Messages in this thread | | | Date | Sat, 2 Jul 2022 05:40:42 +0800 | From | kernel test robot <> | Subject | [mcgrof-next:20220615-dm-zoned-npo2 13/13] drivers/md/dm-zoned-npo2-target.c:62:13: warning: variable 'ret' set but not used |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20220615-dm-zoned-npo2 head: 83ef82d1e5f86bc596bc3d9c02410465f0dfc26f commit: 83ef82d1e5f86bc596bc3d9c02410465f0dfc26f [13/13] dm: add non power of 2 zoned target config: csky-allmodconfig (https://download.01.org/0day-ci/archive/20220702/202207020515.LhdrBdTo-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 11.3.0 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/mcgrof/linux-next.git/commit/?id=83ef82d1e5f86bc596bc3d9c02410465f0dfc26f git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git git fetch --no-tags mcgrof-next 20220615-dm-zoned-npo2 git checkout 83ef82d1e5f86bc596bc3d9c02410465f0dfc26f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash drivers/md/
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/md/dm-zoned-npo2-target.c: In function 'dmz_npo2_ctr': >> drivers/md/dm-zoned-npo2-target.c:62:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 62 | int ret = 0; | ^~~
vim +/ret +62 drivers/md/dm-zoned-npo2-target.c
53 54 /* 55 * <dev-path> 56 * This target works on the complete zoned device. Partial mapping is not 57 * supported 58 */ 59 static int dmz_npo2_ctr(struct dm_target *ti, unsigned int argc, char **argv) 60 { 61 struct dmz_npo2_target *dmh = NULL; > 62 int ret = 0; 63 sector_t zsze; 64 sector_t disk_size; 65 66 if (argc < 1) 67 return -EINVAL; 68 69 dmh = kmalloc(sizeof(*dmh), GFP_KERNEL); 70 if (!dmh) 71 return -ENOMEM; 72 73 ret = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), 74 &dmh->dev); 75 76 zsze = blk_queue_zone_sectors(bdev_get_queue(dmh->dev->bdev)); 77 78 disk_size = get_capacity(dmh->dev->bdev->bd_disk); 79 80 if (ti->len != disk_size || ti->begin) { 81 DMERR("%pg Partial mapping of the target not supported", 82 dmh->dev->bdev); 83 return -EINVAL; 84 } 85 86 if (is_power_of_2(zsze)) { 87 DMERR("%pg zone size is power of 2", dmh->dev->bdev); 88 return -EINVAL; 89 } 90 91 dmh->zsze = zsze; 92 dmh->zsze_po2 = 1 << get_count_order_long(zsze); 93 dmh->zsze_diff = dmh->zsze_po2 - dmh->zsze; 94 95 ti->private = dmh; 96 ti->num_flush_bios = 1; 97 ti->num_discard_bios = 1; 98 ti->num_secure_erase_bios = 1; 99 ti->num_write_zeroes_bios = 1; 100 101 dmh->nr_zones = npo2_zone_no(dmh, ti->len); 102 ti->len = dmh->zsze_po2 * dmh->nr_zones; 103 104 return 0; 105 } 106
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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