Thanks for the report!

Add Powerpc list.

On Fri, Jul 10, 2026 at 06:18:50AM +0800, kernel test robot wrote:

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0e35b9b6ec0ffcc5e23cbdec09f5c622ad532b53
commit: d5cae2261b86913e602452ce4a07e6aefc0f603b dma-contiguous: simplify numa cma area handling
date:   6 weeks ago
config: powerpc-randconfig-r133-20260709 (https://download.01.org/0day-ci/archive/20260710/202607100652.WPUlEAfx-lkp@intel.com/config)
compiler: clang version 21.1.8 (https://github.com/llvm/llvm-project 2078da43e25a4623cab2d0d60decddf709aaea28)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260710/202607100652.WPUlEAfx-lkp@intel.com/reproduce)

All errors (new ones prefixed by >>):

quoted

quoted

ld.lld: error: relocation R_PPC_ADDR16_LO cannot be used against symbol 'init_task'; recompile with -fPIC

   >>> defined in vmlinux.a(init/init_task.o)
   >>> referenced by head_44x.S:101 (arch/powerpc/kernel/head_44x.S:101)
   >>>               arch/powerpc/kernel/head_44x.o:(.head.text+0x42) in archive vmlinux.a
--

quoted

quoted

ld.lld: error: relocation R_PPC_ADDR16_HI cannot be used against symbol 'init_thread_union'; recompile with -fPIC

   >>> defined in ./arch/powerpc/kernel/vmlinux.lds:133
   >>> referenced by head_44x.S:108 (arch/powerpc/kernel/head_44x.S:108)
   >>>               arch/powerpc/kernel/head_44x.o:(.head.text+0x4e) in archive vmlinux.a

I checked the patch and couldn't find obvious clue between the patch and
the error.

commit d5cae2261b8691 only changes kernel/dma/contiguous.c, which is under
CONFIG_DMA_CMA per kernel/dma/Makefile. In your config above, CONFIG_DMA_CMA
is not even set, so the contigous.c should not be compiled. Could you help
to double check? thanks!

- Feng

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for HOTPLUG_CPU
   Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
   Selected by [y]:
   - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]

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