From 3544f9f150bb58a3678c161a505b186893971c8a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 3 Aug 2015 16:15:53 -0500 Subject: [PATCH] rtlwifi: rtl8192c-common: Fix two typos In this driver, two variables are masked by one quantity, and then tested against a second number with more bits that the mask. Accordingly, the test always fails. To minimize the possibility of such typos, a symbolic definition of the mask is created and used. The separate load and mask operations are also combined into a single statement. Reported-by: David Binderman Signed-off-by: Larry Finger Cc: David Binderman Signed-off-by: Kalle Valo --- drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c index d40acaca389e..03cbe4cf110b 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c @@ -39,6 +39,7 @@ #define BT_RSSI_STATE_SPECIAL_LOW BIT_OFFSET_LEN_MASK_32(2, 1) #define BT_RSSI_STATE_BG_EDCA_LOW BIT_OFFSET_LEN_MASK_32(3, 1) #define BT_RSSI_STATE_TXPOWER_LOW BIT_OFFSET_LEN_MASK_32(4, 1) +#define BT_MASK 0x00ffffff #define RTLPRIV (struct rtl_priv *) #define GET_UNDECORATED_AVERAGE_RSSI(_priv) \ @@ -1536,13 +1537,11 @@ static bool rtl92c_bt_state_change(struct ieee80211_hw *hw) return false; bt_state = rtl_read_byte(rtlpriv, 0x4fd); - bt_tx = rtl_read_dword(rtlpriv, 0x488); - bt_tx = bt_tx & 0x00ffffff; - bt_pri = rtl_read_dword(rtlpriv, 0x48c); - bt_pri = bt_pri & 0x00ffffff; + bt_tx = rtl_read_dword(rtlpriv, 0x488) & BT_MASK; + bt_pri = rtl_read_dword(rtlpriv, 0x48c) & BT_MASK; polling = rtl_read_dword(rtlpriv, 0x490); - if (bt_tx == 0xffffffff && bt_pri == 0xffffffff && + if (bt_tx == BT_MASK && bt_pri == BT_MASK && polling == 0xffffffff && bt_state == 0xff) return false; -- 2.30.2