diff --git a/umac/dfs/dispatcher/inc/wlan_dfs_utils_api.h b/umac/dfs/dispatcher/inc/wlan_dfs_utils_api.h
index 3dbb9f60c586..48f9bbe485c6 100644
--- a/umac/dfs/dispatcher/inc/wlan_dfs_utils_api.h
+++ b/umac/dfs/dispatcher/inc/wlan_dfs_utils_api.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2020 The Linux Foundation. All rights reserved.
  *
  *
  * Permission to use, copy, modify, and/or distribute this software for
@@ -645,21 +645,6 @@ static inline bool utils_is_dfs_chan_for_freq(struct wlan_objmgr_pdev *pdev,
 }
 #endif
 
-/**
- * utils_is_dfs_ch() - is channel dfs.
- * @pdev: pdev handler.
- *
- * is channel dfs.
- *
- * Return: True if channel dfs, else false.
- */
-#ifdef CONFIG_CHAN_NUM_API
-static inline bool utils_is_dfs_ch(struct wlan_objmgr_pdev *pdev, uint32_t chan)
-{
-	return wlan_reg_is_dfs_ch(pdev, chan);
-}
-#endif
-
 /**
  * utils_is_dfs_cfreq2_ch() - is channel dfs cfreq2.
  * @pdev: pdev handler.
diff --git a/umac/regulatory/dispatcher/inc/wlan_reg_services_api.h b/umac/regulatory/dispatcher/inc/wlan_reg_services_api.h
index dca8d3b58138..0d6c6f81e5d4 100644
--- a/umac/regulatory/dispatcher/inc/wlan_reg_services_api.h
+++ b/umac/regulatory/dispatcher/inc/wlan_reg_services_api.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -682,15 +682,6 @@ void wlan_reg_update_nol_ch(struct wlan_objmgr_pdev *pdev,
 			    uint8_t num_ch,
 			    bool nol_ch);
 
-/**
- * wlan_reg_is_dfs_ch () - Checks the channel state for DFS
- * @pdev: pdev ptr
- * @chan: channel
- *
- * Return: true or false
- */
-bool wlan_reg_is_dfs_ch(struct wlan_objmgr_pdev *pdev, uint8_t chan);
-
 /**
  * wlan_reg_is_dsrc_chan () - Checks if the channel is dsrc channel or not
  * @pdev: pdev ptr
diff --git a/umac/regulatory/dispatcher/src/wlan_reg_services_api.c b/umac/regulatory/dispatcher/src/wlan_reg_services_api.c
index b21ec96fcf84..04fa78e76b17 100644
--- a/umac/regulatory/dispatcher/src/wlan_reg_services_api.c
+++ b/umac/regulatory/dispatcher/src/wlan_reg_services_api.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
  *
  *
  * Permission to use, copy, modify, and/or distribute this software for
@@ -488,12 +488,6 @@ void wlan_reg_update_nol_history_ch(struct wlan_objmgr_pdev *pdev,
 	reg_update_nol_history_ch(pdev, ch_list, num_ch, nol_history_ch);
 }
 
-bool wlan_reg_is_dfs_ch(struct wlan_objmgr_pdev *pdev,
-			uint8_t chan)
-{
-	return reg_is_dfs_ch(pdev, chan);
-}
-
 bool wlan_reg_is_passive_or_disable_ch(struct wlan_objmgr_pdev *pdev,
 				       uint8_t chan)
 {
diff --git a/umac/wifi_pos/src/wifi_pos_main.c b/umac/wifi_pos/src/wifi_pos_main.c
index e619d2de8ae6..c0e21c6422cb 100644
--- a/umac/wifi_pos/src/wifi_pos_main.c
+++ b/umac/wifi_pos/src/wifi_pos_main.c
@@ -412,7 +412,7 @@ static QDF_STATUS wifi_pos_process_ch_info_req(struct wlan_objmgr_psoc *psoc,
 		ch_info[idx].band_center_freq1 = ch_info[idx].mhz;
 		ch_info[idx].band_center_freq2 = 0;
 		ch_info[idx].info = 0;
-		if (wlan_reg_is_dfs_ch(pdev, valid_channel_list[idx]))
+		if (wlan_reg_is_dfs_for_freq(pdev, ch_info[idx].mhz))
 			WIFI_POS_SET_DFS(ch_info[idx].info);
 
 		wifi_update_channel_bw_info(psoc, pdev,