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qcacld-3.0: Avoid wifi fail when timeout waiting for sme close session

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In special case when vdev delete for wlan disabled,
event eWNI_SME_DEL_STA_SELF_RSP  has been sent
to QDF_MODULE_ID_SME queue,  but scheduler thread have no
execution chance,  timed out waiting for sme close session in
hdd_vdev_destroy, sme session isn't cleaned up.
When enable wifi again, vdev create failed for cannot re-open
active session, wifi failed to start any more,  can't recover
until system reboot.
Fix:
When timed out waiting for sme close session in
hdd_vdev_destroy, clean up sme session too as normal process.

Change-Id: If6c6ed313928294bb83ebbc0e716a574e6a07470
CRs-Fixed: 2547355
This commit is contained in:
Jianmin Zhu 2019-10-18 20:21:57 +08:00 • committed by nshrivas
commit 387e65caa6
3 changed files with 26 additions and 3 deletions
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8
core/hdd/src/wlan_hdd_main.c
View file

@ -4457,13 +4457,15 @@ int hdd_vdev_destroy(struct hdd_adapter *adapter)
if (adapter->device_mode == QDF_NDI_MODE)
hdd_ndp_session_end_handler(adapter);
if (status == QDF_STATUS_E_TIMEOUT)
if (status == QDF_STATUS_E_TIMEOUT) {
hdd_err("timed out waiting for sme vdev delete");
else if (adapter->qdf_session_close_event.force_set)
sme_cleanup_session(hdd_ctx->mac_handle, vdev_id);
} else if (adapter->qdf_session_close_event.force_set) {
hdd_info("SSR occurred during sme vdev delete");
else
} else {
hdd_err("failed to wait for sme vdev delete; status:%u",
status);
}
}
release_vdev:

9
core/sme/inc/sme_api.h
View file

@ -398,6 +398,15 @@ QDF_STATUS sme_create_vdev(mac_handle_t mac_handle,
*/
QDF_STATUS sme_vdev_delete(mac_handle_t mac_handle, uint8_t vdev_id);
/**
* sme_cleanup_session() - clean up sme session info for vdev
* @mac_handle: mac handle
* @vdev_id: vdev id
*
* Return: none
*/
void sme_cleanup_session(mac_handle_t mac_handle, uint8_t vdev_id);
/**
* sme_set_curr_device_mode() - Sets the current operating device mode.
* @mac_handle: The handle returned by mac_open.

12
core/sme/src/common/sme_api.c
View file

@ -4562,6 +4562,18 @@ QDF_STATUS sme_vdev_delete(mac_handle_t mac_handle, uint8_t vdev_id)
return status;
}
void sme_cleanup_session(mac_handle_t mac_handle, uint8_t vdev_id)
{
QDF_STATUS status;
struct mac_context *mac = MAC_CONTEXT(mac_handle);
status = sme_acquire_global_lock(&mac->sme);
if (QDF_IS_STATUS_ERROR(status))
return;
csr_cleanup_session(mac, vdev_id);
sme_release_global_lock(&mac->sme);
}
/*
* sme_change_mcc_beacon_interval() -
* To update P2P-GO beaconInterval. This function should be called after