BIT_APP_UPCHG
if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
changes |= BIT_APP_UPCHG;
changes |= (BIT_PG_TX | BIT_PFC | BIT_APP_UPCHG);
u8 mask = BIT_PFC | BIT_PG_TX | BIT_PG_RX | BIT_APP_UPCHG;
changes |= (BIT_PG_RX | BIT_PFC | BIT_APP_UPCHG);