196 	unsigned long ret;  in kfifo_copy_from_user()  local
206 	ret = copy_from_user(fifo->data + off, from, l);  in kfifo_copy_from_user()
207 	if (unlikely(ret))  in kfifo_copy_from_user()
208 		ret = DIV_ROUND_UP(ret + len - l, esize);  in kfifo_copy_from_user()
210 		ret = copy_from_user(fifo->data, from + l, len - l);  in kfifo_copy_from_user()
211 		if (unlikely(ret))  in kfifo_copy_from_user()
212 			ret = DIV_ROUND_UP(ret, esize);  in kfifo_copy_from_user()
219 	*copied = len - ret * esize;  in kfifo_copy_from_user()
221 	return ret;  in kfifo_copy_from_user()
228 	unsigned long ret;  in __kfifo_from_user()  local
239 	ret = kfifo_copy_from_user(fifo, from, len, fifo->in, copied);  in __kfifo_from_user()
240 	if (unlikely(ret)) {  in __kfifo_from_user()
241 		len -= ret;  in __kfifo_from_user()
254 	unsigned long ret;  in kfifo_copy_to_user()  local
266 	ret = copy_to_user(to, fifo->data + off, l);  in kfifo_copy_to_user()
267 	if (unlikely(ret))  in kfifo_copy_to_user()
268 		ret = DIV_ROUND_UP(ret + len - l, esize);  in kfifo_copy_to_user()
270 		ret = copy_to_user(to + l, fifo->data, len - l);  in kfifo_copy_to_user()
271 		if (unlikely(ret))  in kfifo_copy_to_user()
272 			ret = DIV_ROUND_UP(ret, esize);  in kfifo_copy_to_user()
279 	*copied = len - ret * esize;  in kfifo_copy_to_user()
281 	return ret;  in kfifo_copy_to_user()
288 	unsigned long ret;  in __kfifo_to_user()  local
298 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out, copied);  in __kfifo_to_user()
299 	if (unlikely(ret)) {  in __kfifo_to_user()
300 		len -= ret;  in __kfifo_to_user()
516 	unsigned long ret;  in __kfifo_from_user_r()  local
527 	ret = kfifo_copy_from_user(fifo, from, len, fifo->in + recsize, copied);  in __kfifo_from_user_r()
528 	if (unlikely(ret)) {  in __kfifo_from_user_r()
540 	unsigned long ret;  in __kfifo_to_user_r()  local
552 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out + recsize, copied);  in __kfifo_to_user_r()
553 	if (unlikely(ret)) {  in __kfifo_to_user_r()