From 19d1f0ed74b75279f46549de80fa2adf80ef9995 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Fri, 27 Dec 2019 15:02:30 +0200 Subject: [PATCH] net: dsa: sja1105: Empty the RX timestamping queue on PTP settings change When disabling PTP timestamping, don't reset the switch with the new static config until all existing PTP frames have been timestamped on the RX path or dropped. There's nothing we can do with these afterwards. Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- drivers/net/dsa/sja1105/sja1105_ptp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/dsa/sja1105/sja1105_ptp.c b/drivers/net/dsa/sja1105/sja1105_ptp.c index 387b22a86a53..e6b611470043 100644 --- a/drivers/net/dsa/sja1105/sja1105_ptp.c +++ b/drivers/net/dsa/sja1105/sja1105_ptp.c @@ -83,6 +83,7 @@ static int sja1105_init_avb_params(struct sja1105_private *priv, static int sja1105_change_rxtstamping(struct sja1105_private *priv, bool on) { + struct sja1105_ptp_data *ptp_data = &priv->ptp_data; struct sja1105_general_params_entry *general_params; struct sja1105_table *table; int rc; @@ -101,6 +102,8 @@ static int sja1105_change_rxtstamping(struct sja1105_private *priv, kfree_skb(priv->tagger_data.stampable_skb); priv->tagger_data.stampable_skb = NULL; } + ptp_cancel_worker_sync(ptp_data->clock); + skb_queue_purge(&ptp_data->skb_rxtstamp_queue); return sja1105_static_config_reload(priv, SJA1105_RX_HWTSTAMPING); } -- 2.30.2