On Tue, Aug 24, 2021 at 2:21 PM Joerg Roedel [off-list ref] wrote:

From: Joerg Roedel <redacted>

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