History log of /linux/drivers/pci/remove.c (Results 101 – 125 of 670)
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# 85ebe5ae 18-May-2021 Tony Lindgren <tony@atomide.com>

Merge branch 'fixes-rc1' into fixes


# d22fe808 17-May-2021 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Time to get back in sync...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


# a4345a7c 17-May-2021 Paolo Bonzini <pbonzini@redhat.com>

Merge tag 'kvmarm-fixes-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.13, take #1

- Fix regression with irqbypass not restarting the guest o

Merge tag 'kvmarm-fixes-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.13, take #1

- Fix regression with irqbypass not restarting the guest on failed connect
- Fix regression with debug register decoding resulting in overlapping access
- Commit exception state on exit to usrspace
- Fix the MMU notifier return values
- Add missing 'static' qualifiers in the new host stage-2 code

show more ...


Revision tags: v5.13-rc2
# fd531024 11-May-2021 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v5.12 fixes. Requested for vmwgfx.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# c55b44c9 11-May-2021 Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-fixes into drm-misc-fixes

Start this new release drm-misc-fixes branch

Signed-off-by: Maxime Ripard <maxime@cerno.tech>


Revision tags: v5.13-rc1
# f96271ce 08-May-2021 Michael Ellerman <mpe@ellerman.id.au>

Merge branch 'master' into next

Merge master back into next, this allows us to resolve some conflicts in
arch/powerpc/Kconfig, and also re-sort the symbols under config PPC so
that they are in alpha

Merge branch 'master' into next

Merge master back into next, this allows us to resolve some conflicts in
arch/powerpc/Kconfig, and also re-sort the symbols under config PPC so
that they are in alphabetical order again.

show more ...


# 57151b50 05-May-2021 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Release OF node when pci_scan_device() fails (Dmit

Merge tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Release OF node when pci_scan_device() fails (Dmitry Baryshkov)
- Add pci_disable_parity() (Bjorn Helgaas)
- Disable Mellanox Tavor parity reporting (Heiner Kallweit)
- Disable N2100 r8169 parity reporting (Heiner Kallweit)
- Fix RCiEP device to RCEC association (Qiuxu Zhuo)
- Convert sysfs "config", "rom", "reset", "label", "index",
"acpi_index" to static attributes to help fix races in device
enumeration (Krzysztof Wilczyński)
- Convert sysfs "vpd" to static attribute (Heiner Kallweit, Krzysztof
Wilczyński)
- Use sysfs_emit() in "show" functions (Krzysztof Wilczyński)
- Remove unused alloc_pci_root_info() return value (Krzysztof
Wilczyński)

PCI device hotplug:
- Fix acpiphp reference count leak (Feilong Lin)

Power management:
- Fix acpi_pci_set_power_state() debug message (Rafael J. Wysocki)
- Fix runtime PM imbalance (Dinghao Liu)

Virtualization:
- Increase delay after FLR to work around Intel DC P4510 NVMe erratum
(Raphael Norwitz)

MSI:
- Convert rcar, tegra, xilinx to MSI domains (Marc Zyngier)
- For rcar, xilinx, use controller address as MSI doorbell (Marc
Zyngier)
- Remove unused hv msi_controller struct (Marc Zyngier)
- Remove unused PCI core msi_controller support (Marc Zyngier)
- Remove struct msi_controller altogether (Marc Zyngier)
- Remove unused default_teardown_msi_irqs() (Marc Zyngier)
- Let host bridges declare their reliance on MSI domains (Marc
Zyngier)
- Make pci_host_common_probe() declare its reliance on MSI domains
(Marc Zyngier)
- Advertise mediatek lack of built-in MSI handling (Thomas Gleixner)
- Document ways of ending up with NO_MSI (Marc Zyngier)
- Refactor HT advertising of NO_MSI flag (Marc Zyngier)

VPD:
- Remove obsolete Broadcom NIC VPD length-limiting quirk (Heiner
Kallweit)
- Remove sysfs VPD size checking dead code (Heiner Kallweit)
- Convert VPF sysfs file to static attribute (Heiner Kallweit)
- Remove unnecessary pci_set_vpd_size() (Heiner Kallweit)
- Tone down "missing VPD" message (Heiner Kallweit)

Endpoint framework:
- Fix NULL pointer dereference when epc_features not implemented
(Shradha Todi)
- Add missing destroy_workqueue() in endpoint test (Yang Yingliang)

Amazon Annapurna Labs PCIe controller driver:
- Fix compile testing without CONFIG_PCI_ECAM (Arnd Bergmann)
- Fix "no symbols" warnings when compile testing with
CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)

APM X-Gene PCIe controller driver:
- Fix cfg resource mapping regression (Dejin Zheng)

Broadcom iProc PCIe controller driver:
- Return zero for success of iproc_msi_irq_domain_alloc() (Pali
Rohár)

Broadcom STB PCIe controller driver:
- Add reset_control_rearm() stub for !CONFIG_RESET_CONTROLLER (Jim
Quinlan)
- Fix use of BCM7216 reset controller (Jim Quinlan)
- Use reset/rearm for Broadcom STB pulse reset instead of
deassert/assert (Jim Quinlan)
- Fix brcm_pcie_probe() error return for unsupported revision (Wei
Yongjun)

Cavium ThunderX PCIe controller driver:
- Fix compile testing (Arnd Bergmann)
- Fix "no symbols" warnings when compile testing with
CONFIG_TRIM_UNUSED_KSYMS (Arnd Bergmann)

Freescale Layerscape PCIe controller driver:
- Fix ls_pcie_ep_probe() syntax error (comma for semicolon)
(Krzysztof Wilczyński)
- Remove layerscape-gen4 dependencies on OF and ARM64, add dependency
on ARCH_LAYERSCAPE (Geert Uytterhoeven)

HiSilicon HIP PCIe controller driver:
- Remove obsolete HiSilicon PCIe DT description (Dongdong Liu)

Intel Gateway PCIe controller driver:
- Remove unused pcie_app_rd() (Jiapeng Chong)

Intel VMD host bridge driver:
- Program IRTE with Requester ID of VMD endpoint, not child device
(Jon Derrick)
- Disable VMD MSI-X remapping when possible so children can use more
MSI-X vectors (Jon Derrick)

MediaTek PCIe controller driver:
- Configure FC and FTS for functions other than 0 (Ryder Lee)
- Add YAML schema for MediaTek (Jianjun Wang)
- Export pci_pio_to_address() for module use (Jianjun Wang)
- Add MediaTek MT8192 PCIe controller driver (Jianjun Wang)
- Add MediaTek MT8192 INTx support (Jianjun Wang)
- Add MediaTek MT8192 MSI support (Jianjun Wang)
- Add MediaTek MT8192 system power management support (Jianjun Wang)
- Add missing MODULE_DEVICE_TABLE (Qiheng Lin)

Microchip PolarFlare PCIe controller driver:
- Make several symbols static (Wei Yongjun)

NVIDIA Tegra PCIe controller driver:
- Add MCFG quirks for Tegra194 ECAM errata (Vidya Sagar)
- Make several symbols const (Rikard Falkeborn)
- Fix Kconfig host/endpoint typo (Wesley Sheng)

SiFive FU740 PCIe controller driver:
- Add pcie_aux clock to prci driver (Greentime Hu)
- Use reset-simple in prci driver for PCIe (Greentime Hu)
- Add SiFive FU740 PCIe host controller driver and DT binding (Paul
Walmsley, Greentime Hu)

Synopsys DesignWare PCIe controller driver:
- Move MSI Receiver init to dw_pcie_host_init() so it is
re-initialized along with the RC in resume (Jisheng Zhang)
- Move iATU detection earlier to fix regression (Hou Zhiqiang)

TI J721E PCIe driver:
- Add DT binding and TI j721e support for refclk to PCIe connector
(Kishon Vijay Abraham I)
- Add host mode and endpoint mode DT bindings for TI AM64 SoC (Kishon
Vijay Abraham I)

TI Keystone PCIe controller driver:
- Use generic config accessors for TI AM65x (K3) to fix regression
(Kishon Vijay Abraham I)

Xilinx NWL PCIe controller driver:
- Add support for coherent PCIe DMA traffic using CCI (Bharat Kumar
Gogada)
- Add optional "dma-coherent" DT property (Bharat Kumar Gogada)

Miscellaneous:
- Fix kernel-doc warnings (Krzysztof Wilczyński)
- Remove unused MicroGate SyncLink device IDs (Jiri Slaby)
- Remove redundant dev_err() for devm_ioremap_resource() failure
(Chen Hui)
- Remove redundant initialization (Colin Ian King)
- Drop redundant dev_err() for platform_get_irq() errors (Krzysztof
Wilczyński)"

* tag 'pci-v5.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (98 commits)
riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC
PCI: fu740: Add SiFive FU740 PCIe host controller driver
dt-bindings: PCI: Add SiFive FU740 PCIe host controller
MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
clk: sifive: Use reset-simple in prci driver for PCIe driver
clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
PCI: brcmstb: Use reset/rearm instead of deassert/assert
ata: ahci_brcm: Fix use of BCM7216 reset controller
reset: add missing empty function reset_control_rearm()
PCI: Allow VPD access for QLogic ISP2722
PCI/VPD: Add helper pci_get_func0_dev()
PCI/VPD: Remove pci_vpd_find_tag() SRDT handling
PCI/VPD: Remove pci_vpd_find_tag() 'offset' argument
PCI/VPD: Change pci_vpd_init() return type to void
PCI/VPD: Make missing VPD message less alarming
PCI/VPD: Remove pci_set_vpd_size()
x86/PCI: Remove unused alloc_pci_root_info() return value
MAINTAINERS: Add Jianjun Wang as MediaTek PCI co-maintainer
PCI: mediatek-gen3: Add system PM support
PCI: mediatek-gen3: Add MSI support
...

show more ...


# bac66f8f 04-May-2021 Bjorn Helgaas <bhelgaas@google.com>

Merge branch 'pci/sysfs'

- Convert sysfs "config", "rom", "reset", "label", "index", "acpi_index" to
static attributes to fix races in device enumeration (Krzysztof
Wilczyński)

- Convert sysfs

Merge branch 'pci/sysfs'

- Convert sysfs "config", "rom", "reset", "label", "index", "acpi_index" to
static attributes to fix races in device enumeration (Krzysztof
Wilczyński)

- Convert sysfs "vpd" to static attribute (Heiner Kallweit, Krzysztof
Wilczyński)

- Use sysfs_emit() in "show" functions (Krzysztof Wilczyński)

* pci/sysfs:
PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions
PCI/sysfs: Rearrange smbios_attr_group and acpi_attr_group
PCI/sysfs: Tidy SMBIOS & ACPI label attributes
PCI/sysfs: Convert "index", "acpi_index", "label" to static attributes
PCI/sysfs: Define SMBIOS label attributes with DEVICE_ATTR*()
PCI/sysfs: Define ACPI label attributes with DEVICE_ATTR*()
PCI/sysfs: Rename device_has_dsm() to device_has_acpi_name()
PCI/sysfs: Convert "vpd" to static attribute
PCI/sysfs: Rename "vpd" attribute accessors
PCI/sysfs: Convert "reset" to static attribute
PCI/sysfs: Convert "rom" to static attribute
PCI/sysfs: Convert "config" to static attribute

show more ...


Revision tags: v5.12, v5.12-rc8
# f42c35ea 16-Apr-2021 Krzysztof Wilczyński <kw@linux.com>

PCI/sysfs: Convert "reset" to static attribute

The "reset" sysfs attribute allows for resetting a PCI function.
Previously it was dynamically created either by pci_bus_add_device() or
the pci_sysfs_

PCI/sysfs: Convert "reset" to static attribute

The "reset" sysfs attribute allows for resetting a PCI function.
Previously it was dynamically created either by pci_bus_add_device() or
the pci_sysfs_init() initcall, but since it doesn't need to be created or
removed dynamically, we can use a static attribute so the device model
takes care of addition and removal automatically.

Convert "reset" to a static attribute and use the .is_visible() callback to
check whether the device supports reset.

Clear reset_fn in pci_stop_dev() instead of pci_remove_capabilities_sysfs()
since we no longer explicitly remove the "reset" sysfs file.

[bhelgaas: commit log]
Suggested-by: Oliver O'Halloran <oohall@gmail.com>
Link: https://lore.kernel.org/r/20210416205856.3234481-4-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

show more ...


Revision tags: v5.12-rc7, v5.12-rc6, v5.12-rc5, v5.12-rc4, v5.12-rc3, v5.12-rc2, v5.12-rc1, v5.12-rc1-dontuse, v5.11, v5.11-rc7, v5.11-rc6, v5.11-rc5, v5.11-rc4, v5.11-rc3, v5.11-rc2, v5.11-rc1
# 4b419325 15-Dec-2020 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 5.11 merge window.


Revision tags: v5.10, v5.10-rc7, v5.10-rc6, v5.10-rc5
# 05909cd9 18-Nov-2020 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v5.9' into next

Sync up with mainline to bring in the latest DTS files.


Revision tags: v5.10-rc4, v5.10-rc3, v5.10-rc2, v5.10-rc1, v5.9, v5.9-rc8, v5.9-rc7, v5.9-rc6, v5.9-rc5, v5.9-rc4
# ead5d1f4 01-Sep-2020 Jiri Kosina <jkosina@suse.cz>

Merge branch 'master' into for-next

Sync with Linus' branch in order to be able to apply fixups
of more recent patches.


Revision tags: v5.9-rc3, v5.9-rc2, v5.9-rc1
# 3b5d1afd 03-Aug-2020 Takashi Iwai <tiwai@suse.de>

Merge branch 'for-next' into for-linus


Revision tags: v5.8, v5.8-rc7, v5.8-rc6, v5.8-rc5, v5.8-rc4
# 98817a84 30-Jun-2020 Thomas Gleixner <tglx@linutronix.de>

Merge tag 'irqchip-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- Fix atomicity of affinity update in the G

Merge tag 'irqchip-fixes-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

- Fix atomicity of affinity update in the GIC driver
- Don't sleep in atomic when waiting for a GICv4.1 RD to respond
- Fix a couple of typos in user-visible messages

show more ...


# 77346a70 30-Jun-2020 Joerg Roedel <jroedel@suse.de>

Merge tag 'v5.8-rc3' into arm/qcom

Linux 5.8-rc3


# 60e9eabf 29-Jun-2020 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Some conflicts with ttm_bo->offset removal, but drm-misc-next needs updating to v5.8.

Signed-off-by: Maarten Lankhorst <maarten.la

Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next

Some conflicts with ttm_bo->offset removal, but drm-misc-next needs updating to v5.8.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

show more ...


Revision tags: v5.8-rc3
# 0f69403d 25-Jun-2020 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next-queued

Catch up with upstream, in particular to get c1e8d7c6a7a6 ("mmap locking
API: convert mmap_sem comments").

Signed-off-by: Jani Nikula <jani.nikula@inte

Merge drm/drm-next into drm-intel-next-queued

Catch up with upstream, in particular to get c1e8d7c6a7a6 ("mmap locking
API: convert mmap_sem comments").

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

show more ...


Revision tags: v5.8-rc2
# 6870112c 17-Jun-2020 Mark Brown <broonie@kernel.org>

Merge tag 'v5.8-rc1' into regulator-5.8

Linux 5.8-rc1


# 07c7b547 16-Jun-2020 Tony Lindgren <tony@atomide.com>

Merge tag 'v5.8-rc1' into fixes

Linux 5.8-rc1


# 4b3c1f1b 16-Jun-2020 Thomas Zimmermann <tzimmermann@suse.de>

Merge v5.8-rc1 into drm-misc-fixes

Beginning a new release cycles for what will become v5.8. Updating
drm-misc-fixes accordingly.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v5.8-rc1
# 8440d4a7 12-Jun-2020 Rob Herring <robh@kernel.org>

Merge branch 'dt/schema-cleanups' into dt/linus


# f77d26a9 11-Jun-2020 Thomas Gleixner <tglx@linutronix.de>

Merge branch 'x86/entry' into ras/core

to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.


# 3925c3bb 06-Jun-2020 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Program MPS for RCiEP devices (Ashok Raj)

- Fi

Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Program MPS for RCiEP devices (Ashok Raj)

- Fix pci_register_host_bridge() device_register() error handling
(Rob Herring)

- Fix pci_host_bridge struct device release/free handling (Rob
Herring)

Resource management:

- Allow resizing BARs for devices on root bus (Ard Biesheuvel)

Power management:

- Reduce Thunderbolt resume time by working around devices that don't
support DLL Link Active reporting (Mika Westerberg)

- Work around a Pericom USB controller OHCI/EHCI PME# defect
(Kai-Heng Feng)

Virtualization:

- Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok
Raj)

- Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner)

- Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven)

Error handling:

- Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership
(Alexandru Gagniuc, Kuppuswamy Sathyanarayanan)

- Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER
events (Kuppuswamy Sathyanarayanan)

- Don't enable AER by default in Kconfig (Bjorn Helgaas)

Peer-to-peer DMA:

- Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher)

ASPM:

- Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng)

Endpoint framework:

- Fix DMA channel release in test (Kunihiko Hayashi)

- Add page size as argument to pci_epc_mem_init() (Lad Prabhakar)

- Add support to handle multiple base for mapping outbound memory
(Lad Prabhakar)

Generic host bridge driver:

- Support building as module (Rob Herring)

- Eliminate pci_host_common_probe wrappers (Rob Herring)

Amlogic Meson PCIe controller driver:

- Don't use FAST_LINK_MODE to set up link (Marc Zyngier)

Broadcom STB PCIe controller driver:

- Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan)

- Fix clk_put() error (Jim Quinlan)

- Fix window register offset (Jim Quinlan)

- Assert fundamental reset on initialization (Nicolas Saenz Julienne)

- Add notify xHCI reset property (Nicolas Saenz Julienne)

- Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas
Saenz Julienne)

- Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas
Saenz Julienne)

Cadence PCIe controller driver:

- Remove "cdns,max-outbound-regions" DT property (replaced by
"ranges") (Kishon Vijay Abraham I)

- Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT
(Kishon Vijay Abraham I)

Marvell Aardvark PCIe controller driver:

- Improve link training (Marek Behún)

- Add PHY support (Marek Behún)

- Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek
Behún)

- Train link immediately after enabling training to work around
detection issues with some cards (Pali Rohár)

- Issue PERST via GPIO to work around detection issues (Pali Rohár)

- Don't blindly enable ASPM L0s (Pali Rohár)

- Replace custom macros by standard linux/pci_regs.h macros (Pali
Rohár)

Microsoft Hyper-V host bridge driver:

- Fix probe failure path to release resource (Wei Hu)

- Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu)

Renesas R-Car PCIe controller driver:

- Fix incorrect programming of OB windows (Andrew Murray)

- Add suspend/resume (Kazufumi Ikeda)

- Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar)

- Add endpoint controller driver (Lad Prabhakar)

- Fix PCIEPAMR mask calculation (Lad Prabhakar)

- Add r8a77961 to DT binding (Yoshihiro Shimoda)

Socionext UniPhier Pro5 controller driver:

- Add endpoint controller driver (Kunihiko Hayashi)

Synopsys DesignWare PCIe controller driver:

- Program outbound ATU upper limit register (Alan Mikhak)

- Fix inner MSI IRQ domain registration (Marc Zyngier)

Miscellaneous:

- Check for platform_get_irq() failure consistently (negative return
means failure) (Aman Sharma)

- Fix several runtime PM get/put imbalances (Dinghao Liu)

- Use flexible-array and struct_size() helpers for code cleanup
(Gustavo A. R. Silva)

- Update & fix issues in bridge emulation of PCIe registers (Jon
Derrick)

- Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc)
(Krzysztof Wilczyński)

- Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)"

* tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
PCI/DPC: Print IRQ number used by port
PCI/AER: Use "aer" variable for capability offset
PCI/AER: Remove redundant dev->aer_cap checks
PCI/AER: Remove redundant pci_is_pcie() checks
PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership
PCI: tegra: Fix runtime PM imbalance on error
PCI: vmd: Filter resource type bits from shadow register
PCI: tegra194: Fix runtime PM imbalance on error
dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
PCI: hv: Use struct_size() helper
PCI: Rename _DSM constants to align with spec
PCI: Avoid FLR for AMD Starship USB 3.0
PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
x86/PCI: Drop unused xen_register_pirq() gsi_override parameter
PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
PCI: dwc: Fix inner MSI IRQ domain registration
PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
...

show more ...


# 8ab064e9 04-Jun-2020 Bjorn Helgaas <bhelgaas@google.com>

Merge branch 'pci/enumeration'

- Fix pci_register_host_bridge() device_register() error handling (Rob
Herring)

- Fix pci_host_bridge struct device release/free handling (Rob Herring)

- P

Merge branch 'pci/enumeration'

- Fix pci_register_host_bridge() device_register() error handling (Rob
Herring)

- Fix pci_host_bridge struct device release/free handling (Rob Herring)

- Program MPS for RCiEP devices (Ashok Raj)

- Inherit PTM settings from Switch Upstream Port so we can enable PTM on
Endpoints (Bjorn Helgaas)

- Add #defines for bridge windows (PCI_BRIDGE_IO_WINDOW,
PCI_BRIDGE_MEM_WINDOW, etc) (Krzysztof Wilczynski)

* pci/enumeration:
pcmcia: Use CardBus window names (PCI_CB_BRIDGE_IO_0_WINDOW etc) when freeing
PCI: Use bridge window names (PCI_BRIDGE_IO_WINDOW etc)
PCI/PTM: Inherit Switch Downstream Port PTM settings from Upstream Port
PCI: Program MPS for RCiEP devices
PCI: Fix pci_host_bridge struct device release/free handling
PCI: Fix pci_register_host_bridge() device_register() error handling

show more ...


Revision tags: v5.7, v5.7-rc7, v5.7-rc6
# 9885440b 14-May-2020 Rob Herring <robh@kernel.org>

PCI: Fix pci_host_bridge struct device release/free handling

The PCI code has several paths where the struct pci_host_bridge is freed
directly. This is wrong because it contains a struct device whic

PCI: Fix pci_host_bridge struct device release/free handling

The PCI code has several paths where the struct pci_host_bridge is freed
directly. This is wrong because it contains a struct device which is
refcounted and should be freed using put_device(). This can result in
use-after-free errors. I think this problem has existed since 2012 with
commit 7b5436635800 ("PCI: add generic device into pci_host_bridge
struct"). It generally hasn't mattered as most host bridge drivers are
still built-in and can't unbind.

The problem is a struct device should never be freed directly once
device_initialize() is called and a ref is held, but that doesn't happen
until pci_register_host_bridge(). There's then a window between allocating
the host bridge and pci_register_host_bridge() where kfree should be used.
This is fragile and requires callers to do the right thing. To fix this, we
need to split device_register() into device_initialize() and device_add()
calls, so that the host bridge struct is always freed by using a
put_device().

devm_pci_alloc_host_bridge() is using devm_kzalloc() to allocate struct
pci_host_bridge which will be freed directly. Instead, we can use a custom
devres action to call put_device().

Link: https://lore.kernel.org/r/20200513223859.11295-2-robh@kernel.org
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

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