native_ltr 918 drivers/acpi/pci_root.c host_bridge->native_ltr = 0; native_ltr 599 drivers/pci/probe.c bridge->native_ltr = 1; native_ltr 2053 drivers/pci/probe.c if (!host->native_ltr) native_ltr 511 include/linux/pci.h unsigned int native_ltr:1; /* OS may use PCIe LTR */