[kbuild-all] [linux-next:master 7041/9715] fs/ntfs3/fsntfs.c:770:5: warning: stack frame size (2112) exceeds limit (1024) in function 'ntfs_clear_mft_tail'

Hi Konstantin, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 46debfec12b4e038b93c62a86bd78ae62f9ba4ea commit: 6e5be40d32fb1907285277c02e74493ed43d77fe [7041/9715] fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile config: hexagon-randconfig-r013-20210824 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d26000e4cc2bc65e207a84fa26cb6e374d60aa12) 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/next/linux-next.git/commi... 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 6e5be40d32fb1907285277c02e74493ed43d77fe # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=hexagon If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; 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; ^ 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 <almaz.alexandrovich(a)paragon-software.com&gt; :::::: CC: Konstantin Komarov <almaz.alexandrovich(a)paragon-software.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org