From 1dd46f9d93380f2f4687ae6d2a98b3f1d88921e1 Mon Sep 17 00:00:00 2001
From: Abtin Keshavarzian <abtink@google.com>
Date: Tue, 28 Jul 2020 10:48:18 -0700
Subject: [PATCH] [posix] fix netif use of IPv6 Prefix Match method (#5305)

---
 src/posix/platform/netif.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/posix/platform/netif.cpp b/src/posix/platform/netif.cpp
index b3942124b..f9c6b1d6a 100644
--- a/src/posix/platform/netif.cpp
+++ b/src/posix/platform/netif.cpp
@@ -292,7 +292,8 @@ static void InitNetaskWithPrefixLength(struct in6_addr *address, uint8_t prefixL
 
 static uint8_t NetmaskToPrefixLength(const struct sockaddr_in6 *netmask)
 {
-    return ot::Ip6::Address::PrefixMatch(netmask->sin6_addr.s6_addr, allOnes, 128);
+    return otIp6PrefixMatch(static_cast<const otIp6Address *>(netmask->sin6_addr.s6_addr),
+                            static_cast<const otIp6Address *>(allOnes));
 }
 #endif