Esempi in C++ (Cpp) per FREE_AFTER_TX

Esempio n. 1

File: p54spi.c Progetto: Atrix-Dev-Team/kernel-MB860

static int p54spi_tx_frame(struct p54s_priv *priv, struct sk_buff *skb)
{
	struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
	int ret = 0;

	if (p54spi_wakeup(priv) < 0)
		return -EBUSY;

	ret = p54spi_spi_write_dma(priv, hdr->req_id, skb->data, skb->len);
	if (ret < 0)
		goto out;

	if (!p54spi_wait_bit(priv, SPI_ADRS_HOST_INTERRUPTS,
			     SPI_HOST_INT_WR_READY)) {
		dev_err(&priv->spi->dev, "WR_READY timeout\n");
		ret = -EAGAIN;
		goto out;
	}

	p54spi_int_ack(priv, SPI_HOST_INT_WR_READY);

	if (FREE_AFTER_TX(skb))
		p54_free_skb(priv->hw, skb);
out:
	p54spi_sleep(priv);
	return ret;
}

Esempio n. 2

File: p54pci.c Progetto: 383530895/linux

static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index,
	int ring_index, struct p54p_desc *ring, u32 ring_limit,
	struct sk_buff **tx_buf)
{
	struct p54p_priv *priv = dev->priv;
	struct p54p_ring_control *ring_control = priv->ring_control;
	struct p54p_desc *desc;
	struct sk_buff *skb;
	u32 idx, i;

	i = (*index) % ring_limit;
	(*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]);
	idx %= ring_limit;

	while (i != idx) {
		desc = &ring[i];

		skb = tx_buf[i];
		tx_buf[i] = NULL;

		pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr),
				 le16_to_cpu(desc->len), PCI_DMA_TODEVICE);

		desc->host_addr = 0;
		desc->device_addr = 0;
		desc->len = 0;
		desc->flags = 0;

		if (skb && FREE_AFTER_TX(skb))
			p54_free_skb(dev, skb);

		i++;
		i %= ring_limit;
	}
}