Re: [PATCH 00/10] RTW88: Add support for USB variants

[Kalle Valo]

Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> writes:

> Another problem to address is that the driver uses
> ieee80211_iterate_stations_atomic() and
> ieee80211_iterate_active_interfaces_atomic() and does register accesses
> in the iterator. This doesn't work with USB, so iteration is done in two
> steps now: The ieee80211_iterate_*_atomic() functions are only used to
> collect the stations/interfaces on a list which is then iterated over
> non-atomically in the second step. The implementation for this is
> basically the one suggested by Ping-Ke here:
>
> https://lore.kernel.org/lkml/423f474e15c948eda4db5bc9a50fd391@xxxxxxxxxxx/

Isn't this racy? What guarantees that vifs are not deleted after
ieee80211_iterate_active_interfaces_atomic() call?

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