Hi Rasmus,

[auto build test WARNING on: v4.4-rc2]
[also build test WARNING on: next-20151127]

url:    
https://github.com/0day-ci/linux/commits/Rasmus-Villemoes/btrfs-use-kbasename-in-btrfsic_mount/20151127-161249
config: i386-randconfig-s1-201547 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   fs/btrfs/check-integrity.c: In function 'btrfsic_mount':
>> fs/btrfs/check-integrity.c:3140:5: warning: assignment discards 'const' 
>> qualifier from pointer target type [-Wdiscarded-qualifiers]
      p = kbasename(ds->name);
        ^

vim +/const +3140 fs/btrfs/check-integrity.c

  3124                  char *p;
  3125  
  3126                  if (!device->bdev || !device->name)
  3127                          continue;
  3128  
  3129                  ds = btrfsic_dev_state_alloc();
  3130                  if (NULL == ds) {
  3131                          printk(KERN_INFO
  3132                                 "btrfs check-integrity: kmalloc() 
failed!\n");
  3133                          mutex_unlock(&btrfsic_mutex);
  3134                          return -1;
  3135                  }
  3136                  ds->bdev = device->bdev;
  3137                  ds->state = state;
  3138                  bdevname(ds->bdev, ds->name);
  3139                  ds->name[BDEVNAME_SIZE - 1] = '\0';
> 3140                  p = kbasename(ds->name);
  3141                  strlcpy(ds->name, p, sizeof(ds->name));
  3142                  btrfsic_dev_state_hashtable_add(ds,
  3143                                                  
&btrfsic_dev_state_hashtable);
  3144          }
  3145  
  3146          ret = btrfsic_process_superblock(state, fs_devices);
  3147          if (0 != ret) {
  3148                  mutex_unlock(&btrfsic_mutex);

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

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