fs/btrfs/lzo.o: warning: objtool: lzo_compress_folios+0xb0: unreachable instruction

[kernel test robot]

Hi Qu,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   66ebbdfdeb093e097399b1883390079cd4c3022b
commit: 400b172b8cdcff87038697169fe9e4222120dd9a btrfs: compression: migrate compression/decompression paths to folios
date:   3 months ago
config: loongarch-randconfig-001-20240722 (https://download.01.org/0day-ci/archive/20240723/202407232006.7Gelsbv4-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/20240723/202407232006.7Gelsbv4-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/202407232006.7Gelsbv4-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> fs/btrfs/lzo.o: warning: objtool: lzo_compress_folios+0xb0: unreachable instruction
   fs/btrfs/lzo.o: warning: objtool: lzo_decompress_bio+0x140: unreachable instruction


objdump-func vmlinux.o lzo_compress_folios:

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