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Date:   Fri, 13 Oct 2023 16:43:56 +0200
From:   Philipp Hortmann <philipp.g.hortmann@gmail.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 2/6] staging: rtl8192e: Remove unchanged variable
 dig_algorithm
Message-ID: <66f7275aa46e68577cc4c20582ffbd16de13f470.1697127817.git.philipp.g.hortmann@gmail.com>
References: <cover.1697127817.git.philipp.g.hortmann@gmail.com>
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Remove variable dig_algorithm as its value is set to DIG_ALGO_BY_RSSI at
initialization. No further writes to dig_algorithm are done. The
equations result accordingly. Remove dead code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c | 11 -----------
 drivers/staging/rtl8192e/rtl8192e/rtl_dm.c     |  9 +--------
 drivers/staging/rtl8192e/rtl8192e/rtl_dm.h     |  1 -
 3 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
index 875540a2079d..bc06c2cab35d 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
@@ -920,9 +920,6 @@ void rtl92e_init_gain(struct net_device *dev, u8 Operation)
 		case IG_Backup:
 			initial_gain = SCAN_RX_INITIAL_GAIN;
 			BitMask = bMaskByte0;
-			if (dm_digtable.dig_algorithm ==
-			    DIG_ALGO_BY_FALSE_ALARM)
-				rtl92e_set_bb_reg(dev, UFWP, bMaskByte1, 0x8);
 			priv->initgain_backup.xaagccore1 =
 				 rtl92e_get_bb_reg(dev, rOFDM0_XAAGCCore1,
 						   BitMask);
@@ -947,10 +944,6 @@ void rtl92e_init_gain(struct net_device *dev, u8 Operation)
 			break;
 		case IG_Restore:
 			BitMask = 0x7f;
-			if (dm_digtable.dig_algorithm ==
-			    DIG_ALGO_BY_FALSE_ALARM)
-				rtl92e_set_bb_reg(dev, UFWP, bMaskByte1, 0x8);
-
 			rtl92e_set_bb_reg(dev, rOFDM0_XAAGCCore1, BitMask,
 					 (u32)priv->initgain_backup.xaagccore1);
 			rtl92e_set_bb_reg(dev, rOFDM0_XBAGCCore1, BitMask,
@@ -965,10 +958,6 @@ void rtl92e_init_gain(struct net_device *dev, u8 Operation)
 
 			rtl92e_set_tx_power(dev,
 					 priv->rtllib->current_network.channel);
-
-			if (dm_digtable.dig_algorithm ==
-			    DIG_ALGO_BY_FALSE_ALARM)
-				rtl92e_set_bb_reg(dev, UFWP, bMaskByte1, 0x1);
 			break;
 		}
 	}
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index bbd18b6cc252..2bbc6a67188c 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -913,8 +913,6 @@ static void _rtl92e_dm_dig_init(struct net_device *dev)
 {
 	struct r8192_priv *priv = rtllib_priv(dev);
 
-	dm_digtable.dig_algorithm = DIG_ALGO_BY_RSSI;
-
 	dm_digtable.dig_algorithm_switch = 0;
 
 	dm_digtable.dig_state		= DM_STA_DIG_MAX;
@@ -939,12 +937,7 @@ static void _rtl92e_dm_dig_init(struct net_device *dev)
 
 static void _rtl92e_dm_ctrl_initgain_byrssi(struct net_device *dev)
 {
-	if (dm_digtable.dig_algorithm == DIG_ALGO_BY_FALSE_ALARM)
-		_rtl92e_dm_ctrl_initgain_byrssi_false_alarm(dev);
-	else if (dm_digtable.dig_algorithm == DIG_ALGO_BY_RSSI)
-		_rtl92e_dm_ctrl_initgain_byrssi_driver(dev);
-	else
-		return;
+	_rtl92e_dm_ctrl_initgain_byrssi_driver(dev);
 }
 
 /*-----------------------------------------------------------------------------
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
index faf08763c340..15af490d2dcd 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
@@ -50,7 +50,6 @@
 
 /*------------------------------Define structure----------------------------*/
 struct dig_t {
-	u8		dig_algorithm;
 	u8		dig_algorithm_switch;
 
 	long		rssi_low_thresh;
-- 
2.42.0