drivers/net/arcnet/capmode.c: clean up code
- shuffle around functions to get rid of forward declarations - fix some CodingStyle and indentation issues - last but not least, get rid of the following CONFIG_MODULE=n warning: drivers/net/arcnet/capmode.c:52: warning: ‘capmode_proto’ defined but not used Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Mack
David S. Miller
parent
38117d1495
commit
0da529a7d9
1 changed files with 79 additions and 100 deletions
|
|
@ -37,69 +37,6 @@
|
|||
|
||||
#define VERSION "arcnet: cap mode (`c') encapsulation support loaded.\n"
|
||||
|
||||
|
||||
static void rx(struct net_device *dev, int bufnum,
|
||||
struct archdr *pkthdr, int length);
|
||||
static int build_header(struct sk_buff *skb,
|
||||
struct net_device *dev,
|
||||
unsigned short type,
|
||||
uint8_t daddr);
|
||||
static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
|
||||
int bufnum);
|
||||
static int ack_tx(struct net_device *dev, int acked);
|
||||
|
||||
|
||||
static struct ArcProto capmode_proto =
|
||||
{
|
||||
'r',
|
||||
XMTU,
|
||||
0,
|
||||
rx,
|
||||
build_header,
|
||||
prepare_tx,
|
||||
NULL,
|
||||
ack_tx
|
||||
};
|
||||
|
||||
|
||||
static void arcnet_cap_init(void)
|
||||
{
|
||||
int count;
|
||||
|
||||
for (count = 1; count <= 8; count++)
|
||||
if (arc_proto_map[count] == arc_proto_default)
|
||||
arc_proto_map[count] = &capmode_proto;
|
||||
|
||||
/* for cap mode, we only set the bcast proto if there's no better one */
|
||||
if (arc_bcast_proto == arc_proto_default)
|
||||
arc_bcast_proto = &capmode_proto;
|
||||
|
||||
arc_proto_default = &capmode_proto;
|
||||
arc_raw_proto = &capmode_proto;
|
||||
}
|
||||
|
||||
|
||||
#ifdef MODULE
|
||||
|
||||
static int __init capmode_module_init(void)
|
||||
{
|
||||
printk(VERSION);
|
||||
arcnet_cap_init();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit capmode_module_exit(void)
|
||||
{
|
||||
arcnet_unregister_proto(&capmode_proto);
|
||||
}
|
||||
module_init(capmode_module_init);
|
||||
module_exit(capmode_module_exit);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
#endif /* MODULE */
|
||||
|
||||
|
||||
|
||||
/* packet receiver */
|
||||
static void rx(struct net_device *dev, int bufnum,
|
||||
struct archdr *pkthdr, int length)
|
||||
|
|
@ -231,65 +168,107 @@ static int prepare_tx(struct net_device *dev, struct archdr *pkt, int length,
|
|||
BUGMSG(D_DURING, "prepare_tx: length=%d ofs=%d\n",
|
||||
length,ofs);
|
||||
|
||||
// Copy the arcnet-header + the protocol byte down:
|
||||
/* Copy the arcnet-header + the protocol byte down: */
|
||||
lp->hw.copy_to_card(dev, bufnum, 0, hard, ARC_HDR_SIZE);
|
||||
lp->hw.copy_to_card(dev, bufnum, ofs, &pkt->soft.cap.proto,
|
||||
sizeof(pkt->soft.cap.proto));
|
||||
|
||||
// Skip the extra integer we have written into it as a cookie
|
||||
// but write the rest of the message:
|
||||
/* Skip the extra integer we have written into it as a cookie
|
||||
but write the rest of the message: */
|
||||
lp->hw.copy_to_card(dev, bufnum, ofs+1,
|
||||
((unsigned char*)&pkt->soft.cap.mes),length-1);
|
||||
|
||||
lp->lastload_dest = hard->dest;
|
||||
|
||||
return 1; /* done */
|
||||
return 1; /* done */
|
||||
}
|
||||
|
||||
|
||||
static int ack_tx(struct net_device *dev, int acked)
|
||||
{
|
||||
struct arcnet_local *lp = netdev_priv(dev);
|
||||
struct sk_buff *ackskb;
|
||||
struct archdr *ackpkt;
|
||||
int length=sizeof(struct arc_cap);
|
||||
struct arcnet_local *lp = netdev_priv(dev);
|
||||
struct sk_buff *ackskb;
|
||||
struct archdr *ackpkt;
|
||||
int length=sizeof(struct arc_cap);
|
||||
|
||||
BUGMSG(D_DURING, "capmode: ack_tx: protocol: %x: result: %d\n",
|
||||
lp->outgoing.skb->protocol, acked);
|
||||
BUGMSG(D_DURING, "capmode: ack_tx: protocol: %x: result: %d\n",
|
||||
lp->outgoing.skb->protocol, acked);
|
||||
|
||||
BUGLVL(D_SKB) arcnet_dump_skb(dev, lp->outgoing.skb, "ack_tx");
|
||||
BUGLVL(D_SKB) arcnet_dump_skb(dev, lp->outgoing.skb, "ack_tx");
|
||||
|
||||
/* Now alloc a skb to send back up through the layers: */
|
||||
ackskb = alloc_skb(length + ARC_HDR_SIZE , GFP_ATOMIC);
|
||||
if (ackskb == NULL) {
|
||||
BUGMSG(D_NORMAL, "Memory squeeze, can't acknowledge.\n");
|
||||
goto free_outskb;
|
||||
}
|
||||
/* Now alloc a skb to send back up through the layers: */
|
||||
ackskb = alloc_skb(length + ARC_HDR_SIZE , GFP_ATOMIC);
|
||||
if (ackskb == NULL) {
|
||||
BUGMSG(D_NORMAL, "Memory squeeze, can't acknowledge.\n");
|
||||
goto free_outskb;
|
||||
}
|
||||
|
||||
skb_put(ackskb, length + ARC_HDR_SIZE );
|
||||
ackskb->dev = dev;
|
||||
skb_put(ackskb, length + ARC_HDR_SIZE );
|
||||
ackskb->dev = dev;
|
||||
|
||||
skb_reset_mac_header(ackskb);
|
||||
ackpkt = (struct archdr *)skb_mac_header(ackskb);
|
||||
/* skb_pull(ackskb, ARC_HDR_SIZE); */
|
||||
skb_reset_mac_header(ackskb);
|
||||
ackpkt = (struct archdr *)skb_mac_header(ackskb);
|
||||
/* skb_pull(ackskb, ARC_HDR_SIZE); */
|
||||
|
||||
skb_copy_from_linear_data(lp->outgoing.skb, ackpkt,
|
||||
ARC_HDR_SIZE + sizeof(struct arc_cap));
|
||||
ackpkt->soft.cap.proto = 0; /* using protocol 0 for acknowledge */
|
||||
ackpkt->soft.cap.mes.ack=acked;
|
||||
|
||||
skb_copy_from_linear_data(lp->outgoing.skb, ackpkt,
|
||||
ARC_HDR_SIZE + sizeof(struct arc_cap));
|
||||
ackpkt->soft.cap.proto=0; /* using protocol 0 for acknowledge */
|
||||
ackpkt->soft.cap.mes.ack=acked;
|
||||
BUGMSG(D_PROTO, "Ackknowledge for cap packet %x.\n",
|
||||
*((int*)&ackpkt->soft.cap.cookie[0]));
|
||||
|
||||
BUGMSG(D_PROTO, "Ackknowledge for cap packet %x.\n",
|
||||
*((int*)&ackpkt->soft.cap.cookie[0]));
|
||||
ackskb->protocol = cpu_to_be16(ETH_P_ARCNET);
|
||||
|
||||
ackskb->protocol = cpu_to_be16(ETH_P_ARCNET);
|
||||
BUGLVL(D_SKB) arcnet_dump_skb(dev, ackskb, "ack_tx_recv");
|
||||
netif_rx(ackskb);
|
||||
|
||||
BUGLVL(D_SKB) arcnet_dump_skb(dev, ackskb, "ack_tx_recv");
|
||||
netif_rx(ackskb);
|
||||
free_outskb:
|
||||
dev_kfree_skb_irq(lp->outgoing.skb);
|
||||
lp->outgoing.proto = NULL; /* We are always finished when in this protocol */
|
||||
|
||||
free_outskb:
|
||||
dev_kfree_skb_irq(lp->outgoing.skb);
|
||||
lp->outgoing.proto = NULL; /* We are always finished when in this protocol */
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct ArcProto capmode_proto =
|
||||
{
|
||||
'r',
|
||||
XMTU,
|
||||
0,
|
||||
rx,
|
||||
build_header,
|
||||
prepare_tx,
|
||||
NULL,
|
||||
ack_tx
|
||||
};
|
||||
|
||||
static void arcnet_cap_init(void)
|
||||
{
|
||||
int count;
|
||||
|
||||
for (count = 1; count <= 8; count++)
|
||||
if (arc_proto_map[count] == arc_proto_default)
|
||||
arc_proto_map[count] = &capmode_proto;
|
||||
|
||||
/* for cap mode, we only set the bcast proto if there's no better one */
|
||||
if (arc_bcast_proto == arc_proto_default)
|
||||
arc_bcast_proto = &capmode_proto;
|
||||
|
||||
arc_proto_default = &capmode_proto;
|
||||
arc_raw_proto = &capmode_proto;
|
||||
}
|
||||
|
||||
static int __init capmode_module_init(void)
|
||||
{
|
||||
printk(VERSION);
|
||||
arcnet_cap_init();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit capmode_module_exit(void)
|
||||
{
|
||||
arcnet_unregister_proto(&capmode_proto);
|
||||
}
|
||||
module_init(capmode_module_init);
|
||||
module_exit(capmode_module_exit);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
|
|||
Loading…
Reference in a new issue