tree:   
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git 
for-next
head:   6c871f63986b34c7768080259ddf5991c55ee385
commit: 70978208ec91d798066f4c291bc98ff914bea222 [53/58] dm zoned: metadata 
version 2
config: nios2-allyesconfig (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
reproduce:
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 70978208ec91d798066f4c291bc98ff914bea222
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross 
ARCH=nios2 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <[email protected]>

All errors (new ones prefixed by >>, old ones prefixed by <<):

drivers/md/dm-zoned-metadata.c: In function 'dmz_write_sb':
>> drivers/md/dm-zoned-metadata.c:779:3: error: implicit declaration of 
>> function 'export_uuid' [-Werror=implicit-function-declaration]
779 |   export_uuid(sb->dmz_uuid, &zmd->uuid);
|   ^~~~~~~~~~~
drivers/md/dm-zoned-metadata.c: In function 'dmz_check_sb':
>> drivers/md/dm-zoned-metadata.c:1015:3: error: implicit declaration of 
>> function 'import_uuid' [-Werror=implicit-function-declaration]
1015 |   import_uuid(&sb_uuid, sb->dmz_uuid);
|   ^~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/export_uuid +779 drivers/md/dm-zoned-metadata.c

   761  
   762  /*
   763   * Write super block of the specified metadata set.
   764   */
   765  static int dmz_write_sb(struct dmz_metadata *zmd, unsigned int set)
   766  {
   767          struct dmz_mblock *mblk = zmd->sb[set].mblk;
   768          struct dmz_super *sb = zmd->sb[set].sb;
   769          struct dmz_dev *dev = zmd->sb[set].dev;
   770          sector_t sb_block;
   771          u64 sb_gen = zmd->sb_gen + 1;
   772          int ret;
   773  
   774          sb->magic = cpu_to_le32(DMZ_MAGIC);
   775  
   776          sb->version = cpu_to_le32(zmd->sb_version);
   777          if (zmd->sb_version > 1) {
   778                  BUILD_BUG_ON(UUID_SIZE != 16);
 > 779                  export_uuid(sb->dmz_uuid, &zmd->uuid);
   780                  memcpy(sb->dmz_label, zmd->label, BDEVNAME_SIZE);
   781                  export_uuid(sb->dev_uuid, &dev->uuid);
   782          }
   783  
   784          sb->gen = cpu_to_le64(sb_gen);
   785  
   786          /*
   787           * The metadata always references the absolute block address,
   788           * ie relative to the entire block range, not the per-device
   789           * block address.
   790           */
   791          sb_block = zmd->sb[set].zone->id << zmd->zone_nr_blocks_shift;
   792          sb->sb_block = cpu_to_le64(sb_block);
   793          sb->nr_meta_blocks = cpu_to_le32(zmd->nr_meta_blocks);
   794          sb->nr_reserved_seq = cpu_to_le32(zmd->nr_reserved_seq);
   795          sb->nr_chunks = cpu_to_le32(zmd->nr_chunks);
   796  
   797          sb->nr_map_blocks = cpu_to_le32(zmd->nr_map_blocks);
   798          sb->nr_bitmap_blocks = cpu_to_le32(zmd->nr_bitmap_blocks);
   799  
   800          sb->crc = 0;
   801          sb->crc = cpu_to_le32(crc32_le(sb_gen, (unsigned char *)sb, 
DMZ_BLOCK_SIZE));
   802  
   803          ret = dmz_rdwr_block(dev, REQ_OP_WRITE, zmd->sb[set].block,
   804                               mblk->page);
   805          if (ret == 0)
   806                  ret = blkdev_issue_flush(dev->bdev, GFP_NOIO, NULL);
   807  
   808          return ret;
   809  }
   810  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
Description: application/gzip

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