cosmetic: xua_snm: Add spec reference regarding no SSNM tx

Change-Id: I69912d5b7032c12e06648e5f5a700384182bb1f9
---
M src/xua_snm.c
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/xua_snm.c b/src/xua_snm.c
index 916f6c3..a2e4fde 100644
--- a/src/xua_snm.c
+++ b/src/xua_snm.c
@@ -236,7 +236,7 @@
 
 	/* inform remote ASPs via DUNA/DAVA */
 	llist_for_each_entry(asp, &s7i->asp_list, list) {
-		/* SSNM is only permitted for ASPs in ACTIVE state */
+		/* SSNM is only permitted for ASPs in ACTIVE state (RFC4666 4.3.1) */
 		if (!osmo_ss7_asp_active(asp))
 			continue;
 
@@ -278,7 +278,7 @@
 
 	/* inform remote SUA ASPs via DUNA/DAVA */
 	llist_for_each_entry(asp, &s7i->asp_list, list) {
-		/* SSNM is only permitted for ASPs in ACTIVE state */
+		/* SSNM is only permitted for ASPs in ACTIVE state (RFC4666 4.3.1) */
 		if (!osmo_ss7_asp_active(asp))
 			continue;
 
@@ -317,7 +317,7 @@
 
 	/* inform remote ASPs via DUPU */
 	llist_for_each_entry(asp, &s7i->asp_list, list) {
-		/* SSNM is only permitted for ASPs in ACTIVE state */
+		/* SSNM is only permitted for ASPs in ACTIVE state (RFC4666 4.3.1) */
 		if (!osmo_ss7_asp_active(asp))
 			continue;
 
@@ -386,7 +386,7 @@
 	 * procedures of the relevant MTP3 standard."
 	 * ie. inform remote ASPs via SCON: */
 	llist_for_each_entry(asp, &s7i->asp_list, list) {
-		/* SSNM is only permitted for ASPs in ACTIVE state */
+		/* SSNM is only permitted for ASPs in ACTIVE state (RFC4666 4.3.1) */
 		if (!osmo_ss7_asp_active(asp))
 			continue;
 

