diff mbox series

rtlwifi: Use ffs in <foo>_phy_calculate_bit_shift

Message ID e2ab424d24b74901bc0c39f0c60f75e871adf2ba.camel@perches.com (mailing list archive)
State Accepted
Commit 6c1d61913570d4255548ac598cfbef6f1e3c3eee
Delegated to: Kalle Valo
Headers show
Series rtlwifi: Use ffs in <foo>_phy_calculate_bit_shift | expand

Commit Message

Joe Perches Sept. 19, 2020, 6:37 a.m. UTC 
Remove the loop and use the generic ffs instead.

Signed-off-by: Joe Perches <joe@perches.com>
---
Just saw one by happenstance, might as well fix them all.

 drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c   | 18 ++++++------------
 .../net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c |  8 ++------
 drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c   |  9 ++-------
 drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c   |  8 ++------
 drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c   |  9 ++-------
 .../wireless/realtek/rtlwifi/rtl8723com/phy_common.c   |  8 ++------
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c   | 18 ++++++------------
 7 files changed, 22 insertions(+), 56 deletions(-)

Comments

Kalle Valo Sept. 22, 2020, 7:17 a.m. UTC | #1 
Joe Perches <joe@perches.com> wrote:

> Remove the loop and use the generic ffs instead.
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Patch applied to wireless-drivers-next.git, thanks.

6c1d61913570 rtlwifi: Use ffs in <foo>_phy_calculate_bit_shift
diff mbox series

Patch

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
index 38d4432767e8..9be032e8ec95 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c
@@ -16,7 +16,12 @@  static u32 _rtl88e_phy_rf_serial_read(struct ieee80211_hw *hw,
 static void _rtl88e_phy_rf_serial_write(struct ieee80211_hw *hw,
 					enum radio_path rfpath, u32 offset,
 					u32 data);
-static u32 _rtl88e_phy_calculate_bit_shift(u32 bitmask);
+static u32 _rtl88e_phy_calculate_bit_shift(u32 bitmask)
+{
+	u32 i = ffs(bitmask);
+
+	return i ? i - 1 : 32;
+}
 static bool _rtl88e_phy_bb8188e_config_parafile(struct ieee80211_hw *hw);
 static bool _rtl88e_phy_config_mac_with_headerfile(struct ieee80211_hw *hw);
 static bool phy_config_bb_with_headerfile(struct ieee80211_hw *hw,
@@ -208,17 +213,6 @@  static void _rtl88e_phy_rf_serial_write(struct ieee80211_hw *hw,
 		rfpath, pphyreg->rf3wire_offset, data_and_addr);
 }
 
-static u32 _rtl88e_phy_calculate_bit_shift(u32 bitmask)
-{
-	u32 i;
-
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
-	return i;
-}
-
 bool rtl88e_phy_mac_config(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c
index fc6c81291cf5..238b6e010769 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c
@@ -145,13 +145,9 @@  EXPORT_SYMBOL(_rtl92c_phy_rf_serial_write);
 
 u32 _rtl92c_phy_calculate_bit_shift(u32 bitmask)
 {
-	u32 i;
+	u32 i = ffs(bitmask);
 
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
-	return i;
+	return i ? i - 1 : 32;
 }
 EXPORT_SYMBOL(_rtl92c_phy_calculate_bit_shift);
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
index 87804325928a..e34d33e73e52 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c
@@ -162,14 +162,9 @@  static u32 targetchnl_2g[TARGET_CHNL_NUM_2G] = {
 
 static u32 _rtl92d_phy_calculate_bit_shift(u32 bitmask)
 {
-	u32 i;
-
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
+	u32 i = ffs(bitmask);
 
-	return i;
+	return i ? i - 1 : 32;
 }
 
 u32 rtl92d_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask)
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c
index f107a30a96f0..cc0bcaf13e96 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/phy.c
@@ -203,13 +203,9 @@  static void _rtl92ee_phy_rf_serial_write(struct ieee80211_hw *hw,
 
 static u32 _rtl92ee_phy_calculate_bit_shift(u32 bitmask)
 {
-	u32 i;
+	u32 i = ffs(bitmask);
 
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
-	return i;
+	return i ? i - 1 : 32;
 }
 
 bool rtl92ee_phy_mac_config(struct ieee80211_hw *hw)
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
index 3d482b8675e2..63283d9e7485 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/phy.c
@@ -16,14 +16,9 @@ 
 
 static u32 _rtl92s_phy_calculate_bit_shift(u32 bitmask)
 {
-	u32 i;
-
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
+	u32 i = ffs(bitmask);
 
-	return i;
+	return i ? i - 1 : 32;
 }
 
 u32 rtl92s_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask)
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723com/phy_common.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723com/phy_common.c
index 097f21f6d35b..47b6c1aa36b0 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723com/phy_common.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723com/phy_common.c
@@ -53,13 +53,9 @@  EXPORT_SYMBOL_GPL(rtl8723_phy_set_bb_reg);
 
 u32 rtl8723_phy_calculate_bit_shift(u32 bitmask)
 {
-	u32 i;
+	u32 i = ffs(bitmask);
 
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
-	return i;
+	return i ? i - 1 : 32;
 }
 EXPORT_SYMBOL_GPL(rtl8723_phy_calculate_bit_shift);
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
index 7832fae3d00f..e2af0b4a99df 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/phy.c
@@ -27,7 +27,12 @@  static u32 _rtl8821ae_phy_rf_serial_read(struct ieee80211_hw *hw,
 static void _rtl8821ae_phy_rf_serial_write(struct ieee80211_hw *hw,
 					   enum radio_path rfpath, u32 offset,
 					   u32 data);
-static u32 _rtl8821ae_phy_calculate_bit_shift(u32 bitmask);
+static u32 _rtl8821ae_phy_calculate_bit_shift(u32 bitmask)
+{
+	u32 i = ffs(bitmask);
+
+	return i ? i - 1 : 32;
+}
 static bool _rtl8821ae_phy_bb8821a_config_parafile(struct ieee80211_hw *hw);
 /*static bool _rtl8812ae_phy_config_mac_with_headerfile(struct ieee80211_hw *hw);*/
 static bool _rtl8821ae_phy_config_mac_with_headerfile(struct ieee80211_hw *hw);
@@ -272,17 +277,6 @@  static void _rtl8821ae_phy_rf_serial_write(struct ieee80211_hw *hw,
 		rfpath, pphyreg->rf3wire_offset, data_and_addr);
 }
 
-static u32 _rtl8821ae_phy_calculate_bit_shift(u32 bitmask)
-{
-	u32 i;
-
-	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
-			break;
-	}
-	return i;
-}
-
 bool rtl8821ae_phy_mac_config(struct ieee80211_hw *hw)
 {
 	bool rtstatus = 0;