net: Convert net_ratelimit uses to net_<level>_ratelimited

Standardize the net core ratelimited logging functions.

Coalesce formats, align arguments.
Change a printk then vprintk sequence to use printf extension %pV.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 078d039..4cf55ae 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -723,12 +723,10 @@
 				      NULL, NULL, skb);
 
 	if (genhash || memcmp(hash_location, newhash, 16) != 0) {
-		if (net_ratelimit()) {
-			printk(KERN_INFO "MD5 Hash %s for [%pI6c]:%u->[%pI6c]:%u\n",
-			       genhash ? "failed" : "mismatch",
-			       &ip6h->saddr, ntohs(th->source),
-			       &ip6h->daddr, ntohs(th->dest));
-		}
+		net_info_ratelimited("MD5 Hash %s for [%pI6c]:%u->[%pI6c]:%u\n",
+				     genhash ? "failed" : "mismatch",
+				     &ip6h->saddr, ntohs(th->source),
+				     &ip6h->daddr, ntohs(th->dest));
 		return 1;
 	}
 	return 0;