linux-kernel - Re: [PATCH v12 0/5] Simplify PCIe native ownership

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Message-ID: <b1cb1ad6-e047-8c7a-0abe-b9feee844e59@linux.intel.com>
Date:   Wed, 25 Nov 2020 19:48:27 -0800
From:   "Kuppuswamy, Sathyanarayanan" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     ashok.raj@...el.com, knsathya@...nel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH v12 0/5] Simplify PCIe native ownership



On 11/25/20 5:18 PM, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> This is Sathy's work with a few tweaks on top.
> 
> I dropped the DPC pcie_ports_dpc_native changes for now just because I
> haven't had time to understand it all.  We currently ignore the
> OSC_PCI_EXPRESS_DPC_CONTROL bit, which seems wrong.  We might want to start
> looking at it, but we should try to make that a separate patch that's as
> small as possible.
Along with above patch, you also left following two cleanup patches. Is this
intentional? Following fixes have no dependency on pcie_ports_dpc_native change.

[PATCH v11 4/5] PCI/portdrv: Remove redundant pci_aer_available() check in DPC enable logic
[PATCH v11 5/5] PCI/DPC: Move AER/DPC dependency checks out of DPC driver
> 
> Changes since v11:
>   * Add bugfix for DPC with no AER Capability
>   * Split OSC_OWNER trivial changes from pcie_ports_native changes
>   * Temporarily drop pcie_ports_dpc_native changes
> 
> v11 posting: https://lore.kernel.org/r/cover.1603766889.git.sathyanarayanan.kuppuswamy@linux.intel.com
> 
> Bjorn Helgaas (2):
>    PCI/DPC: Ignore devices with no AER Capability
>    PCI/ACPI: Centralize pci_aer_available() checking
> 
> Kuppuswamy Sathyanarayanan (3):
>    PCI: Assume control of portdrv-related features only when portdrv
>      enabled
>    PCI/ACPI: Tidy _OSC control bit checking
>    PCI/ACPI: Centralize pcie_ports_native checking
> 
>   drivers/acpi/pci_root.c           | 49 ++++++++++++++++++++++++-------
>   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_core.c   |  9 ++----
>   drivers/pci/probe.c               |  6 ++--
>   7 files changed, 50 insertions(+), 24 deletions(-)
> 

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer