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SubjectRe: [PATCH v9 0/5] Simplify PCIe native ownership detection logic
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Hi Bjorn,

On 9/27/20 6:11 PM, Kuppuswamy Sathyanarayanan wrote:
> Currently, PCIe capabilities ownership status is detected by
> verifying the status of pcie_ports_native, pcie_ports_dpc_native
> and _OSC negotiated results (cached in struct pci_host_bridge
> ->native_* members). But this logic can be simplified, and we can
> use only struct pci_host_bridge ->native_* members to detect it.
>
Did you get this patch set or do I need to send it again?
> This patchset removes the distributed checks for pcie_ports_native,
> pcie_ports_dpc_native parameters.
>
> Changes since v8:
> * Simplified setting _OSC ownwership logic
> * Moved bridge->native_ltr out of #ifdef CONFIG_PCIEPORTBUS.
>
> Changes since v7:
> * Fixed "fix array_size.cocci warnings".
>
> Changes since v6:
> * Created new patch for CONFIG_PCIEPORTBUS check in
> pci_init_host_bridge().
> * Added warning message for a case when pcie_ports_native
> overrides _OSC negotiation result.
>
> Changes since v5:
> * Rebased on top of v5.8-rc1
>
> Changes since v4:
> * Changed the patch set title (Original link: https://lkml.org/lkml/2020/5/26/1710)
> * Added AER/DPC dependency logic cleanup fixes.
>
>
> Kuppuswamy Sathyanarayanan (5):
> PCI: Conditionally initialize host bridge native_* members
> ACPI/PCI: Ignore _OSC negotiation result if pcie_ports_native is set.
> ACPI/PCI: Ignore _OSC DPC negotiation result if pcie_ports_dpc_native
> is set.
> PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable
> logic
> PCI/DPC: Move AER/DPC dependency checks out of DPC driver
>
> drivers/acpi/pci_root.c | 37 ++++++++++++++++++++++---------
> drivers/pci/hotplug/pciehp_core.c | 2 +-
> drivers/pci/pci-acpi.c | 3 ---
> drivers/pci/pcie/aer.c | 2 +-
> drivers/pci/pcie/dpc.c | 3 ---
> drivers/pci/pcie/portdrv.h | 2 --
> drivers/pci/pcie/portdrv_core.c | 13 +++++------
> drivers/pci/probe.c | 6 +++--
> include/linux/acpi.h | 2 ++
> include/linux/pci.h | 2 ++
> 10 files changed, 42 insertions(+), 30 deletions(-)
>

--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer

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