[agraf-2.6:kexec-cma 2/2] include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int'

[agraf-2.6:kexec-cma 2/2] include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int'

[kernel test robot]

tree:   https://github.com/agraf/linux-2.6.git kexec-cma
head:   752619bbe38c535612b1a9e5b47ea7d962c63449
commit: 752619bbe38c535612b1a9e5b47ea7d962c63449 [2/2] XXX
config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20250513/202505131907.gsHkoQ4z-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250513/202505131907.gsHkoQ4z-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/202505131907.gsHkoQ4z-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/asm-generic/bug.h:22,
                    from arch/x86/include/asm/bug.h:103,
                    from include/linux/bug.h:5,
                    from include/linux/mmdebug.h:5,
                    from include/linux/mm.h:6,
                    from kernel/kexec_file.c:13:
   kernel/kexec_file.c: In function 'kexec_alloc_contig':
>> include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long unsigned int' [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:479:25: note: in definition of macro 'printk_index_wrap'
     479 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:560:9: note: in expansion of macro 'printk'
     560 |         printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/kern_levels.h:12:25: note: in expansion of macro 'KERN_SOH'
      12 | #define KERN_WARNING    KERN_SOH "4"    /* warning conditions */
         |                         ^~~~~~~~
   include/linux/printk.h:560:16: note: in expansion of macro 'KERN_WARNING'
     560 |         printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
         |                ^~~~~~~~~~~~
   kernel/kexec_file.c:661:9: note: in expansion of macro 'pr_warn'
     661 |         pr_warn("Allocated %d pages DMA memory\n", kbuf->memsz >> PAGE_SHIFT);
         |         ^~~~~~~


vim +5 include/linux/kern_levels.h

314ba3520e513a Joe Perches 2012-07-30  4  
04d2c8c83d0e3a Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c83d0e3a Joe Perches 2012-07-30  7  

:::::: The code at line 5 was first introduced by commit
:::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern

:::::: TO: Joe Perches <joe@perches.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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