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Code Issues Releases Packages Activity
linux/drivers/pci
History
Zijun Hu 97bc165a06 PCI: endpoint: Finish virtual EP removal in pci_epf_remove_vepf() 
commit 3b9f942eb2 upstream.

When removing a virtual Endpoint, pci_epf_remove_vepf() failed to clear
epf_vf->epf_pf, which caused a subsequent pci_epf_add_vepf() to incorrectly
return -EBUSY:

  pci_epf_add_vepf(epf_pf, epf_vf)      // add
  pci_epf_remove_vepf(epf_pf, epf_vf)   // remove
  pci_epf_add_vepf(epf_pf, epf_vf)      // add again, -EBUSY error

Fix by clearing epf_vf->epf_pf in pci_epf_remove_vepf().

Link: https://lore.kernel.org/r/20241210-pci-epc-core_fix-v3-3-4d86dd573e4b@quicinc.com
Fixes: 1cf362e907 ("PCI: endpoint: Add support to add virtual function in endpoint core")
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-02-17 09:40:26 +01:00
..
controller PCI: imx6: Skip controller_id generation logic for i.MX7D 2025-02-08 09:52:25 +01:00
endpoint PCI: endpoint: Finish virtual EP removal in pci_epf_remove_vepf() 2025-02-17 09:40:26 +01:00
hotplug PCI: cpqphp: Fix PCIBIOS_* return value confusion 2024-12-09 10:32:25 +01:00
msi PCI/MSI: Handle lack of irqdomain gracefully 2025-01-02 10:32:10 +01:00
pcie PCI/AER: Disable AER service on suspend 2024-12-27 13:58:42 +01:00
switch PCI: switchtec: Fix an error handling path in switchtec_pci_probe() 2024-03-26 18:19:46 -04:00
access.c PCI: Simplify pcie_capability_clear_and_set_word() control flow 2023-08-25 08:16:10 -05:00
ats.c PCI: Enable PASID only when ACS RR & UF enabled on upstream path 2022-11-03 15:47:47 +01:00
bus.c PCI/ASPM: Fix deadlock when enabling ASPM 2024-04-27 17:11:44 +02:00
doe.c PCI/DOE: Fix destroy_work_on_stack() race 2023-07-27 15:20:47 -05:00
ecam.c PCI: Dynamically map ECAM regions 2021-06-16 17:20:40 -05:00
host-bridge.c PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus 2021-09-02 17:59:58 +02:00
iov.c PCI/IOV: Use pci_dev_id() to simplify the code 2023-08-07 16:15:39 -05:00
irq.c PCI: Check for alloc failure in pci_request_irq() 2022-11-21 16:55:18 -06:00
Kconfig PCI: Fix CONFIG_PCI_DYNAMIC_OF_NODES kconfig dependencies 2023-09-05 12:42:28 -05:00
Makefile PCI: Create device tree node for bridge 2023-08-22 14:56:09 -05:00
mmap.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
of.c PCI: of: Destroy changeset when adding PCI device node fails 2023-09-29 17:33:51 -05:00
of_property.c PCI: of_property: Assign PCI instead of CPU bus address to dynamic PCI nodes 2024-12-09 10:33:08 +01:00
p2pdma.c PCI/P2PDMA: Fix a sleeping issue in a RCU read section 2024-03-26 18:19:46 -04:00
pci-acpi.c PCI/sysfs: Protect driver's D3cold preference from user space 2023-11-28 17:19:57 +00:00
pci-bridge-emul.c PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-bridge-emul.h PCI: pci-bridge-emul: Set position of PCI capabilities to real HW value 2022-08-25 12:07:56 +02:00
pci-driver.c PCI/PM: Drain runtime-idle callbacks before driver removal 2024-04-03 15:28:26 +02:00
pci-label.c PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions 2021-06-03 22:14:47 -05:00
pci-mid.c PCI: PM: Do not use pci_platform_pm_ops for Intel MID PM 2021-09-27 17:13:21 +02:00
pci-pf-stub.c PCI/IOV: Simplify pci-pf-stub with module_pci_driver() 2020-09-17 12:40:20 -05:00
pci-stub.c PCI: pci_stub: Set driver_managed_dma 2022-04-28 15:32:20 +02:00
pci-sysfs.c PCI: Add 'reset_subordinate' to reset hierarchy below bridge 2024-12-14 20:00:14 +01:00
pci.c PCI: Add 'reset_subordinate' to reset hierarchy below bridge 2024-12-14 20:00:14 +01:00
pci.h PCI: Add 'reset_subordinate' to reset hierarchy below bridge 2024-12-14 20:00:14 +01:00
probe.c Revert "PCI: Use preserve_config in place of pci_flags" 2025-01-23 17:21:18 +01:00
proc.c PCI: Remove pci_mmap_page_range() wrapper 2022-07-29 12:08:44 -05:00
quirks.c PCI: Add ACS quirk for Broadcom BCM5760X NIC 2024-12-27 13:58:42 +01:00
remove.c PCI: Create device tree node for bridge 2023-08-22 14:56:09 -05:00
rom.c PCI: Prefer 'unsigned int' over bare 'unsigned' 2021-10-27 13:41:22 -05:00
search.c PCI: Add pci_get_base_class() helper 2024-08-11 12:47:15 +02:00
setup-bus.c PCI: Fix resource double counting on remove & rescan 2024-08-03 08:53:55 +02:00
setup-irq.c PCI: Tidy comments 2021-09-28 13:43:17 -05:00
setup-res.c PCI: Fix printk field formatting 2023-08-25 08:15:08 -05:00
slot.c PCI: Fix use-after-free of slot->bus on hot remove 2024-12-09 10:32:44 +01:00
syscall.c PCI: Use consistent put_user() pointer types 2023-08-25 08:15:13 -05:00
vc.c PCI: Fix kerneldoc warnings 2020-08-05 18:23:14 -05:00
vgaarb.c PCI/VGA: Fix typos 2023-08-24 13:27:47 -05:00
vpd.c PCI/VPD: Add runtime power management to sysfs interface 2023-08-11 14:19:16 -05:00
xen-pcifront.c x86: always initialize xen-swiotlb when xen-pcifront is enabling 2023-07-31 17:54:27 +02:00