Hello, > LS7A chipset can be used as a downstream bridge which connected to a > high-level host bridge. In this case DEV_LS7A_PCIE_PORT5 is used as the > upward port. We should always enable MSI caps of this port, otherwise > downstream devices cannot use MSI. Applied to controller/loongson, thank you! [1/1] PCI/DPC: Fix use-after-free on concurrent DPC and hot-removal https://git.kernel.org/pci/pci/c/b69d24a763b Krzysztof