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devlink: Prevent port_type_set() callback when it's not needed

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When a port_type_set() is been called and the new port type set is the same
as the old one, just return success.

Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Elad Raz 2016-10-23 17:43:05 +02:00 committed by David S. Miller
parent 89ab88b01b
commit 6edf10173a
1 changed files with 2 additions and 0 deletions
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2
net/core/devlink.c
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@ -608,6 +608,8 @@ static int devlink_port_type_set(struct devlink *devlink,
if (devlink->ops && devlink->ops->port_type_set) {
if (port_type == DEVLINK_PORT_TYPE_NOTSET)
return -EINVAL;
if (port_type == devlink_port->type)
return 0;
err = devlink->ops->port_type_set(devlink_port, port_type);
if (err)
return err;