linux-kernel - [PATCH] staging: r8188eu: Remove variables and simplify PHY

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Date:   Fri, 13 Aug 2021 18:08:12 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Martin Kaiser <martin@...ser.cx>,
        Michael Straube <straube.linux@...il.com>,
        Fabio Aiuto <fabioaiuto83@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Cc:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Subject: [PATCH] staging: r8188eu: Remove variables and simplify PHY_SwChnl8188E()

Remove "bResult" and "tmpchannel" and all tests and assignments that
are related to them in the code of PHY_SwChnl8188E().

"bResult" was always true, therefore its test led to a null statement.
"tmpchannel" was used only to restore "pHalData->CurrentChannel" to its
previous value only if _PHY_SwChnl8192C() was not called; therefore
assign "channel" to "pHalData->CurrentChannel" if and only if
_PHY_SwChnl8192C() is to be executed (and get rid of that temporary
storage).

Signed-off-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
---
 drivers/staging/r8188eu/hal/rtl8188e_phycfg.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/r8188eu/hal/rtl8188e_phycfg.c b/drivers/staging/r8188eu/hal/rtl8188e_phycfg.c
index 02955b8c4005..9af91ec92d36 100644
--- a/drivers/staging/r8188eu/hal/rtl8188e_phycfg.c
+++ b/drivers/staging/r8188eu/hal/rtl8188e_phycfg.c
@@ -1091,8 +1091,6 @@ void PHY_SwChnl8188E(struct adapter *Adapter, u8 channel)
 {
 	/*  Call after initialization */
 	struct hal_data_8188e	*pHalData = GET_HAL_DATA(Adapter);
-	u8 tmpchannel = pHalData->CurrentChannel;
-	bool  bResult = true;
 
 	if (pHalData->rf_chip == RF_PSEUDO_11N)
 		return;		/* return immediately if it is peudo-phy */
@@ -1100,17 +1098,8 @@ void PHY_SwChnl8188E(struct adapter *Adapter, u8 channel)
 	if (channel == 0)
 		channel = 1;
 
-	pHalData->CurrentChannel = channel;
-
 	if ((!Adapter->bDriverStopped) && (!Adapter->bSurpriseRemoved)) {
+		pHalData->CurrentChannel = channel;
 		_PHY_SwChnl8192C(Adapter, channel);
-
-		if (bResult)
-			;
-		else
-			pHalData->CurrentChannel = tmpchannel;
-
-	} else {
-		pHalData->CurrentChannel = tmpchannel;
 	}
 }
-- 
2.32.0