Re: Fwd: Re: TP-Link 8200ND - rtl8192cu module not loading / working

[Larry Finger <Larry.Finger@lwfinger.net>]

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On 06/26/2013 12:29 PM, shiki.biomernok wrote:
> Hello Larry/Mailing list!
>
> I have compiled and installed the new wireless-testing kernel from git.
> I'm sure I used the new kernel, as the device lighted up as soon as I plugged
> in. (And I got some new atheros ac module at "make oldconfig".)
> There was no need for manual echo or modprobe.
>
> Yet, the device is not working. It dies at the very same step.
> Here is the dmesg: http://pastebin.com/C1MNdFiw
>
> Please, let me know if I can help with anything.
> Any debug option, patch or things like that.
>
> My offer is still there Larry, I'm willing to give you a full SSH access to the
> machine with this stuff plugged in.
> Besides that, I have no other idea.
>
>
> ! My router runs OpenWRT (latest stable), so I could also gather info from
> there. If it's possible.
> (I checked dmesg but there is nothing. Only some non-crucial info about the
> generic eth ports and such.)
>
> Thank you for the help.
>
> (By the way if the chip is rare (no other people will benefit), then I can just
> get it back and ask for a refund. But if others use it as well, then it's not a
> waste of time... I guess.)

I think the TP-Link 8200ND is relatively new. You have version 0x11 for your 
chip, and mine is 0x10. That could be a difference.

Whay are you forcing the module loading? As indicated by the (F) in the 
traceback, it looks as if all of them are being forced.

[   13.111932] BUG: unable to handle kernel NULL pointer dereference at 
0000000000000005
[   13.111943] IP: [<ffffffffa03196c7>] iwl_dbgfs_register+0x27/0x70 [iwldvm]
[   13.111944] PGD 0
[   13.111945] Oops: 0000 [#1] PREEMPT SMP
[   13.111964] Modules linked in: arc4(F) snd_hda_codec(F) snd_hwdep(F) 
snd_pcm(F) iwldvm(F+) snd_page_alloc(F) thinkpad_acpi(F) nvram(F) mac80211(F) 
snd_seq_midi(F) i915(F+) snd_seq_midi_event(F) drm_kms_helper(F) snd_rawmidi(F) 
drm(F) snd_seq(F) snd_timer(F) coretemp(F) snd_seq_device(F) r592(F) 
i2c_algo_bit(F) snd(F) iwlwifi(F) soundcore(F) tpm_tis(F) memstick(F) btusb(F) 
microcode(F) psmouse(F) bluetooth(F) serio_raw(F) wmi(F) cfg80211(F) video(F) 
lpc_ich(F) hid_generic(F) usbhid(F) hid(F) sdhci_pci(F) sdhci(F) ahci(F) 
libahci(F) e1000e(F) ptp(F) pps_core(F)
[   13.111967] CPU: 1 PID: 741 Comm: modprobe Tainted: GF 
3.10.0-rc7-wl-x1-1000hz-wifitesting #1
[   13.111968] Hardware name: LENOVO 208252G/208252G, BIOS 6FET92WW (3.22 ) 
12/14/2011
[   13.111969] task: ffff8801a3f5d640 ti: ffff8801a1b9e000 task.ti: ffff8801a1b9e000
[   13.111975] RIP: 0010:[<ffffffffa03196c7>]  [<ffffffffa03196c7>] 
iwl_dbgfs_register+0x27/0x70 [iwldvm]

To help us debug this matter, the attached patch will let you compile the vendor 
driver that you downloaded from the vendor site.

Larry



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Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_mlme_ext.c
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/core/rtw_mlme_ext.c
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_mlme_ext.c
@@ -1053,8 +1053,8 @@ unsigned int OnAuth(_adapter *padapter,
 	sa = GetAddr2Ptr(pframe);
 	
 	auth_mode = psecuritypriv->dot11AuthAlgrthm;
-	seq = cpu_to_le16(*(unsigned short *)((unsigned int)pframe + WLAN_HDR_A3_LEN + 2));
-	algorithm = cpu_to_le16(*(unsigned short *)((unsigned int)pframe + WLAN_HDR_A3_LEN));
+	seq = cpu_to_le16(*(unsigned short *)((unsigned long)pframe + WLAN_HDR_A3_LEN + 2));
+	algorithm = cpu_to_le16(*(unsigned short *)((unsigned long)pframe + WLAN_HDR_A3_LEN));
 
 	if (GetPrivacy(pframe))
 	{	
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_p2p.c
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/core/rtw_p2p.c
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_p2p.c
@@ -2595,7 +2595,7 @@ u8 process_p2p_group_negotation_confirm(
 		_rtw_memset( groupid, 0x00, 38 );
 		if ( rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_GROUP_ID, groupid, &attr_contentlen) )
 		{
-			DBG_8192C( "[%s] Ssid = %s, ssidlen = %d\n", __FUNCTION__, &groupid[ETH_ALEN], strlen(&groupid[ETH_ALEN]) );
+			DBG_8192C( "[%s] Ssid = %s, ssidlen = %d\n", __FUNCTION__, &groupid[ETH_ALEN], (int)strlen(&groupid[ETH_ALEN]) );
 			_rtw_memcpy( pwdinfo->groupid_info.go_device_addr, &groupid[0], ETH_ALEN );
 			_rtw_memcpy( pwdinfo->groupid_info.ssid, &groupid[6], attr_contentlen - ETH_ALEN );			
 		}
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/include/rtw_recv.h
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/include/rtw_recv.h
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/include/rtw_recv.h
@@ -623,7 +623,7 @@ __inline static union recv_frame *rxmem_
 	//from any given member of recv_frame.
 	// rxmem indicates the any member/address in recv_frame
 	
-	return (union recv_frame*)(((uint)rxmem>>RXFRAME_ALIGN) <<RXFRAME_ALIGN) ;
+	return (union recv_frame*)(((ulong)rxmem>>RXFRAME_ALIGN) <<RXFRAME_ALIGN) ;
 	
 }
 
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_br_ext.c
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/core/rtw_br_ext.c
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_br_ext.c
@@ -126,11 +126,11 @@ static int skb_pull_and_merge(struct sk_
 	int tail_len;
 	unsigned long end, tail;
 
-	if ((src+len) > skb->tail || skb->len < len)
-		return -1;
-
 	tail = (unsigned long)skb->tail;
 	end = (unsigned long)src+len;
+	if ((end) > tail || skb->len < len)
+		return -1;
+
 	if (tail < end)
 		return -1;
 
@@ -1633,13 +1633,13 @@ void dhcp_flag_bcast(_adapter *priv, str
 
 			if(iph->protocol == IPPROTO_UDP) // UDP
 			{
-				struct udphdr *udph = (struct udphdr *)((unsigned int)iph + (iph->ihl << 2));
+				struct udphdr *udph = (struct udphdr *)((unsigned long)iph + (iph->ihl << 2));
 
 				if((udph->source == __constant_htons(CLIENT_PORT))
 					&& (udph->dest == __constant_htons(SERVER_PORT))) // DHCP request
 				{
 					struct dhcpMessage *dhcph =
-						(struct dhcpMessage *)((unsigned int)udph + sizeof(struct udphdr));
+						(struct dhcpMessage *)((unsigned long)udph + sizeof(struct udphdr));
 
 					if(dhcph->cookie == __constant_htonl(DHCP_MAGIC)) // match magic word
 					{
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_recv.c
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/core/rtw_recv.c
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/core/rtw_recv.c
@@ -3305,7 +3305,7 @@ static int amsdu_to_msdu(_adapter *padap
 			{
 				sub_skb->data = pdata;
 				sub_skb->len = nSubframe_Length;
-				sub_skb->tail = sub_skb->data + nSubframe_Length;
+				skb_set_tail_pointer(sub_skb, nSubframe_Length);
 			}
 			else
 			{
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/os_dep/linux/ioctl_linux.c
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/os_dep/linux/ioctl_linux.c
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/os_dep/linux/ioctl_linux.c
@@ -143,7 +143,7 @@ static void indicate_wx_custom_event(_ad
 	union iwreq_data wrqu;
 
 	if (strlen(msg) > IW_CUSTOM_MAX) {
-		DBG_871X("%s strlen(msg):%u > IW_CUSTOM_MAX:%u\n", __FUNCTION__ ,strlen(msg), IW_CUSTOM_MAX);
+		DBG_871X("%s strlen(msg):%u > IW_CUSTOM_MAX:%u\n", __FUNCTION__ ,(uint)strlen(msg), IW_CUSTOM_MAX);
 		return;
 	}
 
@@ -3865,7 +3865,7 @@ static int rtw_p2p_set_go_nego_ssid(stru
 	struct iw_point *pdata = &wrqu->data;
 	struct wifidirect_info *pwdinfo= &(padapter->wdinfo);
 
-	DBG_8192C( "[%s] ssid = %s, len = %d\n", __FUNCTION__, extra, strlen( extra ) );
+	DBG_8192C( "[%s] ssid = %s, len = %d\n", __FUNCTION__, extra, (int)strlen( extra ) );
 	_rtw_memcpy( pwdinfo->nego_ssid, extra, strlen( extra ) );
 	pwdinfo->nego_ssidlen = strlen( extra );
 	
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/include/drv_types.h
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/include/drv_types.h
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/include/drv_types.h
@@ -462,10 +462,10 @@ struct _ADAPTER{
 	u8	bfirst_init;
 	u8	bHaltInProgress;
 	
-	_thread_hdl_	cmdThread;
-	_thread_hdl_	evtThread;
-	_thread_hdl_	xmitThread;
-	_thread_hdl_	recvThread;
+	void *cmdThread;
+	void *evtThread;
+	void *xmitThread;
+	void *recvThread;
 
 
 	NDIS_STATUS (*dvobj_init)(_adapter * adapter);
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/os_dep/linux/os_intfs.c
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/os_dep/linux/os_intfs.c
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/os_dep/linux/os_intfs.c
@@ -35,6 +35,10 @@
 #include <rtw_ioctl.h>
 #include <rtw_version.h>
 
+#ifdef PLATFORM_LINUX
+#include <linux/kthread.h>
+#endif
+
 #ifdef CONFIG_SDIO_HCI
 #include <sdio_osintf.h>
 #endif
@@ -255,6 +259,17 @@ static char rtw_proc_name[IFNAMSIZ];
 static struct proc_dir_entry *rtw_proc = NULL;
 static int	rtw_proc_cnt = 0;
 
+#ifndef create_proc_entry
+/* dummy routines */
+void rtw_proc_remove_one(struct net_device *dev)
+{
+}
+
+void rtw_proc_init_one(struct net_device *dev)
+{
+}
+
+#else	/* create_proc_entry not defined */
 void rtw_proc_init_one(struct net_device *dev)
 {
 	struct proc_dir_entry *dir_dev = NULL;
@@ -518,6 +533,7 @@ void rtw_proc_remove_one(struct net_devi
 	}
 }
 #endif
+#endif
 
 uint loadparam( _adapter *padapter,  _nic_hdl	pnetdev)
 {
@@ -790,27 +806,27 @@ u32 rtw_start_drv_threads(_adapter *pada
 	RT_TRACE(_module_os_intfs_c_,_drv_info_,("+rtw_start_drv_threads\n"));
 
 #ifdef CONFIG_SDIO_HCI
-	padapter->xmitThread = kernel_thread(rtw_xmit_thread, padapter, CLONE_FS|CLONE_FILES);
-	if(padapter->xmitThread < 0)
+	padapter->xmitThread = kthread_run(rtw_xmit_thread, padapter, "xmitThread");
+	if(IS_ERR(padapter->xmitThread))
 		_status = _FAIL;
 #endif
 
 #ifdef CONFIG_RECV_THREAD_MODE
-	padapter->recvThread = kernel_thread(recv_thread, padapter, CLONE_FS|CLONE_FILES);
-	if(padapter->recvThread < 0)
+	padapter->recvThread = kthread_run(recv_thread, padapter, "recvThread");
+	if(IS_ERR(padapter->recvThread))
 		_status = _FAIL;	
 #endif
 
-	padapter->cmdThread = kernel_thread(rtw_cmd_thread, padapter, CLONE_FS|CLONE_FILES);
-	if(padapter->cmdThread < 0)
+	padapter->cmdThread = kthread_run(rtw_cmd_thread, padapter, "cmdThread");
+	if(IS_ERR(padapter->cmdThread))
 		_status = _FAIL;
 	else
 		_rtw_down_sema(&padapter->cmdpriv.terminate_cmdthread_sema); //wait for cmd_thread to run
 		
 
 #ifdef CONFIG_EVENT_THREAD_MODE
-	padapter->evtThread = kernel_thread(event_thread, padapter, CLONE_FS|CLONE_FILES);
-	if(padapter->evtThread < 0)
+	padapter->evtThread = kthread_run(event_thread, padapter, "evtThread");
+	if(IS_ERR(padapter->evtThread))
 		_status = _FAIL;		
 #endif
 
Index: rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/include/osdep_service.h
===================================================================
--- rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730.orig/include/osdep_service.h
+++ rtl8188C_8192C_usb_linux_v3.4.4_4749.20120730/include/osdep_service.h
@@ -570,10 +570,12 @@ __inline static unsigned char _cancel_ti
 __inline static void thread_enter(void *context)
 {
 #ifdef PLATFORM_LINUX
+	#ifdef daemonize
 	//struct net_device *pnetdev = (struct net_device *)context;
 	//daemonize("%s", pnetdev->name);
 	daemonize("%s", "RTKTHREAD");
 	allow_signal(SIGTERM);
+	#endif
 #endif
 }