tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 21ef7b1e17d039053edaeaf41142423810572741 commit: 29802d7ca33bc0a75c9da2a143eeed4f9e99fca4 [8194/8441] ublk: enable zoned storage support config: s390-randconfig-m041-20230809 (https://download.01.org/0day-ci/archive/20230810/202308100201.TCRhgdvN-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230810/202308100201.TCRhgdvN-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> | Closes: https://lore.kernel.org/r/202308100201.TCRhgdvN-lkp@xxxxxxxxx/ New smatch warnings: drivers/block/ublk_drv.c:445 ublk_setup_iod_zoned() warn: signedness bug returning '(-95)' Old smatch warnings: drivers/block/ublk_drv.c:963 ublk_setup_iod() warn: signedness bug returning '(-5)' drivers/block/ublk_drv.c:1404 ublk_commit_completion() warn: variable dereferenced before check 'req' (see line 1401) vim +445 drivers/block/ublk_drv.c 29802d7ca33bc0 Andreas Hindborg 2023-08-04 442 static blk_status_t ublk_setup_iod_zoned(struct ublk_queue *ubq, 29802d7ca33bc0 Andreas Hindborg 2023-08-04 443 struct request *req) 29802d7ca33bc0 Andreas Hindborg 2023-08-04 444 { 29802d7ca33bc0 Andreas Hindborg 2023-08-04 @445 return -EOPNOTSUPP; blk_status_t can either be a u32 or a u8 but for this warning to trigger it must be a u8 in this case. 29802d7ca33bc0 Andreas Hindborg 2023-08-04 446 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
