linux-kernel - [kdave-btrfs-devel:ext/sweettea/fscrypt-v3 45/46] fs/btrfs/verity.c:299:13: error: 'ciphertext

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Message-ID: <202210211628.OejOWfeI-lkp@intel.com>
Date:   Fri, 21 Oct 2022 16:23:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sweet Tea Dorminy <sweettea-kernel@...miny.me>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        David Sterba <dsterba@...e.com>
Subject: [kdave-btrfs-devel:ext/sweettea/fscrypt-v3 45/46]
 fs/btrfs/verity.c:299:13: error: 'ciphertext_page' undeclared

tree:   https://github.com/kdave/btrfs-devel.git ext/sweettea/fscrypt-v3
head:   4303e47e934b3af3940fbccf09515645b7084d78
commit: ffa77d855249656a98c19997ae6b771bdcfcfbda [45/46] btrfs: encrypt verity items
config: i386-randconfig-a005
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/kdave/btrfs-devel/commit/ffa77d855249656a98c19997ae6b771bdcfcfbda
        git remote add kdave-btrfs-devel https://github.com/kdave/btrfs-devel.git
        git fetch --no-tags kdave-btrfs-devel ext/sweettea/fscrypt-v3
        git checkout ffa77d855249656a98c19997ae6b771bdcfcfbda
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash fs/btrfs/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   fs/btrfs/verity.c: In function 'write_key_bytes':
>> fs/btrfs/verity.c:299:13: error: 'ciphertext_page' undeclared (first use in this function)
     299 |         if (ciphertext_page) {
         |             ^~~~~~~~~~~~~~~
   fs/btrfs/verity.c:299:13: note: each undeclared identifier is reported only once for each function it appears in
   In file included from <command-line>:
>> fs/btrfs/verity.c:300:30: error: 'ciphertext_buf' undeclared (first use in this function)
     300 |                 kunmap_local(ciphertext_buf);
         |                              ^~~~~~~~~~~~~~
   include/linux/compiler_types.h:337:23: note: in definition of macro '__compiletime_assert'
     337 |                 if (!(condition))                                       \
         |                       ^~~~~~~~~
   include/linux/compiler_types.h:357:9: note: in expansion of macro '_compiletime_assert'
     357 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   include/linux/highmem-internal.h:283:9: note: in expansion of macro 'BUILD_BUG_ON'
     283 |         BUILD_BUG_ON(__same_type((__addr), struct page *));     \
         |         ^~~~~~~~~~~~
   include/linux/highmem-internal.h:283:22: note: in expansion of macro '__same_type'
     283 |         BUILD_BUG_ON(__same_type((__addr), struct page *));     \
         |                      ^~~~~~~~~~~
   fs/btrfs/verity.c:300:17: note: in expansion of macro 'kunmap_local'
     300 |                 kunmap_local(ciphertext_buf);
         |                 ^~~~~~~~~~~~


vim +/ciphertext_page +299 fs/btrfs/verity.c

   267	
   268			/* 1 for the new item being inserted */
   269			trans = btrfs_start_transaction(root, 1);
   270			if (IS_ERR(trans)) {
   271				ret = PTR_ERR(trans);
   272				break;
   273			}
   274	
   275			key.objectid = btrfs_ino(inode);
   276			key.type = key_type;
   277			key.offset = offset;
   278	
   279			ret = btrfs_insert_empty_item(trans, root, path, &key, copy_bytes);
   280			if (ret) {
   281				btrfs_end_transaction(trans);
   282				break;
   283			}
   284	
   285			leaf = path->nodes[0];
   286	
   287			data_pos = btrfs_item_ptr(leaf, path->slots[0], void);
   288			write_extent_buffer(leaf, data,
   289					    (unsigned long)data_pos, copy_bytes);
   290			offset += copy_bytes;
   291			src_offset += copy_bytes;
   292			len -= min_t(u64, copy_bytes, len);
   293	
   294			btrfs_release_path(path);
   295			btrfs_end_transaction(trans);
   296		}
   297	
   298		btrfs_free_path(path);
 > 299		if (ciphertext_page) {
 > 300			kunmap_local(ciphertext_buf);
   301			__free_page(ciphertext_page);
   302		}
   303	
   304		return ret;
   305	}
   306	

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