Hi Salah,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.5-rc6 next-20160303]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improving the system]

url:    
https://github.com/0day-ci/linux/commits/Salah-Triki/staging-rtl8192u-check-return-value-of-read_nic_word_E/20160304-093832
config: i386-allmodconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   drivers/staging/rtl8192u/r8192U_core.c: In function 
'rtl8192_read_eeprom_info':
>> drivers/staging/rtl8192u/r8192U_core.c:2496:8: warning: unused variable 
>> 'tmp' [-Wunused-variable]
       u16 tmp = 0;
           ^
   drivers/staging/rtl8192u/r8192U_core.c:2707:1: warning: control reaches end 
of non-void function [-Wreturn-type]
    }
    ^

vim +/tmp +2496 drivers/staging/rtl8192u/r8192U_core.c

8fc8598e Jerry Chuang     2009-11-03  2480              priv->eeprom_vid = 0;
8fc8598e Jerry Chuang     2009-11-03  2481              priv->eeprom_pid = 0;
8fc8598e Jerry Chuang     2009-11-03  2482              priv->card_8192_version 
= VERSION_819xU_B;
8fc8598e Jerry Chuang     2009-11-03  2483              
priv->eeprom_ChannelPlan = 0;
8fc8598e Jerry Chuang     2009-11-03  2484              priv->eeprom_CustomerID 
= 0;
8fc8598e Jerry Chuang     2009-11-03  2485      }
069b3162 Raphaël Beamonte 2015-09-20  2486      RT_TRACE(COMP_EPROM,
069b3162 Raphaël Beamonte 2015-09-20  2487               "vid:0x%4x, pid:0x%4x, 
CustomID:0x%2x, ChanPlan:0x%x\n",
069b3162 Raphaël Beamonte 2015-09-20  2488               priv->eeprom_vid, 
priv->eeprom_pid, priv->eeprom_CustomerID,
069b3162 Raphaël Beamonte 2015-09-20  2489               
priv->eeprom_ChannelPlan);
14285c1f Raphaël Beamonte 2015-08-18  2490      /* set channelplan from eeprom 
*/
8fc8598e Jerry Chuang     2009-11-03  2491      priv->ChannelPlan = 
priv->eeprom_ChannelPlan;
2716141c Xenia Ragiadakou 2013-06-03  2492      if (bLoad_From_EEPOM) {
8fc8598e Jerry Chuang     2009-11-03  2493              int i;
7b25c24e Raphaël Beamonte 2015-08-18  2494  
2716141c Xenia Ragiadakou 2013-06-03  2495              for (i = 0; i < 6; i += 
2) {
8fc8598e Jerry Chuang     2009-11-03 @2496                      u16 tmp = 0;
7b25c24e Raphaël Beamonte 2015-08-18  2497  
f32e9126 Salah Triki      2016-03-03  2498                      ret = 
eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1));
f32e9126 Salah Triki      2016-03-03  2499                      if (ret)
f32e9126 Salah Triki      2016-03-03  2500                              return 
ret;
f32e9126 Salah Triki      2016-03-03  2501                      *(u16 
*)(&dev->dev_addr[i]) = (u16) ret;
8fc8598e Jerry Chuang     2009-11-03  2502              }
2716141c Xenia Ragiadakou 2013-06-03  2503      } else {
8fc8598e Jerry Chuang     2009-11-03  2504              memcpy(dev->dev_addr, 
bMac_Tmp_Addr, 6);

:::::: The code at line 2496 was first introduced by commit
:::::: 8fc8598e61f6f384f3eaf1d9b09500c12af47b37 Staging: Added Realtek rtl8192u 
driver to staging

:::::: TO: Jerry Chuang <jerry-chu...@realtek.com>
:::::: CC: Greg Kroah-Hartman <gre...@suse.de>

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

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