tree d96de2120f17dd4950694afde73a272534cd68bd
parent 34b8b5b29b72e245cc159ed4b035f6377988b762
author Neels Hofmeyr <neels@hofmeyr.de> 1469288302 +0200
committer Neels Hofmeyr <neels@hofmeyr.de> 1469460947 +0200

code dup: join [rsl_]lchan_lookup() from libbsc and osmo-bts

lchan_lookup in abis_rsl.c and rsl_lchan_lookup() from osmo-bts rsl.c are the
same code, except for the log context, which is only set in abis_rsl.c.
Factor out the common code to rsl_lchan_lookup() in gsm_data_shared.c.

Openbsc and osmo-bts each define their own DRSL log constant, so add an int *rc
return code argument and keep the logging part in abis_rsl.c's thin lchan_lookup()
wrapper. Incidentally, this also removes code dup for logging.

To avoid duplicate symbols, the rsl_lchan_lookup() implementation needs to be
removed from osmo-bts, so older osmo-bts git revisions will not build with
this.

Change-Id: Ie89bc5bb9110a0e539d37991dedac6f913211b48