netdev - [PATCH net-next 22/36] can: janz-ican3: add software tx timestamp

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Date:   Sun, 31 Jul 2022 21:20:15 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de,
        Vincent Mailhol <mailhol.vincent@...adoo.fr>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 22/36] can: janz-ican3: add software tx timestamp

From: Vincent Mailhol <mailhol.vincent@...adoo.fr>

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@...adoo.fr>
Link: https://lore.kernel.org/all/20220727101641.198847-3-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 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