[PATCH] osmo-bsc[master]: HO: cosmetic: bsc_handover_start_lchan_change(): tweak local...

[Neels Hofmeyr]

Review at  https://gerrit.osmocom.org/6464

HO: cosmetic: bsc_handover_start_lchan_change(): tweak local vars

To keep this cosmetic change apart from subsequent functional changes:
have a local do_assigment flag and a local network pointer.

Change-Id: I09684dcf2a00e3d930e058cc1c925ad6e59b1468
---
M src/libbsc/handover_logic.c
1 file changed, 11 insertions(+), 3 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/64/6464/1

diff --git a/src/libbsc/handover_logic.c b/src/libbsc/handover_logic.c
index 013377e..cf7684b 100644
--- a/src/libbsc/handover_logic.c
+++ b/src/libbsc/handover_logic.c
@@ -99,10 +99,12 @@
 int bsc_handover_start_lchan_change(struct gsm_lchan *old_lchan, struct gsm_bts *new_bts,
 				    enum gsm_chan_t new_lchan_type)
 {
+	struct gsm_network *network;
 	struct gsm_lchan *new_lchan;
 	struct bsc_handover *ho;
 	static uint8_t ho_ref = 0;
 	int rc;
+	bool do_assignment = false;
 
 	/* don't attempt multiple handovers for the same lchan at
 	 * the same time */
@@ -112,8 +114,14 @@
 	DEBUGP(DHO, "Beginning with handover operation"
 	       "(old_lchan on BTS %u, new BTS %u) ...\n",
 		old_lchan->ts->trx->bts->nr, new_bts->nr);
+	/* No new BTS? Then it shall be assignment within the same BTS. */
+	if (!new_bts)
+		new_bts = old_lchan->ts->trx->bts;
+	do_assignment = (new_bts == old_lchan->ts->trx->bts);
 
-	rate_ctr_inc(&new_bts->network->bsc_ctrs->ctr[BSC_CTR_HANDOVER_ATTEMPTED]);
+	network = new_bts->network;
+
+	rate_ctr_inc(&network->bsc_ctrs->ctr[BSC_CTR_HANDOVER_ATTEMPTED]);
 
 	if (!old_lchan->conn) {
 		LOGP(DHO, LOGL_ERROR, "Old lchan lacks connection data.\n");
@@ -123,7 +131,7 @@
 	new_lchan = lchan_alloc(new_bts, new_lchan_type, 0);
 	if (!new_lchan) {
 		LOGP(DHO, LOGL_NOTICE, "No free channel for %s\n", gsm_lchant_name(new_lchan_type));
-		rate_ctr_inc(&new_bts->network->bsc_ctrs->ctr[BSC_CTR_HANDOVER_NO_CHANNEL]);
+		rate_ctr_inc(&network->bsc_ctrs->ctr[BSC_CTR_HANDOVER_NO_CHANNEL]);
 		return -ENOSPC;
 	}
 
@@ -136,7 +144,7 @@
 	ho->old_lchan = old_lchan;
 	ho->new_lchan = new_lchan;
 	ho->ho_ref = ho_ref++;
-	if (old_lchan->ts->trx->bts != new_bts) {
+	if (!do_assignment) {
 		ho->inter_cell = true;
 		ho->async = true;
 	}

-- 
To view, visit https://gerrit.osmocom.org/6464
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I09684dcf2a00e3d930e058cc1c925ad6e59b1468
Gerrit-PatchSet: 1
Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de>