linux-kernel - include/linux/kern_levels.h:5:25: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'unsigned int'

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Message-ID: <202309250903.XNAjFuxy-lkp@intel.com>
Date:   Mon, 25 Sep 2023 09:23:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dan Carpenter <error27@...il.com>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Mark Brown <broonie@...nel.org>
Subject: include/linux/kern_levels.h:5:25: warning: format '%lx' expects
 argument of type 'long unsigned int', but argument 2 has type 'unsigned int'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6465e260f48790807eef06b583b38ca9789b6072
commit: 02a07872f84fc5fe61fa65310ff23bcad166a4f5 ASoC: dma-sh7760: cleanup a debug printk
date:   4 years, 9 months ago
config: sh-randconfig-r015-20221226 (https://download.01.org/0day-ci/archive/20230925/202309250903.XNAjFuxy-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230925/202309250903.XNAjFuxy-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309250903.XNAjFuxy-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/kernel.h:14,
                    from include/linux/list.h:9,
                    from include/linux/module.h:9,
                    from sound/soc/sh/dma-sh7760.c:13:
   sound/soc/sh/dma-sh7760.c: In function 'camelot_prepare':
>> include/linux/kern_levels.h:5:25: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'unsigned int' [-Wformat=]
       5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
         |                         ^~~~~~
   include/linux/printk.h:136:24: note: in definition of macro 'no_printk'
     136 |                 printk(fmt, ##__VA_ARGS__);             \
         |                        ^~~
   include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG      KERN_SOH "7"    /* debug-level messages */
         |                         ^~~~~~~~
   include/linux/printk.h:346:19: note: in expansion of macro 'KERN_DEBUG'
     346 |         no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |                   ^~~~~~~~~~
   sound/soc/sh/dma-sh7760.c:205:9: note: in expansion of macro 'pr_debug'
     205 |         pr_debug("PCM data: addr 0x%08lx len %d\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>

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