passthrough mode
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 812 * due to some missing interrupt remapping plumbing. This is probably
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 813 * acceptable because the guest is usually CPU-limited and MSI
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 814 * remapping doesn't become a performance bottleneck.
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 815 */
c94f732e8001a8 drivers/pci/controller/vmd.c Nirmal Patel 2022-05-11 816 if (!(features & VMD_FEAT_CAN_BYPASS_MSI_REMAP) ||
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 817 offset[0] || offset[1]) {
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 818 ret = vmd_alloc_irqs(vmd);
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 819 if (ret)
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 820 return ret;
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 821
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 822 vmd_set_msi_remapping(vmd, true);
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 823
1552b11ba15e93 drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 824 ret = vmd_create_irq_domain(vmd);
1552b11ba15e93 drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 825 if (ret)
1552b11ba15e93 drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 826 return ret;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 827
d7f954e54079b4 drivers/pci/controller/vmd.c Thomas Gleixner 2020-08-26 828 /*
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 829 * Override the IRQ domain bus token so the domain can be
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 830 * distinguished from a regular PCI/MSI domain.
d7f954e54079b4 drivers/pci/controller/vmd.c Thomas Gleixner 2020-08-26 831 */
d7f954e54079b4 drivers/pci/controller/vmd.c Thomas Gleixner 2020-08-26 832 irq_domain_update_bus_token(vmd->irq_domain, DOMAIN_BUS_VMD_MSI);
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 833 } else {
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 834 vmd_set_msi_remapping(vmd, false);
ee81ee84f8739e drivers/pci/controller/vmd.c Jon Derrick 2021-02-10 835 }
d7f954e54079b4 drivers/pci/controller/vmd.c Thomas Gleixner 2020-08-26 836
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 837 pci_add_resource(&resources, &vmd->resources[0]);
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 838 pci_add_resource_offset(&resources, &vmd->resources[1], offset[0]);
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 839 pci_add_resource_offset(&resources, &vmd->resources[2], offset[1]);
6788958e4f3ca1 drivers/pci/host/vmd.c Jon Derrick 2018-05-18 840
e3dffa4f6c3612 drivers/pci/controller/vmd.c Jon Derrick 2019-09-16 841 vmd->bus = pci_create_root_bus(&vmd->dev->dev, vmd->busn_start,
e3dffa4f6c3612 drivers/pci/controller/vmd.c Jon Derrick 2019-09-16 842 &vmd_ops, sd, &resources);
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 843 if (!vmd->bus) {
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 844 pci_free_resource_list(&resources);
1552b11ba15e93 drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 845 vmd_remove_irq_domain(vmd);
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 846 return -ENODEV;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 847 }
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 848
04b12ef163d10e drivers/pci/controller/vmd.c Kai-Heng Feng 2021-12-03 849 vmd_copy_host_bridge_flags(pci_find_host_bridge(vmd->dev->bus),
04b12ef163d10e drivers/pci/controller/vmd.c Kai-Heng Feng 2021-12-03 850 to_pci_host_bridge(vmd->bus->bridge));
04b12ef163d10e drivers/pci/controller/vmd.c Kai-Heng Feng 2021-12-03 851
2c2c5c5cd213ae arch/x86/pci/vmd.c Jon Derrick 2016-02-24 852 vmd_attach_resources(vmd);
1552b11ba15e93 drivers/pci/controller/vmd.c Jon Derrick 2020-07-28 853 if (vmd->irq_domain)
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 854 dev_set_msi_domain(&vmd->bus->dev, vmd->irq_domain);
886e67100b904c drivers/pci/controller/vmd.c Nirmal Patel 2022-05-11 855 else
886e67100b904c drivers/pci/controller/vmd.c Nirmal Patel 2022-05-11 856 dev_set_msi_domain(&vmd->bus->dev,
886e67100b904c drivers/pci/controller/vmd.c Nirmal Patel 2022-05-11 857 dev_get_msi_domain(&vmd->dev->dev));
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 858
59dc33252ee777 drivers/pci/controller/vmd.c Rafael J. Wysocki 2021-08-24 859 vmd_acpi_begin();
59dc33252ee777 drivers/pci/controller/vmd.c Rafael J. Wysocki 2021-08-24 860
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 861 pci_scan_child_bus(vmd->bus);
6aab5622296b99 drivers/pci/controller/vmd.c Nirmal Patel 2021-11-16 862 vmd_domain_reset(vmd);
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 863
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 864 /* When Intel VMD is enabled, the OS does not discover the Root Ports
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 865 * owned by Intel VMD within the MMCFG space. pci_reset_bus() applies
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 866 * a reset to the parent of the PCI device supplied as argument. This
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 867 * is why we pass a child device, so the reset can be triggered at
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 868 * the Intel bridge level and propagated to all the children in the
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 869 * hierarchy.
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 870 */
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 871 list_for_each_entry(child, &vmd->bus->children, node) {
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 872 if (!list_empty(&child->devices)) {
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 873 dev = list_first_entry(&child->devices,
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 874 struct pci_dev, bus_list);
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 875 if (pci_reset_bus(dev))
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 @876 pci_warn(dev, "can't reset device: %d\n", ret);
"ret" is not set here. No use printing it.
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 877
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 878 break;
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 879 }
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 880 }
0a584655ef8954 drivers/pci/controller/vmd.c Francisco Munoz 2022-12-05 881
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 882 pci_assign_unassigned_bus_resources(vmd->bus);
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 883
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 884 /*
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 885 * VMD root buses are virtual and don't return true on pci_is_pcie()
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 886 * and will fail pcie_bus_configure_settings() early. It can instead be
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 887 * run on each of the real root ports.
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 888 */
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 889 list_for_each_entry(child, &vmd->bus->children, node)
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 890 pcie_bus_configure_settings(child);
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 891
0294951030eb8e drivers/pci/controller/vmd.c Jon Derrick 2018-12-13 892 pci_bus_add_devices(vmd->bus);
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 893
59dc33252ee777 drivers/pci/controller/vmd.c Rafael J. Wysocki 2021-08-24 894 vmd_acpi_end();
59dc33252ee777 drivers/pci/controller/vmd.c Rafael J. Wysocki 2021-08-24 895
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 896 WARN(sysfs_create_link(&vmd->dev->dev.kobj, &vmd->bus->dev.kobj,
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 897 "domain"), "Can't create symlink to domain\n");
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 898 return 0;
185a383ada2e77 arch/x86/pci/vmd.c Keith Busch 2016-01-12 899 }
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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