Commit 19d1f0ed authored by Vladimir Oltean's avatar Vladimir Oltean Committed by David S. Miller
Browse files

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: default avatarVladimir Oltean <olteanv@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1e762bd2

drivers/net/dsa/sja1105/sja1105_ptp.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

}

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