MPLS routing code relies on sysctl to work, so let it select PROC_SYSCTL.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 config MPLS_ROUTING
        tristate "MPLS: routing support"
        depends on NET_IP_TUNNEL || NET_IP_TUNNEL=n
+       select PROC_SYSCTL
        ---help---
         Add support for forwarding of mpls packets.