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/sunrpc/svc.c b/net/sunrpc/svc.c
index 4153846..017c011 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1041,23 +1041,21 @@
  * Printk the given error with the address of the client that caused it.
  */
 static __printf(2, 3)
-int svc_printk(struct svc_rqst *rqstp, const char *fmt, ...)
+void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...)
 {
+	struct va_format vaf;
 	va_list args;
-	int 	r;
 	char 	buf[RPC_MAX_ADDRBUFLEN];
 
-	if (!net_ratelimit())
-		return 0;
-
-	printk(KERN_WARNING "svc: %s: ",
-		svc_print_addr(rqstp, buf, sizeof(buf)));
-
 	va_start(args, fmt);
-	r = vprintk(fmt, args);
-	va_end(args);
 
-	return r;
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	net_warn_ratelimited("svc: %s: %pV",
+			     svc_print_addr(rqstp, buf, sizeof(buf)), &vaf);
+
+	va_end(args);
 }
 
 /*