arm_gic_intr
int arm_gic_intr(void *);
if (intr_pic_claim_root(dev, xref, arm_gic_intr, sc, INTR_ROOT_IRQ) != 0) {
if (intr_pic_claim_root(dev, xref, arm_gic_intr, sc, INTR_ROOT_IRQ)
arm_gic_intr, NULL, sc, &sc->base.gic_intrhand)) {