mac80211: introduce plink lock for plink fields

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The mesh plink code uses sta->lock to serialize access to the
plink state fields between the peer link state machine and the
peer link timer.  Some paths (e.g. those involving
mps_qos_null_tx()) unfortunately hold this spinlock across
frame tx, which is soon to be disallowed.  Add a new spinlock
just for plink access.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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Bob Copeland 2015-04-13 17:26:28 -04:00 • committed by Johannes Berg

parent 388f997620

commit 48bf6beddf

3 changed files with 25 additions and 18 deletions

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37

net/mac80211/mesh_plink.c

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1

net/mac80211/sta_info.c

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5

net/mac80211/sta_info.h

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