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qcacld-3.0: Allocate scan filter memory from dynamic memory pool

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csr_scan_get_result API defined 'struct scan_filter' of size
800bytes on stack and larger size memory blocks on stack is not
preferred because the stack size is limited.

Modified the memory allocation to dyanmic for scan filter.

Change-Id: I40cb0d97e0451d50aca3e9485327a4ce709e6020
CRs-Fixed: 2332496
This commit is contained in:
Sandeep Puligilla 2018-10-22 15:43:48 -07:00 • committed by nshrivas
commit 8345f3d0ec
1 changed files with 35 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

47
core/sme/src/csr/csr_api_scan.c
View file

@ -2950,7 +2950,7 @@ QDF_STATUS csr_scan_get_result(tpAniSirGlobal mac_ctx,
QDF_STATUS status;
struct scan_result_list *ret_list = NULL;
qdf_list_t *list = NULL;
struct scan_filter filter = {0};
struct scan_filter *filter = NULL;
struct wlan_objmgr_pdev *pdev = NULL;
if (results)
@ -2958,14 +2958,19 @@ QDF_STATUS csr_scan_get_result(tpAniSirGlobal mac_ctx,
pdev = wlan_objmgr_get_pdev_by_id(mac_ctx->psoc,
0, WLAN_LEGACY_MAC_ID);
if (!pdev) {
sme_err("pdev is NULL");
return QDF_STATUS_E_INVAL;
}
if (pFilter) {
status = csr_prepare_scan_filter(mac_ctx, pFilter, &filter);
filter = qdf_mem_malloc(sizeof(*filter));
if (!filter) {
status = QDF_STATUS_E_NOMEM;
goto error;
}
status = csr_prepare_scan_filter(mac_ctx, pFilter, filter);
if (QDF_IS_STATUS_ERROR(status)) {
sme_err("Prepare filter failed");
goto error;
@ -2973,7 +2978,7 @@ QDF_STATUS csr_scan_get_result(tpAniSirGlobal mac_ctx,
}
list = ucfg_scan_get_result(pdev,
pFilter ? &filter : NULL);
pFilter ? filter : NULL);
if (list)
sme_debug("num_entries %d", qdf_list_size(list));
@ -3012,6 +3017,8 @@ QDF_STATUS csr_scan_get_result(tpAniSirGlobal mac_ctx,
}
error:
if (filter)
qdf_mem_free(filter);
if (list)
ucfg_scan_purge_results(list);
if (pdev)
@ -3114,23 +3121,39 @@ QDF_STATUS csr_scan_flush_result(tpAniSirGlobal mac_ctx)
QDF_STATUS csr_scan_flush_selective_result(tpAniSirGlobal mac_ctx,
bool flush_p2p)
{
struct scan_filter filter = {0};
struct scan_filter *filter;
QDF_STATUS status;
filter.p2p_results = flush_p2p;
return csr_flush_scan_results(mac_ctx, &filter);
filter = qdf_mem_malloc(sizeof(*filter));
if (!filter) {
status = QDF_STATUS_E_NOMEM;
goto end;
}
filter->p2p_results = flush_p2p;
status = csr_flush_scan_results(mac_ctx, filter);
if (filter)
qdf_mem_free(filter);
end:
return status;
}
static inline void csr_flush_bssid(tpAniSirGlobal mac_ctx,
uint8_t *bssid)
{
struct scan_filter filter = {0};
struct scan_filter *filter;
filter.num_of_bssid = 1;
qdf_mem_copy(filter.bssid_list[0].bytes,
bssid, QDF_MAC_ADDR_SIZE);
filter = qdf_mem_malloc(sizeof(*filter));
if (!filter)
return;
csr_flush_scan_results(mac_ctx, &filter);
filter->num_of_bssid = 1;
qdf_mem_copy(filter->bssid_list[0].bytes,
bssid, QDF_MAC_ADDR_SIZE);
csr_flush_scan_results(mac_ctx, filter);
sme_debug("Removed BSS entry:%pM", bssid);
if (filter)
qdf_mem_free(filter);
}
void csr_scan_flush_bss_entry(tpAniSirGlobal mac_ctx,