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Commit f0e3d068 authored by Mike Waychison's avatar Mike Waychison Committed by David S. Miller
Browse files

tcp: initialize variable ecn_ok in syncookies path 



Using a gcc 4.4.3, warnings are emitted for a possibly uninitialized use
of ecn_ok.

This can happen if cookie_check_timestamp() returns due to not having
seen a timestamp.  Defaulting to ecn off seems like a reasonable thing
to do in this case, so initialized ecn_ok to false.

Signed-off-by: default avatarMike Waychison <mikew@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 56c07271

net/ipv4/syncookies.c

+1 −1
Original line number Diff line number Diff line
@@ -276,7 +276,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, 
	int mss;

	struct rtable *rt;

	__u8 rcv_wscale;

	bool ecn_ok;

	bool ecn_ok = false;



	if (!sysctl_tcp_syncookies || !th->ack || th->rst)

		goto out;

net/ipv6/syncookies.c

+1 −1
Original line number Diff line number Diff line
@@ -165,7 +165,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) 
	int mss;

	struct dst_entry *dst;

	__u8 rcv_wscale;

	bool ecn_ok;

	bool ecn_ok = false;



	if (!sysctl_tcp_syncookies || !th->ack || th->rst)

		goto out;