> Now, I should really wait for the card to interrupt me and
> tell me that everything is ok with my command, but calling
> any type of scheduling panics the kernel (i.e. interruptible_sleep_on_timeout, schedule etc.)
You are not allowed to sleep there, exactly as you are not allowed
to sleep during hard_start_xmit. Essentially, set_multicast_list status
is equal to hard_start_xmit.
If the operation cannot be complete without delay, you must defer it
to timer. If you need make some post-processing after IRQ from card,
you can start task queue in irq handler.
Alexey
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