Re: [PATCH v5] panic: add panic_force_cpu= parameter to redirect panic to a specific CPU

kernel test robot
2026-01-09T22:20:30Z

Hi Pnina,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master v6.19-rc4 next-20260109]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Pnina-Feder/panic-add-panic_force_cpu-parameter-to-redirect-panic-to-a-specific-CPU/20260109-043725
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20260108203612.955769-1-pnina.feder%40mobileye.com
patch subject: [PATCH v5] panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20260109/202601092335.DbBERt3l-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260109/202601092335.DbBERt3l-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/202601092335.DbBERt3l-lkp@intel.com/

All warnings (new ones prefixed by >>):

kernel/panic.c: In function 'do_panic_on_target_cpu':
>> kernel/panic.c:327:17: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'void *' [-Wformat=]
327 | panic("%s", info);
| ~^ ~~~~
| | |
| | void *
| char *
| %p

vim +327 kernel/panic.c

324
325 static void do_panic_on_target_cpu(void *info)
326 {
> 327 panic("%s", info);
328 }
329

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0-DAY CI Kernel Test Service