pci_if.h vs pcivar.h

[Chuck Tuffli]

I'm stumbling through adding a new PCI interface function and wanted
to find out the preferred way to do prototypes. Is there a preference
between (e.g.)
#include "pci_if.h"
. ..
PCI_ENABLE_BUSMASTER(...);
and

#include <bus/pci/pcivar.h>
. ..
pci_enable_busmaster(...);
i.e. should I also add an inline function in pcivar.h that wraps the
inline function from pci_if.h?
TIA.

---chuck