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authorDavid S. Miller <davem@davemloft.net>2010-11-24 11:47:22 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2011-03-02 09:46:46 -0500
commitd9d89091ffe11687f7fa20b7d75b08d9e1dc1421 (patch)
tree8854ff53be778b46dfe78d2de82ca791f372e617
parentf6e5886328bd4f59dbcd18497b8a7eea1a9f2903 (diff)
tcp: Make TCP_MAXSEG minimum more correct.
commit c39508d6f118308355468314ff414644115a07f3 upstream. Use TCP_MIN_MSS instead of constant 64. Reported-by: Min Zhang <mzhang@mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net> Cc: Moritz Muehlenhoff <jmm@debian.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--net/ipv4/tcp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 9d4d60080d05..f0956595006b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2117,7 +2117,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
/* Values greater than interface MTU won't take effect. However
* at the point when this call is done we typically don't yet
* know which interface is going to be used */
- if (val < 64 || val > MAX_TCP_WINDOW) {
+ if (val < TCP_MIN_MSS || val > MAX_TCP_WINDOW) {
err = -EINVAL;
break;
}