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[v2,net-next,3/5] dp83640: Prune rx timestamp list before reading from it

Message ID 1446539648-8355-4-git-send-email-stefan.sorensen@spectralink.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Sørensen, Stefan Nov. 3, 2015, 8:34 a.m. UTC 
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 <stefan.sorensen@spectralink.com>
---
 drivers/net/phy/dp83640.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

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)) {