dhcpcd: Simplify the link handling even more

Move the IS_LINK_UP macro to if_is_link_up function to reduce
binary size.
Rather than DHCPCD_LINK option controlling the carrier state,
use it in if_is_link_up to determine the outcome.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/if.h b/src/if.h
index fc046820..8474deb7 100644
--- a/src/if.h
+++ b/src/if.h
@@ -146,6 +146,7 @@ int if_getflags(struct interface *);
 int if_setflag(struct interface *, short, short);
 #define if_up(ifp) if_setflag((ifp), (IFF_UP | IFF_RUNNING), 0)
 #define if_down(ifp) if_setflag((ifp), 0, IFF_UP);
+bool if_is_link_up(const struct interface *);
 bool if_valid_hwaddr(const uint8_t *, size_t);
 struct if_head *if_discover(struct dhcpcd_ctx *, struct ifaddrs **,
     int, char * const *);