can: raw: add support for SO_TXTIME/SCM_TXTIME
[ Upstream commit 51a0d5e5 ] This patch calls into sock_cmsg_send() to parse the user supplied control information into a struct sockcm_cookie. Then assign the requested transmit time to the skb. This makes it possible to use the Earliest TXTIME First (ETF) packet scheduler with the CAN_RAW protocol. The user can send a CAN_RAW frame with a TXTIME and the kernel (with the ETF scheduler) will take care of sending it to the network interface. Link: https://lore.kernel.org/all/20220502091946.1916211-3-mkl@pengutronix.de Acked-by:Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Stable-dep-of: 7f6ca95d ("net: Implement missing getsockopt(SO_TIMESTAMPING_NEW)") Signed-off-by:
Sasha Levin <sashal@kernel.org>
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ba80ff7a
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