tree bbddeeb31a0f61fc633d2137d1b8a45428b0e872
parent 963763dfec6843adef2bd61425192c39d14e3ba0
author Neels Hofmeyr <neels@hofmeyr.de> 1548863218 +0100
committer Neels Hofmeyr <neels@hofmeyr.de> 1549413044 +0100

handover_fsm: do not access conn->assignment.req, it may be outdated

handover_fsm.c accesses conn->assignment.req.s15_s0 to find out the current
lchan's AMR configuration. However, conn->assignment.* values are only valid
during an ongoing assignment.  Those values may be overwritten by any failed
Assignment attempt, at any time, and hence do not reflect the currently
assigned conn->lchan. Those realms must be kept separate.

The assignment.req.s15_s0 get passed to lchan_activate(), so it makes most
sense to store these values in struct gsm_lchan once the lchan activation
succeeded.

Add gsm_lchan.s15_s0, store the s15_s0 received in lchan_activate_info during
lchan_activate().

In handover_fsm.c, use conn->lchan->s15_s0 instead of conn->assignment.*.

Change-Id: Id8018fd9d56421f2ab7be91703018f6d6f21c929