Re: [PATCH v4 0/2] PCI: Init RCB from pci_configure_device and fix program_hpx_type2

[Bjorn Helgaas <helgaas@kernel.org>]

On Thu, Jan 29, 2026 at 06:52:31PM +0100, Håkon Bugge wrote:
> 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.
> 
> The programming of the device's RCB is constrained to the device types
> where it is applicable and also skips VFs. If the Root Port's RCB
> cannot be determined, we also skip the programming of the device's
> RCB.
> 
> Then, we program the device's RCB according to the Root Port's setting.
> 
> Håkon Bugge (2):
>   PCI: Initialize RCB from pci_configure_device()
>   PCI/ACPI: Restrict program_hpx_type2() to AER bits
> 
>  drivers/pci/pci-acpi.c | 65 ++++++++++++++++++------------------------
>  drivers/pci/pci.h      |  3 ++
>  drivers/pci/pcie/aer.c |  3 --
>  drivers/pci/probe.c    | 33 +++++++++++++++++++++
>  4 files changed, 63 insertions(+), 41 deletions(-)

Applied to pci/enumeration for v6.20.

Thanks for your patience and persistence, I think this all looks great!