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dp83640: Prune rx timestamp list before reading from it

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Sørensen 2015-11-03 09:34:06 +01:00 • committed by David S. Miller
parent 4b063258ab
commit ccf6ee9a69
1 changed files with 1 additions and 0 deletions
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1
drivers/net/phy/dp83640.c
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@ -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)) {