PCIEM_CTL2_LTR_ENABLE
#define PCI_EXP_DEVCTL2_LTR_EN PCIEM_CTL2_LTR_ENABLE
sc->sc_ltr_enabled = (cap & PCIEM_CTL2_LTR_ENABLE) ? 1 : 0;
if (cap & PCIEM_CTL2_LTR_ENABLE)
if (cap & PCIEM_CTL2_LTR_ENABLE)