Change in libosmocore[master]: gsm: Deprecate buggy gsm_arfcn2band API and introduce gsm_arfcn2band_rc

[Pau Espin Pedrol]

Hello Vadim Yanitskiy, Neels Hofmeyr, Harald Welte, Jenkins Builder, 

I'd like you to reexamine a change. Please visit

    https://gerrit.osmocom.org/11789

to look at the new patch set (#2).

Change subject: gsm: Deprecate buggy gsm_arfcn2band API and introduce gsm_arfcn2band_rc
......................................................................

gsm: Deprecate buggy gsm_arfcn2band API and introduce gsm_arfcn2band_rc

ARFCNs are values in well defined ranges. Until this patch, ARFCNs not
belonging to any band were blindly assigned to DCS1800 by
gsm_arfcn2band, causing unnoticed bugs and misconfigurations in
osmo-bsc.

Previous API gsm_arfcn2band cannot accomodate this kind of check easily,
so let's deprecate it to tell people to use a new API gsm_arfcn2band_rc
which performs this kind of checks and allows callers to log failures,
misconfigurations, etc.
At the same time, modify implementation of gsm_arfcn2band to abort if an
invalid ARFCN is passed, this way users of this API can notice they are
passing wrong data to it that most probably will produce unexpected
results.

Related: OS#3063
Change-Id: I780d452dcebce385469e32ef2fd844df6033393a
---
M include/osmocom/gsm/gsm_utils.h
M src/gsm/gsm_utils.c
M src/gsm/libosmogsm.map
M utils/osmo-arfcn.c
4 files changed, 58 insertions(+), 25 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/89/11789/2
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I780d452dcebce385469e32ef2fd844df6033393a
Gerrit-Change-Number: 11789
Gerrit-PatchSet: 2
Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org>
Gerrit-Reviewer: Jenkins Builder (1000002)
Gerrit-Reviewer: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-Reviewer: Vadim Yanitskiy <axilirator at gmail.com>
Gerrit-CC: Max <msuraev at sysmocom.de>
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