> I think you didn't understand it. My patch against syncppp.c (and
> net/core/dev.c) allows IFF_RUNNING to be set by the link protocol driver,
> while IFF_UP is set by dev.c only.
Changing dev->flags in any place different of dev.c is bug (pretty harmless).
But if you change it at BH or IRQ, it is serious bug.
I understand your enthusiasm, but try to keep administrative things
and link state separately yet and to protect things changed by interrupts
properly.
Alexey Kuznetsov
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