tree: git://git.infradead.org/users/hch/block.git remove-disk_name head: 87e656f4eded79b0bb2d6dbe35f2b421b7444de3 commit: 00a22dc0ea475f8e3b0d871f0e99e20eaf3ed3b7 [7/9] block: store a gendisk in struct parsed_partitions config: powerpc-randconfig-r033-20210723 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 3f2c1e99e44d028d5e9dd685f3c568f2661f2f68) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu git remote add hch-block git://git.infradead.org/users/hch/block.git git fetch --no-tags hch-block remove-disk_name git checkout 00a22dc0ea475f8e3b0d871f0e99e20eaf3ed3b7 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash block/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): note_bootable_part(state->bdev->bd_dev, found_root, ~~~~~ ^ 1 error generated. vim +136 block/partitions/mac.c ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 30 1493bf217f7f59 fs/partitions/mac.c Tejun Heo 2010-05-15 31 int mac_partition(struct parsed_partitions *state) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 32 { ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 33 Sector sect; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 34 unsigned char *data; fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 35 int slot, blocks_in_map; 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 36 unsigned secsize, datasize, partoffset; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 37 #ifdef CONFIG_PPC_PMAC ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 38 int found_root = 0; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 39 int found_root_goodness = 0; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 40 #endif ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 41 struct mac_partition *part; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 42 struct mac_driver_desc *md; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 43 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 44 /* Get 0th block and look at the first partition map entry. */ 1493bf217f7f59 fs/partitions/mac.c Tejun Heo 2010-05-15 45 md = read_part_sector(state, 0, &sect); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 46 if (!md) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 47 return -1; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 48 if (be16_to_cpu(md->signature) != MAC_DRIVER_MAGIC) { ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 49 put_dev_sector(sect); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 50 return 0; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 51 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 52 secsize = be16_to_cpu(md->block_size); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 53 put_dev_sector(sect); 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 54 datasize = round_down(secsize, 512); 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 55 data = read_part_sector(state, datasize / 512, &sect); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 56 if (!data) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 57 return -1; 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 58 partoffset = secsize % 512; 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 59 if (partoffset + sizeof(*part) > datasize) 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 60 return -1; 02e2a5bfebe99e block/partitions/mac.c Kees Cook 2015-11-19 61 part = (struct mac_partition *) (data + partoffset); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 62 if (be16_to_cpu(part->signature) != MAC_PARTITION_MAGIC) { ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 63 put_dev_sector(sect); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 64 return 0; /* not a MacOS disk */ ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 65 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 66 blocks_in_map = be32_to_cpu(part->map_count); fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 67 if (blocks_in_map < 0 || blocks_in_map >= DISK_MAX_PARTS) { fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 68 put_dev_sector(sect); fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 69 return 0; fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 70 } 06004e6eebdaf1 block/partitions/mac.c Ming Lei 2013-02-27 71 06004e6eebdaf1 block/partitions/mac.c Ming Lei 2013-02-27 72 if (blocks_in_map >= state->limit) 06004e6eebdaf1 block/partitions/mac.c Ming Lei 2013-02-27 73 blocks_in_map = state->limit - 1; 06004e6eebdaf1 block/partitions/mac.c Ming Lei 2013-02-27 74 fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 75 strlcat(state->pp_buf, " [mac]", PAGE_SIZE); fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 76 for (slot = 1; slot <= blocks_in_map; ++slot) { fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 77 int pos = slot * secsize; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 78 put_dev_sector(sect); 1493bf217f7f59 fs/partitions/mac.c Tejun Heo 2010-05-15 79 data = read_part_sector(state, pos/512, &sect); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 80 if (!data) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 81 return -1; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 82 part = (struct mac_partition *) (data + pos%512); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 83 if (be16_to_cpu(part->signature) != MAC_PARTITION_MAGIC) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 84 break; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 85 put_partition(state, slot, ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 86 be32_to_cpu(part->start_block) * (secsize/512), ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 87 be32_to_cpu(part->block_count) * (secsize/512)); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 88 582940508b5d58 block/partitions/mac.c Rasmus Villemoes 2014-09-16 89 if (!strncasecmp(part->type, "Linux_RAID", 10)) cc9106247de925 fs/partitions/mac.c Cesar Eduardo Barros 2010-04-17 90 state->parts[slot].flags = ADDPART_FLAG_RAID; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 91 #ifdef CONFIG_PPC_PMAC ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 92 /* ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 93 * If this is the first bootable partition, tell the ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 94 * setup code, in case it wants to make this the root. ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 95 */ e8222502ee6157 fs/partitions/mac.c Benjamin Herrenschmidt 2006-03-28 96 if (machine_is(powermac)) { ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 97 int goodness = 0; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 98 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 99 mac_fix_string(part->processor, 16); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 100 mac_fix_string(part->name, 32); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 101 mac_fix_string(part->type, 32); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 102 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 103 if ((be32_to_cpu(part->status) & MAC_STATUS_BOOTABLE) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 104 && strcasecmp(part->processor, "powerpc") == 0) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 105 goodness++; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 106 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 107 if (strcasecmp(part->type, "Apple_UNIX_SVR2") == 0 582940508b5d58 block/partitions/mac.c Rasmus Villemoes 2014-09-16 108 || (strncasecmp(part->type, "Linux", 5) == 0 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 109 && strcasecmp(part->type, "Linux_swap") != 0)) { ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 110 int i, l; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 111 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 112 goodness++; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 113 l = strlen(part->name); ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 114 if (strcmp(part->name, "/") == 0) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 115 goodness++; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 116 for (i = 0; i <= l - 4; ++i) { 582940508b5d58 block/partitions/mac.c Rasmus Villemoes 2014-09-16 117 if (strncasecmp(part->name + i, "root", ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 118 4) == 0) { ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 119 goodness += 2; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 120 break; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 121 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 122 } 582940508b5d58 block/partitions/mac.c Rasmus Villemoes 2014-09-16 123 if (strncasecmp(part->name, "swap", 4) == 0) ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 124 goodness--; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 125 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 126 ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 127 if (goodness > found_root_goodness) { fa7ea87a057958 fs/partitions/mac.c Timo Warns 2011-02-17 128 found_root = slot; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 129 found_root_goodness = goodness; ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 130 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 131 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 132 #endif /* CONFIG_PPC_PMAC */ ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 133 } ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 134 #ifdef CONFIG_PPC_PMAC ^1da177e4c3f41 fs/partitions/mac.c Linus Torvalds 2005-04-16 135 if (found_root_goodness) 1493bf217f7f59 fs/partitions/mac.c Tejun Heo 2010-05-15 @136 note_bootable_part(state->bdev->bd_dev, found_root, :::::: The code at line 136 was first introduced by commit :::::: 1493bf217f7f59a5d9e2095a7dbcec00fb36ca8b block: use struct parsed_partitions *state universally in partition check code :::::: TO: Tejun Heo <tj(a)kernel.org&gt; :::::: CC: Jens Axboe <jens.axboe(a)oracle.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org