Hi Nikolay,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head: cbbc4774e41c354f5b0f9fc7a9be442fcee74b3f
commit: c5bcfc0da15495ae5441f91a2572559e7e44142c [8969/23560] btrfs: Remove extent_io_ops::fill_delalloc
config: x86_64-buildonly-randconfig-004-20240825 (https://download.01.org/0day-ci/archive/20240827/202408270310.2w8xfOVc-lkp@…)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240827/202408270310.2w8xfOVc-lkp@…)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp(a)intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408270310.2w8xfOVc-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from fs/btrfs/inode.c:8:
In file included from include/linux/buffer_head.h:14:
include/linux/pagemap.h:401:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict]
401 | filler_t *filler = (filler_t *)mapping->a_ops->readpage;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/btrfs/inode.c:2776:16: warning: variable 'inode' set but not used [-Wunused-but-set-variable]
2776 | struct inode *inode;
| ^
fs/btrfs/inode.c:6727:6: warning: variable 'drop_on_err' set but not used [-Wunused-but-set-variable]
6727 | int drop_on_err = 0;
| ^
3 warnings generated.
>> fs/btrfs/.tmp_inode.o: warning: objtool: run_delalloc_nocow()+0x62c: unreachable instruction
--
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