From f6ad72a5b215bc5b2d8df86cd537bf1c0f468108 Mon Sep 17 00:00:00 2001
From: zhangchujun <zhangchujun@cmss.chinamobile.com>
Date: Wed, 30 Oct 2024 13:33:58 +0800
Subject: [PATCH] Fix calculation of minimum in colo_compare_tcp

GitHub's CodeQL reports a critical error which is fixed by using the MIN macro:

    Unsigned difference expression compared to zero

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Cc: qemu-stable@nongnu.org
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: zhangchujun <zhangchujun_yewu@cmss.chinamobile.com>
---
 net/colo-compare.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/colo-compare.c b/net/colo-compare.c
index 7f9e6f89ce..d4e51cb306 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -413,8 +413,7 @@ static void colo_compare_tcp(CompareState *s, Connection *conn)
      * can ensure that the packet's payload is acknowledged by
      * primary and secondary.
     */
-    uint32_t min_ack = conn->pack - conn->sack > 0 ?
-                       conn->sack : conn->pack;
+    uint32_t min_ack = MIN(conn->pack, conn->sack);
 
 pri:
     if (g_queue_is_empty(&conn->primary_list)) {
-- 
2.41.0.windows.1