[PATCH 5.4 101/194] wifi: rtlwifi: rtl8192de: using calculate_bit_shift()

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5.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Su Hui <suhui@xxxxxxxxxxxx>

[ Upstream commit b8b2baad2e652042cf8b6339939ac2f4e6f53de4 ]

Using calculate_bit_shift() to replace _rtl92d_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.

Fixes: 7274a8c22980 ("rtlwifi: rtl8192de: Merge phy routines")
Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://msgid.link/20231219065739.1895666-8-suhui@xxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 .../net/wireless/realtek/rtlwifi/rtl8192de/phy.c  | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
index 7ba2aeaf071f..fb9355b2f6be 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
@@ -169,13 +169,6 @@ static const u8 channel_all[59] = {
 	157, 159, 161, 163, 165
 };
 
-static u32 _rtl92d_phy_calculate_bit_shift(u32 bitmask)
-{
-	u32 i = ffs(bitmask);
-
-	return i ? i - 1 : 32;
-}
-
 u32 rtl92d_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
@@ -198,7 +191,7 @@ u32 rtl92d_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask)
 	} else {
 		originalvalue = rtl_read_dword(rtlpriv, regaddr);
 	}
-	bitshift = _rtl92d_phy_calculate_bit_shift(bitmask);
+	bitshift = calculate_bit_shift(bitmask);
 	returnvalue = (originalvalue & bitmask) >> bitshift;
 	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
 		 "BBR MASK=0x%x Addr[0x%x]=0x%x\n",
@@ -230,7 +223,7 @@ void rtl92d_phy_set_bb_reg(struct ieee80211_hw *hw,
 					dbi_direct);
 		else
 			originalvalue = rtl_read_dword(rtlpriv, regaddr);
-		bitshift = _rtl92d_phy_calculate_bit_shift(bitmask);
+		bitshift = calculate_bit_shift(bitmask);
 		data = ((originalvalue & (~bitmask)) | (data << bitshift));
 	}
 	if (rtlhal->during_mac1init_radioa || rtlhal->during_mac0init_radiob)
@@ -318,7 +311,7 @@ u32 rtl92d_phy_query_rf_reg(struct ieee80211_hw *hw,
 		 regaddr, rfpath, bitmask);
 	spin_lock_irqsave(&rtlpriv->locks.rf_lock, flags);
 	original_value = _rtl92d_phy_rf_serial_read(hw, rfpath, regaddr);
-	bitshift = _rtl92d_phy_calculate_bit_shift(bitmask);
+	bitshift = calculate_bit_shift(bitmask);
 	readback_value = (original_value & bitmask) >> bitshift;
 	spin_unlock_irqrestore(&rtlpriv->locks.rf_lock, flags);
 	RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
@@ -345,7 +338,7 @@ void rtl92d_phy_set_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
 		if (bitmask != RFREG_OFFSET_MASK) {
 			original_value = _rtl92d_phy_rf_serial_read(hw,
 				rfpath, regaddr);
-			bitshift = _rtl92d_phy_calculate_bit_shift(bitmask);
+			bitshift = calculate_bit_shift(bitmask);
 			data = ((original_value & (~bitmask)) |
 				(data << bitshift));
 		}
-- 
2.43.0







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