mm/slub.o: warning: objtool: ___slab_alloc.isra.111.part.112+0x4c0: can't find jump dest instruction at .text.___slab_alloc.isra.111.part.112+0x68c

mm/slub.o: warning: objtool: ___slab_alloc.isra.111.part.112+0x4c0: can't find jump dest instruction at .text.___slab_alloc.isra.111.part.112+0x68c

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d7b8f8e20813f0179d8ef519541a3527e7661d3a
commit: 4496e1c1354bd4837bcc1414f6e1a4d042857903 crash_dump, nvme: select CONFIGFS_FS as built-in
date:   6 weeks ago
config: powerpc-randconfig-r131-20250707 (https://download.01.org/0day-ci/archive/20250707/202507071557.SDU74U31-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
reproduce: (https://download.01.org/0day-ci/archive/20250707/202507071557.SDU74U31-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/oe-kbuild-all/202507071557.SDU74U31-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/slub.o: warning: objtool: ___slab_alloc.isra.111.part.112+0x4c0: can't find jump dest instruction at .text.___slab_alloc.isra.111.part.112+0x68c

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for HUGETLBFS
   Depends on [n]: (X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS [=y] || BROKEN [=n]) && (SYSFS [=n] || SYSCTL [=n])
   Selected by [y]:
   - PPC_8xx [=y] && PPC32 [=y]

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

Re: mm/slub.o: warning: objtool: ___slab_alloc.isra.111.part.112+0x4c0: can't find jump dest instruction at .text.___slab_alloc.isra.111.part.112+0x68c

[Arnd Bergmann]

On Mon, Jul 7, 2025, at 09:56, kernel test robot wrote:
> commit: 4496e1c1354bd4837bcc1414f6e1a4d042857903 crash_dump, nvme: 
> select CONFIGFS_FS as built-in
...
>>> mm/slub.o: warning: objtool: ___slab_alloc.isra.111.part.112+0x4c0: can't find jump dest instruction at .text.___slab_alloc.isra.111.part.112+0x68c
>
> Kconfig warnings: (for reference only)
>    WARNING: unmet direct dependencies detected for HUGETLBFS
>    Depends on [n]: (X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS [=y] || 
> BROKEN [=n]) && (SYSFS [=n] || SYSCTL [=n])
>    Selected by [y]:
>    - PPC_8xx [=y] && PPC32 [=y]
>

This is an existing bug on PPC_8xx that got exposed by my patch
but could already be triggered in randconfig builds without
CONFIG_SYSFS.

      Arnd