host_b 328 drivers/pci/p2pdma.c struct pci_host_bridge *host_b = pci_find_host_bridge(b->bus); host_b 330 drivers/pci/p2pdma.c if (host_a == host_b) host_b 334 drivers/pci/p2pdma.c __host_bridge_whitelist(host_b, false))