[libvirt] [PATCH] Allow no <source> for bridge interfaces

[John Levon]

On Tue, Feb 03, 2009 at 02:27:31PM +0000, Daniel P. Berrange wrote:

> > Allow no <source> for bridge interfaces
> > 
> > Historically, it was allowed to specify a bridge interface without a
> > specific bridge source, in which case xend would choose one. Keep
> > compatible with this behaviour.
> 
> ACK in principle, but this will allow the QEMU, OpenVZ & Xen XM drivers
> to potentially de-reference NULL when using the resulting parsed config
> since they assume that brname is compulsory for type=bridge.

I'll fix them up. Should the first two throw an error back? I'll also
add a comment explaining why we let it through.

regards
john