fs/crypto/crypto.c:360:6: error: dereferencing pointer to incomplete type

fs/crypto/crypto.c:360:6: error: dereferencing pointer to incomplete type

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7ce7d89f48834cefece7804d38fc5d85382edf77
commit: d475a507457b5cafa428871a473d0dcc828c5f68 ubifs: Add skeleton for fscrypto
date:   13 days ago
config: x86_64-randconfig-n0-12260905 (attached as .config)
compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
reproduce:
        git checkout d475a507457b5cafa428871a473d0dcc828c5f68
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   fs/crypto/crypto.c: In function 'fscrypt_zeroout_range':
   fs/crypto/crypto.c:355:3: error: implicit declaration of function 'bio_alloc' [-Werror=implicit-function-declaration]
      bio = bio_alloc(GFP_NOWAIT, 1);
      ^
   fs/crypto/crypto.c:355:7: warning: assignment makes pointer from integer without a cast [enabled by default]
      bio = bio_alloc(GFP_NOWAIT, 1);
          ^
>> fs/crypto/crypto.c:360:6: error: dereferencing pointer to incomplete type
      bio->bi_bdev = inode->i_sb->s_bdev;
         ^
   fs/crypto/crypto.c:361:6: error: dereferencing pointer to incomplete type
      bio->bi_iter.bi_sector =
         ^
   fs/crypto/crypto.c:363:3: error: implicit declaration of function 'bio_set_op_attrs' [-Werror=implicit-function-declaration]
      bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
      ^
   fs/crypto/crypto.c:364:3: error: implicit declaration of function 'bio_add_page' [-Werror=implicit-function-declaration]
      ret = bio_add_page(bio, ciphertext_page,
      ^
   fs/crypto/crypto.c:369:4: error: implicit declaration of function 'bio_put' [-Werror=implicit-function-declaration]
       bio_put(bio);
       ^
   fs/crypto/crypto.c:373:3: error: implicit declaration of function 'submit_bio_wait' [-Werror=implicit-function-declaration]
      err = submit_bio_wait(bio);
      ^
   fs/crypto/crypto.c:374:24: error: dereferencing pointer to incomplete type
      if ((err == 0) && bio->bi_error)
                           ^
   fs/crypto/crypto.c: In function 'completion_pages':
   fs/crypto/crypto.c:457:2: error: implicit declaration of function 'bio_for_each_segment_all' [-Werror=implicit-function-declaration]
     bio_for_each_segment_all(bv, bio, i) {
     ^
   fs/crypto/crypto.c:457:39: error: expected ';' before '{' token
     bio_for_each_segment_all(bv, bio, i) {
                                          ^
   cc1: some warnings being treated as errors

vim +360 fs/crypto/crypto.c

0b81d077 Jaegeuk Kim   2015-05-15  349  		err = do_page_crypto(inode, FS_ENCRYPT, lblk,
b32e4482 Jaegeuk Kim   2016-04-11  350  					ZERO_PAGE(0), ciphertext_page,
7821d4dd David Gstir   2016-11-13  351  					PAGE_SIZE, 0, GFP_NOFS);
0b81d077 Jaegeuk Kim   2015-05-15  352  		if (err)
0b81d077 Jaegeuk Kim   2015-05-15  353  			goto errout;
0b81d077 Jaegeuk Kim   2015-05-15  354  
b32e4482 Jaegeuk Kim   2016-04-11 @355  		bio = bio_alloc(GFP_NOWAIT, 1);
0b81d077 Jaegeuk Kim   2015-05-15  356  		if (!bio) {
0b81d077 Jaegeuk Kim   2015-05-15  357  			err = -ENOMEM;
0b81d077 Jaegeuk Kim   2015-05-15  358  			goto errout;
0b81d077 Jaegeuk Kim   2015-05-15  359  		}
0b81d077 Jaegeuk Kim   2015-05-15 @360  		bio->bi_bdev = inode->i_sb->s_bdev;
0b81d077 Jaegeuk Kim   2015-05-15  361  		bio->bi_iter.bi_sector =
0b81d077 Jaegeuk Kim   2015-05-15  362  			pblk << (inode->i_sb->s_blocksize_bits - 9);
95fe6c1a Mike Christie 2016-06-05  363  		bio_set_op_attrs(bio, REQ_OP_WRITE, 0);

:::::: The code at line 360 was first introduced by commit
:::::: 0b81d0779072696371822e5ed9e7c6292e547024 fs crypto: move per-file encryption from f2fs tree to fs/crypto

:::::: TO: Jaegeuk Kim <jaegeuk@kernel.org>
:::::: CC: Jaegeuk Kim <jaegeuk@kernel.org>

---
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