Re: [PATCH] cpuset: Allow v2 behavior in v1 cgroup

From: kbuild test robot
Date: Thu Aug 17 2017 - 17:06:35 EST


Hi Waiman,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.13-rc5 next-20170817]
[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/Waiman-Long/cpuset-Allow-v2-behavior-in-v1-cgroup/20170818-040416
config: i386-randconfig-n0-201733 (attached as .config)
compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All warnings (new ones prefixed by >>):

kernel/cgroup/cpuset.c: In function 'set_v2_mode':
>> kernel/cgroup/cpuset.c:2145:2: warning: passing argument 3 of 'kstrtol' from incompatible pointer type [enabled by default]
ret = kstrtol(str, 0, &val);
^
In file included from include/linux/list.h:8:0,
from include/linux/kobject.h:20,
from include/linux/device.h:17,
from include/linux/node.h:17,
from include/linux/cpu.h:16,
from kernel/cgroup/cpuset.c:25:
include/linux/kernel.h:332:32: note: expected 'long int *' but argument is of type 'ssize_t *'
static inline int __must_check kstrtol(const char *s, unsigned int base, long *res)
^

vim +/kstrtol +2145 kernel/cgroup/cpuset.c

2138
2139 static int __init set_v2_mode(char *str)
2140 {
2141 ssize_t ret, val;
2142
2143 if (!str)
2144 return 0;
> 2145 ret = kstrtol(str, 0, &val);
2146 cpuset_v2_mode = !!val;
2147 return ret;
2148 }
2149 __setup("cpuset_v2_mode=", set_v2_mode);
2150

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

Attachment: .config.gz
Description: application/gzip