tree: https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git dev head: 2d3893d5b67f8ee259cf86b2493dc25b4fbf7423 commit: 2d3893d5b67f8ee259cf86b2493dc25b4fbf7423 [7/7] f2fs: extent cache: support unaligned extent config: x86_64-randconfig-c001-20210727 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c658b472f3e61e1818e1909bf02f3d65470018a5) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?id=2d3893d5b67f8ee259cf86b2493dc25b4fbf7423 git remote add chao-linux https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git git fetch --no-tags chao-linux dev git checkout 2d3893d5b67f8ee259cf86b2493dc25b4fbf7423 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from fs/f2fs/dir.c:13: >> fs/f2fs/f2fs.h:4027:13: warning: declaration of 'struct extent_info_unaligned' will not be visible outside of this function [-Wvisibility] struct extent_info_unaligned *eiu); ^ 1 warning generated. -- In file included from fs/f2fs/extent_cache.c:14: >> fs/f2fs/f2fs.h:4027:13: warning: declaration of 'struct extent_info_unaligned' will not be visible outside of this function [-Wvisibility] struct extent_info_unaligned *eiu); ^ fs/f2fs/extent_cache.c:690:31: error: variable has incomplete type 'struct extent_info_unaligned' struct extent_info_unaligned eiu; ^ fs/f2fs/extent_cache.c:690:9: note: forward declaration of 'struct extent_info_unaligned' struct extent_info_unaligned eiu; ^ 1 warning and 1 error generated. vim +4027 fs/f2fs/f2fs.h 3995 3996 /* 3997 * extent_cache.c 3998 */ 3999 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 4000 struct rb_entry *cached_re, unsigned int ofs); 4001 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi, 4002 struct rb_root_cached *root, 4003 struct rb_node **parent, 4004 unsigned long long key, bool *left_most); 4005 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 4006 struct rb_root_cached *root, 4007 struct rb_node **parent, 4008 unsigned int ofs, bool *leftmost); 4009 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 4010 struct rb_entry *cached_re, unsigned int ofs, 4011 struct rb_entry **prev_entry, struct rb_entry **next_entry, 4012 struct rb_node ***insert_p, struct rb_node **insert_parent, 4013 bool force, bool *leftmost); 4014 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 4015 struct rb_root_cached *root, bool check_key); 4016 void f2fs_update_extent_tree_range_unaligned(struct inode *inode, 4017 pgoff_t fofs, block_t blkaddr, unsigned int llen, 4018 unsigned int plen); 4019 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 4020 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage); 4021 void f2fs_drop_extent_tree(struct inode *inode); 4022 unsigned int f2fs_destroy_extent_node(struct inode *inode); 4023 void f2fs_destroy_extent_tree(struct inode *inode); 4024 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 4025 struct extent_info *ei); 4026 bool f2fs_lookup_extent_cache_unaligned(struct inode *inode, pgoff_t pgofs, > 4027 struct extent_info_unaligned *eiu); 4028 void f2fs_update_extent_cache(struct dnode_of_data *dn); 4029 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 4030 pgoff_t fofs, block_t blkaddr, unsigned int len); 4031 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 4032 int __init f2fs_create_extent_cache(void); 4033 void f2fs_destroy_extent_cache(void); 4034 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org