On 13.05.2022 11:38:31, Vincent Mailhol wrote:
> > +
> > + /* We shouldn't get here after a hardware fault:
> > + * can_bus_off() calls netif_carrier_off()
> > + */
> > + WARN_ON_ONCE(elm->uart_side_failure);
> > +
> > + if (!elm->tty ||
> > + elm->uart_side_failure ||
> > + elm->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) {
>
> Can the xmit function get called when CAN_CTRLMODE_LISTENONLY is on?
I think yes. You can skip the whole CAN stack by injecting CAN frames in
the kernel via the packet socket. Maybe we should add a check to
can_dropped_invalid_skb().
Marc
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Pengutronix e.K. | Marc Kleine-Budde |
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