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switchdev: Add extack argument to call_switchdev_notifiers()

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A follow-up patch will enable vetoing of FDB entries. Make it possible
to communicate details of why an FDB entry is not acceptable back to the
user.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata
2019-01-16 23:06:56 +00:00
committed by David S. Miller
parent 4c59b7d160
commit 6685987c29
10 changed files with 24 additions and 19 deletions
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Documentation/networking/switchdev.txt
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@@ -196,7 +196,7 @@ The switch device will learn/forget source MAC address/VLAN on ingress packets
and notify the switch driver of the mac/vlan/port tuples. The switch driver,
in turn, will notify the bridge driver using the switchdev notifier call:
err = call_switchdev_notifiers(val, dev, info);
err = call_switchdev_notifiers(val, dev, info, extack);
Where val is SWITCHDEV_FDB_ADD when learning and SWITCHDEV_FDB_DEL when
forgetting, and info points to a struct switchdev_notifier_fdb_info. On