From 907c3f2f3c257f4a58637751d294eeea7441de1c Mon Sep 17 00:00:00 2001
From: Sukchan Lee <acetcom@gmail.com>
Date: Sat, 20 Jan 2018 04:07:20 +0900
Subject: [PATCH] rollback previous commit

---
 src/mme/emm_handler.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/src/mme/emm_handler.c b/src/mme/emm_handler.c
index 2aa0c60c0..4bdf8d326 100644
--- a/src/mme/emm_handler.c
+++ b/src/mme/emm_handler.c
@@ -46,7 +46,6 @@ status_t emm_handle_attach_request(
      *
      * TAU_REQUEST
      *   Clear Paging Timer and Message
-     *   Update KeNB
      *
      * SERVICE_REQUEST
      *   Clear Paging Timer and Message
@@ -385,7 +384,6 @@ status_t emm_handle_service_request(
      *
      * TAU_REQUEST
      *   Clear Paging Timer and Message
-     *   Update KeNB
      *
      * SERVICE_REQUEST
      *   Clear Paging Timer and Message
@@ -428,19 +426,12 @@ status_t emm_handle_tau_request(
      *
      * TAU_REQUEST
      *   Clear Paging Timer and Message
-     *   Update KeNB
      *
      * SERVICE_REQUEST
      *   Clear Paging Timer and Message
      *   Update KeNB
      */
     CLEAR_PAGING_INFO(mme_ue);
-    if (SECURITY_CONTEXT_IS_VALID(mme_ue))
-    {
-        mme_kdf_enb(mme_ue->kasme, mme_ue->ul_count.i32, mme_ue->kenb);
-        mme_kdf_nh(mme_ue->kasme, mme_ue->kenb, mme_ue->nh);
-        mme_ue->nhcc = 1;
-    }
 
     /* Set EPS Update Type */
     memcpy(&mme_ue->nas_eps.update, eps_update_type,