1 #ifndef _LINUX_COMPAT_H_
2 #define _LINUX_COMPAT_H_
6 #include <linux/types.h>
8 #include <linux/kernel.h>
11 typedef struct unused unused_t;
17 extern struct p_current *current;
19 /* avoid conflict with <dm/device.h> */
36 #define dev_dbg(dev, fmt, args...) \
38 #define dev_vdbg(dev, fmt, args...) \
40 #define dev_info(dev, fmt, args...) \
42 #define dev_err(dev, fmt, args...) \
44 #define dev_warn(dev, fmt, args...) \
47 #define netdev_emerg(dev, fmt, args...) \
49 #define netdev_alert(dev, fmt, args...) \
51 #define netdev_crit(dev, fmt, args...) \
53 #define netdev_err(dev, fmt, args...) \
55 #define netdev_warn(dev, fmt, args...) \
57 #define netdev_notice(dev, fmt, args...) \
59 #define netdev_info(dev, fmt, args...) \
61 #define netdev_dbg(dev, fmt, args...) \
63 #define netdev_vdbg(dev, fmt, args...) \
66 #define GFP_ATOMIC ((gfp_t) 0)
67 #define GFP_KERNEL ((gfp_t) 0)
68 #define GFP_NOFS ((gfp_t) 0)
69 #define GFP_USER ((gfp_t) 0)
70 #define __GFP_NOWARN ((gfp_t) 0)
71 #define __GFP_ZERO ((__force gfp_t)0x8000u) /* Return zeroed page on success */
73 void *kmalloc(size_t size, int flags);
75 static inline void *kzalloc(size_t size, gfp_t flags)
77 return kmalloc(size, flags | __GFP_ZERO);
80 static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
82 if (size != 0 && n > SIZE_MAX / size)
84 return kmalloc(n * size, flags | __GFP_ZERO);
87 static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
89 return kmalloc_array(n, size, flags | __GFP_ZERO);
92 #define vmalloc(size) kmalloc(size, 0)
93 #define __vmalloc(size, flags, pgsz) kmalloc(size, flags)
94 static inline void *vzalloc(unsigned long size)
96 return kzalloc(size, 0);
98 static inline void kfree(const void *block)
102 static inline void vfree(const void *addr)
107 struct kmem_cache { int sz; };
109 struct kmem_cache *get_mem(int element_sz);
110 #define kmem_cache_create(a, sz, c, d, e) get_mem(sz)
111 void *kmem_cache_alloc(struct kmem_cache *obj, int flag);
112 static inline void kmem_cache_free(struct kmem_cache *cachep, void *obj)
116 static inline void kmem_cache_destroy(struct kmem_cache *cachep)
121 #define DECLARE_WAITQUEUE(...) do { } while (0)
122 #define add_wait_queue(...) do { } while (0)
123 #define remove_wait_queue(...) do { } while (0)
125 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
127 /* This is also defined in ARMv8's mmu.h */
129 #define PAGE_SIZE 4096
132 /* drivers/char/random.c */
133 #define get_random_bytes(...)
135 /* include/linux/leds.h */
136 struct led_trigger {};
138 #define DEFINE_LED_TRIGGER(x) static struct led_trigger *x;
139 enum led_brightness {
145 static inline void led_trigger_register_simple(const char *name,
146 struct led_trigger **trigger) {}
147 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
148 static inline void led_trigger_event(struct led_trigger *trigger,
149 enum led_brightness event) {}
151 /* uapi/linux/limits.h */
152 #define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */
155 * The type used for indexing onto a disc or disc partition.
157 * Linux always considers sectors to be 512 bytes long independently
158 * of the devices real block size.
160 * blkcnt_t is the type of the inode's block count.
163 typedef u64 sector_t;
164 typedef u64 blkcnt_t;
166 typedef unsigned long sector_t;
167 typedef unsigned long blkcnt_t;
171 #define THIS_MODULE 0
172 #define try_module_get(...) 1
173 #define module_put(...) do { } while (0)
174 #define module_init(...)
175 #define module_exit(...)
176 #define EXPORT_SYMBOL(...)
177 #define EXPORT_SYMBOL_GPL(...)
178 #define module_param(...)
179 #define module_param_call(...)
180 #define MODULE_PARM_DESC(...)
181 #define MODULE_VERSION(...)
182 #define MODULE_DESCRIPTION(...)
183 #define MODULE_AUTHOR(...)
184 #define MODULE_LICENSE(...)
185 #define MODULE_ALIAS(...)
186 #define __module_get(...)
188 /* character device */
193 #define alloc_chrdev_region(...) 0
194 #define unregister_chrdev_region(...)
196 #define class_create(...) __builtin_return_address(0)
197 #define class_create_file(...) 0
198 #define class_register(...) 0
199 #define class_unregister(...)
200 #define class_remove_file(...)
201 #define class_destroy(...)
202 #define misc_register(...) 0
203 #define misc_deregister(...)
205 #define blocking_notifier_call_chain(...) 0
208 #define late_initcall(...)
210 #define dev_set_name(...) do { } while (0)
211 #define device_register(...) 0
212 #define device_unregister(...)
213 #define volume_sysfs_init(...) 0
214 #define volume_sysfs_close(...) do { } while (0)
216 #define init_waitqueue_head(...) do { } while (0)
217 #define wait_event_interruptible(...) 0
218 #define wake_up_interruptible(...) do { } while (0)
219 #define dump_stack(...) do { } while (0)
221 #define task_pid_nr(x) 0
222 #define set_freezable(...) do { } while (0)
223 #define try_to_freeze(...) 0
224 #define set_current_state(...) do { } while (0)
225 #define kthread_should_stop(...) 0
226 #define schedule() do { } while (0)
228 #define setup_timer(timer, func, data) do {} while (0)
229 #define del_timer_sync(timer) do {} while (0)
230 #define schedule_work(work) do {} while (0)
231 #define INIT_WORK(work, fun) do {} while (0)
233 struct work_struct {};
235 unsigned long copy_from_user(void *dest, const void *src,
236 unsigned long count);
238 typedef unused_t spinlock_t;
239 typedef int wait_queue_head_t;
241 #define spin_lock_init(lock) do {} while (0)
242 #define spin_lock(lock) do {} while (0)
243 #define spin_unlock(lock) do {} while (0)
244 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0)
245 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0)
247 #define DEFINE_MUTEX(...)
248 #define mutex_init(...)
249 #define mutex_lock(...)
250 #define mutex_unlock(...)
252 #define init_rwsem(...) do { } while (0)
253 #define down_read(...) do { } while (0)
254 #define down_write(...) do { } while (0)
255 #define down_write_trylock(...) 1
256 #define up_read(...) do { } while (0)
257 #define up_write(...) do { } while (0)
259 #define cond_resched() do { } while (0)
260 #define yield() do { } while (0)
265 #define __devinitdata
266 #define __devinitconst
268 #define kthread_create(...) __builtin_return_address(0)
269 #define kthread_stop(...) do { } while (0)
270 #define wake_up_process(...) do { } while (0)
272 struct rw_semaphore { int i; };
273 #define down_write(...) do { } while (0)
274 #define up_write(...) do { } while (0)
275 #define down_read(...) do { } while (0)
276 #define up_read(...) do { } while (0)
278 struct device *parent;
280 dev_t devt; /* dev_t, creates the sysfs "dev" */
281 void (*release)(struct device *dev);
282 /* This is used from drivers/usb/musb-new subsystem only */
283 void *driver_data; /* data private to the driver */
284 void *device_data; /* data private to the device */
286 struct mutex { int i; };
287 struct kernel_param { int i; };
293 #define cdev_init(...) do { } while (0)
294 #define cdev_add(...) 0
295 #define cdev_del(...) do { } while (0)
297 #define prandom_u32(...) 0
307 /* from include/linux/types.h */
310 * struct callback_head - callback structure for use with RCU and task_work
311 * @next: next update requests in a list
312 * @func: actual update function to call after the grace period.
314 struct callback_head {
315 struct callback_head *next;
316 void (*func)(struct callback_head *head);
318 #define rcu_head callback_head
319 enum writeback_sync_modes {
320 WB_SYNC_NONE, /* Don't wait on anything */
321 WB_SYNC_ALL, /* Wait on every mapping */
324 /* from include/linux/writeback.h */
326 * A control structure which tells the writeback code what to do. These are
327 * always on the stack, and hence need no locking. They are always initialised
328 * in a manner such that unspecified fields are set to zero.
330 struct writeback_control {
331 long nr_to_write; /* Write this many pages, and decrement
332 this for each page written */
333 long pages_skipped; /* Pages which were not written */
336 * For a_ops->writepages(): if start or end are non-zero then this is
337 * a hint that the filesystem need only write out the pages inside that
338 * byterange. The byte at `end' is included in the writeout request.
343 enum writeback_sync_modes sync_mode;
345 unsigned for_kupdate:1; /* A kupdate writeback */
346 unsigned for_background:1; /* A background writeback */
347 unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */
348 unsigned for_reclaim:1; /* Invoked from the page allocator */
349 unsigned range_cyclic:1; /* range_start is cyclic */
350 unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */
353 void *kmemdup(const void *src, size_t len, gfp_t gfp);
355 typedef int irqreturn_t;
357 struct timer_list {};
358 struct notifier_block {};
360 typedef unsigned long dmaaddr_t;
362 #define pm_runtime_get_sync(dev) do {} while (0)
363 #define pm_runtime_put(dev) do {} while (0)
364 #define pm_runtime_put_sync(dev) do {} while (0)
365 #define pm_runtime_use_autosuspend(dev) do {} while (0)
366 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0)
367 #define pm_runtime_enable(dev) do {} while (0)
370 #define IRQ_HANDLED 1
371 #define IRQ_WAKE_THREAD 2
373 #define dev_set_drvdata(dev, data) do {} while (0)
375 #define enable_irq(...)
376 #define disable_irq(...)
377 #define disable_irq_wake(irq) do {} while (0)
378 #define enable_irq_wake(irq) -EINVAL
379 #define free_irq(irq, data) do {} while (0)
380 #define request_irq(nr, f, flags, nm, data) 0