From 58abc67caaf8889d637fe2e6f3feb132e89c87f2 Mon Sep 17 00:00:00 2001
From: Eric Wild <ewild@sysmocom.de>
Date: Fri, 14 Jun 2019 16:11:08 +0200
Subject: [PATCH] libvlr: fix sgsn tmsi creation, replace constant with define

reported by _dev_zero in #osmocom

Change-Id: Ib5679ab5d06b6ef735725b4a68eeb1e9cbcc11ba
Depends-On: libosmocore I52b9f6b5f3e96d85a390ba2af21d7814df8aaeec
---
 src/libvlr/vlr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/libvlr/vlr.c b/src/libvlr/vlr.c
index 2753096e9..5610cfb53 100644
--- a/src/libvlr/vlr.c
+++ b/src/libvlr/vlr.c
@@ -336,11 +336,11 @@ int vlr_subscr_alloc_tmsi(struct vlr_subscr *vsub)
 		/* Section 2.4 of 23.003: MSC has two MSB 00/01/10, SGSN 11 */
 		if (vlr->cfg.is_ps) {
 			/* SGSN */
-			tmsi |= 0xC000000;
+			tmsi |= GSM23003_TMSI_SGSN_MASK;
 		} else {
 			/* MSC */
-			if ((tmsi & 0xC0000000) == 0xC0000000)
-				tmsi &= ~0xC0000000;
+			if ((tmsi & GSM23003_TMSI_SGSN_MASK) == GSM23003_TMSI_SGSN_MASK)
+				tmsi &= ~GSM23003_TMSI_SGSN_MASK;
 		}
 
 		/* If this TMSI is already in use, try another one. */