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Mon, 17 Nov 2025 05:30:59 -0800 (PST) MIME-Version: 1.0 References: <20251117-swap-table-p2-v2-18-37730e6ea6d5@tencent.com> <202511171912.yMOEajkV-lkp@intel.com> In-Reply-To: <202511171912.yMOEajkV-lkp@intel.com> From: Kairui Song Date: Mon, 17 Nov 2025 21:30:22 +0800 X-Gm-Features: AWmQ_bn6RSoBiaqmn6kqmtyhsS-hftve9ZnkvXr-GPymXU6BoQ87Qrz5mZ6aFLk Message-ID: Subject: Re: [PATCH v2 18/19] mm, swap: drop the SWAP_HAS_CACHE flag To: linux-mm@kvack.org Cc: kernel test robot , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Andrew Morton , Baoquan He , Barry Song , Chris Li , Nhat Pham , Yosry Ahmed , David Hildenbrand , Johannes Weiner , Youngjun Park , Hugh Dickins , Baolin Wang , Ying Huang , Kemeng Shi , Lorenzo Stoakes , "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam12 X-Rspam-User: X-Rspamd-Queue-Id: 68A081C000A X-Stat-Signature: jpuy3bdo8dfxb3zgagb3ddc8mhs1hyzb X-HE-Tag: 1763386261-551942 X-HE-Meta: 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 xbWXosJd 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Nov 17, 2025 at 7:23=E2=80=AFPM kernel test robot w= rote: > > Hi Kairui, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on 41218ede767f6b218185af65ce919d0cade75f6b] > > url: https://github.com/intel-lab-lkp/linux/commits/Kairui-Song/mm-swa= p-rename-__read_swap_cache_async-to-swap_cache_alloc_folio/20251117-021532 > base: 41218ede767f6b218185af65ce919d0cade75f6b > patch link: https://lore.kernel.org/r/20251117-swap-table-p2-v2-18-377= 30e6ea6d5%40tencent.com > patch subject: [PATCH v2 18/19] mm, swap: drop the SWAP_HAS_CACHE flag > config: riscv-defconfig (https://download.01.org/0day-ci/archive/20251117= /202511171912.yMOEajkV-lkp@intel.com/config) > compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 0= bba1e76581bad04e7d7f09f5115ae5e2989e0d9) > reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archi= ve/20251117/202511171912.yMOEajkV-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new vers= ion of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202511171912.yMOEajkV-lkp= @intel.com/ > > All warnings (new ones prefixed by >>): > > >> mm/swapfile.c:88:19: warning: unused variable 'Unused_offset' [-Wunuse= d-const-variable] > 88 | static const char Unused_offset[] =3D "Unused swap offset entr= y "; > | ^~~~~~~~~~~~~ > 1 warning generated. > > > vim +/Unused_offset +88 mm/swapfile.c > > ^1da177e4c3f41 Linus Torvalds 2005-04-16 84 > ^1da177e4c3f41 Linus Torvalds 2005-04-16 85 static const char Bad_file[= ] =3D "Bad swap file entry "; > ^1da177e4c3f41 Linus Torvalds 2005-04-16 86 static const char Unused_fi= le[] =3D "Unused swap file entry "; > ^1da177e4c3f41 Linus Torvalds 2005-04-16 87 static const char Bad_offse= t[] =3D "Bad swap offset entry "; > ^1da177e4c3f41 Linus Torvalds 2005-04-16 @88 static const char Unused_of= fset[] =3D "Unused swap offset entry "; > ^1da177e4c3f41 Linus Torvalds 2005-04-16 89 > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki My bad, should move the `Unused_offset` related change to the next commit, and remove it by then. It's just an unused variable so it can be dropped easily.