tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   5453a3df2a5eb49bc24615d4cf0d66b2aae05e5f
commit: 937b10c0de68c56512fb8cd484af3c0b356fc09e iwlwifi: mvm: add debug prints 
for FTM
date:   4 weeks ago
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 937b10c0de68c56512fb8cd484af3c0b356fc09e
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=mips 

All warnings (new ones prefixed by >>):

   In file included from arch/mips/include/asm/div64.h:12:0,
                    from include/linux/kernel.h:207,
                    from include/linux/skbuff.h:17,
                    from include/linux/if_ether.h:23,
                    from include/linux/etherdevice.h:25,
                    from 
drivers/net/wireless//intel/iwlwifi/mvm/ftm-initiator.c:62:
   drivers/net/wireless//intel/iwlwifi/mvm/ftm-initiator.c: In function 
'iwl_mvm_debug_range_resp':
   include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer 
types lacks a cast
     (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
                               ^
>> drivers/net/wireless//intel/iwlwifi/mvm/ftm-initiator.c:465:2: note: in 
>> expansion of macro 'do_div'
     do_div(rtt_avg, 6666);
     ^~~~~~

vim +/do_div +465 drivers/net/wireless//intel/iwlwifi/mvm/ftm-initiator.c

   459  
   460  static void iwl_mvm_debug_range_resp(struct iwl_mvm *mvm, u8 index,
   461                                       struct cfg80211_pmsr_result *res)
   462  {
   463          s64 rtt_avg = res->ftm.rtt_avg * 100;
   464  
 > 465          do_div(rtt_avg, 6666);
   466  
   467          IWL_DEBUG_INFO(mvm, "entry %d\n", index);
   468          IWL_DEBUG_INFO(mvm, "\tstatus: %d\n", res->status);
   469          IWL_DEBUG_INFO(mvm, "\tBSSID: %pM\n", res->addr);
   470          IWL_DEBUG_INFO(mvm, "\thost time: %llu\n", res->host_time);
   471          IWL_DEBUG_INFO(mvm, "\tburst index: %hhu\n", 
res->ftm.burst_index);
   472          IWL_DEBUG_INFO(mvm, "\tsuccess num: %u\n", 
res->ftm.num_ftmr_successes);
   473          IWL_DEBUG_INFO(mvm, "\trssi: %d\n", res->ftm.rssi_avg);
   474          IWL_DEBUG_INFO(mvm, "\trssi spread: %hhu\n", 
res->ftm.rssi_spread);
   475          IWL_DEBUG_INFO(mvm, "\trtt: %lld\n", res->ftm.rtt_avg);
   476          IWL_DEBUG_INFO(mvm, "\trtt var: %llu\n", res->ftm.rtt_variance);
   477          IWL_DEBUG_INFO(mvm, "\trtt spread: %llu\n", 
res->ftm.rtt_spread);
   478          IWL_DEBUG_INFO(mvm, "\tdistance: %lld\n", rtt_avg);
   479  }
   480  

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

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