linux-kernel - Re: [PATCH v11 1/4] trace: Add trace any kernel object

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Message-ID: <202206030528.0x7yQIj3-lkp@intel.com>
Date:   Fri, 3 Jun 2022 06:05:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jeff Xie <xiehuan09@...il.com>, rostedt@...dmis.org
Cc:     kbuild-all@...ts.01.org, mingo@...hat.com, mhiramat@...nel.org,
        zanussi@...nel.org, linux-kernel@...r.kernel.org,
        Jeff Xie <xiehuan09@...il.com>
Subject: Re: [PATCH v11 1/4] trace: Add trace any kernel object

Hi Jeff,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on b39181f7c6907dc66ff937b74758671fa6ba430c]

url:    https://github.com/intel-lab-lkp/linux/commits/Jeff-Xie/trace-Introduce-objtrace-trigger-to-trace-the-kernel-object/20220603-004723
base:   b39181f7c6907dc66ff937b74758671fa6ba430c
config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20220603/202206030528.0x7yQIj3-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-1) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/765253f020469f94856aedc5a3fe5444e1e8f4e8
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jeff-Xie/trace-Introduce-objtrace-trigger-to-trace-the-kernel-object/20220603-004723
        git checkout 765253f020469f94856aedc5a3fe5444e1e8f4e8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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 arch/x86/include/asm/percpu.h:27,
                    from arch/x86/include/asm/preempt.h:6,
                    from include/linux/preempt.h:78,
                    from include/linux/spinlock.h:55,
                    from include/linux/wait.h:9,
                    from include/linux/wait_bit.h:8,
                    from include/linux/fs.h:6,
                    from include/linux/seq_buf.h:5,
                    from include/linux/trace_seq.h:5,
                    from kernel/trace/trace_output.h:5,
                    from kernel/trace/trace_object.c:9:
   kernel/trace/trace_object.c: In function 'event_object_trigger_parse':
>> include/linux/kern_levels.h:5:25: warning: format '%ld' expects argument of type 'long int', but argument 3 has type '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:489:9: note: in expansion of macro 'printk'
     489 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
      11 | #define KERN_ERR        KERN_SOH "3"    /* error conditions */
         |                         ^~~~~~~~
   include/linux/printk.h:489:16: note: in expansion of macro 'KERN_ERR'
     489 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         |                ^~~~~~~~
   kernel/trace/trace_object.c:336:17: note: in expansion of macro 'pr_err'
     336 |                 pr_err("the size of the %s should be:%ld\n", field->name, sizeof(void *));
         |                 ^~~~~~


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  

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