Building with the attached random configuration file,

drivers/thunderbolt/nhi.c: In function ‘nhi_probe’:
drivers/thunderbolt/nhi.c:541:2: error: implicit declaration of
function ‘pcim_enable_device’ [-Werror=implicit-function-declaration]
  res = pcim_enable_device(pdev);
  ^
drivers/thunderbolt/nhi.c:547:2: error: implicit declaration of
function ‘pci_enable_msi’ [-Werror=implicit-function-declaration]
  res = pci_enable_msi(pdev);
  ^
cc1: some warnings being treated as errors
make[2]: *** [drivers/thunderbolt/nhi.o] Error 1