fs/reiserfs/inode.o: warning: objtool: reiserfs_write_folio+0x394: unreachable instruction

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5ad7ff8738b8bd238ca899df08badb1f61bcc39e
commit: 4f8cf60ac18bee62e8c58654a300eb44b96caf09 reiserfs: Convert to writepages
date:   3 months ago
config: loongarch-randconfig-001-20240722 (https://download.01.org/0day-ci/archive/20240724/202407240856.rcNo0xl1-lkp@xxxxxxxxx/config)
compiler: loongarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240724/202407240856.rcNo0xl1-lkp@xxxxxxxxx/reproduce)

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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407240856.rcNo0xl1-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   fs/reiserfs/inode.o: warning: objtool: restart_transaction+0x38: unreachable instruction
   fs/reiserfs/inode.o: warning: objtool: reiserfs_write_begin+0x90: unreachable instruction
   fs/reiserfs/inode.o: warning: objtool: __reiserfs_write_begin+0x88: unreachable instruction
>> fs/reiserfs/inode.o: warning: objtool: reiserfs_write_folio+0x394: unreachable instruction
   fs/reiserfs/inode.o: warning: objtool: reiserfs_new_inode+0x8c: unreachable instruction


objdump-func vmlinux.o reiserfs_write_folio:

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0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki