Hi,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.7-rc3 next-20160617]
[if your patch is applied to the wrong git tree, please drop us a note to help 
improve the system]

url:    
https://github.com/0day-ci/linux/commits/Icenowy-Zheng/staging-esp8089-add-new-driver/20160619-182134
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from arch/x86/include/asm/string.h:2:0,
                    from include/linux/string.h:18,
                    from arch/x86/include/asm/page_32.h:34,
                    from arch/x86/include/asm/page.h:13,
                    from arch/x86/include/asm/thread_info.h:11,
                    from include/linux/thread_info.h:54,
                    from arch/x86/include/asm/preempt.h:6,
                    from include/linux/preempt.h:59,
                    from include/linux/spinlock.h:50,
                    from include/linux/mm_types.h:8,
                    from include/linux/kmemcheck.h:4,
                    from include/linux/skbuff.h:18,
                    from include/linux/if_ether.h:23,
                    from include/linux/etherdevice.h:25,
                    from drivers/staging/esp8089/esp_mac80211.c:7:
   drivers/staging/esp8089/esp_mac80211.c: In function 'beacon_tim_init':
>> arch/x86/include/asm/string_32.h:325:29: warning: 'memset' used with 
>> constant zero length parameter; this could be due to transposed parameters 
>> [-Wmemset-transposed-args]
    #define memset(s, c, count) __builtin_memset(s, c, count)
                                ^
>> drivers/staging/esp8089/esp_mac80211.c:325:2: note: in expansion of macro 
>> 'memset'
     memset(beacon_tim_saved, BEACON_TIM_SAVE_MAX, 0);
     ^~~~~~
   drivers/staging/esp8089/esp_mac80211.c: At top level:
   drivers/staging/esp8089/esp_mac80211.c:1377:18: error: initialization from 
incompatible pointer type [-Werror=incompatible-pointer-types]
     .ampdu_action = esp_op_ampdu_action,
                     ^~~~~~~~~~~~~~~~~~~
   drivers/staging/esp8089/esp_mac80211.c:1377:18: note: (near initialization 
for 'esp_mac80211_ops.ampdu_action')
   cc1: some warnings being treated as errors

vim +/memset +325 drivers/staging/esp8089/esp_mac80211.c

   309          }
   310          epub->vif = NULL;
   311          evif->epub = NULL;
   312  
   313          sip_cmd(epub, SIP_CMD_SETVIF, (u8 *) & svif,
   314                  sizeof(struct sip_cmd_setvif));
   315  
   316          /* clean up tx/rx queue */
   317  
   318  }
   319  
   320  #define BEACON_TIM_SAVE_MAX 20
   321  u8 beacon_tim_saved[BEACON_TIM_SAVE_MAX];
   322  int beacon_tim_count;
   323  static void beacon_tim_init(void)
   324  {
 > 325          memset(beacon_tim_saved, BEACON_TIM_SAVE_MAX, 0);
   326          beacon_tim_count = 0;
   327  }
   328  
   329  static u8 beacon_tim_save(u8 this_tim)
   330  {
   331          u8 all_tim = 0;
   332          int i;
   333          beacon_tim_saved[beacon_tim_count] = this_tim;

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

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