linux-kernel - [PATCH 5.10 12/67] can: j1939: j1939_xtp_rx_dat_one(): fix rxtimer value between consecutive TP.DT to 750ms

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Message-Id: <20210802134339.433892557@linuxfoundation.org>
Date:   Mon,  2 Aug 2021 15:44:35 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Zhang Changzhong <zhangchangzhong@...wei.com>,
        Oleksij Rempel <o.rempel@...gutronix.de>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH 5.10 12/67] can: j1939: j1939_xtp_rx_dat_one(): fix rxtimer value between consecutive TP.DT to 750ms

From: Zhang Changzhong <zhangchangzhong@...wei.com>

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@huawei.com
Cc: linux-stable <stable@...r.kernel.org>
Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>
Acked-by: Oleksij Rempel <o.rempel@...gutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 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);