This is a note to let you know that I've just added the patch titled
net/mlx5e: Don't sync netdev state when not registered
to the 4.9-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-mlx5e-don-t-sync-netdev-state-when-not-registered.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Jan 12 21:37:26 CET 2017
From: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Date: Wed, 28 Dec 2016 14:58:41 +0200
Subject: net/mlx5e: Don't sync netdev state when not registered
From: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
[ Upstream commit 610e89e05c3f28a7394935aa6b91f99548c4fd3c ]
Skip setting netdev vxlan ports and netdev rx_mode on driver load
when netdev is not yet registered.
Synchronizing with netdev state is needed only on reset flow where the
netdev remains registered for the whole reset period.
This also fixes an access before initialization of net_device.addr_list_lock
- which for some reason initialized on register_netdev - where we queued
set_rx_mode work on driver load before netdev registration.
Fixes: 26e59d8077a3 ("net/mlx5e: Implement mlx5e interface attach/detach callbacks")
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Reported-by: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Mohamad Haj Yahia <mohamad@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3773,14 +3773,7 @@ static void mlx5e_nic_enable(struct mlx5
mlx5_lag_add(mdev, netdev);
- if (mlx5e_vxlan_allowed(mdev)) {
- rtnl_lock();
- udp_tunnel_get_rx_info(netdev);
- rtnl_unlock();
- }
-
mlx5e_enable_async_events(priv);
- queue_work(priv->wq, &priv->set_rx_mode_work);
if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
mlx5_query_nic_vport_mac_address(mdev, 0, rep.hw_id);
@@ -3790,6 +3783,18 @@ static void mlx5e_nic_enable(struct mlx5
rep.priv_data = priv;
mlx5_eswitch_register_vport_rep(esw, 0, &rep);
}
+
+ if (netdev->reg_state != NETREG_REGISTERED)
+ return;
+
+ /* Device already registered: sync netdev system state */
+ if (mlx5e_vxlan_allowed(mdev)) {
+ rtnl_lock();
+ udp_tunnel_get_rx_info(netdev);
+ rtnl_unlock();
+ }
+
+ queue_work(priv->wq, &priv->set_rx_mode_work);
}
static void mlx5e_nic_disable(struct mlx5e_priv *priv)
Patches currently in stable-queue which might be from saeedm@xxxxxxxxxxxx are
queue-4.9/net-mlx5e-don-t-sync-netdev-state-when-not-registered.patch
queue-4.9/net-mlx5-mask-destination-mac-value-in-ethtool-steering-rules.patch
queue-4.9/net-mlx5-check-fw-limitations-on-log_max_qp-before-setting-it.patch
queue-4.9/net-mlx5-avoid-shadowing-numa_node.patch
queue-4.9/net-mlx5e-disable-netdev-after-close.patch
queue-4.9/net-mlx5e-remove-warn_once-from-adaptive-moderation-code.patch
queue-4.9/net-mlx5-prevent-setting-multicast-macs-for-vfs.patch
queue-4.9/net-mlx5-cancel-recovery-work-in-remove-flow.patch
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