net: rtm_to_fib6_config() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c312ad4..be5f7a1 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4143,14 +4143,19 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
 
        err = -EINVAL;
        rtm = nlmsg_data(nlh);
-       memset(cfg, 0, sizeof(*cfg));
 
-       cfg->fc_table = rtm->rtm_table;
-       cfg->fc_dst_len = rtm->rtm_dst_len;
-       cfg->fc_src_len = rtm->rtm_src_len;
-       cfg->fc_flags = RTF_UP;
-       cfg->fc_protocol = rtm->rtm_protocol;
-       cfg->fc_type = rtm->rtm_type;
+       *cfg = (struct fib6_config){
+               .fc_table = rtm->rtm_table,
+               .fc_dst_len = rtm->rtm_dst_len,
+               .fc_src_len = rtm->rtm_src_len,
+               .fc_flags = RTF_UP,
+               .fc_protocol = rtm->rtm_protocol,
+               .fc_type = rtm->rtm_type,
+
+               .fc_nlinfo.portid = NETLINK_CB(skb).portid,
+               .fc_nlinfo.nlh = nlh,
+               .fc_nlinfo.nl_net = sock_net(skb->sk),
+       };
 
        if (rtm->rtm_type == RTN_UNREACHABLE ||
            rtm->rtm_type == RTN_BLACKHOLE ||
@@ -4166,10 +4171,6 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
 
        cfg->fc_flags |= (rtm->rtm_flags & RTNH_F_ONLINK);
 
-       cfg->fc_nlinfo.portid = NETLINK_CB(skb).portid;
-       cfg->fc_nlinfo.nlh = nlh;
-       cfg->fc_nlinfo.nl_net = sock_net(skb->sk);
-
        if (tb[RTA_GATEWAY]) {
                cfg->fc_gateway = nla_get_in6_addr(tb[RTA_GATEWAY]);
                cfg->fc_flags |= RTF_GATEWAY;