linux-kernel - [bvanassche:scsi-gap-zone 10/10] include/linux/kern_levels.h:5:25: warning: format '%u' expects argument of type 'unsigned int', but argument 3 has type 'sector

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Message-ID: <202204200933.JyliDZWf-lkp@intel.com>
Date:   Wed, 20 Apr 2022 09:32:03 +0800
From:   kernel test robot <lkp@...el.com>
To:     Bart Van Assche <bvanassche@....org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [bvanassche:scsi-gap-zone 10/10] include/linux/kern_levels.h:5:25:
 warning: format '%u' expects argument of type 'unsigned int', but argument 3
 has type 'sector_t' {aka 'long long unsigned int'}

tree:   https://github.com/bvanassche/linux scsi-gap-zone
head:   8a37a38282a57095a4a3ff6e6c68f2481234ad10
commit: 8a37a38282a57095a4a3ff6e6c68f2481234ad10 [10/10] scsi-debug-dbg
config: arc-randconfig-r032-20220419 (https://download.01.org/0day-ci/archive/20220420/202204200933.JyliDZWf-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/bvanassche/linux/commit/8a37a38282a57095a4a3ff6e6c68f2481234ad10
        git remote add bvanassche https://github.com/bvanassche/linux
        git fetch --no-tags bvanassche scsi-gap-zone
        git checkout 8a37a38282a57095a4a3ff6e6c68f2481234ad10
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/scsi/

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 include/linux/cpumask.h:10,
                    from include/linux/mm_types_task.h:14,
                    from include/linux/mm_types.h:5,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from drivers/scsi/scsi_debug.c:18:
   drivers/scsi/scsi_debug.c: In function 'sdebug_device_create_zones':
>> include/linux/kern_levels.h:5:25: warning: format '%u' expects argument of type 'unsigned int', but argument 3 has type 'sector_t' {aka 'long long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:418:25: note: in definition of macro 'printk_index_wrap'
     418 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:519:9: note: in expansion of macro 'printk'
     519 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/kern_levels.h:14:25: note: in expansion of macro 'KERN_SOH'
      14 | #define KERN_INFO       KERN_SOH "6"    /* informational */
         |                         ^~~~~~~~
   include/linux/printk.h:519:16: note: in expansion of macro 'KERN_INFO'
     519 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |                ^~~~~~~~~
   drivers/scsi/scsi_debug.c:5100:25: note: in expansion of macro 'pr_info'
    5100 |                         pr_info("adding a gap zone; start %u; size %u\n",
         |                         ^~~~~~~


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
https://01.org/lkp