[NETLINK]: Make netlink_callback->done() optional
Most netlink families make no use of the done() callback, making
it optional gets rid of all unnecessary dummy implementations.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 9bed756..193fd86 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -462,11 +462,6 @@
netlink_broadcast(rtnl, skb, 0, RTNLGRP_LINK, GFP_KERNEL);
}
-static int rtnetlink_done(struct netlink_callback *cb)
-{
- return 0;
-}
-
/* Protected by RTNL sempahore. */
static struct rtattr **rta_buf;
static int rtattr_max;
@@ -533,8 +528,7 @@
goto err_inval;
if ((*errp = netlink_dump_start(rtnl, skb, nlh,
- link->dumpit,
- rtnetlink_done)) != 0) {
+ link->dumpit, NULL)) != 0) {
return -1;
}
rlen = NLMSG_ALIGN(nlh->nlmsg_len);