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net: switchdev: Add extack to struct switchdev_notifier_info

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In order to pass extack to the drivers that need it, add an extack field
to struct switchdev_notifier_info, and an extack argument to the
function call_switchdev_blocking_notifiers(). Also add a helper function
switchdev_notifier_info_to_extack().

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-12-12 17:02:54 +00:00 • committed by David S. Miller
parent 69b7320e14
commit 479c86dc55
3 changed files with 17 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

7
net/switchdev/switchdev.c
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@ -368,7 +368,7 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
.handled = false,
};
rc = call_switchdev_blocking_notifiers(nt, dev, &obj_info.info);
rc = call_switchdev_blocking_notifiers(nt, dev, &obj_info.info, extack);
err = notifier_to_errno(rc);
if (err) {
WARN_ON(!obj_info.handled);
@ -559,6 +559,7 @@ int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
struct switchdev_notifier_info *info)
{
info->dev = dev;
info->extack = NULL;
return atomic_notifier_call_chain(&switchdev_notif_chain, val, info);
}
EXPORT_SYMBOL_GPL(call_switchdev_notifiers);
@ -580,9 +581,11 @@ int unregister_switchdev_blocking_notifier(struct notifier_block *nb)
EXPORT_SYMBOL_GPL(unregister_switchdev_blocking_notifier);
int call_switchdev_blocking_notifiers(unsigned long val, struct net_device *dev,
struct switchdev_notifier_info *info)
struct switchdev_notifier_info *info,
struct netlink_ext_ack *extack)
{
info->dev = dev;
info->extack = extack;
return blocking_notifier_call_chain(&switchdev_blocking_notif_chain,
val, info);
}