tree:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git 
staging-next
head:   7c6444d8e0f1be30e7fd910e40c0d495c36e6935
commit: db67ebf6b49cd6909f210ee44eb51d3cf2e39ae4 [55/83] staging: r8188eu: 
remove DBG_88E calls from hal subdir
config: arm64-allyesconfig 
(https://download.01.org/0day-ci/archive/20220223/202202230620.bkxzonuy-...@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 
d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # 
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git/commit/?id=db67ebf6b49cd6909f210ee44eb51d3cf2e39ae4
        git remote add staging 
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
        git fetch --no-tags staging staging-next
        git checkout db67ebf6b49cd6909f210ee44eb51d3cf2e39ae4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 
O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/pinctrl/ drivers/remoteproc/ 
drivers/staging/r8188eu/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/staging/r8188eu/hal/usb_halinit.c:1541:6: warning: variable 'arg' 
>> set but not used [-Wunused-but-set-variable]
                   u8 arg;
                      ^
   1 warning generated.


vim +/arg +1541 drivers/staging/r8188eu/hal/usb_halinit.c

8cd574e6af5463a Phillip Potter  2021-07-28  1485  
b561d2f0dc01ab0 Michael Straube 2021-09-06  1486  void 
UpdateHalRAMask8188EUsb(struct adapter *adapt, u32 mac_id, u8 rssi_level)
8cd574e6af5463a Phillip Potter  2021-07-28  1487  {
8cd574e6af5463a Phillip Potter  2021-07-28  1488        u8 init_rate = 0;
8cd574e6af5463a Phillip Potter  2021-07-28  1489        u8 networkType, raid;
8cd574e6af5463a Phillip Potter  2021-07-28  1490        u32 mask, rate_bitmap;
8cd574e6af5463a Phillip Potter  2021-07-28  1491        u8 shortGIrate = false;
8cd574e6af5463a Phillip Potter  2021-07-28  1492        int     supportRateNum 
= 0;
8cd574e6af5463a Phillip Potter  2021-07-28  1493        struct sta_info *psta;
d904512db6f3727 Michael Straube 2021-12-07  1494        struct hal_data_8188e 
*haldata = &adapt->haldata;
8cd574e6af5463a Phillip Potter  2021-07-28  1495        struct mlme_ext_priv    
*pmlmeext = &adapt->mlmeextpriv;
6839ff57baa4a60 Michael Straube 2021-08-09  1496        struct mlme_ext_info    
*pmlmeinfo = &pmlmeext->mlmext_info;
6839ff57baa4a60 Michael Straube 2021-08-09  1497        struct wlan_bssid_ex    
*cur_network = &pmlmeinfo->network;
8cd574e6af5463a Phillip Potter  2021-07-28  1498  
8cd574e6af5463a Phillip Potter  2021-07-28  1499        if (mac_id >= NUM_STA) 
/* CAM_SIZE */
8cd574e6af5463a Phillip Potter  2021-07-28  1500                return;
8cd574e6af5463a Phillip Potter  2021-07-28  1501        psta = 
pmlmeinfo->FW_sta_info[mac_id].psta;
725a3f1c4d56b73 Michael Straube 2021-08-01  1502        if (!psta)
8cd574e6af5463a Phillip Potter  2021-07-28  1503                return;
8cd574e6af5463a Phillip Potter  2021-07-28  1504        switch (mac_id) {
8cd574e6af5463a Phillip Potter  2021-07-28  1505        case 0:/*  for infra 
mode */
8cd574e6af5463a Phillip Potter  2021-07-28  1506                supportRateNum 
= rtw_get_rateset_len(cur_network->SupportedRates);
8cd574e6af5463a Phillip Potter  2021-07-28  1507                networkType = 
judge_network_type(adapt, cur_network->SupportedRates, supportRateNum) & 0xf;
8cd574e6af5463a Phillip Potter  2021-07-28  1508                raid = 
networktype_to_raid(networkType);
8cd574e6af5463a Phillip Potter  2021-07-28  1509                mask = 
update_supported_rate(cur_network->SupportedRates, supportRateNum);
6839ff57baa4a60 Michael Straube 2021-08-09  1510                mask |= 
(pmlmeinfo->HT_enable) ? update_MSC_rate(&pmlmeinfo->HT_caps) : 0;
6839ff57baa4a60 Michael Straube 2021-08-09  1511                if 
(support_short_GI(adapt, &pmlmeinfo->HT_caps))
8cd574e6af5463a Phillip Potter  2021-07-28  1512                        
shortGIrate = true;
8cd574e6af5463a Phillip Potter  2021-07-28  1513                break;
8cd574e6af5463a Phillip Potter  2021-07-28  1514        case 1:/* for 
broadcast/multicast */
8cd574e6af5463a Phillip Potter  2021-07-28  1515                supportRateNum 
= rtw_get_rateset_len(pmlmeinfo->FW_sta_info[mac_id].SupportedRates);
8cd574e6af5463a Phillip Potter  2021-07-28  1516                if 
(pmlmeext->cur_wireless_mode & WIRELESS_11B)
8cd574e6af5463a Phillip Potter  2021-07-28  1517                        
networkType = WIRELESS_11B;
8cd574e6af5463a Phillip Potter  2021-07-28  1518                else
8cd574e6af5463a Phillip Potter  2021-07-28  1519                        
networkType = WIRELESS_11G;
8cd574e6af5463a Phillip Potter  2021-07-28  1520                raid = 
networktype_to_raid(networkType);
8cd574e6af5463a Phillip Potter  2021-07-28  1521                mask = 
update_basic_rate(cur_network->SupportedRates, supportRateNum);
8cd574e6af5463a Phillip Potter  2021-07-28  1522                break;
8cd574e6af5463a Phillip Potter  2021-07-28  1523        default: /* for each 
sta in IBSS */
8cd574e6af5463a Phillip Potter  2021-07-28  1524                supportRateNum 
= rtw_get_rateset_len(pmlmeinfo->FW_sta_info[mac_id].SupportedRates);
8cd574e6af5463a Phillip Potter  2021-07-28  1525                networkType = 
judge_network_type(adapt, pmlmeinfo->FW_sta_info[mac_id].SupportedRates, 
supportRateNum) & 0xf;
8cd574e6af5463a Phillip Potter  2021-07-28  1526                raid = 
networktype_to_raid(networkType);
8cd574e6af5463a Phillip Potter  2021-07-28  1527                mask = 
update_supported_rate(cur_network->SupportedRates, supportRateNum);
8cd574e6af5463a Phillip Potter  2021-07-28  1528  
8cd574e6af5463a Phillip Potter  2021-07-28  1529                /* todo: 
support HT in IBSS */
8cd574e6af5463a Phillip Potter  2021-07-28  1530                break;
8cd574e6af5463a Phillip Potter  2021-07-28  1531        }
8cd574e6af5463a Phillip Potter  2021-07-28  1532  
8cd574e6af5463a Phillip Potter  2021-07-28  1533        rate_bitmap = 
0x0fffffff;
8cd574e6af5463a Phillip Potter  2021-07-28  1534        rate_bitmap = 
ODM_Get_Rate_Bitmap(&haldata->odmpriv, mac_id, mask, rssi_level);
8cd574e6af5463a Phillip Potter  2021-07-28  1535  
8cd574e6af5463a Phillip Potter  2021-07-28  1536        mask &= rate_bitmap;
8cd574e6af5463a Phillip Potter  2021-07-28  1537  
8cd574e6af5463a Phillip Potter  2021-07-28  1538        init_rate = 
get_highest_rate_idx(mask) & 0x3f;
8cd574e6af5463a Phillip Potter  2021-07-28  1539  
8cd574e6af5463a Phillip Potter  2021-07-28  1540        if (haldata->fw_ractrl) 
{
8cd574e6af5463a Phillip Potter  2021-07-28 @1541                u8 arg;
8cd574e6af5463a Phillip Potter  2021-07-28  1542  
8cd574e6af5463a Phillip Potter  2021-07-28  1543                arg = mac_id & 
0x1f;/* MACID */
8cd574e6af5463a Phillip Potter  2021-07-28  1544                arg |= BIT(7);
8cd574e6af5463a Phillip Potter  2021-07-28  1545                if (shortGIrate)
8cd574e6af5463a Phillip Potter  2021-07-28  1546                        arg |= 
BIT(5);
8cd574e6af5463a Phillip Potter  2021-07-28  1547                mask |= ((raid 
<< 28) & 0xf0000000);
8cd574e6af5463a Phillip Potter  2021-07-28  1548                psta->ra_mask = 
mask;
8cd574e6af5463a Phillip Potter  2021-07-28  1549                mask |= ((raid 
<< 28) & 0xf0000000);
8cd574e6af5463a Phillip Potter  2021-07-28  1550  
8cd574e6af5463a Phillip Potter  2021-07-28  1551                /* to do ,for 
8188E-SMIC */
8cd574e6af5463a Phillip Potter  2021-07-28  1552                
rtl8188e_set_raid_cmd(adapt, mask);
8cd574e6af5463a Phillip Potter  2021-07-28  1553        } else {
6839ff57baa4a60 Michael Straube 2021-08-09  1554                
ODM_RA_UpdateRateInfo_8188E(&haldata->odmpriv,
8cd574e6af5463a Phillip Potter  2021-07-28  1555                                
mac_id,
8cd574e6af5463a Phillip Potter  2021-07-28  1556                                
raid,
8cd574e6af5463a Phillip Potter  2021-07-28  1557                                
mask,
8cd574e6af5463a Phillip Potter  2021-07-28  1558                                
shortGIrate
8cd574e6af5463a Phillip Potter  2021-07-28  1559                                
);
8cd574e6af5463a Phillip Potter  2021-07-28  1560        }
8cd574e6af5463a Phillip Potter  2021-07-28  1561        /* set ra_id */
8cd574e6af5463a Phillip Potter  2021-07-28  1562        psta->raid = raid;
8cd574e6af5463a Phillip Potter  2021-07-28  1563        psta->init_rate = 
init_rate;
8cd574e6af5463a Phillip Potter  2021-07-28  1564  }
8cd574e6af5463a Phillip Potter  2021-07-28  1565  

:::::: The code at line 1541 was first introduced by commit
:::::: 8cd574e6af5463af7d693d111c61212e52c44810 staging: r8188eu: introduce new 
hal dir for RTL8188eu driver

:::::: TO: Phillip Potter <p...@philpotter.co.uk>
:::::: CC: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
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