staging: r8188eu: Remove unnecessary parentheses

Clang warns several times across the driver along the lines of:

drivers/staging/r8188eu/core/rtw_pwrctrl.c:222:21: warning: equality
comparison with extraneous parentheses [-Wparentheses-equality]
        if ((pwrpriv->rpwm == pslv)) {
             ~~~~~~~~~~~~~~^~~~~~~
drivers/staging/r8188eu/core/rtw_pwrctrl.c:222:21: note: remove
extraneous parentheses around the comparison to silence this warning
        if ((pwrpriv->rpwm == pslv)) {
            ~              ^      ~
drivers/staging/r8188eu/core/rtw_pwrctrl.c:222:21: note: use '=' to turn
this equality comparison into an assignment
        if ((pwrpriv->rpwm == pslv)) {
                           ^~
                           =
1 warning generated.

The compilers have agreed that single parentheses are used for equality
and double parentheses are used for assignment within control flow
statements such as if and while so remove them in these places to fix
the warning.
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20210805185807.3296077-2-nathan@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_pwrctrl.c

@@ -218,7 +218,7 @@ void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
 			pslv = PS_STATE_S3;
 	}
 
-	if ((pwrpriv->rpwm == pslv))
+	if (pwrpriv->rpwm == pslv)
 		return;
 
 	if ((padapter->bSurpriseRemoved) ||

drivers/staging/r8188eu/core/rtw_security.c

@@ -1209,7 +1209,7 @@ u32	rtw_aes_encrypt(struct adapter *padapter, u8 *pxmitframe)
 	pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + hw_hdr_offset;
 
 	/* 4 start to encrypt each fragment */
-	if ((pattrib->encrypt == _AES_)) {
+	if (pattrib->encrypt == _AES_) {
 		if (pattrib->psta)
 			stainfo = pattrib->psta;
 		else
@@ -1452,7 +1452,7 @@ u32	rtw_aes_decrypt(struct adapter *padapter, u8 *precvframe)
 
 	pframe = (unsigned char *)((struct recv_frame *)precvframe)->rx_data;
 	/* 4 start to encrypt each fragment */
-	if ((prxattrib->encrypt == _AES_)) {
+	if (prxattrib->encrypt == _AES_) {
 		stainfo = rtw_get_stainfo(&padapter->stapriv, &prxattrib->ta[0]);
 		if (stainfo) {
 			RT_TRACE(_module_rtl871x_security_c_, _drv_err_, ("rtw_aes_decrypt: stainfo!= NULL!!!\n"));

drivers/staging/r8188eu/core/rtw_wlan_util.c

@@ -1283,7 +1283,7 @@ int support_short_GI(struct adapter *padapter, struct HT_caps_element *pHT_caps)
 	if (!(pmlmeinfo->HT_enable))
 		return _FAIL;
 
-	if ((pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_RALINK))
+	if (pmlmeinfo->assoc_AP_vendor == HT_IOT_PEER_RALINK)
 		return _FAIL;
 
 	bit_offset = (pmlmeext->cur_bwmode & HT_CHANNEL_WIDTH_40) ? 6 : 5;

drivers/staging/r8188eu/hal/odm.c

@@ -1630,7 +1630,7 @@ void odm_EdcaTurboCheckCE(struct odm_dm_struct *pDM_Odm)
 	struct mlme_ext_priv	*pmlmeext = &(Adapter->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
 
-	if ((pregpriv->wifi_spec == 1))/*  (pmlmeinfo->HT_enable == 0)) */
+	if (pregpriv->wifi_spec == 1)
 		goto dm_CheckEdcaTurbo_EXIT;
 
 	if (pmlmeinfo->assoc_AP_vendor >=  HT_IOT_PEER_MAX)

drivers/staging/r8188eu/hal/usb_halinit.c

@@ -1277,7 +1277,7 @@ static void hw_var_set_opmode(struct adapter *Adapter, u8 variable, u8 *val)
 		StopTxBeacon(Adapter);
 
 		rtw_write8(Adapter, REG_BCN_CTRL, 0x19);/* disable atim wnd */
-	} else if ((mode == _HW_STATE_ADHOC_)) {
+	} else if (mode == _HW_STATE_ADHOC_) {
 		ResumeTxBeacon(Adapter);
 		rtw_write8(Adapter, REG_BCN_CTRL, 0x1a);
 	} else if (mode == _HW_STATE_AP_) {