netdev - [PATCH] rtlwifi: rtl8192se: remove redundant rtl_get

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Message-Id: <20221205085342.677329-1-pkosyh@yandex.ru>
Date:   Mon,  5 Dec 2022 11:53:42 +0300
From:   Peter Kosyh <pkosyh@...dex.ru>
To:     Ping-Ke Shih <pkshih@...ltek.com>
Cc:     Peter Kosyh <pkosyh@...dex.ru>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Kalle Valo <kvalo@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org
Subject: [PATCH] rtlwifi: rtl8192se: remove redundant rtl_get_bbreg call

Extra rtl_get_bbreg looks like redundant reading. The read has
already been done in the "else" branch. Compile test only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Peter Kosyh <pkosyh@...dex.ru>
---
If this code is important for the operation of the hardware, then it would
be nice to comment on it.

 drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
index aaa004d4d6d0..09591a0b5a81 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
@@ -115,9 +115,6 @@ static u32 _rtl92s_phy_rf_serial_read(struct ieee80211_hw *hw,
 		retvalue = rtl_get_bbreg(hw, pphyreg->rf_rb,
 					 BLSSI_READBACK_DATA);
 
-	retvalue = rtl_get_bbreg(hw, pphyreg->rf_rb,
-				 BLSSI_READBACK_DATA);
-
 	rtl_dbg(rtlpriv, COMP_RF, DBG_TRACE, "RFR-%d Addr[0x%x]=0x%x\n",
 		rfpath, pphyreg->rf_rb, retvalue);
 
-- 
2.38.1