On 1/18/21 11:01 AM, Edwin Peer wrote: > I'm facing a similar issue with NIC firmware that isn't yet ready by > device open time, but have been resisting the urge to lie to the stack
why not have the ndo_open return -EBUSY or -EAGAIN to tell S/W to try again 'later'? > about the state of the device and use link state as the next gate. > Sure, most things will just work most of the time, but the problems > with this approach are manifold. Firstly, at least in the NIC case, > the user may confuse this state for some kind of cable issue and go > looking in the wrong place for a solution. But, there are also several > ways the initialization can fail after this point and now the device > is administratively UP, but can never be UP, with no sanctioned way to > communicate the failure. Aren't the issues here similar?