commit 35ed8b1be4e1fce5be61e78fd340910be13eb80c
author Ratheesh S P <c_rpappa@qti.qualcomm.com> Mon Apr 27 14:01:07 2015 +0530
committer Satyanarayana Dash <c_sadash@qti.qualcomm.com> Wed May 13 18:59:27 2015 +0530
tree 0afe323dc4f44c8ffb64c05faf4c82d2b856bcfa
parent 0e0fb2c85458a713881283dbc5cecbf206de57c4

wlan: Address excessive logging issue during driver unload.

During driver unload, rmmod thread is stuck in hdd_wlan_exit
function since unregister_inet6_notfier being a blocking call
prevents driver unload with isLoadUnloadInProgress flag set
without stopping the tx queues. As a result excessive logs
in TxThread context causes watchdog bark.

To mitigate this issue, stop the queues before unregistering
the ipv4/ipv6 notifier.

Change-Id: Iadc2a0eb6ff7eb001f1e01bb32a04372a0af430c
CRs-Fixed: 828843

CORE/HDD/src/wlan_hdd_main.c

diff --git a/CORE/HDD/src/wlan_hdd_main.c b/CORE/HDD/src/wlan_hdd_main.c
index dd31968..d8be59d 100755
--- a/CORE/HDD/src/wlan_hdd_main.c
+++ b/CORE/HDD/src/wlan_hdd_main.c
@@ -8226,12 +8226,6 @@
 
    ENTER();
 
-#ifdef WLAN_NS_OFFLOAD
-   hddLog(LOGE, FL("Unregister IPv6 notifier"));
-   unregister_inet6addr_notifier(&pHddCtx->ipv6_notifier);
-#endif
-   hddLog(LOGE, FL("Unregister IPv4 notifier"));
-   unregister_inetaddr_notifier(&pHddCtx->ipv4_notifier);
 
    if (VOS_FTM_MODE != hdd_get_conparam())
    {
@@ -8421,6 +8415,13 @@
 
    hdd_debugfs_exit(pHddCtx);
 
+#ifdef WLAN_NS_OFFLOAD
+   hddLog(LOGE, FL("Unregister IPv6 notifier"));
+   unregister_inet6addr_notifier(&pHddCtx->ipv6_notifier);
+#endif
+   hddLog(LOGE, FL("Unregister IPv4 notifier"));
+   unregister_inetaddr_notifier(&pHddCtx->ipv4_notifier);
+
    // Unregister the Net Device Notifier
    unregister_netdevice_notifier(&hdd_netdev_notifier);