staging: rtl8188eu: remove core/rtw_debug.c

Remove core/rtw_debug.c as all the functions contained within it are
entirely unused, and modify the Makefile to remove it as a build
requirement. Also remove the function declarations from
include/rtw_debug.h - this is part of an ongoing effort to purge
dead/unused code and cleanup this driver. This has the helpful
side effect of removing all DBG_88E macro calls within this file
as well.
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210615001507.1171-28-phil@philpotter.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/Makefile

@@ -2,7 +2,6 @@
 r8188eu-y :=				\
 		core/rtw_ap.o		\
 		core/rtw_cmd.o		\
-		core/rtw_debug.o	\
 		core/rtw_efuse.o	\
 		core/rtw_ieee80211.o	\
 		core/rtw_ioctl_set.o	\

drivers/staging/rtl8188eu/core/rtw_debug.c

-// SPDX-License-Identifier: GPL-2.0
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
- *
- ******************************************************************************/
-#define _RTW_DEBUG_C_
-
-#include <rtw_debug.h>
-#include <usb_ops_linux.h>
-
-int proc_get_drv_version(char *page, char **start,
-			 off_t offset, int count,
-			 int *eof, void *data)
-{
-	int len = 0;
-
-	len += scnprintf(page + len, count - len, "%s\n", DRIVERVERSION);
-
-	*eof = 1;
-	return len;
-}
-
-int proc_get_write_reg(char *page, char **start,
-		       off_t offset, int count,
-		       int *eof, void *data)
-{
-	*eof = 1;
-	return 0;
-}
-
-int proc_set_write_reg(struct file *file, const char __user *buffer,
-		       unsigned long count, void *data)
-{
-	struct net_device *dev = data;
-	struct adapter *padapter = netdev_priv(dev);
-	char tmp[32];
-	u32 addr, val, len;
-
-	if (count < 3) {
-		DBG_88E("argument size is less than 3\n");
-		return -EFAULT;
-	}
-
-	if (buffer && !copy_from_user(tmp, buffer, sizeof(tmp))) {
-		int num = sscanf(tmp, "%x %x %x", &addr, &val, &len);
-
-		if (num !=  3) {
-			DBG_88E("invalid write_reg parameter!\n");
-			return count;
-		}
-		switch (len) {
-		case 1:
-			usb_write8(padapter, addr, (u8)val);
-			break;
-		case 2:
-			usb_write16(padapter, addr, (u16)val);
-			break;
-		case 4:
-			usb_write32(padapter, addr, val);
-			break;
-		default:
-			DBG_88E("error write length =%d", len);
-			break;
-		}
-	}
-	return count;
-}
-
-static u32 proc_get_read_addr = 0xeeeeeeee;
-static u32 proc_get_read_len = 0x4;
-
-int proc_get_read_reg(char *page, char **start,
-		      off_t offset, int count,
-		      int *eof, void *data)
-{
-	struct net_device *dev = data;
-	struct adapter *padapter = netdev_priv(dev);
-
-	int len = 0;
-
-	if (proc_get_read_addr == 0xeeeeeeee) {
-		*eof = 1;
-		return len;
-	}
-
-	switch (proc_get_read_len) {
-	case 1:
-		len += scnprintf(page + len, count - len, "usb_read8(0x%x)=0x%x\n",
-				 proc_get_read_addr, usb_read8(padapter, proc_get_read_addr));
-		break;
-	case 2:
-		len += scnprintf(page + len, count - len, "usb_read16(0x%x)=0x%x\n",
-				 proc_get_read_addr, usb_read16(padapter, proc_get_read_addr));
-		break;
-	case 4:
-		len += scnprintf(page + len, count - len, "usb_read32(0x%x)=0x%x\n",
-				 proc_get_read_addr, usb_read32(padapter, proc_get_read_addr));
-		break;
-	default:
-		len += scnprintf(page + len, count - len, "error read length=%d\n",
-				 proc_get_read_len);
-		break;
-	}
-
-	*eof = 1;
-	return len;
-}
-
-int proc_set_read_reg(struct file *file, const char __user *buffer,
-		      unsigned long count, void *data)
-{
-	char tmp[16];
-	u32 addr, len;
-
-	if (count < 2) {
-		DBG_88E("argument size is less than 2\n");
-		return -EFAULT;
-	}
-
-	if (buffer && !copy_from_user(tmp, buffer, sizeof(tmp))) {
-		int num = sscanf(tmp, "%x %x", &addr, &len);
-
-		if (num !=  2) {
-			DBG_88E("invalid read_reg parameter!\n");
-			return count;
-		}
-
-		proc_get_read_addr = addr;
-
-		proc_get_read_len = len;
-	}
-
-	return count;
-}
-
-int proc_get_adapter_state(char *page, char **start,
-			   off_t offset, int count,
-			   int *eof, void *data)
-{
-	struct net_device *dev = data;
-	struct adapter *padapter = netdev_priv(dev);
-	int len = 0;
-
-	len += scnprintf(page + len, count - len, "bSurpriseRemoved=%d, bDriverStopped=%d\n",
-			 padapter->bSurpriseRemoved,
-			 padapter->bDriverStopped);
-
-	*eof = 1;
-	return len;
-}
-
-int proc_get_best_channel(char *page, char **start,
-			  off_t offset, int count,
-			  int *eof, void *data)
-{
-	struct net_device *dev = data;
-	struct adapter *padapter = netdev_priv(dev);
-	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
-	int len = 0;
-	u32 i, best_channel_24G = 1, index_24G = 0;
-
-	for (i = 0; pmlmeext->channel_set[i].ChannelNum != 0; i++) {
-		if (pmlmeext->channel_set[i].ChannelNum == 1)
-			index_24G = i;
-	}
-
-	for (i = 0; pmlmeext->channel_set[i].ChannelNum != 0; i++) {
-		/*  2.4G */
-		if (pmlmeext->channel_set[i].ChannelNum == 6) {
-			if (pmlmeext->channel_set[i].rx_count < pmlmeext->channel_set[index_24G].rx_count) {
-				index_24G = i;
-				best_channel_24G = pmlmeext->channel_set[i].ChannelNum;
-			}
-		}
-
-		/*  debug */
-		len += scnprintf(page + len, count - len, "The rx cnt of channel %3d = %d\n",
-				 pmlmeext->channel_set[i].ChannelNum,
-				 pmlmeext->channel_set[i].rx_count);
-	}
-
-	len += scnprintf(page + len, count - len, "best_channel_24G = %d\n", best_channel_24G);
-
-	*eof = 1;
-	return len;
-}

drivers/staging/rtl8188eu/include/rtw_debug.h

@@ -85,29 +85,4 @@ extern u32 GlobalDebugLevel;
 		}							\
 	} while (0)
 
-int proc_get_drv_version(char *page, char **start,
-			 off_t offset, int count,
-			 int *eof, void *data);
-
-int proc_get_write_reg(char *page, char **start,
-		       off_t offset, int count,
-		       int *eof, void *data);
-
-int proc_set_write_reg(struct file *file, const char __user *buffer,
-		       unsigned long count, void *data);
-int proc_get_read_reg(char *page, char **start,
-		      off_t offset, int count,
-		      int *eof, void *data);
-
-int proc_set_read_reg(struct file *file, const char __user *buffer,
-		      unsigned long count, void *data);
-
-int proc_get_adapter_state(char *page, char **start,
-			   off_t offset, int count,
-			   int *eof, void *data);
-
-int proc_get_best_channel(char *page, char **start,
-			  off_t offset, int count,
-			  int *eof, void *data);
-
 #endif	/* __RTW_DEBUG_H__ */