Change in ...osmo-sgsn[master]: mm_gb_fsm: unassign the llme when entering MM_IDLE

[lynxis lazus]

lynxis lazus has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/15479


Change subject: mm_gb_fsm: unassign the llme when entering MM_IDLE
......................................................................

mm_gb_fsm: unassign the llme when entering MM_IDLE

MM_IDLE means there is no known state to this MM.

Change-Id: Ieb0d6cea828842763c13942fe1a63dd89399f799
---
M src/sgsn/gprs_mm_state_gb_fsm.c
1 file changed, 11 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/79/15479/1

diff --git a/src/sgsn/gprs_mm_state_gb_fsm.c b/src/sgsn/gprs_mm_state_gb_fsm.c
index 2056540..4e1ed48 100644
--- a/src/sgsn/gprs_mm_state_gb_fsm.c
+++ b/src/sgsn/gprs_mm_state_gb_fsm.c
@@ -1,6 +1,7 @@
 #include <osmocom/core/tdef.h>
 
 #include <osmocom/sgsn/gprs_mm_state_gb_fsm.h>
+#include <osmocom/sgsn/gprs_llc.h>
 
 #include <osmocom/sgsn/debug.h>
 #include <osmocom/sgsn/sgsn.h>
@@ -16,6 +17,15 @@
 #define mm_state_gb_fsm_state_chg(fi, NEXT_STATE) \
 	osmo_tdef_fsm_inst_state_chg(fi, NEXT_STATE, mm_state_gb_fsm_timeouts, sgsn->cfg.T_defs, -1)
 
+static void st_mm_idle_on_enter(struct osmo_fsm_inst *fi, uint32_t prev_state) {
+	struct sgsn_mm_ctx *ctx = fi->priv;
+
+	if (ctx->gb.llme) {
+		gprs_llgmm_unassign(ctx->gb.llme);
+		ctx->gb.llme = NULL;
+	}
+}
+
 static void st_mm_idle(struct osmo_fsm_inst *fi, uint32_t event, void *data)
 {
 	switch(event) {
@@ -59,6 +69,7 @@
 	[ST_MM_IDLE] = {
 		.in_event_mask = X(E_MM_GPRS_ATTACH) | X(E_MM_PDU_RECEPTION),
 		.out_state_mask = X(ST_MM_READY),
+		.onenter = st_mm_idle_on_enter,
 		.name = "Idle",
 		.action = st_mm_idle,
 	},

-- 
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-Change-Id: Ieb0d6cea828842763c13942fe1a63dd89399f799
Gerrit-Change-Number: 15479
Gerrit-PatchSet: 1
Gerrit-Owner: lynxis lazus <lynxis at fe80.eu>
Gerrit-MessageType: newchange
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