Staging: android: delete android drivers

These drivers are no longer being developed and the original authors
seem to have abandonded them and hence, do not want them in the mainline
kernel tree.

So sad :(

Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

15 files changed, 0 insertions, 5807 deletions

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 56b275073ce..5dccf6bfb0f 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -83,8 +83,6 @@ source "drivers/staging/mimio/Kconfig"
 
 source "drivers/staging/frontier/Kconfig"
 
-source "drivers/staging/android/Kconfig"
-
 source "drivers/staging/dream/Kconfig"
 
 source "drivers/staging/dst/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index edae7d681e6..2f228f99be9 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -24,7 +24,6 @@ obj-$(CONFIG_RTL8192SU)		+= rtl8192su/
 obj-$(CONFIG_RTL8192E)		+= rtl8192e/
 obj-$(CONFIG_INPUT_MIMIO)	+= mimio/
 obj-$(CONFIG_TRANZPORT)		+= frontier/
-obj-$(CONFIG_ANDROID)		+= android/
 obj-$(CONFIG_DREAM)		+= dream/
 obj-$(CONFIG_DST)		+= dst/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
deleted file mode 100644
index eb675635ae6..00000000000
--- a/drivers/staging/android/Kconfig
+++ /dev/null
@@ -1,96 +0,0 @@
-menu "Android"
-
-config ANDROID
-	bool "Android Drivers"
-	depends on BROKEN
-	default N
-	---help---
-	  Enable support for various drivers needed on the Android platform
-
-if ANDROID
-
-config ANDROID_BINDER_IPC
-	bool "Android Binder IPC Driver"
-	default n
-
-config ANDROID_LOGGER
-	tristate "Android log driver"
-	default n
-
-config ANDROID_RAM_CONSOLE
-	bool "Android RAM buffer console"
-	default n
-
-config ANDROID_RAM_CONSOLE_ENABLE_VERBOSE
-	bool "Enable verbose console messages on Android RAM console"
-	default y
-	depends on ANDROID_RAM_CONSOLE
-
-menuconfig ANDROID_RAM_CONSOLE_ERROR_CORRECTION
-	bool "Android RAM Console Enable error correction"
-	default n
-	depends on ANDROID_RAM_CONSOLE
-	depends on !ANDROID_RAM_CONSOLE_EARLY_INIT
-	select REED_SOLOMON
-	select REED_SOLOMON_ENC8
-	select REED_SOLOMON_DEC8
-
-if ANDROID_RAM_CONSOLE_ERROR_CORRECTION
-
-config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_DATA_SIZE
-	int "Android RAM Console Data data size"
-	default 128
-	help
-	  Must be a power of 2.
-
-config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_ECC_SIZE
-	int "Android RAM Console ECC size"
-	default 16
-
-config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE
-	int "Android RAM Console Symbol size"
-	default 8
-
-config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_POLYNOMIAL
-	hex "Android RAM Console Polynomial"
-	default 0x19 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 4)
-	default 0x29 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 5)
-	default 0x61 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 6)
-	default 0x89 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 7)
-	default 0x11d if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 8)
-
-endif # ANDROID_RAM_CONSOLE_ERROR_CORRECTION
-
-config ANDROID_RAM_CONSOLE_EARLY_INIT
-	bool "Start Android RAM console early"
-	default n
-	depends on ANDROID_RAM_CONSOLE
-
-config ANDROID_RAM_CONSOLE_EARLY_ADDR
-	hex "Android RAM console virtual address"
-	default 0
-	depends on ANDROID_RAM_CONSOLE_EARLY_INIT
-
-config ANDROID_RAM_CONSOLE_EARLY_SIZE
-	hex "Android RAM console buffer size"
-	default 0
-	depends on ANDROID_RAM_CONSOLE_EARLY_INIT
-
-config ANDROID_TIMED_OUTPUT
-	bool "Timed output class driver"
-	default y
-
-config ANDROID_TIMED_GPIO
-	tristate "Android timed gpio driver"
-	depends on GENERIC_GPIO && ANDROID_TIMED_OUTPUT
-	default n
-
-config ANDROID_LOW_MEMORY_KILLER
-	bool "Android Low Memory Killer"
-	default N
-	---help---
-	  Register processes to be killed when memory is low
-
-endif # if ANDROID
-
-endmenu
diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile
deleted file mode 100644
index 8e057e626d1..00000000000
--- a/drivers/staging/android/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-obj-$(CONFIG_ANDROID_BINDER_IPC)	+= binder.o
-obj-$(CONFIG_ANDROID_LOGGER)		+= logger.o
-obj-$(CONFIG_ANDROID_RAM_CONSOLE)	+= ram_console.o
-obj-$(CONFIG_ANDROID_TIMED_OUTPUT)	+= timed_output.o
-obj-$(CONFIG_ANDROID_TIMED_GPIO)	+= timed_gpio.o
-obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER)	+= lowmemorykiller.o
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO
deleted file mode 100644
index e59c5be4be2..00000000000
--- a/drivers/staging/android/TODO
+++ /dev/null
@@ -1,10 +0,0 @@
-TODO:
-	- checkpatch.pl cleanups
-	- sparse fixes
-	- rename files to be not so "generic"
-	- make sure things build as modules properly
-	- add proper arch dependancies as needed
-	- audit userspace interfaces to make sure they are sane
-
-Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc:
-Brian Swetland <swetland@google.com>
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
deleted file mode 100644
index 99010d4b304..00000000000
--- a/drivers/staging/android/binder.c
+++ /dev/null
@@ -1,3767 +0,0 @@
-/* binder.c
- *
- * Android IPC Subsystem
- *
- * Copyright (C) 2007-2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <asm/cacheflush.h>
-#include <linux/fdtable.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/list.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/nsproxy.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/rbtree.h>
-#include <linux/sched.h>
-#include <linux/uaccess.h>
-#include <linux/vmalloc.h>
-
-#include "binder.h"
-
-static DEFINE_MUTEX(binder_lock);
-static DEFINE_MUTEX(binder_deferred_lock);
-
-static HLIST_HEAD(binder_procs);
-static HLIST_HEAD(binder_deferred_list);
-static HLIST_HEAD(binder_dead_nodes);
-
-static struct proc_dir_entry *binder_proc_dir_entry_root;
-static struct proc_dir_entry *binder_proc_dir_entry_proc;
-static struct binder_node *binder_context_mgr_node;
-static uid_t binder_context_mgr_uid = -1;
-static int binder_last_id;
-
-static int binder_read_proc_proc(char *page, char **start, off_t off,
-				 int count, int *eof, void *data);
-
-/* This is only defined in include/asm-arm/sizes.h */
-#ifndef SZ_1K
-#define SZ_1K                               0x400
-#endif
-
-#ifndef SZ_4M
-#define SZ_4M                               0x400000
-#endif
-
-#define FORBIDDEN_MMAP_FLAGS                (VM_WRITE)
-
-#define BINDER_SMALL_BUF_SIZE (PAGE_SIZE * 64)
-
-enum {
-	BINDER_DEBUG_USER_ERROR             = 1U << 0,
-	BINDER_DEBUG_FAILED_TRANSACTION     = 1U << 1,
-	BINDER_DEBUG_DEAD_TRANSACTION       = 1U << 2,
-	BINDER_DEBUG_OPEN_CLOSE             = 1U << 3,
-	BINDER_DEBUG_DEAD_BINDER            = 1U << 4,
-	BINDER_DEBUG_DEATH_NOTIFICATION     = 1U << 5,
-	BINDER_DEBUG_READ_WRITE             = 1U << 6,
-	BINDER_DEBUG_USER_REFS              = 1U << 7,
-	BINDER_DEBUG_THREADS                = 1U << 8,
-	BINDER_DEBUG_TRANSACTION            = 1U << 9,
-	BINDER_DEBUG_TRANSACTION_COMPLETE   = 1U << 10,
-	BINDER_DEBUG_FREE_BUFFER            = 1U << 11,
-	BINDER_DEBUG_INTERNAL_REFS          = 1U << 12,
-	BINDER_DEBUG_BUFFER_ALLOC           = 1U << 13,
-	BINDER_DEBUG_PRIORITY_CAP           = 1U << 14,
-	BINDER_DEBUG_BUFFER_ALLOC_ASYNC     = 1U << 15,
-};
-static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
-	BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
-module_param_named(debug_mask, binder_debug_mask, uint, S_IWUSR | S_IRUGO);
-
-static int binder_debug_no_lock;
-module_param_named(proc_no_lock, binder_debug_no_lock, bool, S_IWUSR | S_IRUGO);
-
-static DECLARE_WAIT_QUEUE_HEAD(binder_user_error_wait);
-static int binder_stop_on_user_error;
-
-static int binder_set_stop_on_user_error(const char *val,
-					 struct kernel_param *kp)
-{
-	int ret;
-	ret = param_set_int(val, kp);
-	if (binder_stop_on_user_error < 2)
-		wake_up(&binder_user_error_wait);
-	return ret;
-}
-module_param_call(stop_on_user_error, binder_set_stop_on_user_error,
-	param_get_int, &binder_stop_on_user_error, S_IWUSR | S_IRUGO);
-
-#define binder_debug(mask, x...) \
-	do { \
-		if (binder_debug_mask & mask) \
-			printk(KERN_INFO x); \
-	} while (0)
-
-#define binder_user_error(x...) \
-	do { \
-		if (binder_debug_mask & BINDER_DEBUG_USER_ERROR) \
-			printk(KERN_INFO x); \
-		if (binder_stop_on_user_error) \
-			binder_stop_on_user_error = 2; \
-	} while (0)
-
-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_COUNT
-};
-
-struct binder_stats {
-	int br[_IOC_NR(BR_FAILED_REPLY) + 1];
-	int bc[_IOC_NR(BC_DEAD_BINDER_DONE) + 1];
-	int obj_created[BINDER_STAT_COUNT];
-	int obj_deleted[BINDER_STAT_COUNT];
-};
-
-static struct binder_stats binder_stats;
-
-static inline void binder_stats_deleted(enum binder_stat_types type)
-{
-	binder_stats.obj_deleted[type]++;
-}
-
-static inline void binder_stats_created(enum binder_stat_types type)
-{
-	binder_stats.obj_created[type]++;
-}
-
-struct binder_transaction_log_entry {
-	int debug_id;
-	int call_type;
-	int from_proc;
-	int from_thread;
-	int target_handle;
-	int to_proc;
-	int to_thread;
-	int to_node;
-	int data_size;
-	int offsets_size;
-};
-struct binder_transaction_log {
-	int next;
-	int full;
-	struct binder_transaction_log_entry entry[32];
-};
-static struct binder_transaction_log binder_transaction_log;
-static struct binder_transaction_log binder_transaction_log_failed;
-
-static struct binder_transaction_log_entry *binder_transaction_log_add(
-	struct binder_transaction_log *log)
-{
-	struct binder_transaction_log_entry *e;
-	e = &log->entry[log->next];
-	memset(e, 0, sizeof(*e));
-	log->next++;
-	if (log->next == ARRAY_SIZE(log->entry)) {
-		log->next = 0;
-		log->full = 1;
-	}
-	return e;
-}
-
-struct binder_work {
-	struct list_head entry;
-	enum {
-		BINDER_WORK_TRANSACTION = 1,
-		BINDER_WORK_TRANSACTION_COMPLETE,
-		BINDER_WORK_NODE,
-		BINDER_WORK_DEAD_BINDER,
-		BINDER_WORK_DEAD_BINDER_AND_CLEAR,
-		BINDER_WORK_CLEAR_DEATH_NOTIFICATION,
-	} type;
-};
-
-struct binder_node {
-	int debug_id;
-	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;
-	void __user *ptr;
-	void __user *cookie;
-	unsigned has_strong_ref:1;
-	unsigned pending_strong_ref:1;
-	unsigned has_weak_ref:1;
-	unsigned pending_weak_ref:1;
-	unsigned has_async_transaction:1;
-	unsigned accept_fds:1;
-	unsigned min_priority:8;
-	struct list_head async_todo;
-};
-
-struct binder_ref_death {
-	struct binder_work work;
-	void __user *cookie;
-};
-
-struct binder_ref {
-	/* Lookups needed: */
-	/*   node + proc => ref (transaction) */
-	/*   desc + proc => ref (transaction, inc/dec ref) */
-	/*   node => refs + procs (proc exit) */
-	int debug_id;
-	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;
-	uint32_t desc;
-	int strong;
-	int weak;
-	struct binder_ref_death *death;
-};
-
-struct binder_buffer {
-	struct list_head entry; /* free and allocated entries by addesss */
-	struct rb_node rb_node; /* free entry by size or allocated entry */
-				/* by address */
-	unsigned free:1;
-	unsigned allow_user_free:1;
-	unsigned async_transaction:1;
-	unsigned debug_id:29;
-
-	struct binder_transaction *transaction;
-
-	struct binder_node *target_node;
-	size_t data_size;
-	size_t offsets_size;
-	uint8_t data[0];
-};
-
-enum binder_deferred_state {
-	BINDER_DEFERRED_PUT_FILES    = 0x01,
-	BINDER_DEFERRED_FLUSH        = 0x02,
-	BINDER_DEFERRED_RELEASE      = 0x04,
-};
-
-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;
-	int pid;
-	struct vm_area_struct *vma;
-	struct task_struct *tsk;
-	struct files_struct *files;
-	struct hlist_node deferred_work_node;
-	int deferred_work;
-	void *buffer;
-	ptrdiff_t user_buffer_offset;
-
-	struct list_head buffers;
-	struct rb_root free_buffers;
-	struct rb_root allocated_buffers;
-	size_t free_async_space;
-
-	struct page **pages;
-	size_t buffer_size;
-	uint32_t buffer_free;
-	struct list_head todo;
-	wait_queue_head_t wait;
-	struct binder_stats stats;
-	struct list_head delivered_death;
-	int max_threads;
-	int requested_threads;
-	int requested_threads_started;
-	int ready_threads;
-	long default_priority;
-};
-
-enum {
-	BINDER_LOOPER_STATE_REGISTERED  = 0x01,
-	BINDER_LOOPER_STATE_ENTERED     = 0x02,
-	BINDER_LOOPER_STATE_EXITED      = 0x04,
-	BINDER_LOOPER_STATE_INVALID     = 0x08,
-	BINDER_LOOPER_STATE_WAITING     = 0x10,
-	BINDER_LOOPER_STATE_NEED_RETURN = 0x20
-};
-
-struct binder_thread {
-	struct binder_proc *proc;
-	struct rb_node rb_node;
-	int pid;
-	int looper;
-	struct binder_transaction *transaction_stack;
-	struct list_head todo;
-	uint32_t return_error; /* Write failed, return error code in read buf */
-	uint32_t return_error2; /* Write failed, return error code in read */
-		/* buffer. Used when sending a reply to a dead process that */
-		/* we are also waiting on */
-	wait_queue_head_t wait;
-	struct binder_stats stats;
-};
-
-struct binder_transaction {
-	int debug_id;
-	struct binder_work work;
-	struct binder_thread *from;
-	struct binder_transaction *from_parent;
-	struct binder_proc *to_proc;
-	struct binder_thread *to_thread;
-	struct binder_transaction *to_parent;
-	unsigned need_reply:1;
-	/* unsigned is_dead:1; */	/* not used at the moment */
-
-	struct binder_buffer *buffer;
-	unsigned int	code;
-	unsigned int	flags;
-	long	priority;
-	long	saved_priority;
-	uid_t	sender_euid;
-};
-
-static void
-binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer);
-
-/*
- * copied from get_unused_fd_flags
- */
-int task_get_unused_fd_flags(struct binder_proc *proc, int flags)
-{
-	struct files_struct *files = proc->files;
-	int fd, error;
-	struct fdtable *fdt;
-	unsigned long rlim_cur;
-	unsigned long irqs;
-
-	if (files == NULL)
-		return -ESRCH;
-
-	error = -EMFILE;
-	spin_lock(&files->file_lock);
-
-repeat:
-	fdt = files_fdtable(files);
-	fd = find_next_zero_bit(fdt->open_fds->fds_bits, fdt->max_fds,
-				files->next_fd);
-
-	/*
-	 * N.B. For clone tasks sharing a files structure, this test
-	 * will limit the total number of files that can be opened.
-	 */
-	rlim_cur = 0;
-	if (lock_task_sighand(proc->tsk, &irqs)) {
-		rlim_cur = proc->tsk->signal->rlim[RLIMIT_NOFILE].rlim_cur;
-		unlock_task_sighand(proc->tsk, &irqs);
-	}
-	if (fd >= rlim_cur)
-		goto out;
-
-	/* Do we need to expand the fd array or fd set?  */
-	error = expand_files(files, fd);
-	if (error < 0)
-		goto out;
-
-	if (error) {
-		/*
-		 * If we needed to expand the fs array we
-		 * might have blocked - try again.
-		 */
-		error = -EMFILE;
-		goto repeat;
-	}
-
-	FD_SET(fd, fdt->open_fds);
-	if (flags & O_CLOEXEC)
-		FD_SET(fd, fdt->close_on_exec);
-	else
-		FD_CLR(fd, fdt->close_on_exec);
-	files->next_fd = fd + 1;
-#if 1
-	/* Sanity check */
-	if (fdt->fd[fd] != NULL) {
-		printk(KERN_WARNING "get_unused_fd: slot %d not NULL!\n", fd);
-		fdt->fd[fd] = NULL;
-	}
-#endif
-	error = fd;
-
-out:
-	spin_unlock(&files->file_lock);
-	return error;
-}
-
-/*
- * copied from fd_install
- */
-static void task_fd_install(
-	struct binder_proc *proc, unsigned int fd, struct file *file)
-{
-	struct files_struct *files = proc->files;
-	struct fdtable *fdt;
-
-	if (files == NULL)
-		return;
-
-	spin_lock(&files->file_lock);
-	fdt = files_fdtable(files);
-	BUG_ON(fdt->fd[fd] != NULL);
-	rcu_assign_pointer(fdt->fd[fd], file);
-	spin_unlock(&files->file_lock);
-}
-
-/*
- * copied from __put_unused_fd in open.c
- */
-static void __put_unused_fd(struct files_struct *files, unsigned int fd)
-{
-	struct fdtable *fdt = files_fdtable(files);
-	__FD_CLR(fd, fdt->open_fds);
-	if (fd < files->next_fd)
-		files->next_fd = fd;
-}
-
-/*
- * copied from sys_close
- */
-static long task_close_fd(struct binder_proc *proc, unsigned int fd)
-{
-	struct file *filp;
-	struct files_struct *files = proc->files;
-	struct fdtable *fdt;
-	int retval;
-
-	if (files == NULL)
-		return -ESRCH;
-
-	spin_lock(&files->file_lock);
-	fdt = files_fdtable(files);
-	if (fd >= fdt->max_fds)
-		goto out_unlock;
-	filp = fdt->fd[fd];
-	if (!filp)
-		goto out_unlock;
-	rcu_assign_pointer(fdt->fd[fd], NULL);
-	FD_CLR(fd, fdt->close_on_exec);
-	__put_unused_fd(files, fd);
-	spin_unlock(&files->file_lock);
-	retval = filp_close(filp, files);
-
-	/* can't restart close syscall because file table entry was cleared */
-	if (unlikely(retval == -ERESTARTSYS ||
-		     retval == -ERESTARTNOINTR ||
-		     retval == -ERESTARTNOHAND ||
-		     retval == -ERESTART_RESTARTBLOCK))
-		retval = -EINTR;
-
-	return retval;
-
-out_unlock:
-	spin_unlock(&files->file_lock);
-	return -EBADF;
-}
-
-static void binder_set_nice(long nice)
-{
-	long min_nice;
-	if (can_nice(current, nice)) {
-		set_user_nice(current, nice);
-		return;
-	}
-	min_nice = 20 - current->signal->rlim[RLIMIT_NICE].rlim_cur;
-	binder_debug(BINDER_DEBUG_PRIORITY_CAP,
-		     "binder: %d: nice value %ld not allowed use "
-		     "%ld instead\n", current->pid, nice, min_nice);
-	set_user_nice(current, min_nice);
-	if (min_nice < 20)
-		return;
-	binder_user_error("binder: %d RLIMIT_NICE not set\n", current->pid);
-}
-
-static size_t binder_buffer_size(struct binder_proc *proc,
-				 struct binder_buffer *buffer)
-{
-	if (list_is_last(&buffer->entry, &proc->buffers))
-		return proc->buffer + proc->buffer_size - (void *)buffer->data;
-	else
-		return (size_t)list_entry(buffer->entry.next,
-			struct binder_buffer, entry) - (size_t)buffer->data;
-}
-
-static void binder_insert_free_buffer(struct binder_proc *proc,
-				      struct binder_buffer *new_buffer)
-{
-	struct rb_node **p = &proc->free_buffers.rb_node;
-	struct rb_node *parent = NULL;
-	struct binder_buffer *buffer;
-	size_t buffer_size;
-	size_t new_buffer_size;
-
-	BUG_ON(!new_buffer->free);
-
-	new_buffer_size = binder_buffer_size(proc, new_buffer);
-
-	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: add free buffer, size %zd, "
-		     "at %p\n", proc->pid, new_buffer_size, new_buffer);
-
-	while (*p) {
-		parent = *p;
-		buffer = rb_entry(parent, struct binder_buffer, rb_node);
-		BUG_ON(!buffer->free);
-
-		buffer_size = binder_buffer_size(proc, buffer);
-
-		if (new_buffer_size < buffer_size)
-			p = &parent->rb_left;
-		else
-			p = &parent->rb_right;
-	}
-	rb_link_node(&new_buffer->rb_node, parent, p);
-	rb_insert_color(&new_buffer->rb_node, &proc->free_buffers);
-}
-
-static void binder_insert_allocated_buffer(struct binder_proc *proc,
-					   struct binder_buffer *new_buffer)
-{
-	struct rb_node **p = &proc->allocated_buffers.rb_node;
-	struct rb_node *parent = NULL;
-	struct binder_buffer *buffer;
-
-	BUG_ON(new_buffer->free);
-
-	while (*p) {
-		parent = *p;
-		buffer = rb_entry(parent, struct binder_buffer, rb_node);
-		BUG_ON(buffer->free);
-
-		if (new_buffer < buffer)
-			p = &parent->rb_left;
-		else if (new_buffer > buffer)
-			p = &parent->rb_right;
-		else
-			BUG();
-	}
-	rb_link_node(&new_buffer->rb_node, parent, p);
-	rb_insert_color(&new_buffer->rb_node, &proc->allocated_buffers);
-}
-
-static struct binder_buffer *binder_buffer_lookup(struct binder_proc *proc,
-						  void __user *user_ptr)
-{
-	struct rb_node *n = proc->allocated_buffers.rb_node;
-	struct binder_buffer *buffer;
-	struct binder_buffer *kern_ptr;
-
-	kern_ptr = user_ptr - proc->user_buffer_offset
-		- offsetof(struct binder_buffer, data);
-
-	while (n) {
-		buffer = rb_entry(n, struct binder_buffer, rb_node);
-		BUG_ON(buffer->free);
-
-		if (kern_ptr < buffer)
-			n = n->rb_left;
-		else if (kern_ptr > buffer)
-			n = n->rb_right;
-		else
-			return buffer;
-	}
-	return NULL;
-}
-
-static int binder_update_page_range(struct binder_proc *proc, int allocate,
-				    void *start, void *end,
-				    struct vm_area_struct *vma)
-{
-	void *page_addr;
-	unsigned long user_page_addr;
-	struct vm_struct tmp_area;
-	struct page **page;
-	struct mm_struct *mm;
-
-	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: %s pages %p-%p\n", proc->pid,
-		     allocate ? "allocate" : "free", start, end);
-
-	if (end <= start)
-		return 0;
-
-	if (vma)
-		mm = NULL;
-	else
-		mm = get_task_mm(proc->tsk);
-
-	if (mm) {
-		down_write(&mm->mmap_sem);
-		vma = proc->vma;
-	}
-
-	if (allocate == 0)
-		goto free_range;
-
-	if (vma == NULL) {
-		printk(KERN_ERR "binder: %d: binder_alloc_buf failed to "
-		       "map pages in userspace, no vma\n", proc->pid);
-		goto err_no_vma;
-	}
-
-	for (page_addr = start; page_addr < end; page_addr += PAGE_SIZE) {
-		int ret;
-		struct page **page_array_ptr;
-		page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
-
-		BUG_ON(*page);
-		*page = alloc_page(GFP_KERNEL | __GFP_ZERO);
-		if (*page == NULL) {
-			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
-			       "for page at %p\n", proc->pid, page_addr);
-			goto err_alloc_page_failed;
-		}
-		tmp_area.addr = page_addr;
-		tmp_area.size = PAGE_SIZE + PAGE_SIZE /* guard page? */;
-		page_array_ptr = page;
-		ret = map_vm_area(&tmp_area, PAGE_KERNEL, &page_array_ptr);
-		if (ret) {
-			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
-			       "to map page at %p in kernel\n",
-			       proc->pid, page_addr);
-			goto err_map_kernel_failed;
-		}
-		user_page_addr =
-			(uintptr_t)page_addr + proc->user_buffer_offset;
-		ret = vm_insert_page(vma, user_page_addr, page[0]);
-		if (ret) {
-			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
-			       "to map page at %lx in userspace\n",
-			       proc->pid, user_page_addr);
-			goto err_vm_insert_page_failed;
-		}
-		/* vm_insert_page does not seem to increment the refcount */
-	}
-	if (mm) {
-		up_write(&mm->mmap_sem);
-		mmput(mm);
-	}
-	return 0;
-
-free_range:
-	for (page_addr = end - PAGE_SIZE; page_addr >= start;
-	     page_addr -= PAGE_SIZE) {
-		page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
-		if (vma)
-			zap_page_range(vma, (uintptr_t)page_addr +
-				proc->user_buffer_offset, PAGE_SIZE, NULL);
-err_vm_insert_page_failed:
-		unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
-err_map_kernel_failed:
-		__free_page(*page);
-		*page = NULL;
-err_alloc_page_failed:
-		;
-	}
-err_no_vma:
-	if (mm) {
-		up_write(&mm->mmap_sem);
-		mmput(mm);
-	}
-	return -ENOMEM;
-}
-
-static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
-					      size_t data_size,
-					      size_t offsets_size, int is_async)
-{
-	struct rb_node *n = proc->free_buffers.rb_node;
-	struct binder_buffer *buffer;
-	size_t buffer_size;
-	struct rb_node *best_fit = NULL;
-	void *has_page_addr;
-	void *end_page_addr;
-	size_t size;
-
-	if (proc->vma == NULL) {
-		printk(KERN_ERR "binder: %d: binder_alloc_buf, no vma\n",
-		       proc->pid);
-		return NULL;
-	}
-
-	size = ALIGN(data_size, sizeof(void *)) +
-		ALIGN(offsets_size, sizeof(void *));
-
-	if (size < data_size || size < offsets_size) {
-		binder_user_error("binder: %d: got transaction with invalid "
-			"size %zd-%zd\n", proc->pid, data_size, offsets_size);
-		return NULL;
-	}
-
-	if (is_async &&
-	    proc->free_async_space < size + sizeof(struct binder_buffer)) {
-		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-			     "binder: %d: binder_alloc_buf size %zd"
-			     "failed, no async space left\n", proc->pid, size);
-		return NULL;
-	}
-
-	while (n) {
-		buffer = rb_entry(n, struct binder_buffer, rb_node);
-		BUG_ON(!buffer->free);
-		buffer_size = binder_buffer_size(proc, buffer);
-
-		if (size < buffer_size) {
-			best_fit = n;
-			n = n->rb_left;
-		} else if (size > buffer_size)
-			n = n->rb_right;
-		else {
-			best_fit = n;
-			break;
-		}
-	}
-	if (best_fit == NULL) {
-		printk(KERN_ERR "binder: %d: binder_alloc_buf size %zd failed, "
-		       "no address space\n", proc->pid, size);
-		return NULL;
-	}
-	if (n == NULL) {
-		buffer = rb_entry(best_fit, struct binder_buffer, rb_node);
-		buffer_size = binder_buffer_size(proc, buffer);
-	}
-
-	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: binder_alloc_buf size %zd got buff"
-		     "er %p size %zd\n", proc->pid, size, buffer, buffer_size);
-
-	has_page_addr =
-		(void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
-	if (n == NULL) {
-		if (size + sizeof(struct binder_buffer) + 4 >= buffer_size)
-			buffer_size = size; /* no room for other buffers */
-		else
-			buffer_size = size + sizeof(struct binder_buffer);
-	}
-	end_page_addr =
-		(void *)PAGE_ALIGN((uintptr_t)buffer->data + buffer_size);
-	if (end_page_addr > has_page_addr)
-		end_page_addr = has_page_addr;
-	if (binder_update_page_range(proc, 1,
-	    (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr, NULL))
-		return NULL;
-
-	rb_erase(best_fit, &proc->free_buffers);
-	buffer->free = 0;
-	binder_insert_allocated_buffer(proc, buffer);
-	if (buffer_size != size) {
-		struct binder_buffer *new_buffer = (void *)buffer->data + size;
-		list_add(&new_buffer->entry, &buffer->entry);
-		new_buffer->free = 1;
-		binder_insert_free_buffer(proc, new_buffer);
-	}
-	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: binder_alloc_buf size %zd got "
-		     "%p\n", proc->pid, size, buffer);
-	buffer->data_size = data_size;
-	buffer->offsets_size = offsets_size;
-	buffer->async_transaction = is_async;
-	if (is_async) {
-		proc->free_async_space -= size + sizeof(struct binder_buffer);
-		binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
-			     "binder: %d: binder_alloc_buf size %zd "
-			     "async free %zd\n", proc->pid, size,
-			     proc->free_async_space);
-	}
-
-	return buffer;
-}
-
-static void *buffer_start_page(struct binder_buffer *buffer)
-{
-	return (void *)((uintptr_t)buffer & PAGE_MASK);
-}
-
-static void *buffer_end_page(struct binder_buffer *buffer)
-{
-	return (void *)(((uintptr_t)(buffer + 1) - 1) & PAGE_MASK);
-}
-
-static void binder_delete_free_buffer(struct binder_proc *proc,
-				      struct binder_buffer *buffer)
-{
-	struct binder_buffer *prev, *next = NULL;
-	int free_page_end = 1;
-	int free_page_start = 1;
-
-	BUG_ON(proc->buffers.next == &buffer->entry);
-	prev = list_entry(buffer->entry.prev, struct binder_buffer, entry);
-	BUG_ON(!prev->free);
-	if (buffer_end_page(prev) == buffer_start_page(buffer)) {
-		free_page_start = 0;
-		if (buffer_end_page(prev) == buffer_end_page(buffer))
-			free_page_end = 0;
-		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-			     "binder: %d: merge free, buffer %p "
-			     "share page with %p\n", proc->pid, buffer, prev);
-	}
-
-	if (!list_is_last(&buffer->entry, &proc->buffers)) {
-		next = list_entry(buffer->entry.next,
-				  struct binder_buffer, entry);
-		if (buffer_start_page(next) == buffer_end_page(buffer)) {
-			free_page_end = 0;
-			if (buffer_start_page(next) ==
-			    buffer_start_page(buffer))
-				free_page_start = 0;
-			binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-				     "binder: %d: merge free, buffer"
-				     " %p share page with %p\n", proc->pid,
-				     buffer, prev);
-		}
-	}
-	list_del(&buffer->entry);
-	if (free_page_start || free_page_end) {
-		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-			     "binder: %d: merge free, buffer %p do "
-			     "not share page%s%s with with %p or %p\n",
-			     proc->pid, buffer, free_page_start ? "" : " end",
-			     free_page_end ? "" : " start", prev, next);
-		binder_update_page_range(proc, 0, free_page_start ?
-			buffer_start_page(buffer) : buffer_end_page(buffer),
-			(free_page_end ? buffer_end_page(buffer) :
-			buffer_start_page(buffer)) + PAGE_SIZE, NULL);
-	}
-}
-
-static void binder_free_buf(struct binder_proc *proc,
-			    struct binder_buffer *buffer)
-{
-	size_t size, buffer_size;
-
-	buffer_size = binder_buffer_size(proc, buffer);
-
-	size = ALIGN(buffer->data_size, sizeof(void *)) +
-		ALIGN(buffer->offsets_size, sizeof(void *));
-
-	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: binder_free_buf %p size %zd buffer"
-		     "_size %zd\n", proc->pid, buffer, size, buffer_size);
-
-	BUG_ON(buffer->free);
-	BUG_ON(size > buffer_size);
-	BUG_ON(buffer->transaction != NULL);
-	B