net: fec: use container_of to resolve bufdesc_ex from bufdesc

Use container_of instead of casting first structure member.

ARM cross-compiled but untested.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Fabian Frederick 2014-09-13 22:38:26 +02:00 committed by David S. Miller
parent c0d1379a19
commit 61cd2ebb35

View File

@ -591,7 +591,7 @@ fec_enet_txq_put_data_tso(struct fec_enet_priv_tx_q *txq, struct sk_buff *skb,
struct fec_enet_private *fep = netdev_priv(ndev);
const struct platform_device_id *id_entry =
platform_get_device_id(fep->pdev);
struct bufdesc_ex *ebdp = (struct bufdesc_ex *)bdp;
struct bufdesc_ex *ebdp = container_of(bdp, struct bufdesc_ex, desc);
unsigned short status;
unsigned int estatus = 0;
dma_addr_t addr;
@ -651,7 +651,7 @@ fec_enet_txq_put_hdr_tso(struct fec_enet_priv_tx_q *txq,
const struct platform_device_id *id_entry =
platform_get_device_id(fep->pdev);
int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
struct bufdesc_ex *ebdp = (struct bufdesc_ex *)bdp;
struct bufdesc_ex *ebdp = container_of(bdp, struct bufdesc_ex, desc);
void *bufaddr;
unsigned long dmabuf;
unsigned short status;