tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4230ea146b1e64628f11e44290bb4008e391bc24 commit: 5790b1fb3d672d9a1fe3881a7181dfdbe741568f [8592/13518] eventfs: Remove eventfs_file and just use eventfs_inode config: hexagon-randconfig-r001-20230603 (https://download.01.org/0day-ci/archive/20231020/202310200550.p46bE4w7-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231020/202310200550.p46bE4w7-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/202310200550.p46bE4w7-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> fs/tracefs/event_inode.c:734:10: error: casting from randomized structure pointer type 'struct dentry *' to 'struct eventfs_inode *' return (struct eventfs_inode *)dentry; ^ fs/tracefs/event_inode.c:909:6: warning: no previous prototype for function 'eventfs_remove_events_dir' [-Wmissing-prototypes] void eventfs_remove_events_dir(struct dentry *dentry) ^ fs/tracefs/event_inode.c:909:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void eventfs_remove_events_dir(struct dentry *dentry) ^ static 1 warning and 1 error generated. vim +734 fs/tracefs/event_inode.c 710 711 /** 712 * eventfs_create_events_dir - create the top level events directory 713 * @name: The name of the top level directory to create. 714 * @parent: Parent dentry for this file in the tracefs directory. 715 * @entries: A list of entries that represent the files under this directory 716 * @size: The number of @entries 717 * @data: The default data to pass to the files (an entry may override it). 718 * 719 * This function creates the top of the trace event directory. 720 */ 721 struct eventfs_inode *eventfs_create_events_dir(const char *name, struct dentry *parent, 722 const struct eventfs_entry *entries, 723 int size, void *data) 724 { 725 struct dentry *dentry = tracefs_start_creating(name, parent); 726 struct eventfs_inode *ei; 727 struct tracefs_inode *ti; 728 struct inode *inode; 729 730 if (security_locked_down(LOCKDOWN_TRACEFS)) 731 return NULL; 732 733 if (IS_ERR(dentry)) > 734 return (struct eventfs_inode *)dentry; 735 736 ei = kzalloc(sizeof(*ei), GFP_KERNEL); 737 if (!ei) 738 goto fail; 739 740 inode = tracefs_get_inode(dentry->d_sb); 741 if (unlikely(!inode)) 742 goto fail; 743 744 if (size) { 745 ei->d_children = kzalloc(sizeof(*ei->d_children) * size, GFP_KERNEL); 746 if (!ei->d_children) 747 goto fail; 748 } 749 750 ei->dentry = dentry; 751 ei->entries = entries; 752 ei->nr_entries = size; 753 ei->data = data; 754 ei->name = kstrdup_const(name, GFP_KERNEL); 755 if (!ei->name) 756 goto fail; 757 758 INIT_LIST_HEAD(&ei->children); 759 INIT_LIST_HEAD(&ei->list); 760 761 ti = get_tracefs(inode); 762 ti->flags |= TRACEFS_EVENT_INODE | TRACEFS_EVENT_TOP_INODE; 763 ti->private = ei; 764 765 inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO; 766 inode->i_op = &eventfs_root_dir_inode_operations; 767 inode->i_fop = &eventfs_file_operations; 768 769 /* directory inodes start off with i_nlink == 2 (for "." entry) */ 770 inc_nlink(inode); 771 d_instantiate(dentry, inode); 772 inc_nlink(dentry->d_parent->d_inode); 773 fsnotify_mkdir(dentry->d_parent->d_inode, dentry); 774 tracefs_end_creating(dentry); 775 776 /* Will call dput when the directory is removed */ 777 dget(dentry); 778 779 return ei; 780 781 fail: 782 kfree(ei->d_children); 783 kfree(ei); 784 tracefs_failed_creating(dentry); 785 return ERR_PTR(-ENOMEM); 786 } 787 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
