Hi Steven, kernel test robot noticed the following build errors:
[auto build test ERROR on v7.2] [also build test ERROR on next-20260819] [cannot apply to trace/for-next linus/master] [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/Steven-Rostedt/tracefs-Add-read-only-eventfs-filesystem-at-sys-kernel-events/20260810-160708 base: v7.2 patch link: https://lore.kernel.org/r/20260810160708.3460a2fd%40gandalf.local.home patch subject: [PATCH v3] tracefs: Add read-only eventfs filesystem at /sys/kernel/events config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20260820/[email protected]/config) compiler: powerpc64-linux-gcc (GCC) 16.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260820/[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 errors (new ones prefixed by >>): fs/tracefs/event_inode.c: In function 'eventfs_ro_fill_super': >> fs/tracefs/event_inode.c:38:23: error: 'EVENTFS_SUPER_MAGIC' undeclared >> (first use in this function) 38 | sb->s_magic = EVENTFS_SUPER_MAGIC; | ^~~~~~~~~~~~~~~~~~~ fs/tracefs/event_inode.c:38:23: note: each undeclared identifier is reported only once for each function it appears in vim +/EVENTFS_SUPER_MAGIC +38 fs/tracefs/event_inode.c 30 31 static int eventfs_ro_fill_super(struct super_block *sb, struct fs_context *fc) 32 { 33 struct inode *inode; 34 struct dentry *root; 35 36 sb->s_blocksize = PAGE_SIZE; 37 sb->s_blocksize_bits = PAGE_SHIFT; > 38 sb->s_magic = EVENTFS_SUPER_MAGIC; 39 sb->s_op = &eventfs_ro_super_operations; 40 sb->s_time_gran = 1; 41 sb->s_flags |= SB_RDONLY; 42 43 inode = new_inode(sb); 44 if (!inode) 45 return -ENOMEM; 46 47 inode->i_ino = 1; 48 inode->i_mode = S_IFDIR | 0555; 49 simple_inode_init_ts(inode); 50 inode->i_op = &simple_dir_inode_operations; 51 inode->i_fop = &simple_dir_operations; 52 set_nlink(inode, 2); 53 54 set_default_d_op(sb, &tracefs_dentry_operations); 55 56 root = d_make_root(inode); 57 if (!root) 58 return -ENOMEM; 59 60 sb->s_root = root; 61 62 return 0; 63 } 64 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
