Change in osmo-bts[master]: osmo-bts-trx/vty: ensure backwards compatibility with older config files

[fixeria]

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bts/+/16653 )


Change subject: osmo-bts-trx/vty: ensure backwards compatibility with older config files
......................................................................

osmo-bts-trx/vty: ensure backwards compatibility with older config files

osmo-bts-trx used to have its own (low-level) MS Power Control loop,
but recently it has been ripped out. Since [1], the process fails to
start if the configuration file still contains 'ms-power-control dsp'.

Let's be more tolerant: override 'dsp' by 'osmo' and print a warning.

[1] I49706926b1e962b18791174627bc3cc0cd0cd9d5

Change-Id: I4facd21bca3d8cb80d21e83ea267bc013e474533
---
M src/common/vty.c
1 file changed, 12 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/53/16653/1

diff --git a/src/common/vty.c b/src/common/vty.c
index 8b947a7..e7af520 100644
--- a/src/common/vty.c
+++ b/src/common/vty.c
@@ -792,8 +792,18 @@
 	bool soft = !strcmp(argv[0], "osmo");
 
 	if (!soft && !gsm_bts_has_feature(trx->bts, BTS_FEAT_MS_PWR_CTRL_DSP)) {
-		vty_out(vty, "This BTS model has no DSP/HW MS Power Control support%s", VTY_NEWLINE);
-		return CMD_WARNING;
+		/* NOTE: osmo-bts-trx used to have its own (low-level) MS Power Control loop,
+		 * which has been ripped out recently. Configuration files may still contain
+		 * 'dsp', so let's be tolerant: override 'dsp' by 'osmo' and print a warning. */
+		if (trx->bts->variant == BTS_OSMO_TRX && vty->type == VTY_FILE) {
+			vty_out(vty, "BTS model 'osmo-bts-trx' has no DSP/HW MS Power Control support, "
+				     "consider updating your configuration file!%s", VTY_NEWLINE);
+			soft = true; /* override */
+			return CMD_SUCCESS;
+		} else {
+			vty_out(vty, "This BTS model has no DSP/HW MS Power Control support%s", VTY_NEWLINE);
+			return CMD_WARNING;
+		}
 	}
 
 	trx->ms_pwr_ctl_soft = soft;

-- 
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Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Change-Id: I4facd21bca3d8cb80d21e83ea267bc013e474533
Gerrit-Change-Number: 16653
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <axilirator at gmail.com>
Gerrit-MessageType: newchange
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