[linux-next:master 4045/12102] include/linux/printk.h:295:9: note: in expansion of macro 'KERN_ALERT'

[linux-next:master 4045/12102] include/linux/printk.h:295:9: note: in expansion of macro 'KERN_ALERT'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   c11d28ab4a691736e30b49813fb801847bd44e83
commit: f87dc808009ac86c790031627698ef1a34c31e25 [4045/12102] rcuperf: Add ability to increase object allocation size
config: i386-debian-10.3 (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build):
        git checkout f87dc808009ac86c790031627698ef1a34c31e25
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from include/linux/printk.h:7:0,
from include/linux/kernel.h:15,
from kernel/rcu/rcuperf.c:13:
kernel/rcu/rcuperf.c: In function 'kfree_perf_init':
include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 2 has type 'unsigned int' [-Wformat=]
#define KERN_SOH "001"  /* ASCII Start Of Header */
^
include/linux/kern_levels.h:9:20: note: in expansion of macro 'KERN_SOH'
#define KERN_ALERT KERN_SOH "1" /* action must be taken immediately */
^~~~~~~~
>> include/linux/printk.h:295:9: note: in expansion of macro 'KERN_ALERT'
printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~
kernel/rcu/rcuperf.c:726:2: note: in expansion of macro 'pr_alert'
pr_alert("kfree object size=%lun", kfree_mult * sizeof(struct kfree_obj));
^~~~~~~~
kernel/rcu/rcuperf.c:726:32: note: format string is defined here
pr_alert("kfree object size=%lun", kfree_mult * sizeof(struct kfree_obj));
~~^
%u

vim +/KERN_ALERT +295 include/linux/printk.h

968ab1838a5d48 Linus Torvalds 2010-11-15  285  
6e099f557d9c67 Dan Streetman  2014-06-04  286  /*
6e099f557d9c67 Dan Streetman  2014-06-04  287   * These can be used to print at the various log levels.
6e099f557d9c67 Dan Streetman  2014-06-04  288   * All of these will print unconditionally, although note that pr_debug()
6e099f557d9c67 Dan Streetman  2014-06-04  289   * and other debug macros are compiled out unless either DEBUG is defined
6e099f557d9c67 Dan Streetman  2014-06-04  290   * or CONFIG_DYNAMIC_DEBUG is set.
6e099f557d9c67 Dan Streetman  2014-06-04  291   */
a0cba2179ea4c1 Linus Torvalds 2016-08-09  292  #define pr_emerg(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09  293  	printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
a0cba2179ea4c1 Linus Torvalds 2016-08-09  294  #define pr_alert(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09 @295  	printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
a0cba2179ea4c1 Linus Torvalds 2016-08-09  296  #define pr_crit(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09  297  	printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
a0cba2179ea4c1 Linus Torvalds 2016-08-09  298  #define pr_err(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09  299  	printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
61ff72f4016804 Kefeng Wang    2019-11-28  300  #define pr_warn(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09  301  	printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
a0cba2179ea4c1 Linus Torvalds 2016-08-09  302  #define pr_notice(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09  303  	printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
a0cba2179ea4c1 Linus Torvalds 2016-08-09  304  #define pr_info(fmt, ...) \
a0cba2179ea4c1 Linus Torvalds 2016-08-09  305  	printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
7b1460eccad062 Steven Rostedt 2015-04-15  306  /*
7b1460eccad062 Steven Rostedt 2015-04-15  307   * Like KERN_CONT, pr_cont() should only be used when continuing
7b1460eccad062 Steven Rostedt 2015-04-15  308   * a line with no newline ('\n') enclosed. Otherwise it defaults
7b1460eccad062 Steven Rostedt 2015-04-15  309   * back to KERN_DEFAULT.
7b1460eccad062 Steven Rostedt 2015-04-15  310   */
968ab1838a5d48 Linus Torvalds 2010-11-15  311  #define pr_cont(fmt, ...) \
968ab1838a5d48 Linus Torvalds 2010-11-15  312  	printk(KERN_CONT fmt, ##__VA_ARGS__)
968ab1838a5d48 Linus Torvalds 2010-11-15  313  

:::::: The code at line 295 was first introduced by commit
:::::: a0cba2179ea4c1820fce2ee046b6ed90ecc56196 Revert "printk: create pr_<level> functions"

:::::: TO: Linus Torvalds <torvalds@linux-foundation.org>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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