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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Wed, 1 Sep 2021 21:33:20 +0200
Message-ID: <CAJZ5v0jqwgvmRrRts4Nf4ySmrp5gwmv_iJWBh3OjN54ZU+qneQ@mail.gmail.com>
Subject: Re: [PATCH v3 0/4] PCI/ACPI: Simplify PCIe _OSC feature negotiation
To:     Joerg Roedel <joro@8bytes.org>
Cc:     Bjorn Helgaas <bhelgaas@google.com>,
        "Rafael J . Wysocki" <rjw@rjwysocki.net>,
        Len Brown <lenb@kernel.org>,
        Linux PCI <linux-pci@vger.kernel.org>,
        ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Joerg Roedel <jroedel@suse.de>
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On Tue, Aug 24, 2021 at 2:21 PM Joerg Roedel <joro@8bytes.org> wrote:
>
> From: Joerg Roedel <jroedel@suse.de>
>
> Hi,
>
> here is the third version of my patches to simplify the _OSC
> negotiation of PCIe features between Linux and the firmware.
>
> This version is a complete rewrite, so there is no changelog to the
> previous version. Patches 1-3 are cleanups and small restructurings of
> the code as a preparation for patch 4.
>
> The last patch gets rid of the dedicated _OSC query to check for _OSC
> support and merges that functionality into acpi_pci_osc_control_set().
>
> This allows to simplify and/or remove other functions and consilidate
> error handling in negotiate_os_control().
>
> I have tested the patches with and without 'pcie_ports=compat' and
> found no regressions on my test machine.

I have reviewed the patches, so if you want me to queue up this
series, please let me know.

Thanks,
Rafael


> Joerg Roedel (4):
>   PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
>   PCI/ACPI: Move supported and control calculations to separaten
>     functions
>   PCI/ACPI: Move _OSC query checks to separate function
>   PCI/ACPI: Check for _OSC support in acpi_pci_osc_control_set()
>
>  drivers/acpi/pci_root.c | 161 +++++++++++++++++++++-------------------
>  include/linux/acpi.h    |   2 -
>  2 files changed, 84 insertions(+), 79 deletions(-)
>
> --
> 2.32.0
>