linux-kernel - Re: [PATCH] mm: use enum for vm

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Message-ID: <202510110802.EXLvwqhL-lkp@intel.com>
Date: Sat, 11 Oct 2025 08:39:08 +0800
From: kernel test robot <lkp@...el.com>
To: Jakub Acs <acsjakub@...zon.de>, aliceryhl@...gle.com, djwong@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, jhubbard@...dia.com, acsjakub@...zon.de,
	akpm@...ux-foundation.org, axelrasmussen@...gle.com,
	chengming.zhou@...ux.dev, david@...hat.com,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, peterx@...hat.com,
	rust-for-linux@...r.kernel.org, xu.xin16@....com.cn
Subject: Re: [PATCH] mm: use enum for vm_flags

Hi Jakub,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]

url:    https://github.com/intel-lab-lkp/linux/commits/Jakub-Acs/mm-use-enum-for-vm_flags/20251010-124738
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20251008125427.68735-1-acsjakub%40amazon.de
patch subject: [PATCH] mm: use enum for vm_flags
config: parisc-randconfig-r072-20251011 (https://download.01.org/0day-ci/archive/20251011/202510110802.EXLvwqhL-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251011/202510110802.EXLvwqhL-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510110802.EXLvwqhL-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/elf.h:6,
                    from include/linux/module.h:20,
                    from include/linux/device/driver.h:21,
                    from include/linux/device.h:32,
                    from include/linux/node.h:18,
                    from include/linux/cpu.h:17,
                    from include/linux/static_call.h:135,
                    from include/linux/tracepoint.h:22,
                    from include/linux/mm.h:39,
                    from include/linux/pid_namespace.h:7,
                    from include/linux/nsfs.h:9,
                    from include/linux/proc_ns.h:8,
                    from init/version.c:18:
>> arch/parisc/include/asm/elf.h:320: warning: "ELF_OSABI" redefined
    #define ELF_OSABI  ELFOSABI_LINUX
    
   In file included from include/linux/elfnote.h:62,
                    from include/linux/build-salt.h:4,
                    from init/version.c:11:
   include/uapi/linux/elf.h:386: note: this is the location of the previous definition
    #define ELF_OSABI ELFOSABI_NONE
    


vim +/ELF_OSABI +320 arch/parisc/include/asm/elf.h

^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  308  
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  309  
71d577db01a517 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  310  #define elf_check_arch(x)		\
71d577db01a517 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  311  	((x)->e_machine == EM_PARISC && (x)->e_ident[EI_CLASS] == ELF_CLASS)
71d577db01a517 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  312  #define compat_elf_check_arch(x)	\
71d577db01a517 arch/parisc/include/asm/elf.h Helge Deller   2018-04-11  313  	((x)->e_machine == EM_PARISC && (x)->e_ident[EI_CLASS] == ELFCLASS32)
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  314  
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  315  /*
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  316   * These are used to set parameters in the core dumps.
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  317   */
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  318  #define ELF_DATA	ELFDATA2MSB
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  319  #define ELF_ARCH	EM_PARISC
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16 @320  #define ELF_OSABI 	ELFOSABI_LINUX
^1da177e4c3f41 include/asm-parisc/elf.h      Linus Torvalds 2005-04-16  321  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki