Re: [PATCH] kexec: allow KEXEC_HANDOVER to build with COMPILE_TEST

kernel test robot
2026-02-05T02:06:53Z

Hi Sasha,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.19-rc8 next-20260204]
[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/Sasha-Levin/kexec-allow-KEXEC_HANDOVER-to-build-with-COMPILE_TEST/20260205-023202
base: linus/master
patch link: https://lore.kernel.org/r/20260204182816.2463931-1-sashal%40kernel.org
patch subject: [PATCH] kexec: allow KEXEC_HANDOVER to build with COMPILE_TEST
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20260205/202602051021.dhUjHKwO-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260205/202602051021.dhUjHKwO-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/202602051021.dhUjHKwO-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

>> mm/memfd_luo.c:316:10: warning: format specifies type 'unsigned long long' but the argument has type 'phys_addr_t' (aka 'unsigned int') [-Wformat]
315 | pr_warn_ratelimited("Unable to restore folio at physical address: %llx\n",
| ~~~~
| %x
316 | phys);
| ^~~~
include/linux/printk.h:722:49: note: expanded from macro 'pr_warn_ratelimited'
722 | printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:706:17: note: expanded from macro 'printk_ratelimited'
706 | printk(fmt, ##__VA_ARGS__); \
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:512:60: note: expanded from macro 'printk'
512 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:484:19: note: expanded from macro 'printk_index_wrap'
484 | _p_func(_fmt, ##__VA_ARGS__); \
| ~~~~ ^~~~~~~~~~~
mm/memfd_luo.c:372:11: warning: format specifies type 'unsigned long long' but the argument has type 'phys_addr_t' (aka 'unsigned int') [-Wformat]
371 | pr_err("Unable to restore folio at physical address: %llx\n",
| ~~~~
| %x
372 | phys);
| ^~~~
include/linux/printk.h:555:33: note: expanded from macro 'pr_err'
555 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:512:60: note: expanded from macro 'printk'
512 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:484:19: note: expanded from macro 'printk_index_wrap'
484 | _p_func(_fmt, ##__VA_ARGS__); \
| ~~~~ ^~~~~~~~~~~
2 warnings generated.
--
>> kernel/liveupdate/kexec_handover.c:25:10: fatal error: 'asm/early_ioremap.h' file not found
25 | #include <asm/early_ioremap.h>
| ^~~~~~~~~~~~~~~~~~~~~
1 error generated.
--
>> kernel/liveupdate/kexec_handover_debugfs.c:99:29: warning: format specifies type 'unsigned long long' but the argument has type 'phys_addr_t' (aka 'unsigned int') [-Wformat]
99 | seq_printf(m, "0x%llx\n", kho_scratch[i].addr);
| ~~~~ ^~~~~~~~~~~~~~~~~~~
| %x
kernel/liveupdate/kexec_handover_debugfs.c:108:29: warning: format specifies type 'unsigned long long' but the argument has type 'phys_addr_t' (aka 'unsigned int') [-Wformat]
108 | seq_printf(m, "0x%llx\n", kho_scratch[i].size);
| ~~~~ ^~~~~~~~~~~~~~~~~~~
| %x
2 warnings generated.

vim +25 kernel/liveupdate/kexec_handover.c

c609c144b0e8db kernel/kexec_handover.c Alexander Graf 2025-05-09 24
c609c144b0e8db kernel/kexec_handover.c Alexander Graf 2025-05-09 @25 #include <asm/early_ioremap.h>
c609c144b0e8db kernel/kexec_handover.c Alexander Graf 2025-05-09 26

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