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Date:   Thu, 12 Mar 2020 08:33:51 +0530
From:   Martin Varghese <>
Cc:     Martin Varghese <>
Subject: [PATCH net-next v2] bareudp: Fixed bareudp receive handling

From: Martin Varghese <>

Reverted commit "2baecda bareudp: remove unnecessary udp_encap_enable() in

An explicit call to udp_encap_enable is needed as the setup_udp_tunnel_sock
does not call udp_encap_enable if the if the socket is of type v6.

Bareudp device uses v6 socket to receive v4 & v6 traffic

CC: Taehee Yoo <>
Fixes: 2baecda37f4e ("bareudp: remove unnecessary udp_encap_enable() in bareudp_socket_create()")
Signed-off-by: Martin Varghese <>
Changes in v2:
    - Add Comments in the code.

 drivers/net/bareudp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/bareudp.c b/drivers/net/bareudp.c
index 71a2f48..cc0703c 100644
--- a/drivers/net/bareudp.c
+++ b/drivers/net/bareudp.c
@@ -250,6 +250,12 @@ static int bareudp_socket_create(struct bareudp_dev *bareudp, __be16 port)
 	tunnel_cfg.encap_destroy = NULL;
 	setup_udp_tunnel_sock(bareudp->net, sock, &tunnel_cfg);
+	/* As the setup_udp_tunnel_sock does not call udp_encap_enable if the
+	 * socket type is v6 an explicit call to udp_encap_enable is needed.
+	 */
+	if (sock->sk->sk_family == AF_INET6)
+		udp_encap_enable();
 	rcu_assign_pointer(bareudp->sock, sock);
 	return 0;

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