Re: [PATCH v4 2/2] arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel

On Thu, Feb 12, 2026 at 06:35:52AM +0800, kernel test robot wrote:

Hi Coiby,

kernel test robot noticed the following build errors:

[auto build test ERROR on 2619c62b7ef2f463bcbbb34af122689c09855c23]

url:    https://github.com/intel-lab-lkp/linux/commits/Coiby-Xu/crash_dump-dm-crypt-Don-t-print-in-arch-specific-code/20260211-162729
base:   2619c62b7ef2f463bcbbb34af122689c09855c23
patch link:    https://lore.kernel.org/r/20260211082401.2407853-3-coxu%40redhat.com
patch subject: [PATCH v4 2/2] arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel
config: powerpc64-randconfig-r111-20260212 (https://download.01.org/0day-ci/archive/20260212/202602120648.RgQALnnI-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260212/202602120648.RgQALnnI-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 [off-list ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202602120648.RgQALnnI-lkp@intel.com/ (local)

All errors (new ones prefixed by >>):

  arch/powerpc/kexec/elf_64.c: In function 'elf64_load':

quoted

quoted

arch/powerpc/kexec/elf_64.c:82:23: error: implicit declaration of function 'crash_load_dm_crypt_keys' [-Werror=implicit-function-declaration]

     82 |                 ret = crash_load_dm_crypt_keys(image);
        |                       ^~~~~~~~~~~~~~~~~~~~~~~~
  cc1: some warnings being treated as errors

Thanks for reporting this issue. I'll fix this issue in new patch set.

-- 
Best regards,
Coiby