182 	unsigned long ret;  in kfifo_copy_from_user()  local
192 	ret = copy_from_user(fifo->data + off, from, l);  in kfifo_copy_from_user()
193 	if (unlikely(ret))  in kfifo_copy_from_user()
194 		ret = DIV_ROUND_UP(ret + len - l, esize);  in kfifo_copy_from_user()
196 		ret = copy_from_user(fifo->data, from + l, len - l);  in kfifo_copy_from_user()
197 		if (unlikely(ret))  in kfifo_copy_from_user()
198 			ret = DIV_ROUND_UP(ret, esize);  in kfifo_copy_from_user()
205 	*copied = len - ret * esize;  in kfifo_copy_from_user()
207 	return ret;  in kfifo_copy_from_user()
214 	unsigned long ret;  in __kfifo_from_user()  local
225 	ret = kfifo_copy_from_user(fifo, from, len, fifo->in, copied);  in __kfifo_from_user()
226 	if (unlikely(ret)) {  in __kfifo_from_user()
227 		len -= ret;  in __kfifo_from_user()
240 	unsigned long ret;  in kfifo_copy_to_user()  local
252 	ret = copy_to_user(to, fifo->data + off, l);  in kfifo_copy_to_user()
253 	if (unlikely(ret))  in kfifo_copy_to_user()
254 		ret = DIV_ROUND_UP(ret + len - l, esize);  in kfifo_copy_to_user()
256 		ret = copy_to_user(to + l, fifo->data, len - l);  in kfifo_copy_to_user()
257 		if (unlikely(ret))  in kfifo_copy_to_user()
258 			ret = DIV_ROUND_UP(ret, esize);  in kfifo_copy_to_user()
265 	*copied = len - ret * esize;  in kfifo_copy_to_user()
267 	return ret;  in kfifo_copy_to_user()
274 	unsigned long ret;  in __kfifo_to_user()  local
284 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out, copied);  in __kfifo_to_user()
285 	if (unlikely(ret)) {  in __kfifo_to_user()
286 		len -= ret;  in __kfifo_to_user()
502 	unsigned long ret;  in __kfifo_from_user_r()  local
513 	ret = kfifo_copy_from_user(fifo, from, len, fifo->in + recsize, copied);  in __kfifo_from_user_r()
514 	if (unlikely(ret)) {  in __kfifo_from_user_r()
526 	unsigned long ret;  in __kfifo_to_user_r()  local
538 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out + recsize, copied);  in __kfifo_to_user_r()
539 	if (unlikely(ret)) {  in __kfifo_to_user_r()