dyn PDCH: allow allocating TCH/F on TCH/F_PDCH slots

Remove check for dyn PDCH in _lc_find_trx(), instead call _lc_find_trx() via
_lc_find_bts() several times, so that pure TCH/F is preferred to TCH/F_PDCH.
Add this logic next to the other channel match decisions in chan_alloc().

BTW, the removed check in _lc_find_trx() whether PDCH is active is not
necessary, as described in the added comment for lchan_alloc().

Original patch idea by jolly, but split in two and implemented differently by
nhofmeyr.

Change-Id: I0c728b922656be03588b775638b610a93f8187d5
1 file changed
tree: 3562733c4d9c448c66a2814d9c7fddaa3524d497
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview