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arc=pass ("microsoft.com:s=arcselector9901:i=1") ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1666100369; a=rsa-sha256; cv=pass; b=WoXCsbxRejzWwsKcKp2T68AQCtVfyDAM1QLj6/bhumk4PLKWk64WTQ/+1PeoVAXR2rr6O/ /hj5QE6YquJuyjX1O1WeookGxIBgC3JcvnuTOeDxer1YS78nfiPcWoIDUFji8efQejjG1Z in/txLrbCGoZYcggE0k+Zpjj+pdZVEA= X-Rspamd-Server: rspam12 X-Rspam-User: Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=oracle.com header.s=corp-2022-7-12 header.b=P6yiSPtz; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=Y9xloMty; spf=pass (imf23.hostedemail.com: domain of dave.kleikamp@oracle.com designates 205.220.177.32 as permitted sender) smtp.mailfrom=dave.kleikamp@oracle.com; dmarc=pass (policy=none) header.from=oracle.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") X-Stat-Signature: i3nffseznwetaz6h1crzymoj74qa9mu5 X-Rspamd-Queue-Id: 5B9AC140039 X-HE-Tag: 1666100369-669141 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: On 10/18/22 3:11AM, Dongliang Mu wrote: > On Tue, Oct 18, 2022 at 1:50 PM kernel test robot wrote: >> >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master >> head: 4ca786ae6681b90b0ec3f4c55c89d12f835f8944 >> commit: 920f4b7e923b35fd9d117fd3cb616b310cd41010 [1304/1443] fs: jfs: fix shift-out-of-bounds in dbAllocAG >> config: mips-randconfig-r005-20221017 >> compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) >> reproduce (this is a W=1 build): >> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> # install mips cross compiling tool for clang build >> # apt-get install binutils-mipsel-linux-gnu >> # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=920f4b7e923b35fd9d117fd3cb616b310cd41010 >> git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git >> git fetch --no-tags linux-next master >> git checkout 920f4b7e923b35fd9d117fd3cb616b310cd41010 >> # save the config file >> mkdir build_dir && cp config build_dir/.config >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash fs/jfs/ >> >> If you fix the issue, kindly add following tag where applicable >> | Reported-by: kernel test robot >> >> All warnings (new ones prefixed by >>): >> >>>> fs/jfs/jfs_dmap.c:196:23: warning: result of comparison of constant 8796093022201 with expression of type 'int' is always false [-Wtautological-constant-out-of-range-compare] >> if (bmp->db_agl2size > MAXMAPSIZE - L2MAXAG) { >> ~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~ >> 1 warning generated. > > Hi Dave, > > I did not double check the upper bound of db_agl2size. It seems the > upper bound should be L2MAXL2SIZE - L2MAXAG, other than MAXMAPSIZE - > L2MAXAG. > > And L2MAXL2SIZE = L2BPERDMAP + 3 * L2LPERCTL = 13+3*10 = 43. > > I will send a fixes commit. Thanks for fixing that correctly. This was my mistake, since that's the value I asked you to use. I'll use your new patch. Shaggy