On Mon, Sep 05, 2022 at 11:02:26AM +0300, Mika Westerberg wrote: > Hi, > > The series works around an issue found on some Dell systems where > booting with Thunderbolt/USB4 devices connected the BIOS leaves some of > the PCIe devices unconfigured. If the connected devices that are not > configured have PCIe hotplug ports as well the initial root bus scan > only reserves the minimum amount of resources to them making any > expansion happening later impossible. > > We do already distribute the "spare" resources between hotplug ports on > hot-add but we have not done that upon the initial scan. The first four > patches make the initial root bus scan path to do the same. > > The additional patches are just a small cleanups that can be applied > separately too. > > The related bug: https://bugzilla.kernel.org/show_bug.cgi?id=216000. > > The previous version of the patch series can be found here: > > https://lore.kernel.org/linux-pci/20220816100740.68667-1-mika.westerberg@xxxxxxxxxxxxxxx/ > > Changes from the previous version: > > * Split patch 3 into two: move and then the actual fix as suggested by > Andy. > * Fold the two whitespace fixes into one patch. > * Added tags from Chris and Andy. > > Mika Westerberg (6): > PCI: Fix used_buses calculation in pci_scan_child_bus_extend() > PCI: Pass available buses also when the bridge is already configured > PCI: Move pci_assign_unassigned_root_bus_resources() > PCI: Distribute available resources for root buses too > PCI: Fix whitespace and indentation > PCI: Fix typo in pci_scan_child_bus_extend() > > drivers/pci/probe.c | 13 +- > drivers/pci/setup-bus.c | 290 ++++++++++++++++++++++++---------------- > 2 files changed, 181 insertions(+), 122 deletions(-) Applied to pci/resource for v6.1, thanks, Mika!
