Re: [PATCH] Implement leftpad syscall

kbuild test robot
2016-04-01T03:23:13Z

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Hi David,

[auto build test ERROR on v4.6-rc1]
[also build test ERROR on next-20160331]
[cannot apply to tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url: https://github.com/0day-ci/linux/commits/Richard-Weinberger/Implement-leftpad-syscall/20160401-063620
config: microblaze-mmu_defconfig (attached as .config)
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=microblaze

All errors (new ones prefixed by >>):

kernel/sys.c: In function 'SYSC_leftpad':
>> kernel/sys.c:2441:2: error: implicit declaration of function 'strlen_user' [-Werror=implicit-function-declaration]
size_t len = strlen_user(src);
^
cc1: some warnings being treated as errors

vim +/strlen_user +2441 kernel/sys.c

2435
2436
2437 SYSCALL_DEFINE4(leftpad, char *, src, char, pad, char *, dst, size_t, dst_len)
2438 {
2439 char *buf;
2440 long ret;
> 2441 size_t len = strlen_user(src);
2442 size_t pad_len = dst_len - len;
2443
2444 if (dst_len <= len || dst_len > 4096) {

---
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