linux-kernel - Re: [PATCH 05/45] C++: Set compilation as C++ for .c files

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Message-ID: <201804021242.NgXgixG7%fengguang.wu@intel.com>
Date:   Mon, 2 Apr 2018 14:10:50 +0800
From:   kbuild test robot <lkp@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/45] C++: Set compilation as C++ for .c files

Hi David,

I love your patch! Yet something to improve:

[auto build test ERROR on v4.16-rc7]
[cannot apply to linus/master tip/x86/core tip/locking/core v4.16 next-20180329]
[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/David-Howells/C-Convert-the-kernel-to-C/20180402-120344
config: x86_64-randconfig-x014-201813 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   scripts/Makefile.kasan:17: Cannot use CONFIG_KASAN: -fsanitize=kernel-address is not supported by compiler
   cc1: warning: command line option '-fno-rtti' is valid for C++/ObjC++ but not for C
   cc1: warning: command line option '-fpermissive' is valid for C++/ObjC++ but not for C
   In file included from include/linux/page-flags.h:9:0,
                    from kernel/bounds.c:10:
>> include/linux/types.h:6:2: error: #error not c++
    #error not c++
     ^~~~~
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +6 include/linux/types.h

     4	
     5	#ifndef __cplusplus
   > 6	#error not c++
     7	#endif
     8	

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

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