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qcacld-3.0: Purge neighbor report cache if unsolicited

Browse source 
Propagation from qcacld-2.0 to qcacld-3.0

If AP sends unsolicited neighbor reports to station proactively,
the cached neighbor report list will grow longer and longer.

Fix it by purging the cache on reception of unsolicited neighbor report.

Change-Id: I2458607041caeb84cb553aa1b9fc6f4029a5cf1c
CRs-Fixed: 2419615
This commit is contained in:
Will Huang 2019-03-18 16:39:09 +08:00 • committed by nshrivas
commit 7fa97f1cf4
1 changed files with 26 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

59
core/sme/src/rrm/sme_rrm.c
View file

@ -1289,71 +1289,61 @@ static void rrm_store_neighbor_rpt_by_roam_score(struct mac_context *mac,
* Return: QDF_STATUS_SUCCESS - Validation is successful
*/
static QDF_STATUS sme_rrm_process_neighbor_report(struct mac_context *mac,
void *pMsgBuf)
void *msg_buf)
{
QDF_STATUS status = QDF_STATUS_SUCCESS;
tpSirNeighborReportInd pNeighborRpt = (tpSirNeighborReportInd) pMsgBuf;
tpRrmNeighborReportDesc pNeighborReportDesc;
tpSirNeighborReportInd neighbor_rpt = (tpSirNeighborReportInd)msg_buf;
tpRrmNeighborReportDesc neighbor_rpt_desc;
uint8_t i = 0;
QDF_STATUS qdf_status = QDF_STATUS_SUCCESS;
uint32_t sessionId;
/* Get the session id */
status =
csr_roam_get_session_id_from_bssid(mac,
(struct qdf_mac_addr *) pNeighborRpt->bssId,
&sessionId);
if (QDF_IS_STATUS_SUCCESS(status)) {
#ifdef FEATURE_WLAN_ESE
/* Clear the cache for ESE. */
if (csr_roam_is_ese_assoc(mac, sessionId)) {
rrm_ll_purge_neighbor_cache(mac,
&mac->rrm.rrmSmeContext.
neighborReportCache);
}
#endif
}
/* Purge the cache on reception of unsolicited neighbor report */
if (!mac->rrm.rrmSmeContext.neighborReqControlInfo.
isNeighborRspPending)
rrm_ll_purge_neighbor_cache(mac,
&mac->rrm.rrmSmeContext.
neighborReportCache);
for (i = 0; i < pNeighborRpt->numNeighborReports; i++) {
pNeighborReportDesc =
for (i = 0; i < neighbor_rpt->numNeighborReports; i++) {
neighbor_rpt_desc =
qdf_mem_malloc(sizeof(tRrmNeighborReportDesc));
if (!pNeighborReportDesc) {
if (!neighbor_rpt_desc) {
status = QDF_STATUS_E_NOMEM;
goto end;
}
pNeighborReportDesc->pNeighborBssDescription =
neighbor_rpt_desc->pNeighborBssDescription =
qdf_mem_malloc(sizeof(tSirNeighborBssDescription));
if (!pNeighborReportDesc->pNeighborBssDescription) {
qdf_mem_free(pNeighborReportDesc);
if (!neighbor_rpt_desc->pNeighborBssDescription) {
qdf_mem_free(neighbor_rpt_desc);
status = QDF_STATUS_E_NOMEM;
goto end;
}
qdf_mem_copy(pNeighborReportDesc->pNeighborBssDescription,
&pNeighborRpt->sNeighborBssDescription[i],
qdf_mem_copy(neighbor_rpt_desc->pNeighborBssDescription,
&neighbor_rpt->sNeighborBssDescription[i],
sizeof(tSirNeighborBssDescription));
sme_debug("Received neighbor report with Neighbor BSSID: "
MAC_ADDRESS_STR,
MAC_ADDR_ARRAY(
pNeighborRpt->sNeighborBssDescription[i].bssId));
neighbor_rpt->sNeighborBssDescription[i].bssId));
rrm_calculate_neighbor_ap_roam_score(mac, pNeighborReportDesc);
rrm_calculate_neighbor_ap_roam_score(mac, neighbor_rpt_desc);
if (pNeighborReportDesc->roamScore > 0) {
if (neighbor_rpt_desc->roamScore > 0) {
rrm_store_neighbor_rpt_by_roam_score(mac,
pNeighborReportDesc);
neighbor_rpt_desc);
} else {
sme_err("Roam score of BSSID " MAC_ADDRESS_STR
" is 0, Ignoring..",
MAC_ADDR_ARRAY(pNeighborRpt->
MAC_ADDR_ARRAY(neighbor_rpt->
sNeighborBssDescription[i].
bssId));
qdf_mem_free(
pNeighborReportDesc->pNeighborBssDescription);
qdf_mem_free(pNeighborReportDesc);
neighbor_rpt_desc->pNeighborBssDescription);
qdf_mem_free(neighbor_rpt_desc);
}
}
end:
@ -1362,6 +1352,7 @@ end:
qdf_status = QDF_STATUS_E_FAILURE;
rrm_indicate_neighbor_report_result(mac, qdf_status);
return status;
}