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Diffstat (limited to 'sys/netinet/tcp_input.c')
-rw-r--r--sys/netinet/tcp_input.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c
index 4bc42aea040f..0e7ceefb7ff2 100644
--- a/sys/netinet/tcp_input.c
+++ b/sys/netinet/tcp_input.c
@@ -188,7 +188,9 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, abc_l_var, CTLFLAG_VNET | CTLFLAG_RW,
&VNET_NAME(tcp_abc_l_var), 2,
"Cap the max cwnd increment during slow-start to this number of segments");
-static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, ecn, CTLFLAG_RW, 0, "TCP ECN");
+static SYSCTL_NODE(_net_inet_tcp, OID_AUTO, ecn,
+ CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
+ "TCP ECN");
VNET_DEFINE(int, tcp_do_ecn) = 2;
SYSCTL_INT(_net_inet_tcp_ecn, OID_AUTO, enable, CTLFLAG_VNET | CTLFLAG_RW,