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

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

[Zhang Changzhong]

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

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
---
 net/can/j1939/transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index c3946c3..4113229 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -1869,7 +1869,7 @@ static void j1939_xtp_rx_dat_one(struct j1939_session *session,
 		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);
-- 
2.9.5

Re: [PATCH net] can: j1939: j1939_xtp_rx_dat_one(): fix rxtimer value between consecutive TP.DT to 750ms

[Oleksij Rempel]

On Tue, Jul 06, 2021 at 07:00:08PM +0800, Zhang Changzhong wrote:
> For receive side, the max time interval between two consecutive TP.DT
> should be 750ms.
> 
> Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>

ACK,
according to: SAE-J1939-21: T1 time is 750ms
according to: ISO 11783-3: T1 time is <=750ms

Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>

> ---
>  net/can/j1939/transport.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
> index c3946c3..4113229 100644
> --- a/net/can/j1939/transport.c
> +++ b/net/can/j1939/transport.c
> @@ -1869,7 +1869,7 @@ static void j1939_xtp_rx_dat_one(struct j1939_session *session,
>  		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);
> -- 
> 2.9.5
> 
> 
> 

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