On Fri, Nov 03, 2023 at 02:07:55PM -0500, Mario Limonciello wrote: > The `is_thunderbolt` bit has been used to indicate that a PCIe device > contained the Intel VSEC which is used by various parts of the kernel > to change behavior. To later allow usage with USB4 controllers as well, > rename this to `is_tunneled`. This doesn't seem to make sense. is_thunderbolt indicates that a device is part of a Thunderbolt controller. See the code comment: > - unsigned int is_thunderbolt:1; /* Thunderbolt controller */ A Thunderbolt controller is not necessarily tunneled. The PCIe switch, NHI and XHCI of the Thunderbolt host controller are not tunneled at all. Thanks, Lukas