[PATCH 0/5] staging: r8188eu: remove GetHalDefVar8188EUsb()

[PATCH 0/5] staging: r8188eu: remove GetHalDefVar8188EUsb()

[Michael Straube]

This series removes the function GetHalDefVar8188EUsb(). This is part
of the ongoing effort to get rid of the unwanted hal layer.

Tested on x86_64 with Inter-Tech DMG-02.

Michael Straube (5):
  staging: r8188eu: remove HAL_DEF_IS_SUPPORT_ANT_DIV
  staging: r8188eu: use support_ant_div()
  staging: r8188eu: remove dead code
  staging: r8188eu: remove HAL_DEF_CURRENT_ANTENNA
  staging: r8188eu: remove GetHalDefVar8188EUsb()

 drivers/staging/r8188eu/core/rtw_cmd.c       |  4 +--
 drivers/staging/r8188eu/core/rtw_mlme.c      | 11 ++----
 drivers/staging/r8188eu/core/rtw_mlme_ext.c  |  2 +-
 drivers/staging/r8188eu/hal/rtl8188e_dm.c    |  8 ++---
 drivers/staging/r8188eu/hal/usb_halinit.c    | 36 ++++++++------------
 drivers/staging/r8188eu/include/hal_intf.h   |  6 ++--
 drivers/staging/r8188eu/os_dep/ioctl_linux.c |  8 +----
 7 files changed, 26 insertions(+), 49 deletions(-)

-- 
2.35.1

[PATCH 1/5] staging: r8188eu: remove HAL_DEF_IS_SUPPORT_ANT_DIV

[Michael Straube]

In order to get rid of the function GetHalDefVar8188EUsb(), remove
the HAL_DEF_IS_SUPPORT_ANT_DIV case from it and move the functionality
into a new function. This is part of the ongoing effort to get rid of
the unwanted hal layer.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_cmd.c     |  4 +---
 drivers/staging/r8188eu/core/rtw_mlme.c    |  4 +---
 drivers/staging/r8188eu/hal/usb_halinit.c  | 10 +++++++---
 drivers/staging/r8188eu/include/hal_intf.h |  3 ++-
 4 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_cmd.c b/drivers/staging/r8188eu/core/rtw_cmd.c
index 8b24330e97c1..c286485e6a40 100644
--- a/drivers/staging/r8188eu/core/rtw_cmd.c
+++ b/drivers/staging/r8188eu/core/rtw_cmd.c
@@ -1099,11 +1099,9 @@ u8 rtw_antenna_select_cmd(struct adapter *padapter, u8 antenna, u8 enqueue)
 	struct cmd_obj		*ph2c;
 	struct drvextra_cmd_parm	*pdrvextra_cmd_parm;
 	struct cmd_priv	*pcmdpriv = &padapter->cmdpriv;
-	u8	support_ant_div;
 	u8	res = _SUCCESS;
 
-	GetHalDefVar8188EUsb(padapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &support_ant_div);
-	if (!support_ant_div)
+	if (!support_ant_div(padapter))
 		return res;
 
 	if (enqueue) {
diff --git a/drivers/staging/r8188eu/core/rtw_mlme.c b/drivers/staging/r8188eu/core/rtw_mlme.c
index f94b1536a177..b6ed5fb5b281 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme.c
@@ -1458,7 +1458,6 @@ int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
 	struct __queue *queue	= &pmlmepriv->scanned_queue;
 	struct	wlan_network	*pnetwork = NULL;
 	struct	wlan_network	*candidate = NULL;
-	u8	supp_ant_div = false;
 
 	spin_lock_bh(&pmlmepriv->scanned_queue.lock);
 	phead = get_list_head(queue);
@@ -1485,8 +1484,7 @@ int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
 		rtw_free_assoc_resources(adapter, 0);
 	}
 
-	GetHalDefVar8188EUsb(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &supp_ant_div);
-	if (supp_ant_div) {
+	if (support_ant_div(adapter)) {
 		u8 cur_ant;
 		GetHalDefVar8188EUsb(adapter, HAL_DEF_CURRENT_ANTENNA, &cur_ant);
 	}
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 4bc6b08fb282..31ec88b7a400 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -481,6 +481,13 @@ static void _BBTurnOnBlock(struct adapter *Adapter)
 	rtl8188e_PHY_SetBBReg(Adapter, rFPGA0_RFMOD, bOFDMEn, 0x1);
 }
 
+bool support_ant_div(struct adapter *adapter)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+
+	return haldata->AntDivCfg != 0;
+}
+
 static void _InitAntenna_Selection(struct adapter *Adapter)
 {
 	struct hal_data_8188e *haldata = &Adapter->haldata;
@@ -1204,9 +1211,6 @@ void GetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariab
 	struct hal_data_8188e *haldata = &Adapter->haldata;
 
 	switch (eVariable) {
-	case HAL_DEF_IS_SUPPORT_ANT_DIV:
-		*((u8 *)pValue) = (haldata->AntDivCfg == 0) ? false : true;
-		break;
 	case HAL_DEF_CURRENT_ANTENNA:
 		*((u8 *)pValue) = haldata->CurAntenna;
 		break;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index e222ab89bfc5..2a82bc392b87 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -28,7 +28,6 @@ enum hw_variables {
 };
 
 enum hal_def_variable {
-	HAL_DEF_IS_SUPPORT_ANT_DIV,
 	HAL_DEF_CURRENT_ANTENNA,
 	HAL_DEF_DBG_DM_FUNC,/* for dbg */
 };
@@ -64,6 +63,8 @@ uint rtw_hal_init(struct adapter *padapter);
 uint rtw_hal_deinit(struct adapter *padapter);
 void rtw_hal_stop(struct adapter *padapter);
 
+bool support_ant_div(struct adapter *adapter);
+
 u32 rtl8188eu_hal_init(struct adapter *Adapter);
 u32 rtl8188eu_hal_deinit(struct adapter *Adapter);
 
-- 
2.35.1

Re: [PATCH 1/5] staging: r8188eu: remove HAL_DEF_IS_SUPPORT_ANT_DIV

[Greg KH]

On Sun, Apr 03, 2022 at 06:52:51PM +0200, Michael Straube wrote:
> In order to get rid of the function GetHalDefVar8188EUsb(), remove
> the HAL_DEF_IS_SUPPORT_ANT_DIV case from it and move the functionality
> into a new function. This is part of the ongoing effort to get rid of
> the unwanted hal layer.
> 
> Signed-off-by: Michael Straube <straube.linux@gmail.com>
> ---
>  drivers/staging/r8188eu/core/rtw_cmd.c     |  4 +---
>  drivers/staging/r8188eu/core/rtw_mlme.c    |  4 +---
>  drivers/staging/r8188eu/hal/usb_halinit.c  | 10 +++++++---
>  drivers/staging/r8188eu/include/hal_intf.h |  3 ++-
>  4 files changed, 11 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/staging/r8188eu/core/rtw_cmd.c b/drivers/staging/r8188eu/core/rtw_cmd.c
> index 8b24330e97c1..c286485e6a40 100644
> --- a/drivers/staging/r8188eu/core/rtw_cmd.c
> +++ b/drivers/staging/r8188eu/core/rtw_cmd.c
> @@ -1099,11 +1099,9 @@ u8 rtw_antenna_select_cmd(struct adapter *padapter, u8 antenna, u8 enqueue)
>  	struct cmd_obj		*ph2c;
>  	struct drvextra_cmd_parm	*pdrvextra_cmd_parm;
>  	struct cmd_priv	*pcmdpriv = &padapter->cmdpriv;
> -	u8	support_ant_div;
>  	u8	res = _SUCCESS;
>  
> -	GetHalDefVar8188EUsb(padapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &support_ant_div);
> -	if (!support_ant_div)
> +	if (!support_ant_div(padapter))
>  		return res;
>  
>  	if (enqueue) {
> diff --git a/drivers/staging/r8188eu/core/rtw_mlme.c b/drivers/staging/r8188eu/core/rtw_mlme.c
> index f94b1536a177..b6ed5fb5b281 100644
> --- a/drivers/staging/r8188eu/core/rtw_mlme.c
> +++ b/drivers/staging/r8188eu/core/rtw_mlme.c
> @@ -1458,7 +1458,6 @@ int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
>  	struct __queue *queue	= &pmlmepriv->scanned_queue;
>  	struct	wlan_network	*pnetwork = NULL;
>  	struct	wlan_network	*candidate = NULL;
> -	u8	supp_ant_div = false;
>  
>  	spin_lock_bh(&pmlmepriv->scanned_queue.lock);
>  	phead = get_list_head(queue);
> @@ -1485,8 +1484,7 @@ int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
>  		rtw_free_assoc_resources(adapter, 0);
>  	}
>  
> -	GetHalDefVar8188EUsb(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &supp_ant_div);
> -	if (supp_ant_div) {
> +	if (support_ant_div(adapter)) {
>  		u8 cur_ant;
>  		GetHalDefVar8188EUsb(adapter, HAL_DEF_CURRENT_ANTENNA, &cur_ant);
>  	}
> diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
> index 4bc6b08fb282..31ec88b7a400 100644
> --- a/drivers/staging/r8188eu/hal/usb_halinit.c
> +++ b/drivers/staging/r8188eu/hal/usb_halinit.c
> @@ -481,6 +481,13 @@ static void _BBTurnOnBlock(struct adapter *Adapter)
>  	rtl8188e_PHY_SetBBReg(Adapter, rFPGA0_RFMOD, bOFDMEn, 0x1);
>  }
>  
> +bool support_ant_div(struct adapter *adapter)

That's a very odd function name to add to the kernel's global namespace
:(

Pleas emake it more obvious what this is for, with the driver name as
part of the prefix?

thanks,

greg k-h

Re: [PATCH 1/5] staging: r8188eu: remove HAL_DEF_IS_SUPPORT_ANT_DIV

[Michael Straube]

Hi Greg,

On 4/4/22 16:32, Greg KH wrote:
>> +bool support_ant_div(struct adapter *adapter)
> 
> That's a very odd function name to add to the kernel's global namespace
> :(
> 
> Pleas emake it more obvious what this is for, with the driver name as
> part of the prefix?
> 

Looking again at this I notice it can be made a static function in 
rtw_cmd.c.

I'll rework the series and make the function static with a more
descriptive name.

thanks,
Michael

[PATCH 2/5] staging: r8188eu: use support_ant_div()

[Michael Straube]

Use support_ant_div() instead of checking haldata->AntDivCfg directly.
This improves readability and makes future cleanups, e.g. removing the
hal_data_8188e structure, easier.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/hal/rtl8188e_dm.c | 8 +++-----
 drivers/staging/r8188eu/hal/usb_halinit.c | 2 +-
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/r8188eu/hal/rtl8188e_dm.c b/drivers/staging/r8188eu/hal/rtl8188e_dm.c
index 6d28e3dc0d26..d69327f361aa 100644
--- a/drivers/staging/r8188eu/hal/rtl8188e_dm.c
+++ b/drivers/staging/r8188eu/hal/rtl8188e_dm.c
@@ -33,7 +33,7 @@ static void Update_ODM_ComInfo_88E(struct adapter *Adapter)
 	int i;
 
 	pdmpriv->InitODMFlag = ODM_BB_RSSI_MONITOR;
-	if (hal_data->AntDivCfg)
+	if (support_ant_div(Adapter))
 		pdmpriv->InitODMFlag |= ODM_BB_ANT_DIV;
 
 	dm_odm->SupportAbility = pdmpriv->InitODMFlag;
@@ -102,9 +102,7 @@ void rtl8188e_init_dm_priv(struct adapter *Adapter)
 /*  Compare RSSI for deciding antenna */
 void AntDivCompare8188E(struct adapter *Adapter, struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src)
 {
-	struct hal_data_8188e *hal_data = &Adapter->haldata;
-
-	if (0 != hal_data->AntDivCfg) {
+	if (support_ant_div(Adapter)) {
 		/* select optimum_antenna for before linked =>For antenna diversity */
 		if (dst->Rssi >=  src->Rssi) {/* keep org parameter */
 			src->Rssi = dst->Rssi;
@@ -122,7 +120,7 @@ u8 AntDivBeforeLink8188E(struct adapter *Adapter)
 	struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
 
 	/*  Condition that does not need to use antenna diversity. */
-	if (hal_data->AntDivCfg == 0)
+	if (!support_ant_div(Adapter))
 		return false;
 
 	if (check_fwstate(pmlmepriv, _FW_LINKED))
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 31ec88b7a400..e5b352671ea4 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -492,7 +492,7 @@ static void _InitAntenna_Selection(struct adapter *Adapter)
 {
 	struct hal_data_8188e *haldata = &Adapter->haldata;
 
-	if (haldata->AntDivCfg == 0)
+	if (!support_ant_div(Adapter))
 		return;
 
 	rtw_write32(Adapter, REG_LEDCFG0, rtw_read32(Adapter, REG_LEDCFG0) | BIT(23));
-- 
2.35.1

[PATCH 3/5] staging: r8188eu: remove dead code

[Michael Straube]

In rtw_select_and_join_from_scanned_queue() the local variable
cur_ant is set but never used. Remove this dead code.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_mlme.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme.c b/drivers/staging/r8188eu/core/rtw_mlme.c
index b6ed5fb5b281..24ceb8028f89 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme.c
@@ -1484,11 +1484,6 @@ int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv)
 		rtw_free_assoc_resources(adapter, 0);
 	}
 
-	if (support_ant_div(adapter)) {
-		u8 cur_ant;
-		GetHalDefVar8188EUsb(adapter, HAL_DEF_CURRENT_ANTENNA, &cur_ant);
-	}
-
 	ret = rtw_joinbss_cmd(adapter, candidate);
 
 exit:
-- 
2.35.1

[PATCH 4/5] staging: r8188eu: remove HAL_DEF_CURRENT_ANTENNA

[Michael Straube]

In order to get rid of the function GetHalDefVar8188EUsb(), remove
the HAL_DEF_CURRENT_ANTENNA case from it and move the functionality
into a new function. This is part of the ongoing effort to get rid of
the unwanted hal layer.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_mlme.c     |  4 ++--
 drivers/staging/r8188eu/core/rtw_mlme_ext.c |  2 +-
 drivers/staging/r8188eu/hal/usb_halinit.c   | 10 +++++++---
 drivers/staging/r8188eu/include/hal_intf.h  |  2 +-
 4 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme.c b/drivers/staging/r8188eu/core/rtw_mlme.c
index 24ceb8028f89..84aeb356e485 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme.c
@@ -497,7 +497,7 @@ void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *t
 			/* If there are no more slots, expire the oldest */
 			pnetwork = oldest;
 
-			GetHalDefVar8188EUsb(adapter, HAL_DEF_CURRENT_ANTENNA, &target->PhyInfo.Optimum_antenna);
+			target->PhyInfo.Optimum_antenna = current_antenna(adapter);
 			memcpy(&pnetwork->network, target,  get_wlan_bssid_ex_sz(target));
 			/*  variable initialize */
 			pnetwork->fixed = false;
@@ -520,7 +520,7 @@ void rtw_update_scanned_network(struct adapter *adapter, struct wlan_bssid_ex *t
 
 			bssid_ex_sz = get_wlan_bssid_ex_sz(target);
 			target->Length = bssid_ex_sz;
-			GetHalDefVar8188EUsb(adapter, HAL_DEF_CURRENT_ANTENNA, &target->PhyInfo.Optimum_antenna);
+			target->PhyInfo.Optimum_antenna = current_antenna(adapter);
 			memcpy(&pnetwork->network, target, bssid_ex_sz);
 
 			pnetwork->last_scanned = jiffies;
diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 2c073219c13f..99df084d670a 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -5995,7 +5995,7 @@ u8 collect_bss_info(struct adapter *padapter, struct recv_frame *precv_frame, st
 	bssid->Rssi = precv_frame->attrib.phy_info.recvpower; /*  in dBM.raw data */
 	bssid->PhyInfo.SignalQuality = precv_frame->attrib.phy_info.SignalQuality;/* in percentage */
 	bssid->PhyInfo.SignalStrength = precv_frame->attrib.phy_info.SignalStrength;/* in percentage */
-	GetHalDefVar8188EUsb(padapter, HAL_DEF_CURRENT_ANTENNA,  &bssid->PhyInfo.Optimum_antenna);
+	bssid->PhyInfo.Optimum_antenna = current_antenna(padapter);
 
 	/*  checking SSID */
 	p = rtw_get_ie(bssid->IEs + ie_offset, _SSID_IE_, &len, bssid->IELength - ie_offset);
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index e5b352671ea4..7a7eceaac311 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -488,6 +488,13 @@ bool support_ant_div(struct adapter *adapter)
 	return haldata->AntDivCfg != 0;
 }
 
+u8 current_antenna(struct adapter *adapter)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+
+	return haldata->CurAntenna;
+}
+
 static void _InitAntenna_Selection(struct adapter *Adapter)
 {
 	struct hal_data_8188e *haldata = &Adapter->haldata;
@@ -1211,9 +1218,6 @@ void GetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariab
 	struct hal_data_8188e *haldata = &Adapter->haldata;
 
 	switch (eVariable) {
-	case HAL_DEF_CURRENT_ANTENNA:
-		*((u8 *)pValue) = haldata->CurAntenna;
-		break;
 	case HAL_DEF_DBG_DM_FUNC:
 		*((u32 *)pValue) = haldata->odmpriv.SupportAbility;
 		break;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index 2a82bc392b87..92ba276031b0 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -28,7 +28,6 @@ enum hw_variables {
 };
 
 enum hal_def_variable {
-	HAL_DEF_CURRENT_ANTENNA,
 	HAL_DEF_DBG_DM_FUNC,/* for dbg */
 };
 
@@ -64,6 +63,7 @@ uint rtw_hal_deinit(struct adapter *padapter);
 void rtw_hal_stop(struct adapter *padapter);
 
 bool support_ant_div(struct adapter *adapter);
+u8 current_antenna(struct adapter *adapter);
 
 u32 rtl8188eu_hal_init(struct adapter *Adapter);
 u32 rtl8188eu_hal_deinit(struct adapter *Adapter);
-- 
2.35.1

[PATCH 5/5] staging: r8188eu: remove GetHalDefVar8188EUsb()

[Michael Straube]

The local variable odm_flag in rtw_dbg_port() is set but never used.
This are the last two remaining calls to GetHalDefVar8188EUsb(). Both
calls can be removed and we finally can remove GetHalDefVar8188EUsb()
itself. This is part of the ongoing effort to get rid of the unwanted
hal layer.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/hal/usb_halinit.c    | 14 --------------
 drivers/staging/r8188eu/include/hal_intf.h   |  1 -
 drivers/staging/r8188eu/os_dep/ioctl_linux.c |  8 +-------
 3 files changed, 1 insertion(+), 22 deletions(-)

diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 7a7eceaac311..028ccce2c282 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1212,20 +1212,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 
 }
 
-/* Query setting of specified variable. */
-void GetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariable, void *pValue)
-{
-	struct hal_data_8188e *haldata = &Adapter->haldata;
-
-	switch (eVariable) {
-	case HAL_DEF_DBG_DM_FUNC:
-		*((u32 *)pValue) = haldata->odmpriv.SupportAbility;
-		break;
-	default:
-		break;
-	}
-}
-
 /* Change default setting of specified variable. */
 void SetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariable, void *pValue)
 {
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index 92ba276031b0..c24059bab981 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -52,7 +52,6 @@ int rtl8188e_IOL_exec_cmds_sync(struct adapter *adapter,
 				struct xmit_frame *xmit_frame, u32 max_wating_ms, u32 bndy_cnt);
 
 void SetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariable, void *pValue);
-void GetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariable, void *pValue);
 
 unsigned int rtl8188eu_inirp_init(struct adapter *Adapter);
 
diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index d127cebb6eae..b6851628e4d2 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -3675,22 +3675,16 @@ static int rtw_dbg_port(struct net_device *dev,
 			break;
 		case 0xee:/* turn on/off dynamic funcs */
 			{
-				u32 odm_flag;
-
-				if (0xf == extra_arg) {
-					GetHalDefVar8188EUsb(padapter, HAL_DEF_DBG_DM_FUNC, &odm_flag);
-				} else {
+				if (extra_arg != 0xf) {
 					/*	extra_arg = 0  - disable all dynamic func
 						extra_arg = 1  - disable DIG
 						extra_arg = 2  - disable tx power tracking
 						extra_arg = 3  - turn on all dynamic func
 					*/
 					SetHalDefVar8188EUsb(padapter, HAL_DEF_DBG_DM_FUNC, &extra_arg);
-					GetHalDefVar8188EUsb(padapter, HAL_DEF_DBG_DM_FUNC, &odm_flag);
 				}
 			}
 			break;
-
 		case 0xfd:
 			rtw_write8(padapter, 0xc50, arg);
 			rtw_write8(padapter, 0xc58, arg);
-- 
2.35.1