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Date:   Sat, 7 Mar 2020 09:21:26 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     kbuild-all@...ts.01.org, linux-arch@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, clang-built-linux@...glegroups.com,
        x86@...nel.org
Subject: Re: [PATCH v2 11/20] linux/elfnote.h: Replace elf.h with UAPI
 equivalent

Hi Vincenzo,

I love your patch! Perhaps something to improve:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on linus/master v5.6-rc4 next-20200306]
[cannot apply to tip/x86/core tip/timers/vdso]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Vincenzo-Frascino/Introduce-common-headers/20200307-042945
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: parisc-generic-64bit_defconfig (attached as .config)
compiler: hppa64-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=parisc 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/elf.h:5:0,
                    from include/linux/module.h:18,
                    from crypto/arc4.mod.c:2:
>> arch/parisc/include/asm/elf.h:324:0: warning: "ELF_OSABI" redefined
    #define ELF_OSABI  ELFOSABI_LINUX
    
   In file included from include/linux/elfnote.h:62:0,
                    from include/linux/build-salt.h:4,
                    from crypto/arc4.mod.c:1:
   include/uapi/linux/elf.h:363:0: note: this is the location of the previous definition
    #define ELF_OSABI ELFOSABI_NONE
    

vim +/ELF_OSABI +324 arch/parisc/include/asm/elf.h

^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  312  
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  313  
71d577db01a5177 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  314  #define elf_check_arch(x)		\
71d577db01a5177 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  315  	((x)->e_machine == EM_PARISC && (x)->e_ident[EI_CLASS] == ELF_CLASS)
71d577db01a5177 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  316  #define compat_elf_check_arch(x)	\
71d577db01a5177 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  317  	((x)->e_machine == EM_PARISC && (x)->e_ident[EI_CLASS] == ELFCLASS32)
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  318  
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  319  /*
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  320   * These are used to set parameters in the core dumps.
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  321   */
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  322  #define ELF_DATA	ELFDATA2MSB
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  323  #define ELF_ARCH	EM_PARISC
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16 @324  #define ELF_OSABI 	ELFOSABI_LINUX
^1da177e4c3f415 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  325  

:::::: The code at line 324 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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