Hi Jarkko, kernel test robot noticed the following build warnings:
[auto build test WARNING on akpm-mm/mm-nonmm-unstable] [also build test WARNING on linus/master v7.3-rc7] [cannot apply to next-20261012] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jarkko-Sakkinen/lib-tests-kunit-for-associative-array/20261014-190138 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable patch link: https://lore.kernel.org/r/20261014160144.1835860-1-jarkko%40kernel.org patch subject: [PATCH] lib/tests: kunit for associative array config: arm-randconfig-1001-20261016 (https://download.01.org/0day-ci/archive/20261016/[email protected]/config) compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261016/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): >> lib/tests/assoc_array_kunit.c:62:2: warning: conversion from 'long long >> unsigned int' to 'long unsigned int' changes value from >> '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000010UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:63:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000020UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:64:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000030UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:65:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000040UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:66:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000050UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:67:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000060UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:68:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000070UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:69:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000080UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:70:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000090UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:71:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x00000000000000a0UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:72:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x00000000000000b0UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:73:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x00000000000000c0UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:74:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x00000000000000d0UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:75:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x00000000000000e0UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:76:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x00000000000000f0UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:77:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000100UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:78:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000110UL, ^~~~~~~~~~~~~~~~~~~~ lib/tests/assoc_array_kunit.c:79:2: warning: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '16045690984503098046' to '3405691582' [-Woverflow] 0xdeadbeefcafebabeUL, 0x0000000000000001UL, ^~~~~~~~~~~~~~~~~~~~ vim +62 lib/tests/assoc_array_kunit.c 19 20 /* 21 * As a quick remainder, these are the basic building blocks of an associative 22 * array: 23 * 24 * - struct assoc_array_node: a tree node representing a nibble of the search 25 * key. 26 * - struct assoc_array_shortcut: a tree node representing a sequence of nibbles 27 * shared by multiple search keys with no divergence among them. 28 * 29 * The keys in array will be created in order in tests, and is a constructed in 30 * a way that splits reach the level 8: 31 * 32 * - 0..16: Share prefix 0x21 at levels 0 and 4. 33 * - 17: Splits root shortcut at level 4. 34 * - 18..34: Share chunk 0. 35 * - 35: Splits shortcut at chunk boundary. 36 * - 36..46: Share prefix 0xbeef at levels 0..12. 37 * - 47: Splits shortcut at level 8. 38 * - 48..63: Distinct leaves at level 0. 39 * 40 * The numbers were picked partly based on trial and error, and partly trying to 41 * find smallest possible numbers reaching the level 8. 42 */ 43 static const unsigned long assoc_array_test_keys[ASSOC_ARRAY_TEST_NR_KEYS * 2] = { 44 0x0000000000000121UL, 0x0000000000000000UL, 45 0x0000000000000221UL, 0x0000000000000000UL, 46 0x0000000000000321UL, 0x0000000000000000UL, 47 0x0000000000000421UL, 0x0000000000000000UL, 48 0x0000000000000521UL, 0x0000000000000000UL, 49 0x0000000000000621UL, 0x0000000000000000UL, 50 0x0000000000000721UL, 0x0000000000000000UL, 51 0x0000000000000821UL, 0x0000000000000000UL, 52 0x0000000000000921UL, 0x0000000000000000UL, 53 0x0000000000000a21UL, 0x0000000000000000UL, 54 0x0000000000000b21UL, 0x0000000000000000UL, 55 0x0000000000000c21UL, 0x0000000000000000UL, 56 0x0000000000000d21UL, 0x0000000000000000UL, 57 0x0000000000000e21UL, 0x0000000000000000UL, 58 0x0000000000000f21UL, 0x0000000000000000UL, 59 0x0000000000001021UL, 0x0000000000000000UL, 60 0x0000000000001121UL, 0x0000000000000000UL, 61 0x0000000000000001UL, 0x0000000000000000UL, > 62 0xdeadbeefcafebabeUL, 0x0000000000000010UL, 63 0xdeadbeefcafebabeUL, 0x0000000000000020UL, 64 0xdeadbeefcafebabeUL, 0x0000000000000030UL, 65 0xdeadbeefcafebabeUL, 0x0000000000000040UL, 66 0xdeadbeefcafebabeUL, 0x0000000000000050UL, 67 0xdeadbeefcafebabeUL, 0x0000000000000060UL, 68 0xdeadbeefcafebabeUL, 0x0000000000000070UL, 69 0xdeadbeefcafebabeUL, 0x0000000000000080UL, 70 0xdeadbeefcafebabeUL, 0x0000000000000090UL, 71 0xdeadbeefcafebabeUL, 0x00000000000000a0UL, 72 0xdeadbeefcafebabeUL, 0x00000000000000b0UL, 73 0xdeadbeefcafebabeUL, 0x00000000000000c0UL, 74 0xdeadbeefcafebabeUL, 0x00000000000000d0UL, 75 0xdeadbeefcafebabeUL, 0x00000000000000e0UL, 76 0xdeadbeefcafebabeUL, 0x00000000000000f0UL, 77 0xdeadbeefcafebabeUL, 0x0000000000000100UL, 78 0xdeadbeefcafebabeUL, 0x0000000000000110UL, 79 0xdeadbeefcafebabeUL, 0x0000000000000001UL, 80 0x000000000001beefUL, 0x0000000000000000UL, 81 0x000000000002beefUL, 0x0000000000000000UL, 82 0x000000000003beefUL, 0x0000000000000000UL, 83 0x000000000004beefUL, 0x0000000000000000UL, 84 0x000000000005beefUL, 0x0000000000000000UL, 85 0x000000000006beefUL, 0x0000000000000000UL, 86 0x000000000007beefUL, 0x0000000000000000UL, 87 0x000000000008beefUL, 0x0000000000000000UL, 88 0x000000000009beefUL, 0x0000000000000000UL, 89 0x00000000000abeefUL, 0x0000000000000000UL, 90 0x00000000000bbeefUL, 0x0000000000000000UL, 91 0x00000000000000efUL, 0x0000000000000000UL, 92 0x0000000000001000UL, 0x0000000000000000UL, 93 0x0000000000001001UL, 0x0000000000000000UL, 94 0x0000000000001002UL, 0x0000000000000000UL, 95 0x0000000000001003UL, 0x0000000000000000UL, 96 0x0000000000001004UL, 0x0000000000000000UL, 97 0x0000000000001005UL, 0x0000000000000000UL, 98 0x0000000000001006UL, 0x0000000000000000UL, 99 0x0000000000001007UL, 0x0000000000000000UL, 100 0x0000000000001008UL, 0x0000000000000000UL, 101 0x0000000000001009UL, 0x0000000000000000UL, 102 0x000000000000100aUL, 0x0000000000000000UL, 103 0x000000000000100bUL, 0x0000000000000000UL, 104 0x000000000000100cUL, 0x0000000000000000UL, 105 0x000000000000100dUL, 0x0000000000000000UL, 106 0x000000000000100eUL, 0x0000000000000000UL, 107 0x000000000000100fUL, 0x0000000000000000UL, 108 }; 109 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
