diff --git a/openbsc/src/libgb/gprs_bssgp_vty.c b/openbsc/src/libgb/gprs_bssgp_vty.c
index ff1b8f5..49a90c3 100644
--- a/openbsc/src/libgb/gprs_bssgp_vty.c
+++ b/openbsc/src/libgb/gprs_bssgp_vty.c
@@ -48,6 +48,18 @@
 	{ 0, NULL }
 };
 
+static void log_set_bvc_filter(struct log_target *target,
+				struct bssgp_bvc_ctx *bctx)
+{
+	if (bctx) {
+		target->filter_map |= (1 << FLT_BVC);
+		target->filter_data[FLT_BVC] = bctx;
+	} else if (target->filter_data[FLT_NSVC]) {
+		target->filter_map = ~(1 << FLT_BVC);
+		target->filter_data[FLT_BVC] = NULL;
+	}
+}
+
 static struct cmd_node bssgp_node = {
 	L_BSSGP_NODE,
 	"%s(bssgp)#",