wlan: Prevent roaming latency caused by LL stat ops
Framework may initiate LL stat ops while roaming is
in middle, Which in turn block the call or wait for
timeout hence introducing roaming delay.
This delay can be overcome by avoiding LL stat ops
if it is triggered in between the roaming.
Change-Id: Ie64c8c56f905cc297057e62b69c010cf1e0974ed
CRs-Fixed: 881429
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 53ae178..28d472d 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -1984,6 +1984,7 @@
tSirLLStatsGetReq linkLayerStatsGetReq;
struct net_device *dev = wdev->netdev;
hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
+ hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
int status;
ENTER();
@@ -2000,6 +2001,14 @@
"%s: HDD adapter is Null", __func__);
return -ENODEV;
}
+
+ if (pHddStaCtx == NULL)
+ {
+ hddLog(VOS_TRACE_LEVEL_FATAL,
+ "%s: HddStaCtx is Null", __func__);
+ return -ENODEV;
+ }
+
/* check the LLStats Capability */
if ( (TRUE != pHddCtx->cfg_ini->fEnableLLStats) ||
(TRUE != sme_IsFeatureSupportedByFW(LINK_LAYER_STATS_MEAS)))
@@ -2018,6 +2027,13 @@
return -EINVAL;
}
+ if (VOS_TRUE == pHddStaCtx->hdd_ReassocScenario)
+ {
+ VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO,
+ "%s: Roaming in progress, so unable to proceed this request", __func__);
+ return -EBUSY;
+ }
+
if (nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_LL_STATS_GET_MAX,
(struct nlattr *)data,
data_len, qca_wlan_vendor_ll_get_policy))