linux-kernel - [PATCH v2 0/2] PCI: Init RCB from pci_configure_device and fix program_hpx

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Message-ID: <20260121113544.4163457-1-haakon.bugge@oracle.com>
Date: Wed, 21 Jan 2026 12:35:39 +0100
From: Håkon Bugge <haakon.bugge@...cle.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Johannes Thumshirn <morbidrsa@...il.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: [PATCH v2 0/2] PCI: Init RCB from pci_configure_device and fix program_hpx_type2

This series add the initialization of the Link Control register's RCB
to pci_configure_rcb() called from pci_configure_device() and also
cleans up the incorrect program_hpx_type2():

1. It should only be called when we own the PCIe native hotplug and
   not the AER ownership
2. It should only manipulate the AER-bits

In addition, the second commit adds a warning if the _HPX type2
record attempts to modify the Link Control register.

Håkon Bugge (2):
  PCI: Initialize RCB from pci_configure_device
  PCI/ACPI: Confine program_hpx_type2 to the AER bits

 drivers/pci/pci-acpi.c | 61 +++++++++++++++++++-----------------------
 drivers/pci/pci.h      |  3 +++
 drivers/pci/pcie/aer.c |  3 ---
 drivers/pci/probe.c    | 27 +++++++++++++++++++
 4 files changed, 57 insertions(+), 37 deletions(-)

--
2.43.5