worker_thread –> process_one_work –> pciehp_power_thread –>

pciehp_ctrl.c

pciehp_enable_slot –> board_added –>

pciehp_pci.c

pciehp_configure_device –>

pci/bus.c

pci_bus_add_devices –> pci_bus_add_device –>

dd.c

device_attach –> __device_attach –> bus_for_each_drv –> __device_attach_driver –> driver_probe_device –> really_probe –>call_driver_probe –>

pci-driver.c

pci_device_probe –> pci_call_probe –> local_pci_probe –>

virtio_pci_common.c

virtio_pci_probe –>

virtio.c

register_virtio_device –>

core.c

device_add –>

base/bus.c

bus_probe_device –>

dd.c

device_initial_probe –> __device_attach –> bus_for_each_drv –> __device_attach_driver –> driver_probe_device –> really_probe –>call_driver_probe –>

virtio.c

virtio_dev_probe –>

virtio_net.c

virtnet_probe (网卡设备驱动加载的入口)

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