[linux-next:master 12909/13131] include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'cycles_t {aka unsigned int}'

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   c348a99ee55feac43b5b62a5957c6d8e2b6c3abe
commit: 09588b1f1d585719b641ca55e6a3ec3db8e06a07 [12909/13131] lib: test module for find_*_bit() functions
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 09588b1f1d585719b641ca55e6a3ec3db8e06a07
        # save the attached .config to linux build tree
        make.cross ARCH=alpha 

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:7:0,
                    from include/linux/kernel.h:14,
                    from lib/test_find_bit.c:28:
   lib/test_find_bit.c: In function 'test_find_first_bit':
>> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'cycles_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
   include/linux/printk.h:302:9: note: in expansion of macro 'KERN_ERR'
     printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
            ^~~~~~~~
   lib/test_find_bit.c:54:2: note: in expansion of macro 'pr_err'
     pr_err("find_first_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
     ^~~~~~
   lib/test_find_bit.c:54:31: note: format string is defined here
     pr_err("find_first_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
                                ~~^
                                %d
   In file included from include/linux/printk.h:7:0,
                    from include/linux/kernel.h:14,
                    from lib/test_find_bit.c:28:
   lib/test_find_bit.c: In function 'test_find_next_bit':
>> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'cycles_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
   include/linux/printk.h:302:9: note: in expansion of macro 'KERN_ERR'
     printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
            ^~~~~~~~
   lib/test_find_bit.c:68:2: note: in expansion of macro 'pr_err'
     pr_err("find_next_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
     ^~~~~~
   lib/test_find_bit.c:68:30: note: format string is defined here
     pr_err("find_next_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
                               ~~^
                               %d
   In file included from include/linux/printk.h:7:0,
                    from include/linux/kernel.h:14,
                    from lib/test_find_bit.c:28:
   lib/test_find_bit.c: In function 'test_find_next_zero_bit':
>> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'cycles_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
   include/linux/printk.h:302:9: note: in expansion of macro 'KERN_ERR'
     printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
            ^~~~~~~~
   lib/test_find_bit.c:82:2: note: in expansion of macro 'pr_err'
     pr_err("find_next_zero_bit:\t%ld cycles,\t%ld iterations\n",
     ^~~~~~
   lib/test_find_bit.c:82:33: note: format string is defined here
     pr_err("find_next_zero_bit:\t%ld cycles,\t%ld iterations\n",
                                  ~~^
                                  %d
   In file included from include/linux/printk.h:7:0,
                    from include/linux/kernel.h:14,
                    from lib/test_find_bit.c:28:
   lib/test_find_bit.c: In function 'test_find_last_bit':
>> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'cycles_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    #define KERN_ERR KERN_SOH "3" /* error conditions */
                     ^~~~~~~~
   include/linux/printk.h:302:9: note: in expansion of macro 'KERN_ERR'
     printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
            ^~~~~~~~
   lib/test_find_bit.c:102:2: note: in expansion of macro 'pr_err'
     pr_err("find_last_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
     ^~~~~~
   lib/test_find_bit.c:102:30: note: format string is defined here
     pr_err("find_last_bit:\t\t%ld cycles,\t%ld iterations\n", cycles, cnt);
                               ~~^
                               %d

vim +5 include/linux/kern_levels.h

314ba352 Joe Perches 2012-07-30  4  
04d2c8c8 Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c8 Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c8 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@xxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip


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