AXI_DMAC_SG_UNUSED
if (sg->hw->id != AXI_DMAC_SG_UNUSED) {
if (sg->hw->id == AXI_DMAC_SG_UNUSED)
if (sg->hw->id == AXI_DMAC_SG_UNUSED) /* Not yet submitted */
sg->hw->id = AXI_DMAC_SG_UNUSED;
hws[i].id = AXI_DMAC_SG_UNUSED;