Johannes Berg 4a19906823 mac80211: disentangle iflist_mtx and chanctx_mtx ...

At least on iwlwifi, sometimes lockdep complains that we can
lock
 chanctx_mtx -> mvm.mutex -> iflist_mtx
 (due to iterate_interfaces)
and
 iflist_mtx -> chanctx_mtx

Remove the latter dependency in mac80211 by using the RTNL
that we already hold in one case, and can relatively easily
achieve in the other case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

2017-04-26 23:17:44 +02:00

35 KiB

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