tree: https://android.googlesource.com/kernel/common android-4.14-stable head: 8278cda5d9767db20d87f2d97e135534c43b07ae commit: b38636bf5933cdfc7490ed5bb0cec3893a646bab [2/5] ANDROID: Incremental fs: Add v2 feature flag config: i386-randconfig-c001-20201209 (attached as .config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android-4.14-stable git checkout b38636bf5933cdfc7490ed5bb0cec3893a646bab # save the attached .config to linux build tree make W=1 ARCH=i386 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/kobject.h:21:0, from include/linux/module.h:17, from fs/incfs/main.c:7: DECLARE_FEATURE_FLAG(corefs); ^ include/linux/sysfs.h:117:10: note: in definition of macro '__ATTR_RO' .show = _name##_show, \ ^~~~~ fs/incfs/main.c:38:36: note: in expansion of macro '_DECLARE_FEATURE_FLAG' #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) ^~~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:40:1: note: in expansion of macro 'DECLARE_FEATURE_FLAG' DECLARE_FEATURE_FLAG(corefs); ^~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:40:22: note: (near initialization for 'corefs_attr.show') DECLARE_FEATURE_FLAG(corefs); ^ include/linux/sysfs.h:117:10: note: in definition of macro '__ATTR_RO' .show = _name##_show, \ ^~~~~ fs/incfs/main.c:38:36: note: in expansion of macro '_DECLARE_FEATURE_FLAG' #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) ^~~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:40:1: note: in expansion of macro 'DECLARE_FEATURE_FLAG' DECLARE_FEATURE_FLAG(corefs); ^~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:41:22: error: initializer element is not constant DECLARE_FEATURE_FLAG(zstd); ^ include/linux/sysfs.h:117:10: note: in definition of macro '__ATTR_RO' .show = _name##_show, \ ^~~~~ fs/incfs/main.c:38:36: note: in expansion of macro '_DECLARE_FEATURE_FLAG' #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) ^~~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:41:1: note: in expansion of macro 'DECLARE_FEATURE_FLAG' DECLARE_FEATURE_FLAG(zstd); ^~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:41:22: note: (near initialization for 'zstd_attr.show') DECLARE_FEATURE_FLAG(zstd); ^ include/linux/sysfs.h:117:10: note: in definition of macro '__ATTR_RO' .show = _name##_show, \ ^~~~~ fs/incfs/main.c:38:36: note: in expansion of macro '_DECLARE_FEATURE_FLAG' #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) ^~~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:41:1: note: in expansion of macro 'DECLARE_FEATURE_FLAG' DECLARE_FEATURE_FLAG(zstd); ^~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:42:22: error: initializer element is not constant DECLARE_FEATURE_FLAG(v2); ^ include/linux/sysfs.h:117:10: note: in definition of macro '__ATTR_RO' .show = _name##_show, \ ^~~~~ fs/incfs/main.c:38:36: note: in expansion of macro '_DECLARE_FEATURE_FLAG' #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) ^~~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:42:1: note: in expansion of macro 'DECLARE_FEATURE_FLAG' DECLARE_FEATURE_FLAG(v2); ^~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:42:22: note: (near initialization for 'v2_attr.show') DECLARE_FEATURE_FLAG(v2); ^ include/linux/sysfs.h:117:10: note: in definition of macro '__ATTR_RO' .show = _name##_show, \ ^~~~~ fs/incfs/main.c:38:36: note: in expansion of macro '_DECLARE_FEATURE_FLAG' #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) ^~~~~~~~~~~~~~~~~~~~~ fs/incfs/main.c:42:1: note: in expansion of macro 'DECLARE_FEATURE_FLAG' DECLARE_FEATURE_FLAG(v2); ^~~~~~~~~~~~~~~~~~~~ vim +40 fs/incfs/main.c 8 9 #include <uapi/linux/incrementalfs.h> 10 11 #include "vfs.h" 12 13 #define INCFS_NODE_FEATURES "features" 14 15 static struct file_system_type incfs_fs_type = { 16 .owner = THIS_MODULE, 17 .name = INCFS_NAME, 18 .mount = incfs_mount_fs, 19 .kill_sb = incfs_kill_sb, 20 .fs_flags = 0 21 }; 22 23 static struct kobject *sysfs_root, *featurefs_root; 24 25 static ssize_t supported(struct kobject *kobj, 26 struct kobj_attribute *attr, char *buff) 27 { 28 return snprintf(buff, PAGE_SIZE, "supported\n"); 29 } 30 31 typedef ssize_t (*const attr_show)(struct kobject *kobj, 32 struct kobj_attribute *attr, char *buff); 33 34 #define _DECLARE_FEATURE_FLAG(name) \ 35 static attr_show name##_show = supported; \ 36 static struct kobj_attribute name##_attr = __ATTR_RO(name) 37 38 #define DECLARE_FEATURE_FLAG(name) _DECLARE_FEATURE_FLAG(name) 39 41 DECLARE_FEATURE_FLAG(zstd); 42 DECLARE_FEATURE_FLAG(v2); 43 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org