lnk_cap 23 drivers/pci/pcie/bw_notification.c u32 lnk_cap; lnk_cap 25 drivers/pci/pcie/bw_notification.c ret = pcie_capability_read_dword(dev, PCI_EXP_LNKCAP, &lnk_cap); lnk_cap 26 drivers/pci/pcie/bw_notification.c return (ret == PCIBIOS_SUCCESSFUL) && (lnk_cap & PCI_EXP_LNKCAP_LBNC);