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Date: Fri, 7 Jun 2024 21:37:55 +0800
From: kernel test robot <lkp@intel.com>
To: Stephen Brennan <stephen.s.brennan@oracle.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: oe-kbuild-all@lists.linux.dev,
	Linux Memory Management List <linux-mm@kvack.org>,
	"Vishal Moola (Oracle)" <vishal.moola@gmail.com>,
	Omar Sandoval <osandov@osandov.com>,
	linux-debuggers@vger.kernel.org,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Stephen Brennan <stephen.s.brennan@oracle.com>,
	David Hildenbrand <david@redhat.com>, linux-kernel@vger.kernel.org,
	Hao Ge <gehao@kylinos.cn>, Vlastimil Babka <vbabka@suse.cz>
Subject: Re: [PATCH v3] mm: convert page type macros to enum
Message-ID: <202406072138.EUCgPNSP-lkp@intel.com>
References: <20240607001116.1061485-1-stephen.s.brennan@oracle.com>
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In-Reply-To: <20240607001116.1061485-1-stephen.s.brennan@oracle.com>

Hi Stephen,

kernel test robot noticed the following build errors:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Stephen-Brennan/mm-convert-page-type-macros-to-enum/20240607-081253
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20240607001116.1061485-1-stephen.s.brennan%40oracle.com
patch subject: [PATCH v3] mm: convert page type macros to enum
config: i386-randconfig-001-20240607 (https://download.01.org/0day-ci/archive/20240607/202406072138.EUCgPNSP-lkp@intel.com/config)
compiler: gcc-8 (Ubuntu 8.4.0-3ubuntu2) 8.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240607/202406072138.EUCgPNSP-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202406072138.EUCgPNSP-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from fs/f2fs/recovery.c:12:
>> fs/f2fs/f2fs.h:1118:6: error: nested redefinition of 'enum page_type'
    enum page_type {
         ^~~~~~~~~
   fs/f2fs/f2fs.h:1118:6: error: redeclaration of 'enum page_type'
   In file included from include/linux/mmzone.h:23,
                    from include/linux/gfp.h:7,
                    from include/linux/xarray.h:16,
                    from include/linux/list_lru.h:14,
                    from include/linux/fs.h:13,
                    from fs/f2fs/recovery.c:9:
   include/linux/page-flags.h:948:6: note: originally defined here
    enum page_type {
         ^~~~~~~~~


vim +1118 fs/f2fs/f2fs.h

39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1104  
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1105  /*
e1c42045203071 arter97     2014-08-06  1106   * The below are the page types of bios used in submit_bio().
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1107   * The available types are:
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1108   * DATA			User data pages. It operates as async mode.
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1109   * NODE			Node pages. It operates as async mode.
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1110   * META			FS metadata pages such as SIT, NAT, CP.
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1111   * NR_PAGE_TYPE		The number of page types.
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1112   * META_FLUSH		Make sure the previous pages are written
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1113   *			with waiting the bio's completion
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1114   * ...			Only can be used with META.
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1115   */
7d5e510944ce60 Jaegeuk Kim 2013-11-18  1116  #define PAGE_TYPE_OF_BIO(type)	((type) > META ? META : (type))
87161a2b0aed9e Jaegeuk Kim 2024-02-06  1117  #define PAGE_TYPE_ON_MAIN(type)	((type) == DATA || (type) == NODE)
39a53e0ce0df01 Jaegeuk Kim 2012-11-28 @1118  enum page_type {
6b8beca0edd320 Chao Yu     2022-05-06  1119  	DATA = 0,
6b8beca0edd320 Chao Yu     2022-05-06  1120  	NODE = 1,	/* should not change this */
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1121  	META,
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1122  	NR_PAGE_TYPE,
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1123  	META_FLUSH,
3db1de0e582c35 Daeho Jeong 2022-04-28  1124  	IPU,		/* the below types are used by tracepoints only. */
8ce67cb07dbf6b Jaegeuk Kim 2015-03-17  1125  	OPU,
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1126  };
39a53e0ce0df01 Jaegeuk Kim 2012-11-28  1127  

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