[SGSN] remove the mmctx->sgsn pointer
We never want to support multiple sgsn's within one process, so
there is no point in passing them around all the time.
diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c
index fcaee8b..e99cb6c 100644
--- a/openbsc/src/gprs/sgsn_libgtp.c
+++ b/openbsc/src/gprs/sgsn_libgtp.c
@@ -99,7 +99,6 @@
int sgsn_create_pdp_ctx(struct ggsn_ctx *ggsn, struct sgsn_mm_ctx *mmctx,
uint16_t nsapi, struct tlv_parsed *tp)
{
- struct sgsn_instance *sgsn = mmctx->sgsn;
struct pdp_t *pdp;
uint64_t imsi_ui64;
int rc;
@@ -184,7 +183,7 @@
LOGP(DGPRS, LOGL_NOTICE, "Create PDP ctx req timed out\n");
if (pdp->version == 1) {
pdp->version = 0;
- gtp_create_context_req(mmctx->sgsn->gsn, pdp, cbp);
+ gtp_create_context_req(sgsn->gsn, pdp, cbp);
return 0;
} else {
pdp_freepdp(pdp);