linux-kernel - Re: [PATCH 27/31] Add debugger entry points for M68K

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Date:	Fri, 29 Jan 2016 05:24:12 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Jeffrey Merkey <jeffmerkey@...il.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	geert@...ux-m68k.org, linux.mdb@...il.com,
	linux-m68k@...ts.linux-m68k.org
Subject: Re: [PATCH 27/31] Add debugger entry points for M68K

Hi Jeffrey,

[auto build test ERROR on v4.5-rc1]
[also build test ERROR on next-20160128]
[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/Jeffrey-Merkey/Add-hard-soft-lockup-debugger-entry-points/20160129-035852
config: m68k-sun3_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=m68k 

All error/warnings (new ones prefixed by >>):

   In file included from kernel/notifier.c:1:0:
>> include/linux/kdebug.h:20:16: warning: 'enum die_val' declared inside parameter list
            struct pt_regs *regs, long err, int trap, int sig);
                   ^
>> include/linux/kdebug.h:20:16: warning: its scope is only this definition or declaration, which is probably not what you want
>> kernel/notifier.c:537:16: warning: 'enum die_val' declared inside parameter list
            struct pt_regs *regs, long err, int trap, int sig)
                   ^
>> kernel/notifier.c:536:37: error: parameter 1 ('val') has incomplete type
    int notrace notify_die(enum die_val val, const char *str,
                                        ^
   kernel/notifier.c: In function 'notify_die':
>> kernel/notifier.c:550:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^

vim +20 include/linux/kdebug.h

1eeb66a1 Christoph Hellwig 2007-05-08   4  #include <asm/kdebug.h>
1eeb66a1 Christoph Hellwig 2007-05-08   5  
fe9844d5 Andrew Morton     2007-07-31   6  struct notifier_block;
fe9844d5 Andrew Morton     2007-07-31   7  
1eeb66a1 Christoph Hellwig 2007-05-08   8  struct die_args {
1eeb66a1 Christoph Hellwig 2007-05-08   9  	struct pt_regs *regs;
1eeb66a1 Christoph Hellwig 2007-05-08  10  	const char *str;
1eeb66a1 Christoph Hellwig 2007-05-08  11  	long err;
1eeb66a1 Christoph Hellwig 2007-05-08  12  	int trapnr;
1eeb66a1 Christoph Hellwig 2007-05-08  13  	int signr;
1eeb66a1 Christoph Hellwig 2007-05-08  14  };
1eeb66a1 Christoph Hellwig 2007-05-08  15  
1eeb66a1 Christoph Hellwig 2007-05-08  16  int register_die_notifier(struct notifier_block *nb);
1eeb66a1 Christoph Hellwig 2007-05-08  17  int unregister_die_notifier(struct notifier_block *nb);
1eeb66a1 Christoph Hellwig 2007-05-08  18  
1eeb66a1 Christoph Hellwig 2007-05-08  19  int notify_die(enum die_val val, const char *str,
1eeb66a1 Christoph Hellwig 2007-05-08 @20  	       struct pt_regs *regs, long err, int trap, int sig);
1eeb66a1 Christoph Hellwig 2007-05-08  21  
1eeb66a1 Christoph Hellwig 2007-05-08  22  #endif /* _LINUX_KDEBUG_H */

:::::: The code at line 20 was first introduced by commit
:::::: 1eeb66a1bb973534dc3d064920a5ca683823372e move die notifier handling to common code

:::::: TO: Christoph Hellwig <hch@....de>
:::::: CC: Linus Torvalds <torvalds@...dy.linux-foundation.org>

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