tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git master
head:   9f8f2e094230a70372026b237890dc438be83bd8
commit: b09be676e0ff25bd6d2e7637e26d349f9109ad75 [26/52] locking/lockdep: 
Implement the 'crossrelease' feature
config: xtensa-allmodconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 4.9.0
reproduce:
        wget 
https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout b09be676e0ff25bd6d2e7637e26d349f9109ad75
        # save the attached .config to linux build tree
        make.cross ARCH=xtensa 

All errors (new ones prefixed by >>):

   drivers/staging/rtl8188eu/core/rtw_ap.c: In function 'expire_timeout_chk':
>> drivers/staging/rtl8188eu/core/rtw_ap.c:445:1: internal compiler error: in 
>> change_address_1, at emit-rtl.c:1928
    }
    ^
   0x61e86c change_address_1
        /home/tony/buildall/src/gcc/gcc/emit-rtl.c:1928
   0x61ed31 adjust_address_1(rtx_def*, machine_mode, long, int, int, int, long)
        /home/tony/buildall/src/gcc/gcc/emit-rtl.c:2060
   0xa1971e xtensa_split_operand_pair(rtx_def**, machine_mode)
        /home/tony/buildall/src/gcc/gcc/config/xtensa/xtensa.c:1002
   0xa2074c gen_split_78(rtx_def*, rtx_def**)
        /home/tony/buildall/src/gcc/gcc/config/xtensa/xtensa.md:781
   0x61d9f1 try_split(rtx_def*, rtx_def*, int)
        /home/tony/buildall/src/gcc/gcc/emit-rtl.c:3440
   0x7bab61 split_insn
        /home/tony/buildall/src/gcc/gcc/recog.c:2884
   0x7bae19 split_all_insns()
        /home/tony/buildall/src/gcc/gcc/recog.c:2974
   0x7baed2 rest_of_handle_split_after_reload
        /home/tony/buildall/src/gcc/gcc/recog.c:3923
   0x7baed2 execute
        /home/tony/buildall/src/gcc/gcc/recog.c:3952
   Please submit a full bug report,
   with preprocessed source if appropriate.
   Please include the complete backtrace with any bug report.
   See <http://gcc.gnu.org/bugs.html> for instructions.

vim +445 drivers/staging/rtl8188eu/core/rtw_ap.c

9a7fe54dd Larry Finger    2013-08-21  278  
9a7fe54dd Larry Finger    2013-08-21  279  void expire_timeout_chk(struct 
adapter *padapter)
9a7fe54dd Larry Finger    2013-08-21  280  {
9a7fe54dd Larry Finger    2013-08-21  281       struct list_head *phead, *plist;
9a7fe54dd Larry Finger    2013-08-21  282       u8 updated = 0;
9a7fe54dd Larry Finger    2013-08-21  283       struct sta_info *psta = NULL;
9a7fe54dd Larry Finger    2013-08-21  284       struct sta_priv *pstapriv = 
&padapter->stapriv;
9a7fe54dd Larry Finger    2013-08-21  285       u8 chk_alive_num = 0;
9a7fe54dd Larry Finger    2013-08-21  286       char chk_alive_list[NUM_STA];
9a7fe54dd Larry Finger    2013-08-21  287       int i;
9a7fe54dd Larry Finger    2013-08-21  288  
7057dcb3a Larry Finger    2013-12-19  289       
spin_lock_bh(&pstapriv->auth_list_lock);
9a7fe54dd Larry Finger    2013-08-21  290  
9a7fe54dd Larry Finger    2013-08-21  291       phead = &pstapriv->auth_list;
c44e5e39c Larry Finger    2014-02-09  292       plist = phead->next;
9a7fe54dd Larry Finger    2013-08-21  293  
9a7fe54dd Larry Finger    2013-08-21  294       /* check auth_queue */
846607008 navin patidar   2014-06-22  295       while (phead != plist) {
bea881004 Larry Finger    2014-02-09  296               psta = 
container_of(plist, struct sta_info, auth_list);
c44e5e39c Larry Finger    2014-02-09  297               plist = plist->next;
9a7fe54dd Larry Finger    2013-08-21  298  
9a7fe54dd Larry Finger    2013-08-21  299               if (psta->expire_to > 
0) {
9a7fe54dd Larry Finger    2013-08-21  300                       
psta->expire_to--;
9a7fe54dd Larry Finger    2013-08-21  301                       if 
(psta->expire_to == 0) {
8d5bdece4 navin patidar   2014-06-22  302                               
list_del_init(&psta->auth_list);
9a7fe54dd Larry Finger    2013-08-21  303                               
pstapriv->auth_list_cnt--;
9a7fe54dd Larry Finger    2013-08-21  304  
9a7fe54dd Larry Finger    2013-08-21  305                               
DBG_88E("auth expire %6ph\n",
9a7fe54dd Larry Finger    2013-08-21  306                                       
psta->hwaddr);
9a7fe54dd Larry Finger    2013-08-21  307  
e02bcf612 Larry Finger    2013-12-19  308                               
spin_unlock_bh(&pstapriv->auth_list_lock);
9a7fe54dd Larry Finger    2013-08-21  309  
8943880ef Scott Matheina  2017-01-05  310                               
spin_lock_bh(&pstapriv->sta_hash_lock);
9a7fe54dd Larry Finger    2013-08-21  311                               
rtw_free_stainfo(padapter, psta);
8943880ef Scott Matheina  2017-01-05  312                               
spin_unlock_bh(&pstapriv->sta_hash_lock);
9a7fe54dd Larry Finger    2013-08-21  313  
7057dcb3a Larry Finger    2013-12-19  314                               
spin_lock_bh(&pstapriv->auth_list_lock);
9a7fe54dd Larry Finger    2013-08-21  315                       }
9a7fe54dd Larry Finger    2013-08-21  316               }
9a7fe54dd Larry Finger    2013-08-21  317  
9a7fe54dd Larry Finger    2013-08-21  318       }
e02bcf612 Larry Finger    2013-12-19  319       
spin_unlock_bh(&pstapriv->auth_list_lock);
9a7fe54dd Larry Finger    2013-08-21  320  
9a7fe54dd Larry Finger    2013-08-21  321       psta = NULL;
9a7fe54dd Larry Finger    2013-08-21  322  
7057dcb3a Larry Finger    2013-12-19  323       
spin_lock_bh(&pstapriv->asoc_list_lock);
9a7fe54dd Larry Finger    2013-08-21  324  
9a7fe54dd Larry Finger    2013-08-21  325       phead = &pstapriv->asoc_list;
c44e5e39c Larry Finger    2014-02-09  326       plist = phead->next;
9a7fe54dd Larry Finger    2013-08-21  327  
9a7fe54dd Larry Finger    2013-08-21  328       /* check asoc_queue */
846607008 navin patidar   2014-06-22  329       while (phead != plist) {
bea881004 Larry Finger    2014-02-09  330               psta = 
container_of(plist, struct sta_info, asoc_list);
c44e5e39c Larry Finger    2014-02-09  331               plist = plist->next;
9a7fe54dd Larry Finger    2013-08-21  332  
9a7fe54dd Larry Finger    2013-08-21  333               if 
(chk_sta_is_alive(psta) || !psta->expire_to) {
9a7fe54dd Larry Finger    2013-08-21  334                       psta->expire_to 
= pstapriv->expire_to;
9a7fe54dd Larry Finger    2013-08-21  335                       
psta->keep_alive_trycnt = 0;
9a7fe54dd Larry Finger    2013-08-21  336                       
psta->under_exist_checking = 0;
9a7fe54dd Larry Finger    2013-08-21  337               } else {
9a7fe54dd Larry Finger    2013-08-21  338                       
psta->expire_to--;
9a7fe54dd Larry Finger    2013-08-21  339               }
9a7fe54dd Larry Finger    2013-08-21  340  
9a7fe54dd Larry Finger    2013-08-21  341               if (psta->expire_to <= 
0) {
9a7fe54dd Larry Finger    2013-08-21  342                       struct 
mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
9a7fe54dd Larry Finger    2013-08-21  343  
9a7fe54dd Larry Finger    2013-08-21  344                       if 
(padapter->registrypriv.wifi_spec == 1) {
9a7fe54dd Larry Finger    2013-08-21  345                               
psta->expire_to = pstapriv->expire_to;
9a7fe54dd Larry Finger    2013-08-21  346                               
continue;
9a7fe54dd Larry Finger    2013-08-21  347                       }
9a7fe54dd Larry Finger    2013-08-21  348  
9a7fe54dd Larry Finger    2013-08-21  349                       if (psta->state 
& WIFI_SLEEP_STATE) {
9a7fe54dd Larry Finger    2013-08-21  350                               if 
(!(psta->state & WIFI_STA_ALIVE_CHK_STATE)) {
0a36d5fbd Jagan Teki      2015-05-18  351                                       
/* to check if alive by another methods
0a36d5fbd Jagan Teki      2015-05-18  352                                       
 * if station is at ps mode.
0a36d5fbd Jagan Teki      2015-05-18  353                                       
 */
9a7fe54dd Larry Finger    2013-08-21  354                                       
psta->expire_to = pstapriv->expire_to;
9a7fe54dd Larry Finger    2013-08-21  355                                       
psta->state |= WIFI_STA_ALIVE_CHK_STATE;
9a7fe54dd Larry Finger    2013-08-21  356  
0a36d5fbd Jagan Teki      2015-05-18  357                                       
/* to update bcn with tim_bitmap
0a36d5fbd Jagan Teki      2015-05-18  358                                       
 * for this station
0a36d5fbd Jagan Teki      2015-05-18  359                                       
 */
9a7fe54dd Larry Finger    2013-08-21  360                                       
pstapriv->tim_bitmap |= BIT(psta->aid);
945cd4726 Scott Matheina  2017-01-05  361                                       
update_beacon(padapter, _TIM_IE_, NULL,
945cd4726 Scott Matheina  2017-01-05  362                                       
              false);
9a7fe54dd Larry Finger    2013-08-21  363  
9a7fe54dd Larry Finger    2013-08-21  364                                       
if (!pmlmeext->active_keep_alive_check)
9a7fe54dd Larry Finger    2013-08-21  365                                       
        continue;
9a7fe54dd Larry Finger    2013-08-21  366                               }
9a7fe54dd Larry Finger    2013-08-21  367                       }
9a7fe54dd Larry Finger    2013-08-21  368                       if 
(pmlmeext->active_keep_alive_check) {
9a7fe54dd Larry Finger    2013-08-21  369                               int 
stainfo_offset;
9a7fe54dd Larry Finger    2013-08-21  370  
249472588 Sreenath Madasu 2015-07-08  371                               
stainfo_offset =
249472588 Sreenath Madasu 2015-07-08  372                                       
rtw_stainfo_offset(pstapriv, psta);
9a7fe54dd Larry Finger    2013-08-21  373                               if 
(stainfo_offset_valid(stainfo_offset))
9a7fe54dd Larry Finger    2013-08-21  374                                       
chk_alive_list[chk_alive_num++] = stainfo_offset;
9a7fe54dd Larry Finger    2013-08-21  375                               
continue;
9a7fe54dd Larry Finger    2013-08-21  376                       }
9a7fe54dd Larry Finger    2013-08-21  377  
8d5bdece4 navin patidar   2014-06-22  378                       
list_del_init(&psta->asoc_list);
9a7fe54dd Larry Finger    2013-08-21  379                       
pstapriv->asoc_list_cnt--;
9a7fe54dd Larry Finger    2013-08-21  380  
9a7fe54dd Larry Finger    2013-08-21  381                       DBG_88E("asoc 
expire %pM, state = 0x%x\n", (psta->hwaddr), psta->state);
9a7fe54dd Larry Finger    2013-08-21  382                       updated = 
ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING);
9a7fe54dd Larry Finger    2013-08-21  383               } else {
9a7fe54dd Larry Finger    2013-08-21  384                       /* TODO: Aging 
mechanism to digest frames in sleep_q to avoid running out of xmitframe */
9a7fe54dd Larry Finger    2013-08-21  385                       if 
(psta->sleepq_len > (NR_XMITFRAME / pstapriv->asoc_list_cnt) &&
9a7fe54dd Larry Finger    2013-08-21  386                           
padapter->xmitpriv.free_xmitframe_cnt < (NR_XMITFRAME / pstapriv->asoc_list_cnt 
/ 2)) {
9a7fe54dd Larry Finger    2013-08-21  387                               
DBG_88E("%s sta:%pM, sleepq_len:%u, free_xmitframe_cnt:%u, asoc_list_cnt:%u, 
clear sleep_q\n", __func__,
9a7fe54dd Larry Finger    2013-08-21  388                                       
(psta->hwaddr), psta->sleepq_len,
9a7fe54dd Larry Finger    2013-08-21  389                                       
padapter->xmitpriv.free_xmitframe_cnt,
9a7fe54dd Larry Finger    2013-08-21  390                                       
pstapriv->asoc_list_cnt);
9a7fe54dd Larry Finger    2013-08-21  391                               
wakeup_sta_to_xmit(padapter, psta);
9a7fe54dd Larry Finger    2013-08-21  392                       }
9a7fe54dd Larry Finger    2013-08-21  393               }
9a7fe54dd Larry Finger    2013-08-21  394       }
9a7fe54dd Larry Finger    2013-08-21  395  
e02bcf612 Larry Finger    2013-12-19  396       
spin_unlock_bh(&pstapriv->asoc_list_lock);
9a7fe54dd Larry Finger    2013-08-21  397  
9a7fe54dd Larry Finger    2013-08-21  398       if (chk_alive_num) {
9a7fe54dd Larry Finger    2013-08-21  399               u8 backup_oper_channel 
= 0;
9a7fe54dd Larry Finger    2013-08-21  400               struct mlme_ext_priv 
*pmlmeext = &padapter->mlmeextpriv;
9a7fe54dd Larry Finger    2013-08-21  401               /* switch to correct 
channel of current network  before issue keep-alive frames */
9a7fe54dd Larry Finger    2013-08-21  402               if 
(rtw_get_oper_ch(padapter) != pmlmeext->cur_channel) {
9a7fe54dd Larry Finger    2013-08-21  403                       
backup_oper_channel = rtw_get_oper_ch(padapter);
9a7fe54dd Larry Finger    2013-08-21  404                       
SelectChannel(padapter, pmlmeext->cur_channel);
9a7fe54dd Larry Finger    2013-08-21  405               }
9a7fe54dd Larry Finger    2013-08-21  406  
9a7fe54dd Larry Finger    2013-08-21  407               /* issue null data to 
check sta alive*/
9a7fe54dd Larry Finger    2013-08-21  408               for (i = 0; i < 
chk_alive_num; i++) {
9a7fe54dd Larry Finger    2013-08-21  409                       int ret = _FAIL;
9a7fe54dd Larry Finger    2013-08-21  410  
9a7fe54dd Larry Finger    2013-08-21  411                       psta = 
rtw_get_stainfo_by_offset(pstapriv, chk_alive_list[i]);
9a7fe54dd Larry Finger    2013-08-21  412  
9a7fe54dd Larry Finger    2013-08-21  413                       if (psta->state 
& WIFI_SLEEP_STATE)
9a7fe54dd Larry Finger    2013-08-21  414                               ret = 
issue_nulldata(padapter, psta->hwaddr, 0, 1, 50);
9a7fe54dd Larry Finger    2013-08-21  415                       else
9a7fe54dd Larry Finger    2013-08-21  416                               ret = 
issue_nulldata(padapter, psta->hwaddr, 0, 3, 50);
9a7fe54dd Larry Finger    2013-08-21  417  
9a7fe54dd Larry Finger    2013-08-21  418                       
psta->keep_alive_trycnt++;
9a7fe54dd Larry Finger    2013-08-21  419                       if (ret == 
_SUCCESS) {
9a7fe54dd Larry Finger    2013-08-21  420                               
DBG_88E("asoc check, sta(%pM) is alive\n", (psta->hwaddr));
9a7fe54dd Larry Finger    2013-08-21  421                               
psta->expire_to = pstapriv->expire_to;
9a7fe54dd Larry Finger    2013-08-21  422                               
psta->keep_alive_trycnt = 0;
9a7fe54dd Larry Finger    2013-08-21  423                               
continue;
9a7fe54dd Larry Finger    2013-08-21  424                       } else if 
(psta->keep_alive_trycnt <= 3) {
9a7fe54dd Larry Finger    2013-08-21  425                               
DBG_88E("ack check for asoc expire, keep_alive_trycnt =%d\n", 
psta->keep_alive_trycnt);
9a7fe54dd Larry Finger    2013-08-21  426                               
psta->expire_to = 1;
9a7fe54dd Larry Finger    2013-08-21  427                               
continue;
9a7fe54dd Larry Finger    2013-08-21  428                       }
9a7fe54dd Larry Finger    2013-08-21  429  
9a7fe54dd Larry Finger    2013-08-21  430                       
psta->keep_alive_trycnt = 0;
9a7fe54dd Larry Finger    2013-08-21  431  
9a7fe54dd Larry Finger    2013-08-21  432                       DBG_88E("asoc 
expire %pM, state = 0x%x\n", (psta->hwaddr), psta->state);
7057dcb3a Larry Finger    2013-12-19  433                       
spin_lock_bh(&pstapriv->asoc_list_lock);
8d5bdece4 navin patidar   2014-06-22  434                       
list_del_init(&psta->asoc_list);
9a7fe54dd Larry Finger    2013-08-21  435                       
pstapriv->asoc_list_cnt--;
9a7fe54dd Larry Finger    2013-08-21  436                       updated = 
ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING);
e02bcf612 Larry Finger    2013-12-19  437                       
spin_unlock_bh(&pstapriv->asoc_list_lock);
9a7fe54dd Larry Finger    2013-08-21  438               }
9a7fe54dd Larry Finger    2013-08-21  439  
9a7fe54dd Larry Finger    2013-08-21  440               if (backup_oper_channel 
> 0) /* back to the original operation channel */
9a7fe54dd Larry Finger    2013-08-21  441                       
SelectChannel(padapter, backup_oper_channel);
9a7fe54dd Larry Finger    2013-08-21  442       }
9a7fe54dd Larry Finger    2013-08-21  443  
9a7fe54dd Larry Finger    2013-08-21  444       
associated_clients_update(padapter, updated);
9a7fe54dd Larry Finger    2013-08-21 @445  }
9a7fe54dd Larry Finger    2013-08-21  446  

:::::: The code at line 445 was first introduced by commit
:::::: 9a7fe54ddc3a70a25a773cb1e275cb7f7d2c6526 staging: r8188eu: Add source 
files for new driver - part 1

:::::: TO: Larry Finger <larry.fin...@lwfinger.net>
:::::: CC: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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