From: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx> TX timestamps were added to the can_put_echo_skb() function of can_dev modules in [1]. However, janz-ican3 does not rely on that function but instead implements its own echo_skb logic. As such it does not offer TX timestamping. Add a call to skb_tx_timestamp() in the ican3_put_echo_skb() function so that the module now supports TX software timestamps. [1] commit 741b91f1b0ea ("can: dev: can_put_echo_skb(): add software tx timestamps") Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=741b91f1b0ea34f00f6a7d4539b767c409291fcf Signed-off-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx> Link: https://lore.kernel.org/all/20220727101641.198847-3-mailhol.vincent@xxxxxxxxxx Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> --- drivers/net/can/janz-ican3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index ccb5c5405224..78d9190a4220 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1277,6 +1277,8 @@ static void ican3_put_echo_skb(struct ican3_dev *mod, struct sk_buff *skb) if (!skb) return; + skb_tx_timestamp(skb); + /* save this skb for tx interrupt echo handling */ skb_queue_tail(&mod->echoq, skb); } -- 2.35.1