[PATCH v2 net-next 3/5] dp83640: Prune rx timestamp list before reading from it
From: Stefan Sørensen <hidden>
Date: 2015-11-03 08:52:33
Subsystem:
ethernet phy library, networking drivers, ptp hardware clock support, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Richard Cochran, Linus Torvalds
The list of rx timestamps are currently only pruned of old entries when a new entry is inserted. If no new entries are added, old timestamps may survive beyond their lifetime, possible causing them to be attached to packets with the same sequence number after a rollover. Signed-off-by: Stefan Sørensen <redacted> --- drivers/net/phy/dp83640.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index 69a2f56..39ac633 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c@@ -1398,6 +1398,7 @@ static bool dp83640_rxtstamp(struct phy_device *phydev, return false; spin_lock_irqsave(&dp83640->rx_lock, flags); + prune_rx_ts(dp83640); list_for_each_safe(this, next, &dp83640->rxts) { rxts = list_entry(this, struct rxts, list); if (match(skb, type, rxts)) {
--
2.5.0