This is a note to let you know that I've just added the patch titled
net: lan966x: Remove ptp traps in case the ptp is not enabled.
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-lan966x-remove-ptp-traps-in-case-the-ptp-is-not-.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1111d1b3d69c9c789c9b04147404c9e15d93a1a4
Author: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx>
Date: Fri May 17 15:58:08 2024 +0200
net: lan966x: Remove ptp traps in case the ptp is not enabled.
[ Upstream commit eda40be3a5ff3fdce513d2bcfeaca8cc16cf962a ]
Lan966x is adding ptp traps to redirect the ptp frames to the CPU such
that the HW will not forward these frames anywhere. The issue is that in
case ptp is not enabled and the timestamping source is et to
HWTSTAMP_SOURCE_NETDEV then these traps would not be removed on the
error path.
Fix this by removing the traps in this case as they are not needed.
Fixes: 54e1ed69c40a ("net: lan966x: convert to ndo_hwtstamp_get() and ndo_hwtstamp_set()")
Suggested-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Reviewed-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Signed-off-by: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240517135808.3025435-1-horatiu.vultur@xxxxxxxxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 3f1033abd462d..c3f6c10bc2393 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -474,14 +474,14 @@ static int lan966x_port_hwtstamp_set(struct net_device *dev,
cfg->source != HWTSTAMP_SOURCE_PHYLIB)
return -EOPNOTSUPP;
+ if (cfg->source == HWTSTAMP_SOURCE_NETDEV && !port->lan966x->ptp)
+ return -EOPNOTSUPP;
+
err = lan966x_ptp_setup_traps(port, cfg);
if (err)
return err;
if (cfg->source == HWTSTAMP_SOURCE_NETDEV) {
- if (!port->lan966x->ptp)
- return -EOPNOTSUPP;
-
err = lan966x_ptp_hwtstamp_set(port, cfg, extack);
if (err) {
lan966x_ptp_del_traps(port);
