35 	return (fifo->mask + 1) - (fifo->in - fifo->out);  in kfifo_unused()
48 	fifo->out = 0;  in __kfifo_alloc()
73 	fifo->out = 0;  in __kfifo_free()
88 	fifo->out = 0;  in __kfifo_init()
170 	l = fifo->in - fifo->out;  in __kfifo_out_peek()
174 	kfifo_copy_out(fifo, buf, len, fifo->out);  in __kfifo_out_peek()
183 	fifo->out += len;  in __kfifo_out()
294 	l = fifo->in - fifo->out;  in __kfifo_to_user()
297 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out, copied);  in __kfifo_to_user()
303 	fifo->out += len;  in __kfifo_to_user()
387 	l = fifo->in - fifo->out;  in __kfifo_dma_out_prepare()
391 	return setup_sgl(fifo, sgl, nents, len, fifo->out);  in __kfifo_dma_out_prepare()
405 #define	__KFIFO_PEEK(data, out, mask) \  argument
406 	((data)[(out) & (mask)])
417 	l = __KFIFO_PEEK(data, fifo->out, mask);  in __kfifo_peek_n()
420 		l |= __KFIFO_PEEK(data, fifo->out + 1, mask) << 8;  in __kfifo_peek_n()
473 	kfifo_copy_out(fifo, buf, len, fifo->out + recsize);  in kfifo_out_copy_r()
482 	if (fifo->in == fifo->out)  in __kfifo_out_peek_r()
494 	if (fifo->in == fifo->out)  in __kfifo_out_r()
498 	fifo->out += n + recsize;  in __kfifo_out_r()
508 	fifo->out += n + recsize;  in __kfifo_skip_r()
542 	if (fifo->in == fifo->out) {  in __kfifo_to_user_r()
551 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out + recsize, copied);  in __kfifo_to_user_r()
556 	fifo->out += n + recsize;  in __kfifo_to_user_r()
591 	if (len + recsize > fifo->in - fifo->out)  in __kfifo_dma_out_prepare_r()
594 	return setup_sgl(fifo, sgl, nents, len, fifo->out + recsize);  in __kfifo_dma_out_prepare_r()
603 	fifo->out += len + recsize;  in __kfifo_dma_out_finish_r()