linux-kernel - Re: [PATCH 20/20] module.h: remove extable.h include now users have migrated

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Date:   Mon, 23 Jan 2017 06:52:51 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Paul Gortmaker <paul.gortmaker@...driver.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 20/20] module.h: remove extable.h include now users have
 migrated

Hi Paul,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.10-rc5 next-20170120]
[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/Paul-Gortmaker/ia64-move-ia64_done_with_exception-out-of-asm-uaccess-h/20170123-004155
config: cris-etraxfs_defconfig (attached as .config)
compiler: cris-linux-gcc (GCC) 6.2.0
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=cris 

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

   arch/cris/arch-v32/kernel/traps.c: In function 'fixup_BUG':
>> arch/cris/arch-v32/kernel/traps.c:159:11: error: implicit declaration of function 'search_exception_tables' [-Werror=implicit-function-declaration]
      fixup = search_exception_tables(instruction_pointer(regs) - 2);
              ^~~~~~~~~~~~~~~~~~~~~~~
>> arch/cris/arch-v32/kernel/traps.c:159:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fixup = search_exception_tables(instruction_pointer(regs) - 2);
            ^
   cc1: some warnings being treated as errors

vim +/search_exception_tables +159 arch/cris/arch-v32/kernel/traps.c

51533b61 Mikael Starvik 2005-07-27  143  
9ce1ea75 Jesper Nilsson 2007-12-03  144  void fixup_BUG(struct pt_regs *regs)
51533b61 Mikael Starvik 2005-07-27  145  {
9ce1ea75 Jesper Nilsson 2007-12-03  146  	BUG_regs = *regs;
9ce1ea75 Jesper Nilsson 2007-12-03  147  
9ce1ea75 Jesper Nilsson 2007-12-03  148  #ifdef CONFIG_DEBUG_BUGVERBOSE
9ce1ea75 Jesper Nilsson 2007-12-03  149  	/*
9ce1ea75 Jesper Nilsson 2007-12-03  150  	 * Fixup the BUG arguments through exception handlers.
9ce1ea75 Jesper Nilsson 2007-12-03  151  	 */
9ce1ea75 Jesper Nilsson 2007-12-03  152  	{
9ce1ea75 Jesper Nilsson 2007-12-03  153  		const struct exception_table_entry *fixup;
9ce1ea75 Jesper Nilsson 2007-12-03  154  
9ce1ea75 Jesper Nilsson 2007-12-03  155  		/*
9ce1ea75 Jesper Nilsson 2007-12-03  156  		 * ERP points at the "break 14" + 2, compensate for the 2
9ce1ea75 Jesper Nilsson 2007-12-03  157  		 * bytes.
9ce1ea75 Jesper Nilsson 2007-12-03  158  		 */
9ce1ea75 Jesper Nilsson 2007-12-03 @159  		fixup = search_exception_tables(instruction_pointer(regs) - 2);
9ce1ea75 Jesper Nilsson 2007-12-03  160  		if (fixup) {
9ce1ea75 Jesper Nilsson 2007-12-03  161  			/* Adjust the instruction pointer in the stackframe. */
9ce1ea75 Jesper Nilsson 2007-12-03  162  			instruction_pointer(regs) = fixup->fixup;
9ce1ea75 Jesper Nilsson 2007-12-03  163  			arch_fixup(regs);
51533b61 Mikael Starvik 2005-07-27  164  		}
9ce1ea75 Jesper Nilsson 2007-12-03  165  	}
9ce1ea75 Jesper Nilsson 2007-12-03  166  #else
9ce1ea75 Jesper Nilsson 2007-12-03  167  	/* Dont try to lookup the filename + line, just dump regs.  */

:::::: The code at line 159 was first introduced by commit
:::::: 9ce1ea751f7256b2248321c2427612a295f15137 CRIS v32: Update and improve kernel/traps.c

:::::: TO: Jesper Nilsson <jesper.nilsson@...s.com>
:::::: CC: Jesper Nilsson <jesper.nilsson@...s.com>

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