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
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