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can: rx-offload: add can_rx_offload_get_echo_skb_queue_tail()

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Add can_rx_offload_get_echo_skb_queue_tail(). This function addds the
echo skb at the end of rx-offload the queue. This is intended for
devices without timestamp support.

Link: https://lore.kernel.org/all/20230718-gs_usb-rx-offload-v2-2-716e542d14d5@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde
2023-07-03 18:18:19 +02:00
parent 2e3df4a3b3
commit 8e0e2950c9
2 changed files with 30 additions and 2 deletions
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5
include/linux/can/rx-offload.h
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@@ -3,7 +3,7 @@
* linux/can/rx-offload.h
*
* Copyright (c) 2014 David Jander, Protonic Holland
* Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
* Copyright (c) 2014-2017, 2023 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
*/
#ifndef _CAN_RX_OFFLOAD_H
@@ -49,6 +49,9 @@ unsigned int can_rx_offload_get_echo_skb_queue_timestamp(struct can_rx_offload *
unsigned int *frame_len_ptr);
int can_rx_offload_queue_tail(struct can_rx_offload *offload,
struct sk_buff *skb);
unsigned int can_rx_offload_get_echo_skb_queue_tail(struct can_rx_offload *offload,
unsigned int idx,
unsigned int *frame_len_ptr);
void can_rx_offload_irq_finish(struct can_rx_offload *offload);
void can_rx_offload_threaded_irq_finish(struct can_rx_offload *offload);
void can_rx_offload_del(struct can_rx_offload *offload);