qcacld-3.0: Validate freq against regulatory list

When CSR issues a start BSS message, it validates the requested start
freq against the internal CSR channel list. There could be a scenario
where this list is not updated and the validation fails. Check this freq
against the regulatory channel list instead.

Change-Id: I56b29fa6249a9245bb968c95c14e730b976f0f8d
CRs-fixed: 2884695

core/sme/inc/sme_inside.h

@@ -181,7 +181,6 @@ void csr_roam_process_get_disconnect_stats_command(struct mac_context *mac,
 void csr_reinit_roam_cmd(struct mac_context *mac, tSmeCmd *pCommand);
 void csr_reinit_wm_status_change_cmd(struct mac_context *mac,
 				     tSmeCmd *pCommand);
-QDF_STATUS csr_is_valid_channel(struct mac_context *mac, uint32_t freq);
 
 QDF_STATUS sme_acquire_global_lock(struct sme_context *sme);
 QDF_STATUS sme_release_global_lock(struct sme_context *sme);

core/sme/src/csr/csr_api_roam.c

@@ -2225,28 +2225,6 @@ void csr_prune_channel_list_for_mode(struct mac_context *mac_ctx,
 }
 
 #define INFRA_AP_DEFAULT_CHAN_FREQ 2437
-QDF_STATUS csr_is_valid_channel(struct mac_context *mac, uint32_t freq)
-{
-	uint8_t index = 0;
-	QDF_STATUS status = QDF_STATUS_E_NOSUPPORT;
-
-	/* regulatory check */
-	for (index = 0; index < mac->scan.base_channels.numChannels;
-	     index++) {
-		if (mac->scan.base_channels.channel_freq_list[index] ==
-				freq){
-			status = QDF_STATUS_SUCCESS;
-			break;
-		}
-	}
-
-	if (QDF_STATUS_SUCCESS != status) {
-		QDF_TRACE(QDF_MODULE_ID_SME, QDF_TRACE_LEVEL_ERROR,
-			 FL("freq %d is not available"), freq);
-	}
-
-	return status;
-}
 
 QDF_STATUS csr_get_channel_and_power_list(struct mac_context *mac)
 {
@@ -12396,8 +12374,8 @@ QDF_STATUS csr_roam_issue_start_bss(struct mac_context *mac, uint32_t sessionId,
 	pParam->ApUapsdEnable = pProfile->ApUapsdEnable;
 	pParam->ssidHidden = pProfile->SSIDs.SSIDList[0].ssidHidden;
 	if (CSR_IS_INFRA_AP(pProfile) && (pParam->operation_chan_freq != 0)) {
-		if (csr_is_valid_channel(mac, pParam->operation_chan_freq) !=
-		    QDF_STATUS_SUCCESS) {
+		if (!wlan_reg_is_freq_present_in_cur_chan_list(mac->pdev,
+						pParam->operation_chan_freq)) {
 			pParam->operation_chan_freq = INFRA_AP_DEFAULT_CHAN_FREQ;
 			pParam->ch_params.ch_width = CH_WIDTH_20MHZ;
 		}