linux-kernel - Re: [PATCH POC 1/4] printk: Prepeparation for fake cont buffers

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Message-ID: <201607160256.HaERvTJR%fengguang.wu@intel.com>
Date:	Sat, 16 Jul 2016 02:26:53 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Petr Mladek <pmladek@...e.com>
Cc:	kbuild-all@...org, Andrew Morton <akpm@...ux-foundation.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Jiri Kosina <jkosina@...e.com>, Jan Kara <jack@...e.com>,
	Tejun Heo <tj@...nel.org>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	Byungchul Park <byungchul.park@....com>,
	linux-kernel@...r.kernel.org, Petr Mladek <pmladek@...e.com>
Subject: Re: [PATCH POC 1/4] printk: Prepeparation for fake cont buffers

Hi,

[auto build test ERROR on v4.7-rc7]
[cannot apply to next-20160715]
[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/Petr-Mladek/printk-Several-fixes-of-cont-buffer-and-console-handling/20160716-012724
config: i386-tinyconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   kernel/printk/printk.c: In function 'console_cont_flush':
>> kernel/printk/printk.c:2177:11: error: 'struct cont' has no member named 'msg'
     if (!cont.msg->text_len)
              ^
>> kernel/printk/printk.c:2185:37: error: 'cont_console_len' undeclared (first use in this function)
     if (console_seq < log_next_seq && !cont_console_len)
                                        ^~~~~~~~~~~~~~~~
   kernel/printk/printk.c:2185:37: note: each undeclared identifier is reported only once for each function it appears in
   kernel/printk/printk.c:2191:27: error: 'struct cont' has no member named 'msg'
     call_console_drivers(cont.msg->level, NULL, 0, text, len);
                              ^

vim +2177 kernel/printk/printk.c

  2171	{
  2172		unsigned long flags;
  2173		size_t len;
  2174	
  2175		raw_spin_lock_irqsave(&logbuf_lock, flags);
  2176	
> 2177		if (!cont.msg->text_len)
  2178			goto out;
  2179	
  2180		/*
  2181		 * We still queue earlier records, likely because the console was
  2182		 * busy. The earlier ones need to be printed before this one, we
  2183		 * did not flush any fragment so far, so just let it queue up.
  2184		 */
> 2185		if (console_seq < log_next_seq && !cont_console_len)
  2186			goto out;
  2187	
  2188		len = cont_print_text(text, size);

---
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" (6334 bytes)