Hi Manoj, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on nf-next/master] [also build test WARNING on nf/master v5.5 next-20200204] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Manoj-Basapathi/netfilter-xtables-Add-snapshot-of-hardidletimer-target/20200204-195814 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master config: m68k-multi_defconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag Reported-by: kbuild test robot All warnings (new ones prefixed by >>): In file included from include/linux/kernel.h:15:0, from include/linux/list.h:9, from include/linux/module.h:12, from net/netfilter/xt_IDLETIMER.c:19: net/netfilter/xt_IDLETIMER.c: In function 'idletimer_tg_checkentry_v1': >> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'time64_t {aka long long int}' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/printk.h:137:10: note: in definition of macro 'no_printk' printk(fmt, ##__VA_ARGS__); \ ^~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ ^~~~~~~~ include/linux/printk.h:341:12: note: in expansion of macro 'KERN_DEBUG' no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~ net/netfilter/xt_IDLETIMER.c:376:5: note: in expansion of macro 'pr_debug' pr_debug("time_expiry_remaining %ld\n", ^~~~~~~~ -- In file included from include/linux/kernel.h:15:0, from include/linux/list.h:9, from include/linux/module.h:12, from net//netfilter/xt_IDLETIMER.c:19: net//netfilter/xt_IDLETIMER.c: In function 'idletimer_tg_checkentry_v1': >> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'time64_t {aka long long int}' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/printk.h:137:10: note: in definition of macro 'no_printk' printk(fmt, ##__VA_ARGS__); \ ^~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ ^~~~~~~~ include/linux/printk.h:341:12: note: in expansion of macro 'KERN_DEBUG' no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~ net//netfilter/xt_IDLETIMER.c:376:5: note: in expansion of macro 'pr_debug' pr_debug("time_expiry_remaining %ld\n", ^~~~~~~~ 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 :::::: The code at line 5 was first introduced by commit :::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_ to a 2 byte pattern :::::: TO: Joe Perches :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation