diff --git a/core/sme/inc/sme_inside.h b/core/sme/inc/sme_inside.h
index 7434d5cf91ae..36b9bfa65bb6 100644
--- a/core/sme/inc/sme_inside.h
+++ b/core/sme/inc/sme_inside.h
@@ -179,7 +179,6 @@ 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);
diff --git a/core/sme/src/csr/csr_api_roam.c b/core/sme/src/csr/csr_api_roam.c
index 6cf690c30b4f..2be27613935d 100644
--- a/core/sme/src/csr/csr_api_roam.c
+++ b/core/sme/src/csr/csr_api_roam.c
@@ -2808,28 +2808,6 @@ 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)
 {
@@ -13698,8 +13676,8 @@ 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;
 		}