Hi Suren, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-change-vma_start_read-to-fail-to-lock-a-detached-VMA/20230621-075833 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230620235726.3873043-3-surenb%40google.com patch subject: [PATCH 3/3] mm: check for VMA being detached before destroying it config: sparc-randconfig-r022-20230620 (https://download.01.org/0day-ci/archive/20230621/202306211345.Xt94CVTt-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230621/202306211345.Xt94CVTt-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> | Closes: https://lore.kernel.org/oe-kbuild-all/202306211345.Xt94CVTt-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/sound/pcm.h:15, from sound/drivers/aloop.c:27: include/linux/mm.h: In function 'vma_init': include/linux/mm.h:753:12: error: 'struct vm_area_struct' has no member named 'detached' 753 | vma->detached = true; | ^~ In file included from include/linux/init.h:5, from sound/drivers/aloop.c:18: sound/drivers/aloop.c: At top level: >> include/linux/build_bug.h:16:51: error: bit-field '<anonymous>' width not an integer constant 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/compiler.h:231:33: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 231 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) | ^~~~~~~~~~~~~~~~~ include/linux/kernel.h:56:59: note: in expansion of macro '__must_be_array' 56 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) | ^~~~~~~~~~~~~~~ include/linux/moduleparam.h:517:20: note: in expansion of macro 'ARRAY_SIZE' 517 | = { .max = ARRAY_SIZE(array), .num = nump, \ | ^~~~~~~~~~ include/linux/moduleparam.h:501:9: note: in expansion of macro 'module_param_array_named' 501 | module_param_array_named(name, name, type, nump, perm) | ^~~~~~~~~~~~~~~~~~~~~~~~ sound/drivers/aloop.c:46:1: note: in expansion of macro 'module_param_array' 46 | module_param_array(index, int, NULL, 0444); | ^~~~~~~~~~~~~~~~~~ sound/drivers/aloop.c:39:12: warning: 'index' defined but not used [-Wunused-variable] 39 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | ^~~~~ -- In file included from include/sound/pcm.h:15, from sound/drivers/dummy.c:20: include/linux/mm.h: In function 'vma_init': include/linux/mm.h:753:12: error: 'struct vm_area_struct' has no member named 'detached' 753 | vma->detached = true; | ^~ In file included from include/linux/init.h:5, from sound/drivers/dummy.c:7: sound/drivers/dummy.c: At top level: >> include/linux/build_bug.h:16:51: error: bit-field '<anonymous>' width not an integer constant 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) | ^ include/linux/compiler.h:231:33: note: in expansion of macro 'BUILD_BUG_ON_ZERO' 231 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) | ^~~~~~~~~~~~~~~~~ include/linux/kernel.h:56:59: note: in expansion of macro '__must_be_array' 56 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) | ^~~~~~~~~~~~~~~ include/linux/moduleparam.h:517:20: note: in expansion of macro 'ARRAY_SIZE' 517 | = { .max = ARRAY_SIZE(array), .num = nump, \ | ^~~~~~~~~~ include/linux/moduleparam.h:501:9: note: in expansion of macro 'module_param_array_named' 501 | module_param_array_named(name, name, type, nump, perm) | ^~~~~~~~~~~~~~~~~~~~~~~~ sound/drivers/dummy.c:62:1: note: in expansion of macro 'module_param_array' 62 | module_param_array(index, int, NULL, 0444); | ^~~~~~~~~~~~~~~~~~ sound/drivers/dummy.c:48:12: warning: 'index' defined but not used [-Wunused-variable] 48 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | ^~~~~ vim +16 include/linux/build_bug.h bc6245e5efd70c Ian Abbott 2017-07-10 6 bc6245e5efd70c Ian Abbott 2017-07-10 7 #ifdef __CHECKER__ bc6245e5efd70c Ian Abbott 2017-07-10 8 #define BUILD_BUG_ON_ZERO(e) (0) bc6245e5efd70c Ian Abbott 2017-07-10 9 #else /* __CHECKER__ */ bc6245e5efd70c Ian Abbott 2017-07-10 10 /* bc6245e5efd70c Ian Abbott 2017-07-10 11 * Force a compilation error if condition is true, but also produce a 8788994376d84d Rikard Falkeborn 2019-12-04 12 * result (of value 0 and type int), so the expression can be used bc6245e5efd70c Ian Abbott 2017-07-10 13 * e.g. in a structure initializer (or where-ever else comma expressions bc6245e5efd70c Ian Abbott 2017-07-10 14 * aren't permitted). bc6245e5efd70c Ian Abbott 2017-07-10 15 */ 8788994376d84d Rikard Falkeborn 2019-12-04 @16 #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) 527edbc18a70e7 Masahiro Yamada 2019-01-03 17 #endif /* __CHECKER__ */ 527edbc18a70e7 Masahiro Yamada 2019-01-03 18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
