linux-kernel - [ammarfaizi2-block:crng/random/jd/vmgenid 44/44] include/linux/kern_levels.h:5:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'phys_addr

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Message-ID: <202202231308.bUuKfhGx-lkp@intel.com>
Date:   Wed, 23 Feb 2022 14:01:13 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Jason A. Donenfeld" <zx2c4@...nel.org>
Cc:     kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:crng/random/jd/vmgenid 44/44]
 include/linux/kern_levels.h:5:18: warning: format '%llx' expects argument of
 type 'long long unsigned int', but argument 2 has type 'phys_addr_t' {aka
 'unsigned int'}

tree:   https://github.com/ammarfaizi2/linux-block crng/random/jd/vmgenid
head:   a3909de4c661c33b84a77a66395bb27d10abb1ff
commit: a3909de4c661c33b84a77a66395bb27d10abb1ff [44/44] drivers/virt: use VM generation ID to reseed RNG
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220223/202202231308.bUuKfhGx-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/ammarfaizi2/linux-block/commit/a3909de4c661c33b84a77a66395bb27d10abb1ff
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block crng/random/jd/vmgenid
        git checkout a3909de4c661c33b84a77a66395bb27d10abb1ff
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/virt/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/kernel.h:29,
                    from arch/x86/include/asm/percpu.h:27,
                    from arch/x86/include/asm/current.h:6,
                    from include/linux/mutex.h:14,
                    from include/linux/kernfs.h:11,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/of.h:17,
                    from include/linux/irqdomain.h:35,
                    from include/linux/acpi.h:13,
                    from drivers/virt/vmgenid.c:12:
   drivers/virt/vmgenid.c: In function 'vmgenid_acpi_map':
>> include/linux/kern_levels.h:5:18: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'phys_addr_t' {aka 'unsigned int'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/printk.h:418:11: note: in definition of macro 'printk_index_wrap'
     418 |   _p_func(_fmt, ##__VA_ARGS__);    \
         |           ^~~~
   include/linux/printk.h:489:2: note: in expansion of macro 'printk'
     489 |  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |  ^~~~~~
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
      11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
         |                  ^~~~~~~~
   include/linux/printk.h:489:9: note: in expansion of macro 'KERN_ERR'
     489 |  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~~~
   drivers/virt/vmgenid.c:53:3: note: in expansion of macro 'pr_err'
      53 |   pr_err("failed to map memory at 0x%llx, size %zu\n",
         |   ^~~~~~
   drivers/virt/vmgenid.c:53:40: note: format string is defined here
      53 |   pr_err("failed to map memory at 0x%llx, size %zu\n",
         |                                     ~~~^
         |                                        |
         |                                        long long unsigned int
         |                                     %x


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@...ches.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org