linux-kernel - [superna9999:odroid-go-ultra-dsi 16/17] include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int'

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Date:   Wed, 26 Oct 2022 11:44:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Neil Armstrong <neil.armstrong@...aro.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [superna9999:odroid-go-ultra-dsi 16/17]
 include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of
 type 'int', but argument 3 has type 'long unsigned int'

tree:   https://github.com/superna9999/linux odroid-go-ultra-dsi
head:   5ed5cd56bd5cf734df083c37df4ee94d14f1ff18
commit: c94e993c092226c0dfff291ca1b8f03f00ff43a8 [16/17] WiP
config: arm-buildonly-randconfig-r005-20221023 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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/superna9999/linux/commit/c94e993c092226c0dfff291ca1b8f03f00ff43a8
        git remote add superna9999 https://github.com/superna9999/linux
        git fetch --no-tags superna9999 odroid-go-ultra-dsi
        git checkout c94e993c092226c0dfff291ca1b8f03f00ff43a8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/meson/

If you fix the issue, kindly add following tag where applicable
| 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/clk.h:13,
                    from drivers/gpu/drm/meson/meson_dw_mipi_dsi.c:8:
   drivers/gpu/drm/meson/meson_dw_mipi_dsi.c: In function 'dw_mipi_dsi_get_lane_mbps':
>> include/linux/kern_levels.h:5:25: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:429:25: note: in definition of macro 'printk_index_wrap'
     429 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                         ^~~~
   include/linux/printk.h:530:9: note: in expansion of macro 'printk'
     530 |         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:530:16: note: in expansion of macro 'KERN_INFO'
     530 |         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         |                ^~~~~~~~~
   drivers/gpu/drm/meson/meson_dw_mipi_dsi.c:149:9: note: in expansion of macro 'pr_info'
     149 |         pr_info("%s: hs_clk_rate %d\n", __func__, mipi_dsi->phy_opts.mipi_dphy.hs_clk_rate);
         |         ^~~~~~~


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

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