Re: [PATCH 6/8] mm/swap: get the swap file offset directly

From: kernel test robot <lkp@intel.com>
To: Kairui Song <ryncsn@gmail.com>, linux-mm@kvack.org
Cc: oe-kbuild-all@lists.linux.dev,
	Andrew Morton <akpm@linux-foundation.org>,
	Linux Memory Management List <linux-mm@kvack.org>,
	"Huang, Ying" <ying.huang@intel.com>,
	Matthew Wilcox <willy@infradead.org>,
	Chris Li <chrisl@kernel.org>, Barry Song <v-songbaohua@oppo.com>,
	Ryan Roberts <ryan.roberts@arm.com>, Neil Brown <neilb@suse.de>,
	Minchan Kim <minchan@kernel.org>, Hugh Dickins <hughd@google.com>,
	David Hildenbrand <david@redhat.com>,
	Yosry Ahmed <yosryahmed@google.com>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	Kairui Song <kasong@tencent.com>
Subject: Re: [PATCH 6/8] mm/swap: get the swap file offset directly
Date: Fri, 19 Apr 2024 02:43:16 +0800	[thread overview]
Message-ID: <202404190204.cy1pBxFg-lkp@intel.com> (raw)
In-Reply-To: <20240417160842.76665-7-ryncsn@gmail.com>

Hi Kairui,

kernel test robot noticed the following build errors:

[auto build test ERROR on ceph-client/testing]
[also build test ERROR on ceph-client/for-linus trondmy-nfs/linux-next konis-nilfs2/upstream jaegeuk-f2fs/dev-test jaegeuk-f2fs/dev cifs/for-next linus/master v6.9-rc4 next-20240418]
[cannot apply to akpm-mm/mm-everything]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Kairui-Song/NFS-remove-nfs_page_lengthg-and-usage-of-page_index/20240418-001343
base:   https://github.com/ceph/ceph-client.git testing
patch link:    https://lore.kernel.org/r/20240417160842.76665-7-ryncsn%40gmail.com
patch subject: [PATCH 6/8] mm/swap: get the swap file offset directly
config: alpha-defconfig (https://download.01.org/0day-ci/archive/20240419/202404190204.cy1pBxFg-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240419/202404190204.cy1pBxFg-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/202404190204.cy1pBxFg-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from mm/shmem.c:43:
   mm/swap.h: In function 'swap_file_pos':
>> mm/swap.h:12:25: error: implicit declaration of function 'swp_offset'; did you mean 'pmd_offset'? [-Werror=implicit-function-declaration]
      12 |         return ((loff_t)swp_offset(entry)) << PAGE_SHIFT;
         |                         ^~~~~~~~~~
         |                         pmd_offset
   In file included from mm/shmem.c:68:
   include/linux/swapops.h: At top level:
>> include/linux/swapops.h:107:23: error: conflicting types for 'swp_offset'; have 'long unsigned int(swp_entry_t)'
     107 | static inline pgoff_t swp_offset(swp_entry_t entry)
         |                       ^~~~~~~~~~
   mm/swap.h:12:25: note: previous implicit declaration of 'swp_offset' with type 'int()'
      12 |         return ((loff_t)swp_offset(entry)) << PAGE_SHIFT;
         |                         ^~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from mm/show_mem.c:19:
   mm/swap.h: In function 'swap_file_pos':
>> mm/swap.h:12:25: error: implicit declaration of function 'swp_offset'; did you mean 'pmd_offset'? [-Werror=implicit-function-declaration]
      12 |         return ((loff_t)swp_offset(entry)) << PAGE_SHIFT;
         |                         ^~~~~~~~~~
         |                         pmd_offset
   cc1: some warnings being treated as errors

vim +12 mm/swap.h

     9	
    10	static inline loff_t swap_file_pos(swp_entry_t entry)
    11	{
  > 12		return ((loff_t)swp_offset(entry)) << PAGE_SHIFT;
    13	}
    14	

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