Re: [PATCH] timekeeping: Prints the amounts of time spent during suspend

From: kbuild test robot
Date: Thu Aug 11 2016 - 16:07:11 EST


Hi Ruchi,

[auto build test WARNING on tip/timers/core]
[also build test WARNING on v4.8-rc1 next-20160811]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Ruchi-Kandoi/timekeeping-Prints-the-amounts-of-time-spent-during-suspend/20160812-034700
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 4.9.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=m68k

All warnings (new ones prefixed by >>):

kernel/time/timekeeping_debug.c: In function 'tk_debug_account_sleep_time':
>> kernel/time/timekeeping_debug.c:73:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 2 has type 'time64_t' [-Wformat=]
pr_info("Suspended for %lu.%03lu seconds\n", t->tv_sec,
^

vim +73 kernel/time/timekeeping_debug.c

57 struct dentry *d;
58
59 d = debugfs_create_file("sleep_time", 0444, NULL, NULL,
60 &tk_debug_sleep_time_fops);
61 if (!d) {
62 pr_err("Failed to create sleep_time debug file\n");
63 return -ENOMEM;
64 }
65
66 return 0;
67 }
68 late_initcall(tk_debug_sleep_time_init);
69
70 void tk_debug_account_sleep_time(struct timespec64 *t)
71 {
72 sleep_time_bin[fls(t->tv_sec)]++;
> 73 pr_info("Suspended for %lu.%03lu seconds\n", t->tv_sec,
74 t->tv_nsec / NSEC_PER_MSEC);
75 }
76

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