genetlink: optimize ctrl_dumpfamily()

there is a unnecessary test which can be replaced by a good initialization in
the 'for' statement

Noticed by Serge E. Hallyn <serue@us.ibm.com>

Signed-off-by: Samir Bellabes <sam@synack.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index d07ecda..a4b6e14 100644 (file)
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -681,9 +681,7 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
        int chains_to_skip = cb->args[0];
        int fams_to_skip = cb->args[1];
 
-       for (i = 0; i < GENL_FAM_TAB_SIZE; i++) {
-               if (i < chains_to_skip)
-                       continue;
+       for (i = chains_to_skip; i < GENL_FAM_TAB_SIZE; i++) {
                n = 0;
                list_for_each_entry(rt, genl_family_chain(i), family_list) {
                        if (!rt->netnsok && !net_eq(net, &init_net))