Commit f3d27ae0 authored by Shenwei Wang's avatar Shenwei Wang Committed by Jakub Kicinski
Browse files

net: fec: remove the unused functions 



Removed those unused functions since we simplified the driver
by using the page pool to manage RX buffers.

Signed-off-by: default avatarShenwei Wang <shenwei.wang@nxp.com>
Link: https://lore.kernel.org/r/20221017161236.1563975-1-shenwei.wang@nxp.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent a2fd0844

drivers/net/ethernet/freescale/fec_main.c

+0 −57
Original line number Diff line number Diff line
@@ -365,16 +365,6 @@ static void swap_buffer(void *bufaddr, int len) 
		swab32s(buf);

}



static void swap_buffer2(void *dst_buf, void *src_buf, int len)

{

	int i;

	unsigned int *src = src_buf;

	unsigned int *dst = dst_buf;



	for (i = 0; i < len; i += 4, src++, dst++)

		*dst = swab32p(src);

}



static void fec_dump(struct net_device *ndev)

{

	struct fec_enet_private *fep = netdev_priv(ndev);
@@ -1494,53 +1484,6 @@ static void fec_enet_tx(struct net_device *ndev) 
		fec_enet_tx_queue(ndev, i);

}



static int __maybe_unused

fec_enet_new_rxbdp(struct net_device *ndev, struct bufdesc *bdp, struct sk_buff *skb)

{

	struct  fec_enet_private *fep = netdev_priv(ndev);

	int off;



	off = ((unsigned long)skb->data) & fep->rx_align;

	if (off)

		skb_reserve(skb, fep->rx_align + 1 - off);



	bdp->cbd_bufaddr = cpu_to_fec32(dma_map_single(&fep->pdev->dev, skb->data, FEC_ENET_RX_FRSIZE - fep->rx_align, DMA_FROM_DEVICE));

	if (dma_mapping_error(&fep->pdev->dev, fec32_to_cpu(bdp->cbd_bufaddr))) {

		if (net_ratelimit())

			netdev_err(ndev, "Rx DMA memory map failed\n");

		return -ENOMEM;

	}



	return 0;

}



static bool __maybe_unused

fec_enet_copybreak(struct net_device *ndev, struct sk_buff **skb,

		   struct bufdesc *bdp, u32 length, bool swap)

{

	struct  fec_enet_private *fep = netdev_priv(ndev);

	struct sk_buff *new_skb;



	if (length > fep->rx_copybreak)

		return false;



	new_skb = netdev_alloc_skb(ndev, length);

	if (!new_skb)

		return false;



	dma_sync_single_for_cpu(&fep->pdev->dev,

				fec32_to_cpu(bdp->cbd_bufaddr),

				FEC_ENET_RX_FRSIZE - fep->rx_align,

				DMA_FROM_DEVICE);

	if (!swap)

		memcpy(new_skb->data, (*skb)->data, length);

	else

		swap_buffer2(new_skb->data, (*skb)->data, length);

	*skb = new_skb;



	return true;

}



static void fec_enet_update_cbd(struct fec_enet_priv_rx_q *rxq,

				struct bufdesc *bdp, int index)

{