f comment on how our_funding_satoshis is derived from our_funding_inputs

Author: dunxen

lightning/src/ln/channel.rs

@@ -3695,6 +3695,10 @@ pub(super) struct DualFundingChannelContext {
 	/// The feerate set by the initiator to be used for the funding transaction.
 	pub funding_feerate_sat_per_1000_weight: u32,
 	/// The funding inputs we will be contributing to the channel.
+	///
+	/// Note that the `our_funding_satoshis` field is equal to the total value of `our_funding_inputs`
+	/// minus any fees paid for our contributed weight. This means that change will never be generated
+	/// and the maximum value possible will go towards funding the channel.
 	pub our_funding_inputs: Vec<(TxIn, TransactionU16LenLimited)>,
 }