linux-kernel - [PATCH] rtl8xxxu: Remove set but not used variable 'rsr'

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Date:   Sun, 10 Nov 2019 18:49:55 +0800
From:   Zheng Yongjun <zhengyongjun3@...wei.com>
To:     <Jes.Sorensen@...il.com>, <kvalo@...eaurora.org>,
        <davem@...emloft.net>, <linux-wireless@...r.kernel.org>
CC:     <linux-kernel@...r.kernel.org>, <zhengyongjun3@...wei.com>,
        Hulk Robot <hulkci@...wei.com>
Subject: [PATCH] rtl8xxxu: Remove set but not used variable 'rsr'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function rtl8xxxu_gen2_config_channel:
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:1266:13: warning: variable rsr set but not used [-Wunused-but-set-variable]

rsr is never used, so remove it.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index c6c41fb962ff..2c1ca4bc4e56 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -1255,7 +1255,7 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw)
 void rtl8xxxu_gen2_config_channel(struct ieee80211_hw *hw)
 {
 	struct rtl8xxxu_priv *priv = hw->priv;
-	u32 val32, rsr;
+	u32 val32;
 	u8 val8, subchannel;
 	u16 rf_mode_bw;
 	bool ht = true;
@@ -1264,7 +1264,6 @@ void rtl8xxxu_gen2_config_channel(struct ieee80211_hw *hw)
 
 	rf_mode_bw = rtl8xxxu_read16(priv, REG_WMAC_TRXPTCL_CTL);
 	rf_mode_bw &= ~WMAC_TRXPTCL_CTL_BW_MASK;
-	rsr = rtl8xxxu_read32(priv, REG_RESPONSE_RATE_SET);
 	channel = hw->conf.chandef.chan->hw_value;
 
 /* Hack */
-- 
2.23.0