6c7623d07 ("netlink: Add support to fetch default gateway from multipath
routes") inadvertently introduced a new cppcheck warning for a variable
which could be a const pointer but isn't.  This occurs with
cppcheck-2.13.0-1.fc39.x86_64 in Fedora 39 at least.

Fixes: 6c7623d07 ("netlink: Add support to fetch default gateway from multipath
routes")

Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
 netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/netlink.c b/netlink.c
index f0b04cb1..9e7cccb4 100644
--- a/netlink.c
+++ b/netlink.c
@@ -274,7 +274,7 @@ unsigned int nl_get_ext_if(int s, sa_family_t af)
 			if (rta->rta_type == RTA_OIF) {
 				ifi = *(unsigned int *)RTA_DATA(rta);
 			} else if (rta->rta_type == RTA_MULTIPATH) {
-				struct rtnexthop *rtnh;
+				const struct rtnexthop *rtnh;
 
 				rtnh = (struct rtnexthop *)RTA_DATA(rta);
 				ifi = rtnh->rtnh_ifindex;
-- 
2.43.0