staging: rtl8723bs: rework debug configuration handling

I ran into this warning during randconfig testing:

drivers/staging/rtl8723bs/os_dep/rtw_proc.c: In function 'rtw_adapter_proc_deinit':
drivers/staging/rtl8723bs/os_dep/rtw_proc.c:738:25: error: unused variable 'drv_proc' [-Werror=unused-variable]
drivers/staging/rtl8723bs/os_dep/rtw_proc.c: In function 'rtw_adapter_proc_replace':
drivers/staging/rtl8723bs/os_dep/rtw_proc.c:762:25: error: unused variable 'drv_proc' [-Werror=unused-variable]

The problem is that the code procfs code gets built even when CONFIG_PROC_FS
is disabled, but some functions are turned into empty stubs then. This
is easily addressed by adding an #ifdef around the definition of the
CONFIG_PROC_DEBUG macro.

However, I could not bear looking at the macro name that clashes with the
Kconfig name space, so I also renamed it to simply PROC_DEBUG, along with
the other rtl8723bs specific CONFIG_DEBUG_* macros that I renamed the same
way. This is consistent with how we handle the same checks in the non-staging
rtlwifi driver.

As the code path for !CONFIG_PROC_DEBUG had not been tested properly, it
turned out to be incorrect and requires adding 'static inline' annotations
for the stub handlers, and moving some variables around.

Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_cmd.c

@@ -1744,6 +1744,8 @@ exit:
 	return res;
 }
 
+u32 g_wait_hiq_empty = 0;
+
 static void rtw_chk_hi_queue_hdl(struct adapter *padapter)
 {
 	struct sta_info *psta_bmc;

drivers/staging/rtl8723bs/core/rtw_debug.c

@@ -19,7 +19,7 @@
 
 u32 GlobalDebugLevel = _drv_err_;
 
-#ifdef CONFIG_DEBUG_RTL871X
+#ifdef DEBUG_RTL871X
 
 	u64 GlobalDebugComponents = \
 			_module_rtl871x_xmit_c_ |
@@ -52,7 +52,7 @@ u32 GlobalDebugLevel = _drv_err_;
 			_module_mp_ |
 			_module_efuse_;
 
-#endif /* CONFIG_DEBUG_RTL871X */
+#endif /* DEBUG_RTL871X */
 
 #include <rtw_version.h>
 
@@ -140,7 +140,7 @@ void rf_reg_dump(void *sel, struct adapter *adapter)
 	}
 }
 
-#ifdef CONFIG_PROC_DEBUG
+#ifdef PROC_DEBUG
 ssize_t proc_set_write_reg(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data)
 {
 	struct net_device *dev = data;
@@ -605,9 +605,6 @@ ssize_t proc_set_rate_ctl(struct file *file, const char __user *buffer, size_t c
 	return count;
 }
 
-u8 g_fwdl_chksum_fail = 0;
-u8 g_fwdl_wintint_rdy_fail = 0;
-
 ssize_t proc_set_fwdl_test_case(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data)
 {
 	char tmp[32];
@@ -622,8 +619,6 @@ ssize_t proc_set_fwdl_test_case(struct file *file, const char __user *buffer, si
 	return count;
 }
 
-u32 g_wait_hiq_empty = 0;
-
 ssize_t proc_set_wait_hiq_empty(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data)
 {
 	char tmp[32];

drivers/staging/rtl8723bs/core/rtw_mlme_ext.c

@@ -4844,7 +4844,7 @@ static void process_80211d(struct adapter *padapter, struct wlan_bssid_ex *bssid
 		}
 		chplan_ap.Len = i;
 
-#ifdef CONFIG_DEBUG_RTL871X
+#ifdef DEBUG_RTL871X
 		i = 0;
 		DBG_871X("%s: AP[%s] channel plan {", __func__, bssid->Ssid.Ssid);
 		while ((i < chplan_ap.Len) && (chplan_ap.Channel[i] != 0)) {
@@ -4855,7 +4855,7 @@ static void process_80211d(struct adapter *padapter, struct wlan_bssid_ex *bssid
 #endif
 
 		memcpy(chplan_sta, pmlmeext->channel_set, sizeof(chplan_sta));
-#ifdef CONFIG_DEBUG_RTL871X
+#ifdef DEBUG_RTL871X
 		i = 0;
 		DBG_871X("%s: STA channel plan {", __func__);
 		while ((i < MAX_CHANNEL_NUM) && (chplan_sta[i].ChannelNum != 0)) {
@@ -4992,7 +4992,7 @@ static void process_80211d(struct adapter *padapter, struct wlan_bssid_ex *bssid
 
 		pmlmeext->update_channel_plan_by_ap_done = 1;
 
-#ifdef CONFIG_DEBUG_RTL871X
+#ifdef DEBUG_RTL871X
 		k = 0;
 		DBG_871X("%s: new STA channel plan {", __func__);
 		while ((k < MAX_CHANNEL_NUM) && (chplan_new[k].ChannelNum != 0)) {

drivers/staging/rtl8723bs/hal/rtl8723b_cmd.c

@@ -2267,12 +2267,12 @@ void rtl8723b_download_BTCoex_AP_mode_rsvd_page(struct adapter *padapter)
 	DBG_8192C("+" FUNC_ADPT_FMT ": iface_type =%d fw_state = 0x%08X\n",
 		FUNC_ADPT_ARG(padapter), get_iface_type(padapter), get_fwstate(&padapter->mlmepriv));
 
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 	if (check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == false) {
 		DBG_8192C(FUNC_ADPT_FMT ": [WARNING] not in AP mode!!\n",
 			FUNC_ADPT_ARG(padapter));
 	}
-#endif /*  CONFIG_DEBUG */
+#endif /*  DEBUG */
 
 	pHalData = GET_HAL_DATA(padapter);
 	pmlmeext = &padapter->mlmeextpriv;

drivers/staging/rtl8723bs/hal/rtl8723b_hal_init.c

@@ -225,6 +225,8 @@ void _8051Reset8723(struct adapter *padapter)
 	DBG_8192C("%s: Finish\n", __func__);
 }
 
+u8 g_fwdl_chksum_fail = 0;
+
 static s32 polling_fwdl_chksum(
 	struct adapter *adapter, u32 min_cnt, u32 timeout_ms
 )
@@ -268,6 +270,8 @@ exit:
 	return ret;
 }
 
+u8 g_fwdl_wintint_rdy_fail = 0;
+
 static s32 _FWFreeToGo(struct adapter *adapter, u32 min_cnt, u32 timeout_ms)
 {
 	s32 ret = _FAIL;
@@ -896,7 +900,7 @@ static void hal_ReadEFuse_WiFi(
 	memset(efuseTbl, 0xFF, EFUSE_MAX_MAP_LEN);
 
 
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 if (0) {
 	for (i = 0; i < 256; i++)
 		efuse_OneByteRead(padapter, i, &efuseTbl[i], false);
@@ -969,7 +973,7 @@ if (0) {
 	for (i = 0; i < _size_byte; i++)
 		pbuf[i] = efuseTbl[_offset+i];
 
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 if (1) {
 	DBG_871X("Efuse Realmap:\n");
 	for (i = 0; i < _size_byte; i++) {
@@ -2602,7 +2606,7 @@ void Hal_EfuseParseTxPowerInfo_8723B(
 				pHalData->Index24G_CCK_Base[rfPath][ch] = pwrInfo24G.IndexCCK_Base[rfPath][group];
 				pHalData->Index24G_BW40_Base[rfPath][ch] = pwrInfo24G.IndexBW40_Base[rfPath][group];
 			}
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("======= Path %d, ChannelIndex %d, Group %d =======\n", rfPath, ch, group));
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("Index24G_CCK_Base[%d][%d] = 0x%x\n", rfPath, ch, pHalData->Index24G_CCK_Base[rfPath][ch]));
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("Index24G_BW40_Base[%d][%d] = 0x%x\n", rfPath, ch, pHalData->Index24G_BW40_Base[rfPath][ch]));
@@ -2615,7 +2619,7 @@ void Hal_EfuseParseTxPowerInfo_8723B(
 			pHalData->BW20_24G_Diff[rfPath][TxCount] = pwrInfo24G.BW20_Diff[rfPath][TxCount];
 			pHalData->BW40_24G_Diff[rfPath][TxCount] = pwrInfo24G.BW40_Diff[rfPath][TxCount];
 
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("--------------------------------------- 2.4G ---------------------------------------\n"));
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("CCK_24G_Diff[%d][%d]= %d\n", rfPath, TxCount, pHalData->CCK_24G_Diff[rfPath][TxCount]));
 			RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("OFDM_24G_Diff[%d][%d]= %d\n", rfPath, TxCount, pHalData->OFDM_24G_Diff[rfPath][TxCount]));

drivers/staging/rtl8723bs/include/autoconf.h

@@ -21,7 +21,7 @@
 /*
  * Functions Config
  */
-/* define CONFIG_DEBUG_CFG80211 */
+/* define DEBUG_CFG80211 */
 
 #ifndef CONFIG_WIRELESS_EXT
 #error CONFIG_WIRELESS_EXT needs to be enabled for this driver to work
@@ -56,16 +56,18 @@
 /*
  * Debug Related Config
  */
-#undef CONFIG_DEBUG
+#undef DEBUG
 
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 #define DBG	1	/*  for ODM & BTCOEX debug */
-/*#define CONFIG_DEBUG_RTL871X */
-#else /*  !CONFIG_DEBUG */
+/*#define DEBUG_RTL871X */
+#else /*  !DEBUG */
 #define DBG	0	/*  for ODM & BTCOEX debug */
-#endif /*  !CONFIG_DEBUG */
+#endif /*  !DEBUG */
 
-#define CONFIG_PROC_DEBUG
+#ifdef CONFIG_PROC_FS
+#define PROC_DEBUG
+#endif
 
 /* define DBG_XMIT_BUF */
 /* define DBG_XMIT_BUF_EXT */

drivers/staging/rtl8723bs/include/rtw_debug.h

@@ -206,7 +206,7 @@
 
 #endif /* defined(_dbgdump) */
 
-#ifdef CONFIG_DEBUG
+#ifdef DEBUG
 #if	defined(_dbgdump)
 	#undef DBG_871X
 	#define DBG_871X(...)     do {\
@@ -223,9 +223,9 @@
 		_dbgdump(DRIVER_PREFIX __VA_ARGS__);\
 	}while (0)
 #endif /* defined(_dbgdump) */
-#endif /* CONFIG_DEBUG */
+#endif /* DEBUG */
 
-#ifdef CONFIG_DEBUG_RTL871X
+#ifdef DEBUG_RTL871X
 
 #if	defined(_dbgdump) && defined(_MODULE_DEFINE_)
 
@@ -258,7 +258,7 @@
 			_dbgdump("\n");							\
 		}
 #endif /* defined(_dbgdump) */
-#endif /* CONFIG_DEBUG_RTL871X */
+#endif /* DEBUG_RTL871X */
 
 #ifdef CONFIG_DBG_COUNTER
 #define DBG_COUNTER(counter) counter++
@@ -275,7 +275,7 @@ void mac_reg_dump(void *sel, struct adapter *adapter);
 void bb_reg_dump(void *sel, struct adapter *adapter);
 void rf_reg_dump(void *sel, struct adapter *adapter);
 
-#ifdef CONFIG_PROC_DEBUG
+#ifdef PROC_DEBUG
 ssize_t proc_set_write_reg(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data);
 int proc_get_read_reg(struct seq_file *m, void *v);
 ssize_t proc_set_read_reg(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data);
@@ -350,6 +350,6 @@ int proc_get_tx_logs(struct seq_file *m, void *v);
 int proc_get_int_logs(struct seq_file *m, void *v);
 #endif
 
-#endif /* CONFIG_PROC_DEBUG */
+#endif /* PROC_DEBUG */
 
 #endif	/* __RTW_DEBUG_H__ */

drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c

@@ -1261,7 +1261,7 @@ static int cfg80211_rtw_get_station(struct wiphy *wiphy,
 		goto exit;
 	}
 
-#ifdef CONFIG_DEBUG_CFG80211
+#ifdef DEBUG_CFG80211
 	DBG_871X(FUNC_NDEV_FMT" mac ="MAC_FMT"\n", FUNC_NDEV_ARG(ndev), MAC_ARG(mac));
 #endif
 
@@ -1396,7 +1396,7 @@ void rtw_cfg80211_indicate_scan_done(struct adapter *adapter, bool aborted)
 
 	spin_lock_bh(&pwdev_priv->scan_req_lock);
 	if (pwdev_priv->scan_request != NULL) {
-		#ifdef CONFIG_DEBUG_CFG80211
+		#ifdef DEBUG_CFG80211
 		DBG_871X("%s with scan req\n", __func__);
 		#endif
 
@@ -1412,7 +1412,7 @@ void rtw_cfg80211_indicate_scan_done(struct adapter *adapter, bool aborted)
 
 		pwdev_priv->scan_request = NULL;
 	} else {
-		#ifdef CONFIG_DEBUG_CFG80211
+		#ifdef DEBUG_CFG80211
 		DBG_871X("%s without scan req\n", __func__);
 		#endif
 	}
@@ -1446,7 +1446,7 @@ void rtw_cfg80211_surveydone_event_callback(struct adapter *padapter)
 	struct __queue *queue	= &(pmlmepriv->scanned_queue);
 	struct	wlan_network	*pnetwork = NULL;
 
-#ifdef CONFIG_DEBUG_CFG80211
+#ifdef DEBUG_CFG80211
 	DBG_8192C("%s\n", __func__);
 #endif
 
@@ -1486,7 +1486,7 @@ static int rtw_cfg80211_set_probe_req_wpsp2pie(struct adapter *padapter, char *b
 	u8 *wps_ie;
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 
-#ifdef CONFIG_DEBUG_CFG80211
+#ifdef DEBUG_CFG80211
 	DBG_8192C("%s, ielen =%d\n", __func__, len);
 #endif
 
@@ -1494,7 +1494,7 @@ static int rtw_cfg80211_set_probe_req_wpsp2pie(struct adapter *padapter, char *b
 	{
 		if ((wps_ie = rtw_get_wps_ie(buf, len, NULL, &wps_ielen)))
 		{
-			#ifdef CONFIG_DEBUG_CFG80211
+			#ifdef DEBUG_CFG80211
 			DBG_8192C("probe_req_wps_ielen =%d\n", wps_ielen);
 			#endif
 
@@ -1548,7 +1548,7 @@ static int cfg80211_rtw_scan(struct wiphy *wiphy
 	pwdev_priv = adapter_wdev_data(padapter);
 	pmlmepriv = &padapter->mlmepriv;
 
-/* ifdef CONFIG_DEBUG_CFG80211 */
+/* ifdef DEBUG_CFG80211 */
 	DBG_871X(FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(padapter));
 /* endif */
 
@@ -1558,7 +1558,7 @@ static int cfg80211_rtw_scan(struct wiphy *wiphy
 
 	if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true)
 	{
-#ifdef CONFIG_DEBUG_CFG80211
+#ifdef DEBUG_CFG80211
 		DBG_871X("%s under WIFI_AP_STATE\n", __func__);
 #endif
 
@@ -1621,7 +1621,7 @@ static int cfg80211_rtw_scan(struct wiphy *wiphy
 	memset(ssid, 0, sizeof(struct ndis_802_11_ssid)*RTW_SSID_SCAN_AMOUNT);
 	/* parsing request ssids, n_ssids */
 	for (i = 0; i < request->n_ssids && i < RTW_SSID_SCAN_AMOUNT; i++) {
-		#ifdef CONFIG_DEBUG_CFG80211
+		#ifdef DEBUG_CFG80211
 		DBG_8192C("ssid =%s, len =%d\n", ssids[i].ssid, ssids[i].ssid_len);
 		#endif
 		memcpy(ssid[i].Ssid, ssids[i].ssid, ssids[i].ssid_len);
@@ -1631,7 +1631,7 @@ static int cfg80211_rtw_scan(struct wiphy *wiphy
 	/* parsing channels, n_channels */
 	memset(ch, 0, sizeof(struct rtw_ieee80211_channel)*RTW_CHANNEL_SCAN_AMOUNT);
 	for (i = 0;i<request->n_channels && i<RTW_CHANNEL_SCAN_AMOUNT;i++) {
-		#ifdef CONFIG_DEBUG_CFG80211
+		#ifdef DEBUG_CFG80211
 		DBG_871X(FUNC_ADPT_FMT CHAN_FMT"\n", FUNC_ADPT_ARG(padapter), CHAN_ARG(request->channels[i]));
 		#endif
 		ch[i].hw_value = request->channels[i]->hw_value;
@@ -3105,7 +3105,7 @@ static int _cfg80211_rtw_mgmt_tx(struct adapter *padapter, u8 tx_ch, const u8 *b
 		ack = false;
 		ret = _FAIL;
 
-		#ifdef CONFIG_DEBUG_CFG80211
+		#ifdef DEBUG_CFG80211
 		DBG_8192C("%s, ack == _FAIL\n", __func__);
 		#endif
 	}
@@ -3114,7 +3114,7 @@ static int _cfg80211_rtw_mgmt_tx(struct adapter *padapter, u8 tx_ch, const u8 *b
 
 		msleep(50);
 
-		#ifdef CONFIG_DEBUG_CFG80211
+		#ifdef DEBUG_CFG80211
 		DBG_8192C("%s, ack =%d, ok!\n", __func__, ack);
 		#endif
 		ret = _SUCCESS;
@@ -3122,7 +3122,7 @@ static int _cfg80211_rtw_mgmt_tx(struct adapter *padapter, u8 tx_ch, const u8 *b
 
 exit:
 
-	#ifdef CONFIG_DEBUG_CFG80211
+	#ifdef DEBUG_CFG80211
 	DBG_8192C("%s, ret =%d\n", __func__, ret);
 	#endif
 
@@ -3161,12 +3161,12 @@ static int cfg80211_rtw_mgmt_tx(struct wiphy *wiphy,
 	/* cookie generation */
 	*cookie = (unsigned long) buf;
 
-#ifdef CONFIG_DEBUG_CFG80211
+#ifdef DEBUG_CFG80211
 	DBG_871X(FUNC_ADPT_FMT" len =%zu, ch =%d"
 		"\n", FUNC_ADPT_ARG(padapter),
 		len, tx_ch
 	);
-#endif /* CONFIG_DEBUG_CFG80211 */
+#endif /* DEBUG_CFG80211 */
 
 	/* indicate ack before issue frame to avoid racing with rsp frame */
 	rtw_cfg80211_mgmt_tx_status(padapter, *cookie, buf, len, ack, GFP_KERNEL);
@@ -3234,7 +3234,7 @@ static void cfg80211_rtw_mgmt_frame_register(struct wiphy *wiphy,
 
 	adapter = (struct adapter *)rtw_netdev_priv(ndev);
 
-#ifdef CONFIG_DEBUG_CFG80211
+#ifdef DEBUG_CFG80211
 	DBG_871X(FUNC_ADPT_FMT" frame_type:%x, reg:%d\n", FUNC_ADPT_ARG(adapter),
 		frame_type, reg);
 #endif

drivers/staging/rtl8723bs/os_dep/ioctl_linux.c

@@ -4831,7 +4831,7 @@ static int rtw_wx_set_priv(struct net_device *dev,
 				char *extra)
 {
 
-#ifdef CONFIG_DEBUG_RTW_WX_SET_PRIV
+#ifdef DEBUG_RTW_WX_SET_PRIV
 	char *ext_dbg;
 #endif
 
@@ -4860,7 +4860,7 @@ static int rtw_wx_set_priv(struct net_device *dev,
 	/* 	 ("rtw_wx_set_priv: %s req =%s\n", */
 	/* 	  dev->name, ext)); */
 
-	#ifdef CONFIG_DEBUG_RTW_WX_SET_PRIV
+	#ifdef DEBUG_RTW_WX_SET_PRIV
 	if (!(ext_dbg = vmalloc(len)))
 	{
 		vfree(ext, len);
@@ -4918,7 +4918,7 @@ static int rtw_wx_set_priv(struct net_device *dev,
 FREE_EXT:
 
 	vfree(ext);
-	#ifdef CONFIG_DEBUG_RTW_WX_SET_PRIV
+	#ifdef DEBUG_RTW_WX_SET_PRIV
 	vfree(ext_dbg);
 	#endif
 

drivers/staging/rtl8723bs/os_dep/rtw_proc.c

@@ -17,7 +17,7 @@
 #include <rtw_debug.h>
 #include "rtw_proc.h"
 
-#ifdef CONFIG_PROC_DEBUG
+#ifdef PROC_DEBUG
 
 static struct proc_dir_entry *rtw_proc = NULL;
 
@@ -784,4 +784,4 @@ void rtw_adapter_proc_replace(struct net_device *dev)
 
 }
 
-#endif /* CONFIG_PROC_DEBUG */
+#endif /* PROC_DEBUG */

drivers/staging/rtl8723bs/os_dep/rtw_proc.h

@@ -24,7 +24,7 @@ struct rtw_proc_hdl {
 	ssize_t (*write)(struct file *file, const char __user *buffer, size_t count, loff_t *pos, void *data);
 };
 
-#ifdef CONFIG_PROC_DEBUG
+#ifdef PROC_DEBUG
 
 int rtw_drv_proc_init(void);
 void rtw_drv_proc_deinit(void);
@@ -32,14 +32,14 @@ struct proc_dir_entry *rtw_adapter_proc_init(struct net_device *dev);
 void rtw_adapter_proc_deinit(struct net_device *dev);
 void rtw_adapter_proc_replace(struct net_device *dev);
 
-#else //!CONFIG_PROC_DEBUG
+#else //!PROC_DEBUG
 
-int rtw_drv_proc_init(void) {return 0;}
-void rtw_drv_proc_deinit(void) {}
-struct proc_dir_entry *rtw_adapter_proc_init(struct net_device *dev){return NULL;}
-void rtw_adapter_proc_deinit(struct net_device *dev){}
-void rtw_adapter_proc_replace(struct net_device *dev){}
+static inline int rtw_drv_proc_init(void) {return 0;}
+static inline void rtw_drv_proc_deinit(void) {}
+static inline struct proc_dir_entry *rtw_adapter_proc_init(struct net_device *dev){return NULL;}
+static inline void rtw_adapter_proc_deinit(struct net_device *dev){}
+static inline void rtw_adapter_proc_replace(struct net_device *dev){}
 
-#endif //!CONFIG_PROC_DEBUG
+#endif //!PROC_DEBUG
 
 #endif //__RTW_PROC_H__