21 	return (fifo->mask + 1) - (fifo->in - fifo->out);  in kfifo_unused()
34 	fifo->out = 0;  in __kfifo_alloc()
59 	fifo->out = 0;  in __kfifo_free()
75 	fifo->out = 0;  in __kfifo_init()
157 	l = fifo->in - fifo->out;  in __kfifo_out_peek()
161 	kfifo_copy_out(fifo, buf, len, fifo->out);  in __kfifo_out_peek()
170 	fifo->out += len;  in __kfifo_out()
281 	l = fifo->in - fifo->out;  in __kfifo_to_user()
284 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out, copied);  in __kfifo_to_user()
290 	fifo->out += len;  in __kfifo_to_user()
374 	l = fifo->in - fifo->out;  in __kfifo_dma_out_prepare()
378 	return setup_sgl(fifo, sgl, nents, len, fifo->out);  in __kfifo_dma_out_prepare()
392 #define	__KFIFO_PEEK(data, out, mask) \  argument
393 	((data)[(out) & (mask)])
404 	l = __KFIFO_PEEK(data, fifo->out, mask);  in __kfifo_peek_n()
407 		l |= __KFIFO_PEEK(data, fifo->out + 1, mask) << 8;  in __kfifo_peek_n()
460 	kfifo_copy_out(fifo, buf, len, fifo->out + recsize);  in kfifo_out_copy_r()
469 	if (fifo->in == fifo->out)  in __kfifo_out_peek_r()
481 	if (fifo->in == fifo->out)  in __kfifo_out_r()
485 	fifo->out += n + recsize;  in __kfifo_out_r()
495 	fifo->out += n + recsize;  in __kfifo_skip_r()
529 	if (fifo->in == fifo->out) {  in __kfifo_to_user_r()
538 	ret = kfifo_copy_to_user(fifo, to, len, fifo->out + recsize, copied);  in __kfifo_to_user_r()
543 	fifo->out += n + recsize;  in __kfifo_to_user_r()
578 	if (len + recsize > fifo->in - fifo->out)  in __kfifo_dma_out_prepare_r()
581 	return setup_sgl(fifo, sgl, nents, len, fifo->out + recsize);  in __kfifo_dma_out_prepare_r()
590 	fifo->out += len + recsize;  in __kfifo_dma_out_finish_r()