From 16a72ee3c5597a95878227d02f5481378e38d114 Mon Sep 17 00:00:00 2001
From: coderofstuff <114628839+coderofstuff@users.noreply.github.com>
Date: Sun, 7 Jan 2024 00:12:11 -0700
Subject: [PATCH] Saturating sub for unknown tx limit

---
 protocol/flows/src/v5/txrelay/flow.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/protocol/flows/src/v5/txrelay/flow.rs b/protocol/flows/src/v5/txrelay/flow.rs
index 88fb7b531..b4d86b441 100644
--- a/protocol/flows/src/v5/txrelay/flow.rs
+++ b/protocol/flows/src/v5/txrelay/flow.rs
@@ -146,7 +146,7 @@ impl RelayTransactionsFlow {
         let curr_p2p_tps = 1000 * snapshot_delta.low_priority_tx_counts / (snapshot_delta.elapsed_time.as_millis().max(1) as u64);
         let overage = if should_throttle && curr_p2p_tps > MAX_TPS_THRESHOLD { curr_p2p_tps - MAX_TPS_THRESHOLD } else { 0 };
 
-        let limit = MAX_TPS_THRESHOLD - overage;
+        let limit = MAX_TPS_THRESHOLD.saturating_sub(overage);
 
         for transaction_id in transaction_ids {
             if let Some(req) = self.ctx.try_adding_transaction_request(transaction_id) {