[PATCH 5.4 10/40] can: j1939: j1939_xtp_rx_dat_one(): fix rxtimer value between consecutive TP.DT to 750ms

From: Greg Kroah-Hartman
Date: Mon Aug 02 2021 - 10:00:03 EST


From: Zhang Changzhong <zhangchangzhong@xxxxxxxxxx>

commit c6eea1c8bda56737752465a298dc6ce07d6b8ce3 upstream.

For receive side, the max time interval between two consecutive TP.DT
should be 750ms.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/r/1625569210-47506-1-git-send-email-zhangchangzhong@xxxxxxxxxx
Cc: linux-stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Zhang Changzhong <zhangchangzhong@xxxxxxxxxx>
Acked-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/can/j1939/transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -1869,7 +1869,7 @@ static void j1939_xtp_rx_dat_one(struct
if (!session->transmission)
j1939_tp_schedule_txtimer(session, 0);
} else {
- j1939_tp_set_rxtimeout(session, 250);
+ j1939_tp_set_rxtimeout(session, 750);
}
session->last_cmd = 0xff;
consume_skb(se_skb);