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(-)
(limited to 'src/user/app/netstack')
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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