[linux-next:master 8457/10491] fs/btrfs/zlib.o: warning: objtool: zlib_compress_folios+0x3f4: unreachable instruction

[linux-next:master 8457/10491] fs/btrfs/zlib.o: warning: objtool: zlib_compress_folios+0x3f4: unreachable instruction

[kernel test robot]

:::::: 
:::::: Manual check reason: "loongarch: unreachable instruction"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Qu Wenruo <wqu@suse.com>
CC: David Sterba <dsterba@suse.com>
CC: Filipe Manana <fdmanana@suse.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   edef457004774e598fc4c1b7d1d4f0bcd9d0bb30
commit: f53acf47c96ea478c135da683d53c94ba2ed50a8 [8457/10491] btrfs: prepare compression paths for large data folios
:::::: branch date: 20 hours ago
:::::: commit date: 6 days ago
config: loongarch-randconfig-001-20250512 (https://download.01.org/0day-ci/archive/20250513/202505131445.aR5q2CT6-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 13.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250513/202505131445.aR5q2CT6-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/r/202505131445.aR5q2CT6-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/btrfs/zlib.o: warning: objtool: zlib_compress_folios+0x3f4: unreachable instruction
--
>> fs/btrfs/zstd.o: warning: objtool: btrfs_calc_input_length+0x80: unreachable instruction

-- 
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https://github.com/intel/lkp-tests/wiki