linux-kernel - Re: [PATCH] Implement leftpad syscall

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Message-ID: <201604011115.cmZXMgmp%fengguang.wu@intel.com>
Date:	Fri, 1 Apr 2016 11:22:07 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Richard Weinberger <richard@....at>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org, David Gstir <david@...ma-star.at>,
	Richard Weinberger <richard@....at>
Subject: Re: [PATCH] Implement leftpad syscall

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) {

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

Download attachment ".config.gz" of type "application/octet-stream" (12144 bytes)