dhcpv6: Turn some option headers pointers to const

cppcheck 2.14.2 on Alpine reports:

dhcpv6.c:431:32: style: Variable 'client_id' can be declared as pointer to const [constVariablePointer]
 struct opt_hdr *ia, *bad_ia, *client_id;
                               ^

It's not only 'client_id': we can declare 'ia' as const pointer too.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/dhcpv6.c b/dhcpv6.c
index f2e7307..0523bba 100644
--- a/dhcpv6.c
+++ b/dhcpv6.c
@@ -423,11 +423,11 @@ search:
 int dhcpv6(struct ctx *c, const struct pool *p,
 	   const struct in6_addr *saddr, const struct in6_addr *daddr)
 {
-	struct opt_hdr *ia, *bad_ia, *client_id;
-	const struct opt_hdr *server_id;
+	const struct opt_hdr *client_id, *server_id, *ia;
 	const struct in6_addr *src;
 	const struct msg_hdr *mh;
 	const struct udphdr *uh;
+	struct opt_hdr *bad_ia;
 	size_t mlen, n;
 
 	uh = packet_get(p, 0, 0, sizeof(*uh), &mlen);