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Oliver Hartkopp b184a8fa7d can: isotp: support MSG_TRUNC flag when reading from socket

[ Upstream commit 42bf50a179 ]

When providing the MSG_TRUNC flag via recvmsg() syscall the return value
provides the real length of the packet or datagram, even when it was longer
than the passed buffer.

Fixes: e057dd3fc2 ("can: add ISO 15765-2:2016 transport protocol")
Link: https://github.com/linux-can/can-utils/issues/347#issuecomment-1065932671
Link: https://lore.kernel.org/all/20220316164258.54155-3-socketcan@hartkopp.net
Suggested-by: Derek Will <derekrobertwill@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-04-08 14:23:41 +02:00

j1939

net-timestamp: convert sk->sk_tskey to atomic_t

2022-03-02 11:48:01 +01:00

af_can.c

net: introduce CAN specific pointer in the struct net_device

2021-02-24 14:32:15 -08:00

af_can.h

can: introduce CAN midlayer private and allocate it automatically

2019-09-04 13:29:14 +02:00

bcm.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net