This is a note to let you know that I've just added the patch titled
wifi: rtlwifi: rtl8192ee: using calculate_bit_shift()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-rtlwifi-rtl8192ee-using-calculate_bit_shift.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f30c136a643da0ebe961435e0894756c84bddcf1
Author: Su Hui <suhui@xxxxxxxxxxxx>
Date: Tue Dec 19 14:57:36 2023 +0800
wifi: rtlwifi: rtl8192ee: using calculate_bit_shift()
[ Upstream commit 63526897fc0d086069bcab67c3a112caaec751cb ]
Using calculate_bit_shift() to replace _rtl92ee_phy_calculate_bit_shift().
And fix the undefined bitwise shift behavior problem.
Fixes: b1a3bfc97cd9 ("rtlwifi: rtl8192ee: Move driver from staging to the regular tree")
Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://msgid.link/20231219065739.1895666-9-suhui@xxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c
index 420f4984bfb9..6fd422fc822d 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c
@@ -16,7 +16,6 @@ static u32 _rtl92ee_phy_rf_serial_read(struct ieee80211_hw *hw,
static void _rtl92ee_phy_rf_serial_write(struct ieee80211_hw *hw,
enum radio_path rfpath, u32 offset,
u32 data);
-static u32 _rtl92ee_phy_calculate_bit_shift(u32 bitmask);
static bool _rtl92ee_phy_bb8192ee_config_parafile(struct ieee80211_hw *hw);
static bool _rtl92ee_phy_config_mac_with_headerfile(struct ieee80211_hw *hw);
static bool phy_config_bb_with_hdr_file(struct ieee80211_hw *hw,
@@ -46,7 +45,7 @@ u32 rtl92ee_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask)
RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
"regaddr(%#x), bitmask(%#x)\n", regaddr, bitmask);
originalvalue = rtl_read_dword(rtlpriv, regaddr);
- bitshift = _rtl92ee_phy_calculate_bit_shift(bitmask);
+ bitshift = calculate_bit_shift(bitmask);
returnvalue = (originalvalue & bitmask) >> bitshift;
RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
@@ -68,7 +67,7 @@ void rtl92ee_phy_set_bb_reg(struct ieee80211_hw *hw, u32 regaddr,
if (bitmask != MASKDWORD) {
originalvalue = rtl_read_dword(rtlpriv, regaddr);
- bitshift = _rtl92ee_phy_calculate_bit_shift(bitmask);
+ bitshift = calculate_bit_shift(bitmask);
data = ((originalvalue & (~bitmask)) | (data << bitshift));
}
@@ -93,7 +92,7 @@ u32 rtl92ee_phy_query_rf_reg(struct ieee80211_hw *hw,
spin_lock_irqsave(&rtlpriv->locks.rf_lock, flags);
original_value = _rtl92ee_phy_rf_serial_read(hw , rfpath, regaddr);
- bitshift = _rtl92ee_phy_calculate_bit_shift(bitmask);
+ bitshift = calculate_bit_shift(bitmask);
readback_value = (original_value & bitmask) >> bitshift;
spin_unlock_irqrestore(&rtlpriv->locks.rf_lock, flags);
@@ -121,7 +120,7 @@ void rtl92ee_phy_set_rf_reg(struct ieee80211_hw *hw,
if (bitmask != RFREG_OFFSET_MASK) {
original_value = _rtl92ee_phy_rf_serial_read(hw, rfpath, addr);
- bitshift = _rtl92ee_phy_calculate_bit_shift(bitmask);
+ bitshift = calculate_bit_shift(bitmask);
data = (original_value & (~bitmask)) | (data << bitshift);
}
@@ -204,13 +203,6 @@ static void _rtl92ee_phy_rf_serial_write(struct ieee80211_hw *hw,
pphyreg->rf3wire_offset, data_and_addr);
}
-static u32 _rtl92ee_phy_calculate_bit_shift(u32 bitmask)
-{
- u32 i = ffs(bitmask);
-
- return i ? i - 1 : 32;
-}
-
bool rtl92ee_phy_mac_config(struct ieee80211_hw *hw)
{
return _rtl92ee_phy_config_mac_with_headerfile(hw);
