From 24a2d43d8886f5a29c3cf108927f630c545a9a38 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 27 Sep 2014 09:50:55 -0700
Subject: [PATCH] ipv4: rename ip_options_echo to __ip_options_echo()

ip_options_echo() assumes struct ip_options is provided in &IPCB(skb)->opt
Lets break this assumption, but provide a helper to not change all call points.

ip_send_unicast_reply() gets a new struct ip_options pointer.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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