f swap u128 for u64

lightning/src/blinded_path/payment.rs

@@ -156,16 +156,16 @@ pub(super) fn blinded_hops<T: secp256k1::Signing + secp256k1::Verification>(
 pub(super) fn compute_payinfo(
 	intermediate_nodes: &[(PublicKey, ForwardTlvs)], payee_tlvs: &ReceiveTlvs
 ) -> Result<BlindedPayInfo, ()> {
-	let mut curr_base_fee: u128 = 0;
-	let mut curr_prop_mil: u128 = 0;
+	let mut curr_base_fee: u64 = 0;
+	let mut curr_prop_mil: u64 = 0;
 	let mut cltv_expiry_delta: u16 = 0;
 	for (_, tlvs) in intermediate_nodes.iter().rev() {
 		// In the future, we'll want to take the intersection of all supported features for the
 		// `BlindedPayInfo`, but there are no features in that context right now.
 		if tlvs.features.requires_unknown_bits() { return Err(()) }
 
-		let next_base_fee = tlvs.payment_relay.fee_base_msat as u128;
-		let next_prop_mil = tlvs.payment_relay.fee_proportional_millionths as u128;
+		let next_base_fee = tlvs.payment_relay.fee_base_msat as u64;
+		let next_prop_mil = tlvs.payment_relay.fee_proportional_millionths as u64;
 		// Use integer arithmetic to compute `ceil(a/b)` as `(a+b-1)/b`
 		// ((next_base_fee * 1_000_000 + (curr_base_fee * (1_000_000 + next_prop_mil))) + 1_000_000 - 1) / 1_000_000
 		curr_base_fee = next_prop_mil.checked_add(1_000_000)