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Thu, 19 May 2022 19:30:31 +0000 Date: Fri, 20 May 2022 03:29:46 +0800 From: kernel test robot To: Konstantin Komarov Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: fs/ntfs3/fsntfs.c:770:5: warning: stack frame size (2112) exceeds limit (1024) in 'ntfs_clear_mft_tail' Message-ID: <202205200352.WNFV7NdM-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Konstantin, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b015dcd62b86d298829990f8261d5d154b8d7af5 commit: 6e5be40d32fb1907285277c02e74493ed43d77fe fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile date: 9 months ago config: hexagon-randconfig-r011-20220519 (https://download.01.org/0day-ci/archive/20220520/202205200352.WNFV7NdM-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e5be40d32fb1907285277c02e74493ed43d77fe git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6e5be40d32fb1907285277c02e74493ed43d77fe # 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=hexagon SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): fs/ntfs3/fsntfs.c:1874:9: warning: variable 'cnt' set but not used [-Wunused-but-set-variable] size_t cnt, off; ^ >> fs/ntfs3/fsntfs.c:770:5: warning: stack frame size (2112) exceeds limit (1024) in 'ntfs_clear_mft_tail' [-Wframe-larger-than] int ntfs_clear_mft_tail(struct ntfs_sb_info *sbi, size_t from, size_t to) ^ 2 warnings generated. vim +/ntfs_clear_mft_tail +770 fs/ntfs3/fsntfs.c 82cae269cfa953 Konstantin Komarov 2021-08-13 763 82cae269cfa953 Konstantin Komarov 2021-08-13 764 /* 82cae269cfa953 Konstantin Komarov 2021-08-13 765 * ntfs_clear_mft_tail 82cae269cfa953 Konstantin Komarov 2021-08-13 766 * 82cae269cfa953 Konstantin Komarov 2021-08-13 767 * formats empty records [from, to) 82cae269cfa953 Konstantin Komarov 2021-08-13 768 * sbi->mft.bitmap is locked for write 82cae269cfa953 Konstantin Komarov 2021-08-13 769 */ 82cae269cfa953 Konstantin Komarov 2021-08-13 @770 int ntfs_clear_mft_tail(struct ntfs_sb_info *sbi, size_t from, size_t to) 82cae269cfa953 Konstantin Komarov 2021-08-13 771 { 82cae269cfa953 Konstantin Komarov 2021-08-13 772 int err; 82cae269cfa953 Konstantin Komarov 2021-08-13 773 u32 rs; 82cae269cfa953 Konstantin Komarov 2021-08-13 774 u64 vbo; 82cae269cfa953 Konstantin Komarov 2021-08-13 775 struct runs_tree *run; 82cae269cfa953 Konstantin Komarov 2021-08-13 776 struct ntfs_inode *ni; 82cae269cfa953 Konstantin Komarov 2021-08-13 777 82cae269cfa953 Konstantin Komarov 2021-08-13 778 if (from >= to) 82cae269cfa953 Konstantin Komarov 2021-08-13 779 return 0; 82cae269cfa953 Konstantin Komarov 2021-08-13 780 82cae269cfa953 Konstantin Komarov 2021-08-13 781 rs = sbi->record_size; 82cae269cfa953 Konstantin Komarov 2021-08-13 782 ni = sbi->mft.ni; 82cae269cfa953 Konstantin Komarov 2021-08-13 783 run = &ni->file.run; 82cae269cfa953 Konstantin Komarov 2021-08-13 784 82cae269cfa953 Konstantin Komarov 2021-08-13 785 down_read(&ni->file.run_lock); 82cae269cfa953 Konstantin Komarov 2021-08-13 786 vbo = (u64)from * rs; 82cae269cfa953 Konstantin Komarov 2021-08-13 787 for (; from < to; from++, vbo += rs) { 82cae269cfa953 Konstantin Komarov 2021-08-13 788 struct ntfs_buffers nb; 82cae269cfa953 Konstantin Komarov 2021-08-13 789 82cae269cfa953 Konstantin Komarov 2021-08-13 790 err = ntfs_get_bh(sbi, run, vbo, rs, &nb); 82cae269cfa953 Konstantin Komarov 2021-08-13 791 if (err) 82cae269cfa953 Konstantin Komarov 2021-08-13 792 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 793 82cae269cfa953 Konstantin Komarov 2021-08-13 794 err = ntfs_write_bh(sbi, &sbi->new_rec->rhdr, &nb, 0); 82cae269cfa953 Konstantin Komarov 2021-08-13 795 nb_put(&nb); 82cae269cfa953 Konstantin Komarov 2021-08-13 796 if (err) 82cae269cfa953 Konstantin Komarov 2021-08-13 797 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 798 } 82cae269cfa953 Konstantin Komarov 2021-08-13 799 82cae269cfa953 Konstantin Komarov 2021-08-13 800 out: 82cae269cfa953 Konstantin Komarov 2021-08-13 801 sbi->mft.used = from; 82cae269cfa953 Konstantin Komarov 2021-08-13 802 up_read(&ni->file.run_lock); 82cae269cfa953 Konstantin Komarov 2021-08-13 803 return err; 82cae269cfa953 Konstantin Komarov 2021-08-13 804 } 82cae269cfa953 Konstantin Komarov 2021-08-13 805 :::::: The code at line 770 was first introduced by commit :::::: 82cae269cfa953032fbb8980a7d554d60fb00b17 fs/ntfs3: Add initialization of super block :::::: TO: Konstantin Komarov :::::: CC: Konstantin Komarov -- 0-DAY CI Kernel Test Service https://01.org/lkp