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@xxxxxxxxxxxxxx>
---
include/linux/can/core.h | 1 +
net/can/af_can.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
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)
{
--
2.24.0.rc1
