linux-kernel - [PATCH 06/11] staging: rtl8192e: Remove priv->rf_chip in _rtl92e_phy_switch_channel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 25 Mar 2023 09:36:23 +0100
From:   Philipp Hortmann <philipp.g.hortmann@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH 06/11] staging: rtl8192e: Remove priv->rf_chip in
 _rtl92e_phy_switch_channel_step

priv->rf_chip is initialized to RF_8256 and never changed. Remove
condition in function _rtl92e_phy_switch_channel_step as it is dead code.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@...il.com>
---
 .../staging/rtl8192e/rtl8192e/r8192E_phy.c    | 83 ++++---------------
 1 file changed, 16 insertions(+), 67 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
index b528b8ab4b2b..73e426e052b0 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
@@ -14,24 +14,6 @@
 
 #include "table.h"
 
-static u32 RF_CHANNEL_TABLE_ZEBRA[] = {
-	0,
-	0x085c,
-	0x08dc,
-	0x095c,
-	0x09dc,
-	0x0a5c,
-	0x0adc,
-	0x0b5c,
-	0x0bdc,
-	0x0c5c,
-	0x0cdc,
-	0x0d5c,
-	0x0ddc,
-	0x0e5c,
-	0x0f72,
-};
-
 /*************************Define local function prototype**********************/
 
 static u32 _rtl92e_phy_rf_fw_read(struct net_device *dev,
@@ -608,58 +590,25 @@ static u8 _rtl92e_phy_switch_channel_step(struct net_device *dev, u8 channel,
 						  0, 0, 0);
 
 		RfDependCmdCnt = 0;
-		switch (priv->rf_chip) {
-		case RF_8225:
-			if (!(channel >= 1 && channel <= 14)) {
-				netdev_err(dev,
-					   "Invalid channel requested for 8225: %d\n",
-					   channel);
-				return false;
-			}
-			_rtl92e_phy_set_sw_chnl_cmd_array(dev,
-							  ieee->RfDependCmd,
-							  RfDependCmdCnt++,
-							  MAX_RFDEPENDCMD_CNT,
-							  CmdID_RF_WriteReg,
-							  rZebra1_Channel,
-							  RF_CHANNEL_TABLE_ZEBRA[channel],
-							  10);
-			_rtl92e_phy_set_sw_chnl_cmd_array(dev,
-							  ieee->RfDependCmd,
-							  RfDependCmdCnt++,
-							  MAX_RFDEPENDCMD_CNT,
-							  CmdID_End, 0, 0, 0);
-			break;
-
-		case RF_8256:
-			if (!(channel >= 1 && channel <= 14)) {
-				netdev_err(dev,
-					   "Invalid channel requested for 8256: %d\n",
-					   channel);
-				return false;
-			}
-			_rtl92e_phy_set_sw_chnl_cmd_array(dev,
-							  ieee->RfDependCmd,
-							  RfDependCmdCnt++,
-							  MAX_RFDEPENDCMD_CNT,
-							  CmdID_RF_WriteReg,
-							  rZebra1_Channel,
-							  channel, 10);
-			_rtl92e_phy_set_sw_chnl_cmd_array(dev,
-							  ieee->RfDependCmd,
-							  RfDependCmdCnt++,
-							  MAX_RFDEPENDCMD_CNT,
-							  CmdID_End, 0, 0, 0);
-			break;
-
-		case RF_8258:
-			break;
 
-		default:
-			netdev_warn(dev, "Unknown RF Chip ID\n");
+		if (!(channel >= 1 && channel <= 14)) {
+			netdev_err(dev,
+				   "Invalid channel requested for 8256: %d\n",
+				   channel);
 			return false;
 		}
-
+		_rtl92e_phy_set_sw_chnl_cmd_array(dev,
+						  ieee->RfDependCmd,
+						  RfDependCmdCnt++,
+						  MAX_RFDEPENDCMD_CNT,
+						  CmdID_RF_WriteReg,
+						  rZebra1_Channel,
+						  channel, 10);
+		_rtl92e_phy_set_sw_chnl_cmd_array(dev,
+						  ieee->RfDependCmd,
+						  RfDependCmdCnt++,
+						  MAX_RFDEPENDCMD_CNT,
+						  CmdID_End, 0, 0, 0);
 
 		do {
 			switch (*stage) {
-- 
2.39.2