From 22098763a10d9c1340827fcf6edab66f153b27f0 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 13 Sep 2026 12:27:00 -0700 Subject: Merge tag 'trace-v7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Don't destroy user event fields when removal fails User event fields are destroyed before the event is removed from visibility. But that can fail leaving the still visible event with no fields. Move the destroying of the fields to after the event is successfully removed from visibility. - Initialize function graph state is fork before calling copy_exec_state() For non-CLONE_VM forks, copy_exec_state() allocates a new task_exec_state. If that allocation fails, ftrace_graph_exit_task() will free the tasks ret_stack pointer. Since that pointer is still using the parent's ret_stack, it mistakenly frees the parent's pointer too. Call ftrace_graph_init() on the task first which will NULL out the new tasks's ret_stack and if the copy fails, it will not free anything. - Remove FGRAPH_MAX_INDEX The macro FGRAPH_MAX_INDEX was added but never used. Remove it. - Save ent_size in function graph printing of nested functions The function graph tracer needs to look at the next event to see if the next event is the return of the current function entry. If it is, it prints a single line: ktime_get(); Otherwise it prints it like a nested function: tick_nohz_irq_exit() { ktime_get(); kcpustat_irq_exit(); } In order to look at the next event, it must save the current event so that it has the information to print from it. It saves the event in the iterator descriptor called "ent". What it doesn't save is the ent_size of the event which is now used to know if the function graph arguments are to be printed. The peek doesn't save the size so the size used happens to be that of the size of the last event that was seen. Save the entry event size in the iterator descriptor so that the correct size is used. - Fix several errors with freeing data in the histogram code The histogram code had a lot of leaked or or incorrect accounting when failures happen. Correct them. - Fix histogram regression of .percent and .graph modifiers Up until 6.3 histogram values could have "percent" or "graph" modifiers that changed how they were printed. But a change that added restricting histograms values from being strings, stack traces and other modifiers inadvertently prevented them from using the percent and graph modifiers, which were legal use cases for values. Put back the percent and graph modifiers. - Fix various typos in the comments - Set the trace_clock before initializing a histogram with clock argument The histogram API allows the user to specific which trace clock to use via a "clock=" string. The histogram is set up first before the clock is checked. If the passed in clock is not valid, it exits without fully fixing up the histogram leaving it on the list and a use-after-free can trigger. Update the clock argument first and if it fails then exit gracefully before the histogram trigger is placed on any lists. - Restore :mod: trailer after parsing in ftrace_set_clr_event The function ftrace_set_clr_event() modifies the parse string and needs to put it back to what was passed in. It searches for ":mod:" via a strsep() but fails to put back the first ':' in the string. Add back the ':' in the passed in string. - Take trace_array reference when opening a tracer options file The options files are dynamically created and some tracers add their own options. When a tracer adds their own list of options, the trace_array holding them has an array to hold the list of options for each tracer. This array increases in size via a krealloc(), and the new entry gets a newly allocated array to hold the options of the new tracer being added. The element in each entry of the tracer's option array holds a pointer back to the trace_array, a pointer to the tracer it is associated to, a pointer to the flags of the option. The issue is that these arrays are freed when the trace_array is freed when its instance it represents is removed from the instances directory. There's a race that an open of one of these options files can happen when the instance is being removed. Add a new helper function to be called by the open function of the options file to iterate all existing trace_arrays under a lock and find the one that has the given option element in one of it's tracer arrays. If found, then update the associated trace_array's reference counter to keep it from being freed. If not found, have the open call return -ENODEV. - Disable interrupts when acquiring the lock in rb_wake_up_waiters() The function rb_wake_up_waiters() assumes it will be called in interrupt context and does not disable irqs when taking cpu_buffer->reader_lock, which can be called in hard interrupt context. The issue is in PREEMPT_RT, this function is called in thread context leaving this lock open to a deadlock. Take the lock with interrupts disabled. - Use rcu_assign_pointer() for tmp_ops filter hash The tmp_ops used in update_ftrace_direct_mod() assigns its filter_hash field directly, but that field is annotated as __rcu and sparse complains. Assign it with rcu_assign_pointer() - Fix use-after-free in enable_trigger_private_data_free() The trace_event_call is accessed through the event_trigger_data's trace_event_file pointer to put the trace_event_call on freeing. The issue is that the trace_event_file data may have been freed already causing a use-after-free. Add a field to the event_trigger_data that points directly to the trace_event_call so that it can decrement its reference directly without needing to go through the trace_event_file. - Fix accounting of buffer data remote headers trace_buffer_desc_size() and trace_remote_alloc_buffer() undercount the number of pages is needed for the asked for size as it doesn't take into account the meta data on each page. Add a helper function to do the calculation properly and use that in these functions. - Catch nr_page_va overflow in ring_buffer_desc sizing The number of pages per remote ring buffer is capped by ring_buffer_desc::nr_page_va (32 bits). A buffer_size large enough to overflow that field would silently allocate a descriptor smaller than what was asked for. - Do not resize the subbuf order if any per_cpu buffer is disabled The mmapping of ring buffers disables resizing the subbuffers, but it is done per-cpu whereas the subbuf size change is done for all the per_cpu buffers under the buffer->mutex. It could change the size of some while the mapping is happening on others. Have the resize of the subbuf order check all the per_cpu buffers under the lock to see if any of them is disabled before starting and causing an inconsistency between buffers that are being mapped. * tag 'trace-v7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (25 commits) ring-buffer: Check resize_disabled before publishing the new subbuf order tracing/remotes: Catch nr_page_va overflow in ring_buffer_desc sizing tracing/remotes: Account for ring buffer page header in size calculation tracing: Don't dereference trace_event_file in deferred trigger free ftrace: Use rcu_assign_pointer() for tmp_ops filter hash ring-buffer: Acquire the lock with irqsave in rb_wake_up_waiters() tracing: Take trace_array reference when opening a tracer options file tracing: Fix ring_buffer_read_page_size() kernel-doc tracing: Restore :mod: trailer after parsing in ftrace_set_clr_event() tracing: Fix memory corruption from a "STACKTRACE" histogram key tracing: Fix memory corruption from the histogram stacktrace modifier tracing: Undo the registration when enabling the histogram trigger fails tracing: Take the reference before publishing the named histogram trigger tracing: Set the trace clock before registering the histogram trigger tracing: Fix typo "preceeded" in comment tracing: Fix typo "availabe" in comment tracing: Let histogram values keep the percent and graph modifiers tracing: Keep the entry count when the histogram stats allocation fails tracing: Free histogram the field rejected for a bad modifier tracing: Free histogram the var ref when its initialization fails ... --- drivers/android/binder_internal.h | 597 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 597 insertions(+) create mode 100644 drivers/android/binder_internal.h (limited to 'drivers/android/binder_internal.h') diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h new file mode 100644 index 000000000..342574bfd --- /dev/null +++ b/drivers/android/binder_internal.h @@ -0,0 +1,597 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_BINDER_INTERNAL_H +#define _LINUX_BINDER_INTERNAL_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "binder_alloc.h" +#include "dbitmap.h" + +struct binder_context { + struct binder_node *binder_context_mgr_node; + struct mutex context_mgr_node_lock; + kuid_t binder_context_mgr_uid; + const char *name; +}; + +/** + * struct binder_device - information about a binder device node + * @hlist: list of binder devices + * @miscdev: information about a binder character device node + * @context: binder context information + * @binderfs_inode: This is the inode of the root dentry of the super block + * belonging to a binderfs mount. + */ +struct binder_device { + struct hlist_node hlist; + struct miscdevice miscdev; + struct binder_context context; + struct inode *binderfs_inode; + refcount_t ref; +}; + +/** + * binderfs_mount_opts - mount options for binderfs + * @max: maximum number of allocatable binderfs binder devices + * @stats_mode: enable binder stats in binderfs. + */ +struct binderfs_mount_opts { + int max; + int stats_mode; +}; + +/** + * binderfs_info - information about a binderfs mount + * @ipc_ns: The ipc namespace the binderfs mount belongs to. + * @control_dentry: This records the dentry of this binderfs mount + * binder-control device. + * @root_uid: uid that needs to be used when a new binder device is + * created. + * @root_gid: gid that needs to be used when a new binder device is + * created. + * @mount_opts: The mount options in use. + * @device_count: The current number of allocated binder devices. + * @proc_log_dir: Pointer to the directory dentry containing process-specific + * logs. + */ +struct binderfs_info { + struct ipc_namespace *ipc_ns; + struct dentry *control_dentry; + kuid_t root_uid; + kgid_t root_gid; + struct binderfs_mount_opts mount_opts; + int device_count; + struct dentry *proc_log_dir; +}; + +extern const struct file_operations binder_fops; + +extern char *binder_devices_param; + +#ifdef CONFIG_ANDROID_BINDERFS +extern bool is_binderfs_device(const struct inode *inode); +extern struct dentry *binderfs_create_file(struct dentry *dir, const char *name, + const struct file_operations *fops, + void *data); +#else +static inline bool is_binderfs_device(const struct inode *inode) +{ + return false; +} +static inline struct dentry *binderfs_create_file(struct dentry *dir, + const char *name, + const struct file_operations *fops, + void *data) +{ + return NULL; +} +#endif + +#ifdef CONFIG_ANDROID_BINDERFS +extern int __init init_binderfs(void); +#else +static inline int __init init_binderfs(void) +{ + return 0; +} +#endif + +struct binder_debugfs_entry { + const char *name; + umode_t mode; + const struct file_operations *fops; + void *data; +}; + +extern const struct binder_debugfs_entry binder_debugfs_entries[]; + +#define binder_for_each_debugfs_entry(entry) \ + for ((entry) = binder_debugfs_entries; \ + (entry)->name; \ + (entry)++) + +enum binder_stat_types { + BINDER_STAT_PROC, + BINDER_STAT_THREAD, + BINDER_STAT_NODE, + BINDER_STAT_REF, + BINDER_STAT_DEATH, + BINDER_STAT_TRANSACTION, + BINDER_STAT_TRANSACTION_COMPLETE, + BINDER_STAT_FREEZE, + BINDER_STAT_COUNT +}; + +struct binder_stats { + atomic_t br[_IOC_NR(BR_CLEAR_FREEZE_NOTIFICATION_DONE) + 1]; + atomic_t bc[_IOC_NR(BC_FREEZE_NOTIFICATION_DONE) + 1]; + atomic_t obj_created[BINDER_STAT_COUNT]; + atomic_t obj_deleted[BINDER_STAT_COUNT]; +}; + +/** + * struct binder_work - work enqueued on a worklist + * @entry: node enqueued on list + * @type: type of work to be performed + * + * There are separate work lists for proc, thread, and node (async). + */ +struct binder_work { + struct list_head entry; + + enum binder_work_type { + BINDER_WORK_TRANSACTION = 1, + BINDER_WORK_TRANSACTION_COMPLETE, + BINDER_WORK_TRANSACTION_PENDING, + BINDER_WORK_TRANSACTION_ONEWAY_SPAM_SUSPECT, + BINDER_WORK_RETURN_ERROR, + BINDER_WORK_NODE, + BINDER_WORK_DEAD_BINDER, + BINDER_WORK_DEAD_BINDER_AND_CLEAR, + BINDER_WORK_CLEAR_DEATH_NOTIFICATION, + BINDER_WORK_FROZEN_BINDER, + BINDER_WORK_CLEAR_FREEZE_NOTIFICATION, + } type; +}; + +struct binder_error { + struct binder_work work; + uint32_t cmd; +}; + +/** + * struct binder_node - binder node bookkeeping + * @debug_id: unique ID for debugging + * (invariant after initialized) + * @lock: lock for node fields + * @work: worklist element for node work + * (protected by @proc->inner_lock) + * @rb_node: element for proc->nodes tree + * (protected by @proc->inner_lock) + * @dead_node: element for binder_dead_nodes list + * (protected by binder_dead_nodes_lock) + * @proc: binder_proc that owns this node + * (invariant after initialized) + * @refs: list of references on this node + * (protected by @lock) + * @internal_strong_refs: used to take strong references when + * initiating a transaction + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @local_weak_refs: weak user refs from local process + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @local_strong_refs: strong user refs from local process + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @tmp_refs: temporary kernel refs + * (protected by @proc->inner_lock while @proc + * is valid, and by binder_dead_nodes_lock + * if @proc is NULL. During inc/dec and node release + * it is also protected by @lock to provide safety + * as the node dies and @proc becomes NULL) + * @ptr: userspace pointer for node + * (invariant, no lock needed) + * @cookie: userspace cookie for node + * (invariant, no lock needed) + * @has_strong_ref: userspace notified of strong ref + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @pending_strong_ref: userspace has acked notification of strong ref + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @has_weak_ref: userspace notified of weak ref + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @pending_weak_ref: userspace has acked notification of weak ref + * (protected by @proc->inner_lock if @proc + * and by @lock) + * @has_async_transaction: async transaction to node in progress + * (protected by @lock) + * @accept_fds: file descriptor operations supported for node + * (invariant after initialized) + * @min_priority: minimum scheduling priority + * (invariant after initialized) + * @txn_security_ctx: require sender's security context + * (invariant after initialized) + * @async_todo: list of async work items + * (protected by @proc->inner_lock) + * + * Bookkeeping structure for binder nodes. + */ +struct binder_node { + int debug_id; + spinlock_t lock; + struct binder_work work; + union { + struct rb_node rb_node; + struct hlist_node dead_node; + }; + struct binder_proc *proc; + struct hlist_head refs; + int internal_strong_refs; + int local_weak_refs; + int local_strong_refs; + int tmp_refs; + binder_uintptr_t ptr; + binder_uintptr_t cookie; + struct { + /* + * bitfield elements protected by + * proc inner_lock + */ + u8 has_strong_ref:1; + u8 pending_strong_ref:1; + u8 has_weak_ref:1; + u8 pending_weak_ref:1; + }; + struct { + /* + * invariant after initialization + */ + u8 accept_fds:1; + u8 txn_security_ctx:1; + u8 min_priority; + }; + bool has_async_transaction; + struct list_head async_todo; +}; + +struct binder_ref_death { + /** + * @work: worklist element for death notifications + * (protected by inner_lock of the proc that + * this ref belongs to) + */ + struct binder_work work; + binder_uintptr_t cookie; +}; + +struct binder_ref_freeze { + struct binder_work work; + binder_uintptr_t cookie; + bool is_frozen:1; + bool sent:1; + bool resend:1; +}; + +/** + * struct binder_ref_data - binder_ref counts and id + * @debug_id: unique ID for the ref + * @desc: unique userspace handle for ref + * @strong: strong ref count (debugging only if not locked) + * @weak: weak ref count (debugging only if not locked) + * + * Structure to hold ref count and ref id information. Since + * the actual ref can only be accessed with a lock, this structure + * is used to return information about the ref to callers of + * ref inc/dec functions. + */ +struct binder_ref_data { + int debug_id; + uint32_t desc; + int strong; + int weak; +}; + +/** + * struct binder_ref - struct to track references on nodes + * @data: binder_ref_data containing id, handle, and current refcounts + * @rb_node_desc: node for lookup by @data.desc in proc's rb_tree + * @rb_node_node: node for lookup by @node in proc's rb_tree + * @node_entry: list entry for node->refs list in target node + * (protected by @node->lock) + * @proc: binder_proc containing ref + * @node: binder_node of target node. When cleaning up a + * ref for deletion in binder_cleanup_ref, a non-NULL + * @node indicates the node must be freed + * @death: pointer to death notification (ref_death) if requested + * (protected by @node->lock) + * @freeze: pointer to freeze notification (ref_freeze) if requested + * (protected by @node->lock) + * + * Structure to track references from procA to target node (on procB). This + * structure is unsafe to access without holding @proc->outer_lock. + */ +struct binder_ref { + /* Lookups needed: */ + /* node + proc => ref (transaction) */ + /* desc + proc => ref (transaction, inc/dec ref) */ + /* node => refs + procs (proc exit) */ + struct binder_ref_data data; + struct rb_node rb_node_desc; + struct rb_node rb_node_node; + struct hlist_node node_entry; + struct binder_proc *proc; + struct binder_node *node; + struct binder_ref_death *death; + struct binder_ref_freeze *freeze; +}; + +/** + * struct binder_proc - binder process bookkeeping + * @proc_node: element for binder_procs list + * @threads: rbtree of binder_threads in this proc + * (protected by @inner_lock) + * @nodes: rbtree of binder nodes associated with + * this proc ordered by node->ptr + * (protected by @inner_lock) + * @refs_by_desc: rbtree of refs ordered by ref->desc + * (protected by @outer_lock) + * @refs_by_node: rbtree of refs ordered by ref->node + * (protected by @outer_lock) + * @waiting_threads: threads currently waiting for proc work + * (protected by @inner_lock) + * @pid PID of group_leader of process + * (invariant after initialized) + * @tsk task_struct for group_leader of process + * (invariant after initialized) + * @cred struct cred associated with the `struct file` + * in binder_open() + * (invariant after initialized) + * @deferred_work_node: element for binder_deferred_list + * (protected by binder_deferred_lock) + * @deferred_work: bitmap of deferred work to perform + * (protected by binder_deferred_lock) + * @outstanding_txns: number of transactions to be transmitted before + * processes in freeze_wait are woken up + * (protected by @inner_lock) + * @is_dead: process is dead and awaiting free + * when outstanding transactions are cleaned up + * (protected by @inner_lock) + * @is_frozen: process is frozen and unable to service + * binder transactions + * (protected by @inner_lock) + * @sync_recv: process received sync transactions since last frozen + * bit 0: received sync transaction after being frozen + * bit 1: new pending sync transaction during freezing + * (protected by @inner_lock) + * @async_recv: process received async transactions since last frozen + * (protected by @inner_lock) + * @freeze_wait: waitqueue of processes waiting for all outstanding + * transactions to be processed + * (protected by @inner_lock) + * @dmap dbitmap to manage available reference descriptors + * (protected by @outer_lock) + * @todo: list of work for this process + * (protected by @inner_lock) + * @stats: per-process binder statistics + * (atomics, no lock needed) + * @delivered_death: list of delivered death notification + * (protected by @inner_lock) + * @delivered_freeze: list of delivered freeze notification + * (protected by @inner_lock) + * @max_threads: cap on number of binder threads + * (protected by @inner_lock) + * @requested_threads: number of binder threads requested but not + * yet started. In current implementation, can + * only be 0 or 1. + * (protected by @inner_lock) + * @requested_threads_started: number binder threads started + * (protected by @inner_lock) + * @tmp_ref: temporary reference to indicate proc is in use + * (protected by @inner_lock) + * @default_priority: default scheduler priority + * (invariant after initialized) + * @debugfs_entry: debugfs node + * @alloc: binder allocator bookkeeping + * @context: binder_context for this proc + * (invariant after initialized) + * @inner_lock: can nest under outer_lock and/or node lock + * @outer_lock: no nesting under innor or node lock + * Lock order: 1) outer, 2) node, 3) inner + * @binderfs_entry: process-specific binderfs log file + * @oneway_spam_detection_enabled: process enabled oneway spam detection + * or not + * + * Bookkeeping structure for binder processes + */ +struct binder_proc { + struct hlist_node proc_node; + struct rb_root threads; + struct rb_root nodes; + struct rb_root refs_by_desc; + struct rb_root refs_by_node; + struct list_head waiting_threads; + int pid; + struct task_struct *tsk; + const struct cred *cred; + struct hlist_node deferred_work_node; + int deferred_work; + int outstanding_txns; + bool is_dead; + bool is_frozen; + bool sync_recv; + bool async_recv; + wait_queue_head_t freeze_wait; + struct dbitmap dmap; + struct list_head todo; + struct binder_stats stats; + struct list_head delivered_death; + struct list_head delivered_freeze; + u32 max_threads; + int requested_threads; + int requested_threads_started; + int tmp_ref; + long default_priority; + struct dentry *debugfs_entry; + struct binder_alloc alloc; + struct binder_context *context; + spinlock_t inner_lock; + spinlock_t outer_lock; + struct dentry *binderfs_entry; + bool oneway_spam_detection_enabled; +}; + +/** + * struct binder_thread - binder thread bookkeeping + * @proc: binder process for this thread + * (invariant after initialization) + * @rb_node: element for proc->threads rbtree + * (protected by @proc->inner_lock) + * @waiting_thread_node: element for @proc->waiting_threads list + * (protected by @proc->inner_lock) + * @pid: PID for this thread + * (invariant after initialization) + * @looper: bitmap of looping state + * (only accessed by this thread) + * @looper_needs_return: looping thread needs to exit driver + * (no lock needed) + * @transaction_stack: stack of in-progress transactions for this thread + * (protected by @proc->inner_lock) + * @todo: list of work to do for this thread + * (protected by @proc->inner_lock) + * @process_todo: whether work in @todo should be processed + * (protected by @proc->inner_lock) + * @return_error: transaction errors reported by this thread + * (only accessed by this thread) + * @reply_error: transaction errors reported by target thread + * (protected by @proc->inner_lock) + * @ee: extended error information from this thread + * (protected by @proc->inner_lock) + * @wait: wait queue for thread work + * @stats: per-thread statistics + * (atomics, no lock needed) + * @tmp_ref: temporary reference to indicate thread is in use + * (atomic since @proc->inner_lock cannot + * always be acquired) + * @is_dead: thread is dead and awaiting free + * when outstanding transactions are cleaned up + * (protected by @proc->inner_lock) + * + * Bookkeeping structure for binder threads. + */ +struct binder_thread { + struct binder_proc *proc; + struct rb_node rb_node; + struct list_head waiting_thread_node; + int pid; + int looper; /* only modified by this thread */ + bool looper_need_return; /* can be written by other thread */ + struct binder_transaction *transaction_stack; + struct list_head todo; + bool process_todo; + struct binder_error return_error; + struct binder_error reply_error; + struct binder_extended_error ee; + wait_queue_head_t wait; + struct binder_stats stats; + atomic_t tmp_ref; + bool is_dead; +}; + +/** + * struct binder_txn_fd_fixup - transaction fd fixup list element + * @fixup_entry: list entry + * @file: struct file to be associated with new fd + * @offset: offset in buffer data to this fixup + * @target_fd: fd to use by the target to install @file + * + * List element for fd fixups in a transaction. Since file + * descriptors need to be allocated in the context of the + * target process, we pass each fd to be processed in this + * struct. + */ +struct binder_txn_fd_fixup { + struct list_head fixup_entry; + struct file *file; + size_t offset; + int target_fd; +}; + +struct binder_transaction { + int debug_id; + struct binder_work work; + struct binder_thread *from; + pid_t from_pid; + pid_t from_tid; + struct binder_transaction *from_parent; + struct binder_proc *to_proc; + struct binder_thread *to_thread; + struct binder_transaction *to_parent; + unsigned is_async:1; + unsigned is_reply:1; + + struct binder_buffer *buffer; + unsigned int code; + unsigned int flags; + long priority; + long saved_priority; + kuid_t sender_euid; + ktime_t start_time; + struct list_head fd_fixups; + binder_uintptr_t security_ctx; + /** + * @lock: protects @from, @to_proc, and @to_thread + * + * @from, @to_proc, and @to_thread can be set to NULL + * during thread teardown + */ + spinlock_t lock; +}; + +/** + * struct binder_object - union of flat binder object types + * @hdr: generic object header + * @fbo: binder object (nodes and refs) + * @fdo: file descriptor object + * @bbo: binder buffer pointer + * @fdao: file descriptor array + * + * Used for type-independent object copies + */ +struct binder_object { + union { + struct binder_object_header hdr; + struct flat_binder_object fbo; + struct binder_fd_object fdo; + struct binder_buffer_object bbo; + struct binder_fd_array_object fdao; + }; +}; + +/** + * Add a binder device to binder_devices + * @device: the new binder device to add to the global list + */ +void binder_add_device(struct binder_device *device); + +/** + * Remove a binder device to binder_devices + * @device: the binder device to remove from the global list + */ +void binder_remove_device(struct binder_device *device); + +#if IS_ENABLED(CONFIG_KUNIT) +vm_fault_t binder_vm_fault(struct vm_fault *vmf); +#endif + +#endif /* _LINUX_BINDER_INTERNAL_H */ -- cgit v1.3.1