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authorHerbert Xu <herbert@gondor.apana.org.au>2007-07-30 17:03:38 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-31 02:28:15 -0700
commitfcc5a03ac42564e9e255c1134dda47442289e466 (patch)
tree8be87d6dc1a58b8ccd27de930c17bc1c9c26bac9 /arch/mips/arc
parentaeed9e82cd258b9699eaa6568efefba9cc6d5f01 (diff)
[NET]: Allow netdev REGISTER/CHANGENAME events to fail
This patch adds code to allow errors to be passed up from event handlers of NETDEV_REGISTER and NETDEV_CHANGENAME. It also adds the notifier_from_errno/notifier_to_errnor helpers to pass the errno value up to the notifier caller. If an error is detected when a device is registered, it causes that operation to fail. A NETDEV_UNREGISTER will be sent to all event handlers. Similarly if NETDEV_CHANGENAME fails the original name is restored and a new NETDEV_CHANGENAME event is sent. As such all event handlers must be idempotent with respect to these events. When an event handler is registered NETDEV_REGISTER events are sent for all devices currently registered. Should any of them fail, we will send NETDEV_GOING_DOWN/NETDEV_DOWN/NETDEV_UNREGISTER events to that handler for the devices which have already been registered with it. The handler registration itself will fail. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/mips/arc')
0 files changed, 0 insertions, 0 deletions