[PATCH 0/5] staging: r8188eu: SetHwReg8188EU() cleanups

[PATCH 0/5] staging: r8188eu: SetHwReg8188EU() cleanups

[Michael Straube]

This series removes some more cases from the unwanted function
SetHwReg8188EU().

Tested on x86_64 with Inter-Tech DMG-02.

Michael Straube (5):
  staging: r8188eu: remove HW_VAR_BASIC_RATE from SetHwReg8188EU()
  staging: r8188eu: remove HW_VAR_DM_FUNC_OP from SetHwReg8188EU()
  staging: r8188eu: remove HW_VAR_DM_FLAG from SetHwReg8188EU()
  staging: r8188eu: remove HW_VAR_DM_FUNC_RESET from SetHwReg8188EU()
  staging: r8188eu: remove HW_VAR_DM_FUNC_CLR from SetHwReg8188EU()

 drivers/staging/r8188eu/core/rtw_mlme_ext.c   | 25 +++++++--
 drivers/staging/r8188eu/core/rtw_wlan_util.c  | 51 +++++++++++++++--
 drivers/staging/r8188eu/hal/usb_halinit.c     | 55 -------------------
 drivers/staging/r8188eu/include/hal_intf.h    |  5 --
 .../staging/r8188eu/include/rtw_mlme_ext.h    |  1 +
 drivers/staging/r8188eu/os_dep/ioctl_linux.c  | 10 +++-
 6 files changed, 77 insertions(+), 70 deletions(-)

-- 
2.36.1

[PATCH 1/5] staging: r8188eu: remove HW_VAR_BASIC_RATE from SetHwReg8188EU()

[Michael Straube]

Remove the HW_VAR_BASIC_RATE case from SetHwReg8188EU() and move the
functionality to a separate function. This is part of the ongoing
effort to get rid of SetHwReg8188EU().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_mlme_ext.c   |  2 +-
 drivers/staging/r8188eu/core/rtw_wlan_util.c  | 41 ++++++++++++++++++-
 drivers/staging/r8188eu/hal/usb_halinit.c     | 37 -----------------
 drivers/staging/r8188eu/include/hal_intf.h    |  1 -
 .../staging/r8188eu/include/rtw_mlme_ext.h    |  1 +
 5 files changed, 42 insertions(+), 40 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 21485c57dc3f..a16996982b58 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -6681,7 +6681,7 @@ void mlmeext_joinbss_event_callback(struct adapter *padapter, int join_res)
 	/*  update IOT-releated issue */
 	update_IOT_info(padapter);
 
-	SetHwReg8188EU(padapter, HW_VAR_BASIC_RATE, cur_network->SupportedRates);
+	rtw_set_basic_rate(padapter, cur_network->SupportedRates);
 
 	/* BCN interval */
 	rtw_write16(padapter, REG_BCN_INTERVAL, pmlmeinfo->bcn_interval);
diff --git a/drivers/staging/r8188eu/core/rtw_wlan_util.c b/drivers/staging/r8188eu/core/rtw_wlan_util.c
index aa6b549fd54d..60c49e161c12 100644
--- a/drivers/staging/r8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/r8188eu/core/rtw_wlan_util.c
@@ -1265,6 +1265,45 @@ void set_sta_rate(struct adapter *padapter, struct sta_info *psta)
 	enable_rate_adaptive(padapter, psta->mac_id);
 }
 
+void rtw_set_basic_rate(struct adapter *adapter, u8 *rates)
+{
+	u16 BrateCfg = 0;
+	u8 RateIndex = 0;
+	int res;
+	u8 reg;
+
+	/*  2007.01.16, by Emily */
+	/*  Select RRSR (in Legacy-OFDM and CCK) */
+	/*  For 8190, we select only 24M, 12M, 6M, 11M, 5.5M, 2M, and 1M from the Basic rate. */
+	/*  We do not use other rates. */
+	HalSetBrateCfg(adapter, rates, &BrateCfg);
+
+	/* 2011.03.30 add by Luke Lee */
+	/* CCK 2M ACK should be disabled for some BCM and Atheros AP IOT */
+	/* because CCK 2M has poor TXEVM */
+	/* CCK 5.5M & 11M ACK should be enabled for better performance */
+
+	BrateCfg = (BrateCfg | 0xd) & 0x15d;
+
+	BrateCfg |= 0x01; /*  default enable 1M ACK rate */
+	/*  Set RRSR rate table. */
+	rtw_write8(adapter, REG_RRSR, BrateCfg & 0xff);
+	rtw_write8(adapter, REG_RRSR + 1, (BrateCfg >> 8) & 0xff);
+	res = rtw_read8(adapter, REG_RRSR + 2, &reg);
+	if (res)
+		return;
+
+	rtw_write8(adapter, REG_RRSR + 2, reg & 0xf0);
+
+	/*  Set RTS initial rate */
+	while (BrateCfg > 0x1) {
+		BrateCfg = (BrateCfg >> 1);
+		RateIndex++;
+	}
+	/*  Ziv - Check */
+	rtw_write8(adapter, REG_INIRTS_RATE_SEL, RateIndex);
+}
+
 /*  Update RRSR and Rate for USERATE */
 void update_tx_basic_rate(struct adapter *padapter, u8 wirelessmode)
 {
@@ -1290,7 +1329,7 @@ void update_tx_basic_rate(struct adapter *padapter, u8 wirelessmode)
 	else
 		update_mgnt_tx_rate(padapter, IEEE80211_OFDM_RATE_6MB);
 
-	SetHwReg8188EU(padapter, HW_VAR_BASIC_RATE, supported_rates);
+	rtw_set_basic_rate(padapter, supported_rates);
 }
 
 unsigned char check_assoc_AP(u8 *pframe, uint len)
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 1a08de85a6ae..97893543d861 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1071,43 +1071,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 	case HW_VAR_SET_OPMODE:
 		hw_var_set_opmode(Adapter, val);
 		break;
-	case HW_VAR_BASIC_RATE:
-		{
-			u16 BrateCfg = 0;
-			u8 RateIndex = 0;
-
-			/*  2007.01.16, by Emily */
-			/*  Select RRSR (in Legacy-OFDM and CCK) */
-			/*  For 8190, we select only 24M, 12M, 6M, 11M, 5.5M, 2M, and 1M from the Basic rate. */
-			/*  We do not use other rates. */
-			HalSetBrateCfg(Adapter, val, &BrateCfg);
-
-			/* 2011.03.30 add by Luke Lee */
-			/* CCK 2M ACK should be disabled for some BCM and Atheros AP IOT */
-			/* because CCK 2M has poor TXEVM */
-			/* CCK 5.5M & 11M ACK should be enabled for better performance */
-
-			BrateCfg = (BrateCfg | 0xd) & 0x15d;
-
-			BrateCfg |= 0x01; /*  default enable 1M ACK rate */
-			/*  Set RRSR rate table. */
-			rtw_write8(Adapter, REG_RRSR, BrateCfg & 0xff);
-			rtw_write8(Adapter, REG_RRSR + 1, (BrateCfg >> 8) & 0xff);
-			res = rtw_read8(Adapter, REG_RRSR + 2, &reg);
-			if (res)
-				return;
-
-			rtw_write8(Adapter, REG_RRSR + 2, reg & 0xf0);
-
-			/*  Set RTS initial rate */
-			while (BrateCfg > 0x1) {
-				BrateCfg = (BrateCfg >> 1);
-				RateIndex++;
-			}
-			/*  Ziv - Check */
-			rtw_write8(Adapter, REG_INIRTS_RATE_SEL, RateIndex);
-		}
-		break;
 	case HW_VAR_CORRECT_TSF:
 		{
 			u64	tsf;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index b81144932d9a..3e0ee33aa131 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -10,7 +10,6 @@
 
 enum hw_variables {
 	HW_VAR_SET_OPMODE,
-	HW_VAR_BASIC_RATE,
 	HW_VAR_CORRECT_TSF,
 	HW_VAR_MLME_SITESURVEY,
 	HW_VAR_DM_FLAG,
diff --git a/drivers/staging/r8188eu/include/rtw_mlme_ext.h b/drivers/staging/r8188eu/include/rtw_mlme_ext.h
index 56c0e584bb6c..3cc475aa912a 100644
--- a/drivers/staging/r8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/r8188eu/include/rtw_mlme_ext.h
@@ -455,6 +455,7 @@ int rtw_check_bcn_info(struct adapter  *Adapter, u8 *pframe, u32 packet_len);
 void update_IOT_info(struct adapter *padapter);
 void update_capinfo(struct adapter *adapter, u16 updatecap);
 void update_wireless_mode(struct adapter *padapter);
+void rtw_set_basic_rate(struct adapter *adapter, u8 *rates);
 void update_tx_basic_rate(struct adapter *padapter, u8 modulation);
 void update_bmc_sta_support_rate(struct adapter *padapter, u32 mac_id);
 int update_sta_support_rate(struct adapter *padapter, u8 *pvar_ie,
-- 
2.36.1

[PATCH 2/5] staging: r8188eu: remove HW_VAR_DM_FUNC_OP from SetHwReg8188EU()

[Michael Straube]

Remove the HW_VAR_DM_FUNC_OP case from SetHwReg8188EU() and move the
functionality to the functions that call SetHwReg8188EU() with
HW_VAR_DM_FUNC_OP. This is part of the ongoing effort to get rid of
SetHwReg8188EU().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_wlan_util.c | 10 ++++++----
 drivers/staging/r8188eu/hal/usb_halinit.c    |  6 ------
 drivers/staging/r8188eu/include/hal_intf.h   |  1 -
 3 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_wlan_util.c b/drivers/staging/r8188eu/core/rtw_wlan_util.c
index 60c49e161c12..b48e0b9dfd7b 100644
--- a/drivers/staging/r8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/r8188eu/core/rtw_wlan_util.c
@@ -264,16 +264,18 @@ void UpdateBrateTblForSoftAP(u8 *bssrateset, u32 bssratelen)
 
 void Save_DM_Func_Flag(struct adapter *padapter)
 {
-	u8	saveflag = true;
+	struct hal_data_8188e *haldata = &padapter->haldata;
+	struct odm_dm_struct *odmpriv = &haldata->odmpriv;
 
-	SetHwReg8188EU(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&saveflag));
+	odmpriv->BK_SupportAbility = odmpriv->SupportAbility;
 }
 
 void Restore_DM_Func_Flag(struct adapter *padapter)
 {
-	u8	saveflag = false;
+	struct hal_data_8188e *haldata = &padapter->haldata;
+	struct odm_dm_struct *odmpriv = &haldata->odmpriv;
 
-	SetHwReg8188EU(padapter, HW_VAR_DM_FUNC_OP, (u8 *)(&saveflag));
+	odmpriv->SupportAbility = odmpriv->BK_SupportAbility;
 }
 
 void Set_MSR(struct adapter *padapter, u8 type)
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 97893543d861..0aae713d2c1c 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1160,12 +1160,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 	case HW_VAR_DM_FLAG:
 		podmpriv->SupportAbility = *((u8 *)val);
 		break;
-	case HW_VAR_DM_FUNC_OP:
-		if (val[0])
-			podmpriv->BK_SupportAbility = podmpriv->SupportAbility;
-		else
-			podmpriv->SupportAbility = podmpriv->BK_SupportAbility;
-		break;
 	case HW_VAR_DM_FUNC_RESET:
 		podmpriv->SupportAbility = pdmpriv->InitODMFlag;
 		break;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index 3e0ee33aa131..261823e7e8e8 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -13,7 +13,6 @@ enum hw_variables {
 	HW_VAR_CORRECT_TSF,
 	HW_VAR_MLME_SITESURVEY,
 	HW_VAR_DM_FLAG,
-	HW_VAR_DM_FUNC_OP,
 	HW_VAR_DM_FUNC_RESET,
 	HW_VAR_DM_FUNC_CLR,
 };
-- 
2.36.1

[PATCH 3/5] staging: r8188eu: remove HW_VAR_DM_FLAG from SetHwReg8188EU()

[Michael Straube]

Remove the HW_VAR_DM_FLAG case from SetHwReg8188EU() and move its
functionality to a static function. This is part of the ongoing
effort to get rid of SetHwReg8188EU().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/hal/usb_halinit.c    |  3 ---
 drivers/staging/r8188eu/include/hal_intf.h   |  1 -
 drivers/staging/r8188eu/os_dep/ioctl_linux.c | 10 +++++++++-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 0aae713d2c1c..ece57565b082 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1157,9 +1157,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 			rtw_write32(Adapter, REG_RCR, reg32 | RCR_CBSSID_BCN);
 		}
 		break;
-	case HW_VAR_DM_FLAG:
-		podmpriv->SupportAbility = *((u8 *)val);
-		break;
 	case HW_VAR_DM_FUNC_RESET:
 		podmpriv->SupportAbility = pdmpriv->InitODMFlag;
 		break;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index 261823e7e8e8..89aeb6c2229f 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -12,7 +12,6 @@ enum hw_variables {
 	HW_VAR_SET_OPMODE,
 	HW_VAR_CORRECT_TSF,
 	HW_VAR_MLME_SITESURVEY,
-	HW_VAR_DM_FLAG,
 	HW_VAR_DM_FUNC_RESET,
 	HW_VAR_DM_FUNC_CLR,
 };
diff --git a/drivers/staging/r8188eu/os_dep/ioctl_linux.c b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
index 047e9c7d38c3..930bb4aea435 100644
--- a/drivers/staging/r8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/r8188eu/os_dep/ioctl_linux.c
@@ -3221,6 +3221,14 @@ static void rtw_set_dynamic_functions(struct adapter *adapter, u8 dm_func)
 	}
 }
 
+static void rtw_set_dm_func_flag(struct adapter *adapter, u32 odm_flag)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+	struct odm_dm_struct *odmpriv = &haldata->odmpriv;
+
+	odmpriv->SupportAbility = odm_flag;
+}
+
 static int rtw_dbg_port(struct net_device *dev,
 			       struct iw_request_info *info,
 			       union iwreq_data *wrqu, char *extra)
@@ -3459,7 +3467,7 @@ static int rtw_dbg_port(struct net_device *dev,
 		case 0x06:
 			{
 				u32 ODMFlag = (u32)(0x0f & arg);
-				SetHwReg8188EU(padapter, HW_VAR_DM_FLAG, (u8 *)(&ODMFlag));
+				rtw_set_dm_func_flag(padapter, ODMFlag);
 			}
 			break;
 		case 0x07:
-- 
2.36.1

[PATCH 4/5] staging: r8188eu: remove HW_VAR_DM_FUNC_RESET from SetHwReg8188EU()

[Michael Straube]

Remove the HW_VAR_DM_FUNC_RESET case from SetHwReg8188EU() and move
its functionality to a static function. This is part of the ongoing
effort to get rid of SetHwReg8188EU().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_mlme_ext.c | 11 ++++++++++-
 drivers/staging/r8188eu/hal/usb_halinit.c   |  4 ----
 drivers/staging/r8188eu/include/hal_intf.h  |  1 -
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index a16996982b58..31d936ad063a 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -6646,6 +6646,15 @@ void update_sta_info(struct adapter *padapter, struct sta_info *psta)
 	psta->state = _FW_LINKED;
 }
 
+static void rtw_reset_dm_func_flag(struct adapter *adapter)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+	struct dm_priv *dmpriv = &haldata->dmpriv;
+	struct odm_dm_struct *odmpriv = &haldata->odmpriv;
+
+	odmpriv->SupportAbility = dmpriv->InitODMFlag;
+}
+
 void mlmeext_joinbss_event_callback(struct adapter *padapter, int join_res)
 {
 	struct sta_info		*psta, *psta_bmc;
@@ -6676,7 +6685,7 @@ void mlmeext_joinbss_event_callback(struct adapter *padapter, int join_res)
 	}
 
 	/* turn on dynamic functions */
-	SetHwReg8188EU(padapter, HW_VAR_DM_FUNC_RESET, NULL);
+	rtw_reset_dm_func_flag(padapter);
 
 	/*  update IOT-releated issue */
 	update_IOT_info(padapter);
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index ece57565b082..92446cd1a096 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1062,7 +1062,6 @@ static void hw_var_set_opmode(struct adapter *Adapter, u8 *val)
 void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 {
 	struct hal_data_8188e *haldata = &Adapter->haldata;
-	struct dm_priv	*pdmpriv = &haldata->dmpriv;
 	struct odm_dm_struct *podmpriv = &haldata->odmpriv;
 	u8 reg;
 	int res;
@@ -1157,9 +1156,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 			rtw_write32(Adapter, REG_RCR, reg32 | RCR_CBSSID_BCN);
 		}
 		break;
-	case HW_VAR_DM_FUNC_RESET:
-		podmpriv->SupportAbility = pdmpriv->InitODMFlag;
-		break;
 	case HW_VAR_DM_FUNC_CLR:
 		podmpriv->SupportAbility = 0;
 		break;
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index 89aeb6c2229f..d33e75bcac74 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -12,7 +12,6 @@ enum hw_variables {
 	HW_VAR_SET_OPMODE,
 	HW_VAR_CORRECT_TSF,
 	HW_VAR_MLME_SITESURVEY,
-	HW_VAR_DM_FUNC_RESET,
 	HW_VAR_DM_FUNC_CLR,
 };
 
-- 
2.36.1

[PATCH 5/5] staging: r8188eu: remove HW_VAR_DM_FUNC_CLR from SetHwReg8188EU()

[Michael Straube]

Remove the HW_VAR_DM_FUNC_CLR case from SetHwReg8188EU() and move its
functionality to a static function. This is part of the ongoing effort
to get rid of SetHwReg8188EU().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
 drivers/staging/r8188eu/core/rtw_mlme_ext.c | 12 ++++++++++--
 drivers/staging/r8188eu/hal/usb_halinit.c   |  5 -----
 drivers/staging/r8188eu/include/hal_intf.h  |  1 -
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 31d936ad063a..eecb00e41d6a 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -6655,6 +6655,14 @@ static void rtw_reset_dm_func_flag(struct adapter *adapter)
 	odmpriv->SupportAbility = dmpriv->InitODMFlag;
 }
 
+static void rtw_clear_dm_func_flag(struct adapter *adapter)
+{
+	struct hal_data_8188e *haldata = &adapter->haldata;
+	struct odm_dm_struct *odmpriv = &haldata->odmpriv;
+
+	odmpriv->SupportAbility = 0;
+}
+
 void mlmeext_joinbss_event_callback(struct adapter *padapter, int join_res)
 {
 	struct sta_info		*psta, *psta_bmc;
@@ -7110,7 +7118,7 @@ u8 createbss_hdl(struct adapter *padapter, u8 *pbuf)
 
 		/* disable dynamic functions, such as high power, DIG */
 		Save_DM_Func_Flag(padapter);
-		SetHwReg8188EU(padapter, HW_VAR_DM_FUNC_CLR, NULL);
+		rtw_clear_dm_func_flag(padapter);
 
 		/* cancel link timer */
 		_cancel_timer_ex(&pmlmeext->link_timer);
@@ -7380,7 +7388,7 @@ u8 sitesurvey_cmd_hdl(struct adapter *padapter, u8 *pbuf)
 	if ((pmlmeext->sitesurvey_res.state == SCAN_START) || (pmlmeext->sitesurvey_res.state == SCAN_TXNULL)) {
 		/* disable dynamic functions, such as high power, DIG */
 		Save_DM_Func_Flag(padapter);
-		SetHwReg8188EU(padapter, HW_VAR_DM_FUNC_CLR, NULL);
+		rtw_clear_dm_func_flag(padapter);
 
 		/* config the initial gain under scanning, need to write the BB registers */
 		if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
diff --git a/drivers/staging/r8188eu/hal/usb_halinit.c b/drivers/staging/r8188eu/hal/usb_halinit.c
index 92446cd1a096..04beded95475 100644
--- a/drivers/staging/r8188eu/hal/usb_halinit.c
+++ b/drivers/staging/r8188eu/hal/usb_halinit.c
@@ -1061,8 +1061,6 @@ static void hw_var_set_opmode(struct adapter *Adapter, u8 *val)
 
 void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 {
-	struct hal_data_8188e *haldata = &Adapter->haldata;
-	struct odm_dm_struct *podmpriv = &haldata->odmpriv;
 	u8 reg;
 	int res;
 
@@ -1156,9 +1154,6 @@ void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val)
 			rtw_write32(Adapter, REG_RCR, reg32 | RCR_CBSSID_BCN);
 		}
 		break;
-	case HW_VAR_DM_FUNC_CLR:
-		podmpriv->SupportAbility = 0;
-		break;
 	default:
 		break;
 	}
diff --git a/drivers/staging/r8188eu/include/hal_intf.h b/drivers/staging/r8188eu/include/hal_intf.h
index d33e75bcac74..c1db7f834e20 100644
--- a/drivers/staging/r8188eu/include/hal_intf.h
+++ b/drivers/staging/r8188eu/include/hal_intf.h
@@ -12,7 +12,6 @@ enum hw_variables {
 	HW_VAR_SET_OPMODE,
 	HW_VAR_CORRECT_TSF,
 	HW_VAR_MLME_SITESURVEY,
-	HW_VAR_DM_FUNC_CLR,
 };
 
 typedef s32 (*c2h_id_filter)(u8 id);
-- 
2.36.1