linux-kernel - Re: [PATCH v3 1/3] Make call_usermodehelper

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Message-ID: <201608300022.kW2H6bFr%fengguang.wu@intel.com>
Date:   Tue, 30 Aug 2016 00:58:20 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Zhao Lei <zhaolei@...fujitsu.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        containers@...ts.linux-foundation.org,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Mateusz Guzik <mguzik@...hat.com>,
        Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
        Stéphane Graber <stgraber@...ntu.com>,
        Andrei Vagin <avagin@...il.com>,
        Zhao Lei <zhaolei@...fujitsu.com>
Subject: Re: [PATCH v3 1/3] Make call_usermodehelper_exec possible to set pid
 namespace

Hi Zhao,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.8-rc4 next-20160825]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Zhao-Lei/Make-core_pattern-support-namespace/20160829-201413
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   lib/crc32.c:148: warning: No description found for parameter 'tab)[256]'
   lib/crc32.c:148: warning: Excess function parameter 'tab' description in 'crc32_le_generic'
   lib/crc32.c:293: warning: No description found for parameter 'tab)[256]'
   lib/crc32.c:293: warning: Excess function parameter 'tab' description in 'crc32_be_generic'
   lib/crc32.c:1: warning: no structured comments found
>> kernel/kmod.c:624: warning: No description found for parameter 'init_intermediate'

vim +/init_intermediate +624 kernel/kmod.c

a06a4dc3 Neil Horman         2010-05-26  608   *
a06a4dc3 Neil Horman         2010-05-26  609   * The init function is used to customize the helper process prior to
a06a4dc3 Neil Horman         2010-05-26  610   * exec.  A non-zero return code causes the process to error out, exit,
a06a4dc3 Neil Horman         2010-05-26  611   * and return the failure to the calling process
0ab4dc92 Jeremy Fitzhardinge 2007-07-17  612   *
a06a4dc3 Neil Horman         2010-05-26  613   * The cleanup function is just before ethe subprocess_info is about to
0ab4dc92 Jeremy Fitzhardinge 2007-07-17  614   * be freed.  This can be used for freeing the argv and envp.  The
0ab4dc92 Jeremy Fitzhardinge 2007-07-17  615   * Function must be runnable in either a process context or the
0ab4dc92 Jeremy Fitzhardinge 2007-07-17  616   * context in which call_usermodehelper_exec is called.
0ab4dc92 Jeremy Fitzhardinge 2007-07-17  617   */
938e4b22 Lucas De Marchi     2013-04-30  618  struct subprocess_info *call_usermodehelper_setup(char *path, char **argv,
938e4b22 Lucas De Marchi     2013-04-30  619  		char **envp, gfp_t gfp_mask,
a0807e8e Zhao Lei            2016-08-29  620  		int (*init_intermediate)(struct subprocess_info *info),
87966996 David Howells       2011-06-17  621  		int (*init)(struct subprocess_info *info, struct cred *new),
a06a4dc3 Neil Horman         2010-05-26  622  		void (*cleanup)(struct subprocess_info *info),
a06a4dc3 Neil Horman         2010-05-26  623  		void *data)
0ab4dc92 Jeremy Fitzhardinge 2007-07-17 @624  {
938e4b22 Lucas De Marchi     2013-04-30  625  	struct subprocess_info *sub_info;
938e4b22 Lucas De Marchi     2013-04-30  626  	sub_info = kzalloc(sizeof(struct subprocess_info), gfp_mask);
938e4b22 Lucas De Marchi     2013-04-30  627  	if (!sub_info)
938e4b22 Lucas De Marchi     2013-04-30  628  		goto out;
938e4b22 Lucas De Marchi     2013-04-30  629  
b6b50a81 Frederic Weisbecker 2015-09-09  630  	INIT_WORK(&sub_info->work, call_usermodehelper_exec_work);
938e4b22 Lucas De Marchi     2013-04-30  631  	sub_info->path = path;
938e4b22 Lucas De Marchi     2013-04-30  632  	sub_info->argv = argv;

:::::: The code at line 624 was first introduced by commit
:::::: 0ab4dc92278a0f3816e486d6350c6652a72e06c8 usermodehelper: split setup from execution

:::::: TO: Jeremy Fitzhardinge <jeremy@...source.com>
:::::: CC: Jeremy Fitzhardinge <jeremy@...p.org>

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