From ca080278ff9b90b51acc731f562d3fd6f18ecb34 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Mon, 22 Aug 2022 14:17:46 +0200
Subject: user/net: fix ip checksum calculation

---
 src/user/app/netstack/util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/user/app/netstack/util.c b/src/user/app/netstack/util.c
index 7c484f3..9981aa3 100644
--- a/src/user/app/netstack/util.c
+++ b/src/user/app/netstack/util.c
@@ -25,7 +25,7 @@ uint16_t ip_checksum(const uint8_t *buf, size_t len) {
 		buf += 2; len -= 2;
 	}
 	if (len) c += (*buf) << 8;
-	while (c >= 0xFFFF)
+	while (c > 0xFFFF)
 		c = (c & 0xFFFF) + (c >> 16);
 	return ~c;
 }
-- 
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