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authorOleksij Rempel <o.rempel@pengutronix.de>2019-11-07 11:55:42 +0100
committerMarc Kleine-Budde <mkl@pengutronix.de>2019-11-13 10:42:33 +0100
commit975987e7015bb12a482df7f14fd524417d2c8e8f (patch)
treeb5fb648bf539f097cb94e64e33f74f493ed1203c
parent5aa4277d4368c099223bbcd3a9086f3351a12ce9 (diff)
can: af_can: export can_sock_destruct()
In j1939 we need our own struct sock::sk_destruct callback. Export the generic af_can can_sock_destruct() that allows us to chain-call it. Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol") Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
-rw-r--r--include/linux/can/core.h1
-rw-r--r--net/can/af_can.c3
2 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index 8339071ab08b..e20a0cd09ba5 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -65,5 +65,6 @@ extern void can_rx_unregister(struct net *net, struct net_device *dev,
void *data);
extern int can_send(struct sk_buff *skb, int loop);
+void can_sock_destruct(struct sock *sk);
#endif /* !_CAN_CORE_H */
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 5518a7d9eed9..128d37a4c2e0 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -86,11 +86,12 @@ static atomic_t skbcounter = ATOMIC_INIT(0);
/* af_can socket functions */
-static void can_sock_destruct(struct sock *sk)
+void can_sock_destruct(struct sock *sk)
{
skb_queue_purge(&sk->sk_receive_queue);
skb_queue_purge(&sk->sk_error_queue);
}
+EXPORT_SYMBOL(can_sock_destruct);
static const struct can_proto *can_get_proto(int protocol)
{