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| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2023-07-03 18:18:19 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2023-07-28 09:45:25 +0200 |
| commit | 8e0e2950c9ef48f7f40a7175048744ec2390b16e (patch) | |
| tree | 3af34d77b9acf18c9f3cf79d306771d008e589f1 /drivers/net/can | |
| parent | 2e3df4a3b3178006d530f4c4d0e91f3d96cddb3c (diff) | |
| download | linux-stable-8e0e2950c9ef48f7f40a7175048744ec2390b16e.tar.gz linux-stable-8e0e2950c9ef48f7f40a7175048744ec2390b16e.tar.bz2 linux-stable-8e0e2950c9ef48f7f40a7175048744ec2390b16e.zip | |
can: rx-offload: add can_rx_offload_get_echo_skb_queue_tail()
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>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/dev/rx-offload.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/net/can/dev/rx-offload.c b/drivers/net/can/dev/rx-offload.c index 6e87ad908346..77091f7d1fa7 100644 --- a/drivers/net/can/dev/rx-offload.c +++ b/drivers/net/can/dev/rx-offload.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2014 Protonic Holland, * David Jander - * Copyright (C) 2014-2021 Pengutronix, + * Copyright (C) 2014-2021, 2023 Pengutronix, * Marc Kleine-Budde <kernel@pengutronix.de> */ @@ -280,6 +280,31 @@ int can_rx_offload_queue_tail(struct can_rx_offload *offload, } EXPORT_SYMBOL_GPL(can_rx_offload_queue_tail); +unsigned int +can_rx_offload_get_echo_skb_queue_tail(struct can_rx_offload *offload, + unsigned int idx, + unsigned int *frame_len_ptr) +{ + struct net_device *dev = offload->dev; + struct net_device_stats *stats = &dev->stats; + struct sk_buff *skb; + unsigned int len; + int err; + + skb = __can_get_echo_skb(dev, idx, &len, frame_len_ptr); + if (!skb) + return 0; + + err = can_rx_offload_queue_tail(offload, skb); + if (err) { + stats->rx_errors++; + stats->tx_fifo_errors++; + } + + return len; +} +EXPORT_SYMBOL_GPL(can_rx_offload_get_echo_skb_queue_tail); + void can_rx_offload_irq_finish(struct can_rx_offload *offload) { unsigned long flags; |