linux-kernel - Re: [PATCH 2/3] printk: introduce reset_console

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Message-ID: <201601312014.A3FwjY5X%fengguang.wu@intel.com>
Date:	Sun, 31 Jan 2016 20:47:28 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:	kbuild-all@...org, Peter Hurley <peter@...leysoftware.com>,
	Byungchul Park <byungchul.park@....com>,
	akpm@...ux-foundation.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org, akinobu.mita@...il.com, jack@...e.cz,
	torvalds@...ux-foundation.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [PATCH 2/3] printk: introduce reset_console_drivers()

Hi Sergey,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.5-rc1 next-20160129]
[cannot apply to tip/core/locking]
[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/Sergey-Senozhatsky/printk-introduce-console_reset_on_panic-function/20160131-203605
config: i386-tinyconfig (attached as .config)
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_reset_on_panic':
   kernel/printk/printk.c:2426:2: error: implicit declaration of function 'zap_locks' [-Werror=implicit-function-declaration]
     zap_locks();
     ^
>> kernel/printk/printk.c:2427:2: error: implicit declaration of function 'reset_console_drivers' [-Werror=implicit-function-declaration]
     reset_console_drivers();
     ^
   cc1: some warnings being treated as errors

vim +/reset_console_drivers +2427 kernel/printk/printk.c

  2420		console_may_schedule = 0;
  2421		console_unlock();
  2422	}
  2423	
  2424	void console_reset_on_panic(void)
  2425	{
> 2426		zap_locks();
> 2427		reset_console_drivers();
  2428	}
  2429	
  2430	/*

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

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