tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.tmp2 head: adcceb5eb7aee38e4a9c15bdf599655f0e1b1324 commit: 6601f8679da18dd112f11e39486b163d4ad976e2 [291/364] sched/headers, fs: Simplify <linux/fs.h> header dependencies config: x86_64-kexec (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=66... git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch --no-tags tip tmp.tmp2 git checkout 6601f8679da18dd112f11e39486b163d4ad976e2 # save the attached .config to linux build tree make W=1 ARCH=x86_64 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 >>): In file included from include/linux/xarray.h:16, from include/linux/fs.h:12, from lib/test_sysctl.c:31: include/linux/rcuwait.h: In function 'rcuwait_active': include/linux/rcupdate.h:364:9: error: dereferencing pointer to incomplete type 'struct task_struct' 364 | typeof(*p) *_________p1 = (typeof(*p) *__force)READ_ONCE(p); \ | ^ include/linux/rcupdate.h:474:31: note: in expansion of macro '__rcu_access_pointer' 474 | #define rcu_access_pointer(p) __rcu_access_pointer((p), __rcu) | ^~~~~~~~~~~~~~~~~~~~ include/linux/rcuwait.h:33:11: note: in expansion of macro 'rcu_access_pointer' 33 | return !!rcu_access_pointer(w->task); | ^~~~~~~~~~~~~~~~~~ lib/test_sysctl.c: At top level: 74 | static struct ctl_table test_table[] = { | ^~~~~~~~~~ 76 | .procname = "int_0001", | ^ lib/test_sysctl.c:76:3: note: (near initialization for 'test_table') lib/test_sysctl.c:77:3: error: field name not in record or union initializer 77 | .data = &test_data.int_0001, | ^ lib/test_sysctl.c:77:3: note: (near initialization for 'test_table') lib/test_sysctl.c:78:3: error: field name not in record or union initializer 78 | .maxlen = sizeof(int), | ^ lib/test_sysctl.c:78:3: note: (near initialization for 'test_table') lib/test_sysctl.c:79:3: error: field name not in record or union initializer 79 | .mode = 0644, | ^ lib/test_sysctl.c:79:3: note: (near initialization for 'test_table') lib/test_sysctl.c:80:3: error: field name not in record or union initializer 80 | .proc_handler = proc_dointvec_minmax, | ^ lib/test_sysctl.c:80:3: note: (near initialization for 'test_table') 80 | .proc_handler = proc_dointvec_minmax, | ^~~~~~~~~~~~~~~~~~~~ lib/test_sysctl.c:81:3: error: field name not in record or union initializer 81 | .extra1 = &i_zero, | ^ lib/test_sysctl.c:81:3: note: (near initialization for 'test_table') lib/test_sysctl.c:82:3: error: field name not in record or union initializer 82 | .extra2 = &i_one_hundred, | ^ lib/test_sysctl.c:82:3: note: (near initialization for 'test_table') lib/test_sysctl.c:85:3: error: field name not in record or union initializer 85 | .procname = "int_0002", | ^ lib/test_sysctl.c:85:3: note: (near initialization for 'test_table') lib/test_sysctl.c:86:3: error: field name not in record or union initializer 86 | .data = &test_data.int_0002, | ^ lib/test_sysctl.c:86:3: note: (near initialization for 'test_table') lib/test_sysctl.c:87:3: error: field name not in record or union initializer 87 | .maxlen = sizeof(int), | ^ lib/test_sysctl.c:87:3: note: (near initialization for 'test_table') lib/test_sysctl.c:88:3: error: field name not in record or union initializer 88 | .mode = 0644, | ^ lib/test_sysctl.c:88:3: note: (near initialization for 'test_table') lib/test_sysctl.c:89:3: error: field name not in record or union initializer 89 | .proc_handler = proc_dointvec, | ^ lib/test_sysctl.c:89:3: note: (near initialization for 'test_table') 89 | .proc_handler = proc_dointvec, | ^~~~~~~~~~~~~ lib/test_sysctl.c:92:3: error: field name not in record or union initializer 92 | .procname = "int_0003", | ^ lib/test_sysctl.c:92:3: note: (near initialization for 'test_table') lib/test_sysctl.c:93:3: error: field name not in record or union initializer 93 | .data = &test_data.int_0003, | ^ lib/test_sysctl.c:93:3: note: (near initialization for 'test_table') lib/test_sysctl.c:94:3: error: field name not in record or union initializer 94 | .maxlen = sizeof(test_data.int_0003), | ^ lib/test_sysctl.c:94:3: note: (near initialization for 'test_table') lib/test_sysctl.c:95:3: error: field name not in record or union initializer 95 | .mode = 0644, | ^ lib/test_sysctl.c:95:3: note: (near initialization for 'test_table') lib/test_sysctl.c:96:3: error: field name not in record or union initializer 96 | .proc_handler = proc_dointvec, | ^ lib/test_sysctl.c:96:3: note: (near initialization for 'test_table') lib/test_sysctl.c:99:3: error: field name not in record or union initializer 99 | .procname = "boot_int", | ^ lib/test_sysctl.c:99:3: note: (near initialization for 'test_table') lib/test_sysctl.c:100:3: error: field name not in record or union initializer 100 | .data = &test_data.boot_int, | ^ lib/test_sysctl.c:100:3: note: (near initialization for 'test_table') lib/test_sysctl.c:101:3: error: field name not in record or union initializer 101 | .maxlen = sizeof(test_data.boot_int), | ^ lib/test_sysctl.c:101:3: note: (near initialization for 'test_table') lib/test_sysctl.c:102:3: error: field name not in record or union initializer 102 | .mode = 0644, | ^ lib/test_sysctl.c:102:3: note: (near initialization for 'test_table') lib/test_sysctl.c:103:3: error: field name not in record or union initializer 103 | .proc_handler = proc_dointvec, | ^ lib/test_sysctl.c:103:3: note: (near initialization for 'test_table') lib/test_sysctl.c:104:3: error: field name not in record or union initializer 104 | .extra1 = SYSCTL_ZERO, | ^ lib/test_sysctl.c:104:3: note: (near initialization for 'test_table') 104 | .extra1 = SYSCTL_ZERO, | ^~~~~~~~~~~ lib/test_sysctl.c:105:3: error: field name not in record or union initializer 105 | .extra2 = SYSCTL_ONE, | ^ lib/test_sysctl.c:105:3: note: (near initialization for 'test_table') 105 | .extra2 = SYSCTL_ONE, | ^~~~~~~~~~ lib/test_sysctl.c:108:3: error: field name not in record or union initializer 108 | .procname = "uint_0001", | ^ lib/test_sysctl.c:108:3: note: (near initialization for 'test_table') lib/test_sysctl.c:109:3: error: field name not in record or union initializer 109 | .data = &test_data.uint_0001, | ^ lib/test_sysctl.c:109:3: note: (near initialization for 'test_table') lib/test_sysctl.c:110:3: error: field name not in record or union initializer 110 | .maxlen = sizeof(unsigned int), | ^ lib/test_sysctl.c:110:3: note: (near initialization for 'test_table') lib/test_sysctl.c:111:3: error: field name not in record or union initializer 111 | .mode = 0644, | ^ lib/test_sysctl.c:111:3: note: (near initialization for 'test_table') lib/test_sysctl.c:112:3: error: field name not in record or union initializer 112 | .proc_handler = proc_douintvec, | ^ lib/test_sysctl.c:112:3: note: (near initialization for 'test_table') 112 | .proc_handler = proc_douintvec, | ^~~~~~~~~~~~~~ lib/test_sysctl.c:115:3: error: field name not in record or union initializer 115 | .procname = "string_0001", | ^ lib/test_sysctl.c:115:3: note: (near initialization for 'test_table') lib/test_sysctl.c:116:3: error: field name not in record or union initializer 116 | .data = &test_data.string_0001, | ^ lib/test_sysctl.c:116:3: note: (near initialization for 'test_table') lib/test_sysctl.c:117:3: error: field name not in record or union initializer 117 | .maxlen = sizeof(test_data.string_0001), | ^ lib/test_sysctl.c:117:3: note: (near initialization for 'test_table') lib/test_sysctl.c:118:3: error: field name not in record or union initializer 118 | .mode = 0644, | ^ lib/test_sysctl.c:118:3: note: (near initialization for 'test_table') lib/test_sysctl.c:119:3: error: field name not in record or union initializer 119 | .proc_handler = proc_dostring, | ^ lib/test_sysctl.c:119:3: note: (near initialization for 'test_table') 119 | .proc_handler = proc_dostring, | ^~~~~~~~~~~~~ lib/test_sysctl.c:122:3: error: field name not in record or union initializer 122 | .procname = "bitmap_0001", | ^ lib/test_sysctl.c:122:3: note: (near initialization for 'test_table') lib/test_sysctl.c:123:3: error: field name not in record or union initializer 123 | .data = &test_data.bitmap_0001, | ^ lib/test_sysctl.c:123:3: note: (near initialization for 'test_table') lib/test_sysctl.c:124:3: error: field name not in record or union initializer 124 | .maxlen = SYSCTL_TEST_BITMAP_SIZE, | ^ lib/test_sysctl.c:124:3: note: (near initialization for 'test_table') lib/test_sysctl.c:125:3: error: field name not in record or union initializer 125 | .mode = 0644, | ^ lib/test_sysctl.c:125:3: note: (near initialization for 'test_table') lib/test_sysctl.c:126:3: error: field name not in record or union initializer 126 | .proc_handler = proc_do_large_bitmap, | ^ lib/test_sysctl.c:126:3: note: (near initialization for 'test_table') 126 | .proc_handler = proc_do_large_bitmap, | ^~~~~~~~~~~~~~~~~~~~ lib/test_sysctl.c:131:25: error: array type has incomplete element type 'struct ctl_table' 131 | static struct ctl_table test_sysctl_table[] = { | ^~~~~~~~~~~~~~~~~ lib/test_sysctl.c:133:3: error: field name not in record or union initializer 133 | .procname = "test_sysctl", | ^ lib/test_sysctl.c:133:3: note: (near initialization for 'test_sysctl_table') lib/test_sysctl.c:134:3: error: field name not in record or union initializer 134 | .maxlen = 0, | ^ lib/test_sysctl.c:134:3: note: (near initialization for 'test_sysctl_table') lib/test_sysctl.c:135:3: error: field name not in record or union initializer 135 | .mode = 0555, | ^ lib/test_sysctl.c:135:3: note: (near initialization for 'test_sysctl_table') lib/test_sysctl.c:136:3: error: field name not in record or union initializer 136 | .child = test_table, | ^ lib/test_sysctl.c:136:3: note: (near initialization for 'test_sysctl_table') lib/test_sysctl.c:141:25: error: array type has incomplete element type 'struct ctl_table' 141 | static struct ctl_table test_sysctl_root_table[] = { | ^~~~~~~~~~~~~~~~~~~~~~ lib/test_sysctl.c:143:3: error: field name not in record or union initializer 143 | .procname = "debug", | ^ lib/test_sysctl.c:143:3: note: (near initialization for 'test_sysctl_root_table') lib/test_sysctl.c:144:3: error: field name not in record or union initializer 144 | .maxlen = 0, | ^ lib/test_sysctl.c:144:3: note: (near initialization for 'test_sysctl_root_table') lib/test_sysctl.c:145:3: error: field name not in record or union initializer 145 | .mode = 0555, | ^ lib/test_sysctl.c:145:3: note: (near initialization for 'test_sysctl_root_table') lib/test_sysctl.c:146:3: error: field name not in record or union initializer 146 | .child = test_sysctl_table, | ^ lib/test_sysctl.c:146:3: note: (near initialization for 'test_sysctl_root_table') lib/test_sysctl.c: In function 'test_sysctl_init': 158 | test_sysctl_header = register_sysctl_table(test_sysctl_root_table); | ^~~~~~~~~~~~~~~~~~~~~ lib/test_sysctl.c: In function 'test_sysctl_exit': 171 | unregister_sysctl_table(test_sysctl_header); | ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/uaccess.h:11, from lib/test_sysctl.c:34: lib/test_sysctl.c: At top level: arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined 46 | static inline bool pagefault_disabled(void); | ^~~~~~~~~~~~~~~~~~ lib/test_sysctl.c:141:25: warning: 'test_sysctl_root_table' defined but not used [-Wunused-variable] 141 | static struct ctl_table test_sysctl_root_table[] = { | ^~~~~~~~~~~~~~~~~~~~~~ lib/test_sysctl.c:131:25: warning: 'test_sysctl_table' defined but not used [-Wunused-variable] 131 | static struct ctl_table test_sysctl_table[] = { | ^~~~~~~~~~~~~~~~~ lib/test_sysctl.c:74:25: warning: 'test_table' defined but not used [-Wunused-variable] 74 | static struct ctl_table test_table[] = { | ^~~~~~~~~~ cc1: some warnings being treated as errors vim +74 lib/test_sysctl.c 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 72 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 73 /* These are all under /proc/sys/debug/test_sysctl/ */ 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 @74 static struct ctl_table test_table[] = { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 75 { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 @76 .procname = "int_0001", 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 77 .data = &test_data.int_0001, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 78 .maxlen = sizeof(int), 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 79 .mode = 0644, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 @80 .proc_handler = proc_dointvec_minmax, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 81 .extra1 = &i_zero, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 82 .extra2 = &i_one_hundred, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 83 }, eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 84 { eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 85 .procname = "int_0002", eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 86 .data = &test_data.int_0002, eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 87 .maxlen = sizeof(int), eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 88 .mode = 0644, eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 @89 .proc_handler = proc_dointvec, eb965eda1cabf2 Luis R. Rodriguez 2017-07-12 90 }, 7c43a657a4bead Luis R. Rodriguez 2017-07-12 91 { 7c43a657a4bead Luis R. Rodriguez 2017-07-12 92 .procname = "int_0003", 7c43a657a4bead Luis R. Rodriguez 2017-07-12 93 .data = &test_data.int_0003, 7c43a657a4bead Luis R. Rodriguez 2017-07-12 94 .maxlen = sizeof(test_data.int_0003), 7c43a657a4bead Luis R. Rodriguez 2017-07-12 95 .mode = 0644, 7c43a657a4bead Luis R. Rodriguez 2017-07-12 96 .proc_handler = proc_dointvec, 7c43a657a4bead Luis R. Rodriguez 2017-07-12 97 }, 4f2f682d89d83f Vlastimil Babka 2020-06-07 98 { 4f2f682d89d83f Vlastimil Babka 2020-06-07 99 .procname = "boot_int", 4f2f682d89d83f Vlastimil Babka 2020-06-07 100 .data = &test_data.boot_int, 4f2f682d89d83f Vlastimil Babka 2020-06-07 101 .maxlen = sizeof(test_data.boot_int), 4f2f682d89d83f Vlastimil Babka 2020-06-07 102 .mode = 0644, 4f2f682d89d83f Vlastimil Babka 2020-06-07 103 .proc_handler = proc_dointvec, 4f2f682d89d83f Vlastimil Babka 2020-06-07 @104 .extra1 = SYSCTL_ZERO, 4f2f682d89d83f Vlastimil Babka 2020-06-07 @105 .extra2 = SYSCTL_ONE, 4f2f682d89d83f Vlastimil Babka 2020-06-07 106 }, 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 107 { 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 108 .procname = "uint_0001", 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 109 .data = &test_data.uint_0001, 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 110 .maxlen = sizeof(unsigned int), 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 111 .mode = 0644, 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 @112 .proc_handler = proc_douintvec, 2920fad3a5d394 Luis R. Rodriguez 2017-07-12 113 }, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 114 { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 115 .procname = "string_0001", 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 116 .data = &test_data.string_0001, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 117 .maxlen = sizeof(test_data.string_0001), 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 118 .mode = 0644, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 @119 .proc_handler = proc_dostring, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 120 }, 2ea622b887e744 Eric Sandeen 2019-05-14 121 { 2ea622b887e744 Eric Sandeen 2019-05-14 122 .procname = "bitmap_0001", 2ea622b887e744 Eric Sandeen 2019-05-14 123 .data = &test_data.bitmap_0001, 2ea622b887e744 Eric Sandeen 2019-05-14 124 .maxlen = SYSCTL_TEST_BITMAP_SIZE, 2ea622b887e744 Eric Sandeen 2019-05-14 125 .mode = 0644, 2ea622b887e744 Eric Sandeen 2019-05-14 @126 .proc_handler = proc_do_large_bitmap, 2ea622b887e744 Eric Sandeen 2019-05-14 127 }, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 128 { } 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 129 }; 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 130 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 131 static struct ctl_table test_sysctl_table[] = { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 132 { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 133 .procname = "test_sysctl", 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 134 .maxlen = 0, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 135 .mode = 0555, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 136 .child = test_table, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 137 }, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 138 { } 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 139 }; 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 140 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 141 static struct ctl_table test_sysctl_root_table[] = { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 142 { 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 143 .procname = "debug", 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 144 .maxlen = 0, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 145 .mode = 0555, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 146 .child = test_sysctl_table, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 147 }, 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 148 { } 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 149 }; 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 150 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 151 static struct ctl_table_header *test_sysctl_header; 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 152 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 153 static int __init test_sysctl_init(void) 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 154 { 2ea622b887e744 Eric Sandeen 2019-05-14 155 test_data.bitmap_0001 = kzalloc(SYSCTL_TEST_BITMAP_SIZE/8, GFP_KERNEL); 2ea622b887e744 Eric Sandeen 2019-05-14 156 if (!test_data.bitmap_0001) 2ea622b887e744 Eric Sandeen 2019-05-14 157 return -ENOMEM; 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 @158 test_sysctl_header = register_sysctl_table(test_sysctl_root_table); 2ea622b887e744 Eric Sandeen 2019-05-14 159 if (!test_sysctl_header) { 2ea622b887e744 Eric Sandeen 2019-05-14 160 kfree(test_data.bitmap_0001); 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 161 return -ENOMEM; 2ea622b887e744 Eric Sandeen 2019-05-14 162 } 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 163 return 0; 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 164 } 2f56f84511367c Masami Hiramatsu 2020-05-28 165 module_init(test_sysctl_init); 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 166 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 167 static void __exit test_sysctl_exit(void) 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 168 { 2ea622b887e744 Eric Sandeen 2019-05-14 169 kfree(test_data.bitmap_0001); 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 170 if (test_sysctl_header) 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 @171 unregister_sysctl_table(test_sysctl_header); 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 172 } 9308f2f9e7f055 Luis R. Rodriguez 2017-07-12 173 :::::: The code at line 74 was first introduced by commit :::::: 9308f2f9e7f055cf3934645ec622bb5259dc1c14 test_sysctl: add dedicated proc sysctl test driver :::::: TO: Luis R. Rodriguez <mcgrof(a)kernel.org&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org