MPAM_IFACE_MMIO
*iface = MPAM_IFACE_MMIO;
if (iface == MPAM_IFACE_MMIO) {
msc->iface = MPAM_IFACE_MMIO;
if (msc->iface == MPAM_IFACE_MMIO) {
if (WARN_ON_ONCE(msc->iface != MPAM_IFACE_MMIO))