treewide: Make a bunch of pointer variables pointers to const

Sufficiently recent cppcheck (I'm using 2.13.0) seems to have added another
warning for pointer variables which could be pointer to const but aren't.
Use this to make a bunch of variables const pointers where they previously
weren't for no particular reason.

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

1 files changed, 5 insertions, 4 deletions

diff --git a/dhcpv6.c b/dhcpv6.c
index 58171bb..7dcca2a 100644
--- a/dhcpv6.c
+++ b/dhcpv6.c
@@ -426,10 +426,11 @@ 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, *server_id;
-	struct in6_addr *src;
-	struct msg_hdr *mh;
-	struct udphdr *uh;
+	struct opt_hdr *ia, *bad_ia, *client_id;
+	const struct opt_hdr *server_id;
+	const struct in6_addr *src;
+	const struct msg_hdr *mh;
+	const struct udphdr *uh;
 	size_t mlen, n;
 
 	uh = packet_get(p, 0, 0, sizeof(*uh), &mlen);