linux-kernel - [PATCH v2] net: wireless: rtlwifi: rtl8192cu: hw.c: Cleaning up if statement that always evaluates to false

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Message-Id: <1403384437-9615-2-git-send-email-rickard_strandqvist@spectrumdigital.se>
Date:	Sat, 21 Jun 2014 23:00:37 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Larry Finger <Larry.Finger@...inger.net>,
	Chaoming Li <chaoming_li@...lsil.com.cn>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	"John W. Linville" <linville@...driver.com>,
	Ben Hutchings <ben@...adent.org.uk>,
	Peter Wu <lekensteyn@...il.com>,
	Mark Cave-Ayland <mark.cave-ayland@...nde.co.uk>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2] net: wireless: rtlwifi: rtl8192cu: hw.c:  Cleaning up if statement that always evaluates to false

I found a logical error in an if statement that always evaluates to false.

This has after same discussion resulted in that we add a macro to handle this.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 drivers/net/wireless/rtlwifi/rtl8192ce/hw.c  |    2 +-
 drivers/net/wireless/rtlwifi/rtl8192ce/reg.h |    1 +
 drivers/net/wireless/rtlwifi/rtl8192cu/hw.c  |    2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
index 55adf04..5050938 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c
@@ -1206,7 +1206,7 @@ static int _rtl92ce_set_media_status(struct ieee80211_hw *hw,
 
 	rtl_write_byte(rtlpriv, (MSR), bt_msr);
 	rtlpriv->cfg->ops->led_control(hw, ledaction);
-	if ((bt_msr & 0xfc) == MSR_AP)
+	if ((bt_msr & MSR_MASK) == MSR_AP)
 		rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x00);
 	else
 		rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x66);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h b/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h
index ed703a1..dc8460c 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h
@@ -375,6 +375,7 @@
 #define	MSR_ADHOC				0x01
 #define	MSR_INFRA				0x02
 #define	MSR_AP					0x03
+#define	MSR_MASK				0x03
 
 #define	RRSR_RSC_OFFSET				21
 #define	RRSR_SHORT_OFFSET			23
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
index 07cb06d..87c0a27 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
@@ -1360,7 +1360,7 @@ static int _rtl92cu_set_media_status(struct ieee80211_hw *hw,
 	}
 	rtl_write_byte(rtlpriv, (MSR), bt_msr);
 	rtlpriv->cfg->ops->led_control(hw, ledaction);
-	if ((bt_msr & 0xfc) == MSR_AP)
+	if ((bt_msr & MSR_MASK) == MSR_AP)
 		rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x00);
 	else
 		rtl_write_byte(rtlpriv, REG_BCNTCFG + 1, 0x66);
-- 
1.7.10.4

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