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-rw-r--r--lib/ipaddr.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ipaddr.h b/lib/ipaddr.h
index c6372f1abb..cd7f79a04e 100644
--- a/lib/ipaddr.h
+++ b/lib/ipaddr.h
@@ -112,7 +112,7 @@ static inline void ipv4_to_ipv4_mapped_ipv6(struct in6_addr *in6,
/*
* convert an ipv4 mapped ipv6 address back to ipv4 address
*/
-static inline void ipv4_mapped_ipv6_to_ipv4(struct in6_addr *in6,
+static inline void ipv4_mapped_ipv6_to_ipv4(const struct in6_addr *in6,
struct in_addr *in)
{
memset(in, 0, sizeof(struct in_addr));