tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 647060f3b592d3c8df0c85dd887557b03e6ea897 commit: b640eda3ba7ee210865f66e06aee62d0fbb9ce51 [4203/4677] f2fs: introduce checkpoint=merge mount option config: arm-randconfig-m031-20210119 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; New smatch warnings: fs/f2fs/checkpoint.c:1851 f2fs_start_ckpt_thread() warn: passing zero to 'PTR_ERR' Old smatch warnings: fs/f2fs/f2fs.h:2227 __bitmap_ptr() warn: potential pointer math issue ('&ckpt->sit_nat_version_bitmap + offset' is a 32 bit pointer) vim +/PTR_ERR +1851 fs/f2fs/checkpoint.c b640eda3ba7ee210 Daeho Jeong 2021-01-19 1839 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi) b640eda3ba7ee210 Daeho Jeong 2021-01-19 1840 { b640eda3ba7ee210 Daeho Jeong 2021-01-19 1841 dev_t dev = sbi->sb->s_bdev->bd_dev; b640eda3ba7ee210 Daeho Jeong 2021-01-19 1842 struct ckpt_req_control *cprc = &sbi->cprc_info; b640eda3ba7ee210 Daeho Jeong 2021-01-19 1843 b640eda3ba7ee210 Daeho Jeong 2021-01-19 1844 if (cprc->f2fs_issue_ckpt) b640eda3ba7ee210 Daeho Jeong 2021-01-19 1845 return 0; b640eda3ba7ee210 Daeho Jeong 2021-01-19 1846 b640eda3ba7ee210 Daeho Jeong 2021-01-19 1847 cprc->f2fs_issue_ckpt = kthread_run(issue_checkpoint_thread, sbi, b640eda3ba7ee210 Daeho Jeong 2021-01-19 1848 "f2fs_ckpt-%u:%u", MAJOR(dev), MINOR(dev)); b640eda3ba7ee210 Daeho Jeong 2021-01-19 1849 if (IS_ERR(cprc->f2fs_issue_ckpt)) { b640eda3ba7ee210 Daeho Jeong 2021-01-19 1850 cprc->f2fs_issue_ckpt = NULL; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ b640eda3ba7ee210 Daeho Jeong 2021-01-19 @1851 return PTR_ERR(cprc->f2fs_issue_ckpt); ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returning PTR_ERR(NULL) is success. b640eda3ba7ee210 Daeho Jeong 2021-01-19 1852 } b640eda3ba7ee210 Daeho Jeong 2021-01-19 1853 b640eda3ba7ee210 Daeho Jeong 2021-01-19 1854 set_task_ioprio(cprc->f2fs_issue_ckpt, DEFAULT_CHECKPOINT_IOPRIO); b640eda3ba7ee210 Daeho Jeong 2021-01-19 1855 b640eda3ba7ee210 Daeho Jeong 2021-01-19 1856 return 0; b640eda3ba7ee210 Daeho Jeong 2021-01-19 1857 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org