175 extern unsigned long __copy_user(void __user *to, const void *from, unsigned long n);
176 extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
177 extern unsigned long __do_clear_user(void __user *to, unsigned long n);
180 __generic_copy_to_user(void __user *to, const void *from, unsigned long n)  in __generic_copy_to_user()  argument
182 	if (access_ok(VERIFY_WRITE, to, n))  in __generic_copy_to_user()
183 		return __copy_user(to,from,n);  in __generic_copy_to_user()
184 	return n;  in __generic_copy_to_user()
188 __generic_copy_from_user(void *to, const void __user *from, unsigned long n)  in __generic_copy_from_user()  argument
190 	if (access_ok(VERIFY_READ, from, n))  in __generic_copy_from_user()
191 		return __copy_user_zeroing(to,from,n);  in __generic_copy_from_user()
192 	return n;  in __generic_copy_from_user()
196 __generic_clear_user(void __user *to, unsigned long n)  in __generic_clear_user()  argument
198 	if (access_ok(VERIFY_WRITE, to, n))  in __generic_clear_user()
199 		return __do_clear_user(to,n);  in __generic_clear_user()
200 	return n;  in __generic_clear_user()
223 __constant_copy_from_user(void *to, const void __user *from, unsigned long n)  in __constant_copy_from_user()  argument
226 	if (n == 0)  in __constant_copy_from_user()
228 	else if (n == 1)  in __constant_copy_from_user()
230 	else if (n == 2)  in __constant_copy_from_user()
232 	else if (n == 3)  in __constant_copy_from_user()
234 	else if (n == 4)  in __constant_copy_from_user()
236 	else if (n == 5)  in __constant_copy_from_user()
238 	else if (n == 6)  in __constant_copy_from_user()
240 	else if (n == 7)  in __constant_copy_from_user()
242 	else if (n == 8)  in __constant_copy_from_user()
244 	else if (n == 9)  in __constant_copy_from_user()
246 	else if (n == 10)  in __constant_copy_from_user()
248 	else if (n == 11)  in __constant_copy_from_user()
250 	else if (n == 12)  in __constant_copy_from_user()
252 	else if (n == 13)  in __constant_copy_from_user()
254 	else if (n == 14)  in __constant_copy_from_user()
256 	else if (n == 15)  in __constant_copy_from_user()
258 	else if (n == 16)  in __constant_copy_from_user()
260 	else if (n == 20)  in __constant_copy_from_user()
262 	else if (n == 24)  in __constant_copy_from_user()
265 		ret = __generic_copy_from_user(to, from, n);  in __constant_copy_from_user()
273 __constant_copy_to_user(void __user *to, const void *from, unsigned long n)  in __constant_copy_to_user()  argument
276 	if (n == 0)  in __constant_copy_to_user()
278 	else if (n == 1)  in __constant_copy_to_user()
280 	else if (n == 2)  in __constant_copy_to_user()
282 	else if (n == 3)  in __constant_copy_to_user()
284 	else if (n == 4)  in __constant_copy_to_user()
286 	else if (n == 5)  in __constant_copy_to_user()
288 	else if (n == 6)  in __constant_copy_to_user()
290 	else if (n == 7)  in __constant_copy_to_user()
292 	else if (n == 8)  in __constant_copy_to_user()
294 	else if (n == 9)  in __constant_copy_to_user()
296 	else if (n == 10)  in __constant_copy_to_user()
298 	else if (n == 11)  in __constant_copy_to_user()
300 	else if (n == 12)  in __constant_copy_to_user()
302 	else if (n == 13)  in __constant_copy_to_user()
304 	else if (n == 14)  in __constant_copy_to_user()
306 	else if (n == 15)  in __constant_copy_to_user()
308 	else if (n == 16)  in __constant_copy_to_user()
310 	else if (n == 20)  in __constant_copy_to_user()
312 	else if (n == 24)  in __constant_copy_to_user()
315 		ret = __generic_copy_to_user(to, from, n);  in __constant_copy_to_user()
323 __constant_clear_user(void __user *to, unsigned long n)  in __constant_clear_user()  argument
326 	if (n == 0)  in __constant_clear_user()
328 	else if (n == 1)  in __constant_clear_user()
330 	else if (n == 2)  in __constant_clear_user()
332 	else if (n == 3)  in __constant_clear_user()
334 	else if (n == 4)  in __constant_clear_user()
336 	else if (n == 8)  in __constant_clear_user()
338 	else if (n == 12)  in __constant_clear_user()
340 	else if (n == 16)  in __constant_clear_user()
342 	else if (n == 20)  in __constant_clear_user()
344 	else if (n == 24)  in __constant_clear_user()
347 		ret = __generic_clear_user(to, n);  in __constant_clear_user()
353 #define clear_user(to, n)			\  argument
354 (__builtin_constant_p(n) ?			\
355  __constant_clear_user(to, n) :			\
356  __generic_clear_user(to, n))
358 #define copy_from_user(to, from, n)		\  argument
359 (__builtin_constant_p(n) ?			\
360  __constant_copy_from_user(to, from, n) :	\
361  __generic_copy_from_user(to, from, n))
363 #define copy_to_user(to, from, n)		\  argument
364 (__builtin_constant_p(n) ?			\
365  __constant_copy_to_user(to, from, n) :		\
366  __generic_copy_to_user(to, from, n))
374 				 unsigned long n)  in __generic_copy_from_user_nocheck()  argument
376 	return __copy_user_zeroing(to,from,n);  in __generic_copy_from_user_nocheck()
381 			       unsigned long n)  in __generic_copy_to_user_nocheck()  argument
383 	return __copy_user(to,from,n);  in __generic_copy_to_user_nocheck()
387 __generic_clear_user_nocheck(void __user *to, unsigned long n)  in __generic_clear_user_nocheck()  argument
389 	return __do_clear_user(to,n);  in __generic_clear_user_nocheck()
394 #define __copy_to_user(to,from,n)   __generic_copy_to_user_nocheck((to),(from),(n))  argument
395 #define __copy_from_user(to,from,n) __generic_copy_from_user_nocheck((to),(from),(n))  argument
398 #define __clear_user(to,n) __generic_clear_user_nocheck((to),(n))  argument