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Date:   Tue, 21 Nov 2023 13:50:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Naresh Solanki <naresh.solanki@...ements.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Naresh Solanki <naresh.solanki@...ements.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] regulator: event: Add regulator netlink event support

Hi Naresh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 753e4d5c433da57da75dd4c3e1aececc8e874a62]

url:    https://github.com/intel-lab-lkp/linux/commits/Naresh-Solanki/regulator-event-Add-regulator-netlink-event-support/20231121-034604
base:   753e4d5c433da57da75dd4c3e1aececc8e874a62
patch link:    https://lore.kernel.org/r/20231120194311.3581036-1-naresh.solanki%409elements.com
patch subject: [PATCH v1] regulator: event: Add regulator netlink event support
config: x86_64-buildonly-randconfig-001-20231121 (https://download.01.org/0day-ci/archive/20231121/202311211304.w5znAwJu-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231121/202311211304.w5znAwJu-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/202311211304.w5znAwJu-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/kernel.h:31,
                    from include/linux/skbuff.h:13,
                    from include/linux/netlink.h:7,
                    from include/net/netlink.h:6,
                    from drivers/regulator/event.c:3:
   drivers/regulator/event.c: In function 'reg_generate_netlink_event':
>> include/linux/kern_levels.h:5:18: warning: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'u64' {aka 'long long unsigned int'} [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/printk.h:427:11: note: in definition of macro 'printk_index_wrap'
     427 |   _p_func(_fmt, ##__VA_ARGS__);    \
         |           ^~~~
   include/linux/printk.h:129:3: note: in expansion of macro 'printk'
     129 |   printk(fmt, ##__VA_ARGS__);  \
         |   ^~~~~~
   include/linux/printk.h:585:2: note: in expansion of macro 'no_printk'
     585 |  no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |  ^~~~~~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
         |                    ^~~~~~~~
   include/linux/printk.h:585:12: note: in expansion of macro 'KERN_DEBUG'
     585 |  no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |            ^~~~~~~~~~
   drivers/regulator/event.c:92:2: note: in expansion of macro 'pr_debug'
      92 |  pr_debug("%s -> %lx , ret: %x %x", reg_name, event, size);
         |  ^~~~~~~~
   drivers/regulator/event.c:92:20: note: format string is defined here
      92 |  pr_debug("%s -> %lx , ret: %x %x", reg_name, event, size);
         |                  ~~^
         |                    |
         |                    long unsigned int
         |                  %llx
   In file included from include/linux/kernel.h:31,
                    from include/linux/skbuff.h:13,
                    from include/linux/netlink.h:7,
                    from include/net/netlink.h:6,
                    from drivers/regulator/event.c:3:
>> include/linux/kern_levels.h:5:18: warning: format '%x' expects a matching 'unsigned int' argument [-Wformat=]
       5 | #define KERN_SOH "\001"  /* ASCII Start Of Header */
         |                  ^~~~~~
   include/linux/printk.h:427:11: note: in definition of macro 'printk_index_wrap'
     427 |   _p_func(_fmt, ##__VA_ARGS__);    \
         |           ^~~~
   include/linux/printk.h:129:3: note: in expansion of macro 'printk'
     129 |   printk(fmt, ##__VA_ARGS__);  \
         |   ^~~~~~
   include/linux/printk.h:585:2: note: in expansion of macro 'no_printk'
     585 |  no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |  ^~~~~~~~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
      15 | #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
         |                    ^~~~~~~~
   include/linux/printk.h:585:12: note: in expansion of macro 'KERN_DEBUG'
     585 |  no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
         |            ^~~~~~~~~~
   drivers/regulator/event.c:92:2: note: in expansion of macro 'pr_debug'
      92 |  pr_debug("%s -> %lx , ret: %x %x", reg_name, event, size);
         |  ^~~~~~~~
   drivers/regulator/event.c:92:33: note: format string is defined here
      92 |  pr_debug("%s -> %lx , ret: %x %x", reg_name, event, size);
         |                                ~^
         |                                 |
         |                                 unsigned int


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  

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

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