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Most CAN controllers have a support for ignoring ACK absence. Some of them refer to this feature as a self test mode (e. g. SJA1000) and some include it as a part of a loopback mode (e. g. MCP2510). Setting the introduced flag via netlink should make CAN controller perform a successful transmission, even if there is no acknowledgement (dominant ACK bit) received. Signed-off-by: Nikita Edward Baruzdin <[email protected]> Acked-by: Oliver Hartkopp <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]>