diff options
| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2021-10-29 11:01:45 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-29 13:23:51 +0100 |
| commit | 67737c457281dd199ceb9e31b6ba7efd3bfe566d (patch) | |
| tree | 77003311252e189a9ea63792d9fa7f0f09175119 /net/mctp/device.c | |
| parent | 78476d315e190533757ab894255c4f2c2f254bce (diff) | |
mctp: Pass flow data & flow release events to drivers
Now that we have an extension for MCTP data in skbs, populate the flow
when a key has been created for the packet, and add a device driver
operation to inform of flow destruction.
Includes a fix for a warning with test builds:
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mctp/device.c')
| -rw-r--r-- | net/mctp/device.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/net/mctp/device.c b/net/mctp/device.c index 3827d62f52c9..8799ee77e7b7 100644 --- a/net/mctp/device.c +++ b/net/mctp/device.c @@ -260,6 +260,24 @@ void mctp_dev_put(struct mctp_dev *mdev) } } +void mctp_dev_release_key(struct mctp_dev *dev, struct mctp_sk_key *key) + __must_hold(&key->lock) +{ + if (!dev) + return; + if (dev->ops && dev->ops->release_flow) + dev->ops->release_flow(dev, key); + key->dev = NULL; + mctp_dev_put(dev); +} + +void mctp_dev_set_key(struct mctp_dev *dev, struct mctp_sk_key *key) + __must_hold(&key->lock) +{ + mctp_dev_hold(dev); + key->dev = dev; +} + static struct mctp_dev *mctp_add_dev(struct net_device *dev) { struct mctp_dev *mdev; @@ -414,6 +432,39 @@ static int mctp_dev_notify(struct notifier_block *this, unsigned long event, return NOTIFY_OK; } +static int mctp_register_netdevice(struct net_device *dev, + const struct mctp_netdev_ops *ops) +{ + struct mctp_dev *mdev; + + mdev = mctp_add_dev(dev); + if (IS_ERR(mdev)) + return PTR_ERR(mdev); + + mdev->ops = ops; + + return register_netdevice(dev); +} + +int mctp_register_netdev(struct net_device *dev, + const struct mctp_netdev_ops *ops) +{ + int rc; + + rtnl_lock(); + rc = mctp_register_netdevice(dev, ops); + rtnl_unlock(); + + return rc; +} +EXPORT_SYMBOL_GPL(mctp_register_netdev); + +void mctp_unregister_netdev(struct net_device *dev) +{ + unregister_netdev(dev); +} +EXPORT_SYMBOL_GPL(mctp_unregister_netdev); + static struct rtnl_af_ops mctp_af_ops = { .family = AF_MCTP, .fill_link_af = mctp_fill_link_af, |