tree da58868b882090104b3badd492011f3ebf086147
parent 990b151fbb04b52488382bee012b9b5e1ddc17f0
author Daniel Willmann <dwillmann@sysmocom.de> 1626279016 +0200
committer Daniel Willmann <dwillmann@sysmocom.de> 1626455709 +0200

gbproxy_peer: Free a cell as soon as no BSS BVC uses it

This patch adds gbproxy_cell_cleanup_bvc() which removes the bvc pointer
to the cell. If the BSS BVC of this cell is removed it frees the whole
cell (removing all the SGSN BVC pointers to the cell). The SGSN-side
BVCs are blocked at this point and will only be reestablished if this
BVC is reset again from the BSS.

Before this patch cells were never freed and might accumulate over time.
They would only be reused if the bvci matched that of a previous cell.

Related: OS#4960
Change-Id: Ib874cbebcea58fa4bf15e1ff40fe11601573e531