linux-kernel - Re: [PATCH 3/3] pipe: add proc_dopipe_max_size() to safely assign pipe_max

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Date:   Fri, 29 Sep 2017 23:19:44 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Joe Lawrence <joe.lawrence@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Mikulas Patocka <mpatocka@...hat.com>,
        Michael Kerrisk <mtk.manpages@...il.com>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: Re: [PATCH 3/3] pipe: add proc_dopipe_max_size() to safely assign
 pipe_max_size

Hi Joe,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.14-rc2 next-20170929]
[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/Joe-Lawrence/A-few-round_pipe_size-and-pipe-max-size-fixups/20170929-205234
config: h8300-h8300h-sim_defconfig (attached as .config)
compiler: h8300-linux-gcc (GCC) 6.2.0
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
        make.cross ARCH=h8300 

All errors (new ones prefixed by >>):

   fs/pipe.o: In function `pipe_proc_fn':
>> fs/pipe.c:1133: undefined reference to `proc_dopipe_max_size'

vim +1133 fs/pipe.c

  1125	
  1126	/*
  1127	 * This should work even if CONFIG_PROC_FS isn't set, as proc_dointvec_minmax
  1128	 * will return an error.
  1129	 */
  1130	int pipe_proc_fn(struct ctl_table *table, int write, void __user *buf,
  1131			 size_t *lenp, loff_t *ppos)
  1132	{
> 1133		return proc_dopipe_max_size(table, write, buf, lenp, ppos);
  1134	}
  1135	

---
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/gzip" (4713 bytes)