Re: [PATCH] (1/5) replay netdev notifier events on registration

On Tue, 13 Jan 2004 10:58:43 -0800
Stephen Hemminger [off-list ref] wrote:

Several protocols register for network device notification to detect new new network devices;
but then have to walk the device list to capture the devices that are already up.
This leaves a exposed window between when the notifier is registered and when the list walk
occurs. Also, in several cases, there is a different code path for the pre-existing and
new devices which leads to bug exposure.

The solution is to replay the registration and up events for existing devices into the
new notifier.

All notifiers in 2.6.1 have been audited and the other patches fix places
where protocols were doing there own registered device discovery loop.

Thanks to Al Viro for the suggestion.

Looks good.... are you absolutely sure no remaining notifiers will
barf if they get a register for an already existing device?  I know up
events should be ok...

Anyways, I applied all 5 patches, thanks.