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Jianmin Zhu 687602cfb9 qcacmn: Add API for concurrency check to cover AP channel switch case
There is already existing SAP+GO combination but due to upper
layer notifying LTE-COEX event or sending command to move one of
the connections to different channel. In such cases before moving
existing connection to new channel, check if new channel can
co-exist with the other existing connection. For example, one
SAP1 is on channel-6 and second SAP2 is on channel-36 and lets
say they are doing DBS, and lets say upper layer sends LTE-COEX
to move SAP1 from channel-6 to channel-149. In this case, SAP1
and SAP2 will end up doing MCC which may not be desirable result.

When channel switch, need recheck whether concurrency is allowed,
Store the connection's parameter and temporarily delete it
from the concurrency table. This way the allow concurrency
check can be used as though a new connection is coming up,
after check, restore the connection to concurrency table.

Change-Id: I66e262774de8dfeba56f9b6f3d1d6721f1748881
CRs-Fixed: 2299105
2018-08-27 16:43:22 -07:00
inc qcacmn: Add API for concurrency check to cover AP channel switch case 2018-08-27 16:43:22 -07:00
src qcacmn: Add API for concurrency check to cover AP channel switch case 2018-08-27 16:43:22 -07:00