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

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Date:   Tue, 24 Aug 2021 14:20:50 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>
Cc:     linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org, joro@...tes.org, jroedel@...e.de
Subject: [PATCH v3 0/4] PCI/ACPI: Simplify PCIe _OSC feature negotiation

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(-)

-- 
2.32.0