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Undocumented Sleep Requirements for ieee80211_ops

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Hi,

>From the documentation:(mac80211.h) For the ieee80211_ops
(un)assign_vif_chanctx, there is no mention of explicit sleep
requirements (allowed/disallwoed) for the callback.

>From a quick glance at the code calling the OP, looks like we can
sleep (mutexes are used). So how should we handle such OPS? is it ok
to sleep in the callback?

We have a requirement where we need to wait for channel programming to
be done, before we allow data packets and it might take a while.

-- 
Thanks,
Regards,
Chaitanya T K.
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