linux-kernel - Re: [PATCH v3 0/4] PCI/ACPI: Simplify PCIe

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Date:   Tue, 28 Sep 2021 16:21:19 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, linux-pci@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        jroedel@...e.de
Subject: Re: [PATCH v3 0/4] PCI/ACPI: Simplify PCIe _OSC feature negotiation

On Tue, Aug 24, 2021 at 02:20:50PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <jroedel@...e.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.
> 
> Please review.
> 
> Thanks,
> 
> 	Joerg
> 
> 
> 
> 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(-)

Applied with Rafael's reviewed-by to pci/acpi for v5.16, thanks!