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ieee1394: eth1394: Move common recv_init code to helper function

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There is some common code between ether1394_open and ether1394_add_host
which can be moved to a separate helper function for a slightly smaller
eth1394 driver (-160 bytes on i386.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Jean Delvare 2007-04-01 10:06:33 +02:00 committed by Stefan Richter
parent 70093cfde8
commit 09d7a96f5a
1 changed files with 32 additions and 41 deletions
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73
drivers/ieee1394/eth1394.c
View file

@ -208,38 +208,45 @@ static struct hpsb_highlevel eth1394_highlevel = {
};
/* This is called after an "ifup" */
static int ether1394_open (struct net_device *dev)
static int ether1394_recv_init(struct net_device *dev)
{
struct eth1394_priv *priv = netdev_priv(dev);
int ret = 0;
priv->iso = hpsb_iso_recv_init(priv->host,
ETHER1394_ISO_BUF_SIZE,
ETHER1394_GASP_BUFFERS,
priv->broadcast_channel,
HPSB_ISO_DMA_PACKET_PER_BUFFER,
1, ether1394_iso);
if (priv->iso == NULL) {
ETH1394_PRINT(KERN_ERR, dev->name,
"Could not allocate isochronous receive "
"context for the broadcast channel\n");
priv->bc_state = ETHER1394_BC_ERROR;
return -EAGAIN;
}
if (hpsb_iso_recv_start(priv->iso, -1, (1 << 3), -1) < 0)
priv->bc_state = ETHER1394_BC_STOPPED;
else
priv->bc_state = ETHER1394_BC_RUNNING;
return 0;
}
/* This is called after an "ifup" */
static int ether1394_open(struct net_device *dev)
{
struct eth1394_priv *priv = netdev_priv(dev);
int ret;
/* Something bad happened, don't even try */
if (priv->bc_state == ETHER1394_BC_ERROR) {
/* we'll try again */
priv->iso = hpsb_iso_recv_init(priv->host,
ETHER1394_ISO_BUF_SIZE,
ETHER1394_GASP_BUFFERS,
priv->broadcast_channel,
HPSB_ISO_DMA_PACKET_PER_BUFFER,
1, ether1394_iso);
if (priv->iso == NULL) {
ETH1394_PRINT(KERN_ERR, dev->name,
"Could not allocate isochronous receive "
"context for the broadcast channel\n");
priv->bc_state = ETHER1394_BC_ERROR;
ret = -EAGAIN;
} else {
if (hpsb_iso_recv_start(priv->iso, -1, (1 << 3), -1) < 0)
priv->bc_state = ETHER1394_BC_STOPPED;
else
priv->bc_state = ETHER1394_BC_RUNNING;
}
ret = ether1394_recv_init(dev);
if (ret)
return ret;
}
if (ret)
return ret;
netif_start_queue (dev);
return 0;
}
@ -628,23 +635,7 @@ static void ether1394_add_host (struct hpsb_host *host)
* be checked when the eth device is opened. */
priv->broadcast_channel = host->csr.broadcast_channel & 0x3f;
priv->iso = hpsb_iso_recv_init(host,
ETHER1394_ISO_BUF_SIZE,
ETHER1394_GASP_BUFFERS,
priv->broadcast_channel,
HPSB_ISO_DMA_PACKET_PER_BUFFER,
1, ether1394_iso);
if (priv->iso == NULL) {
ETH1394_PRINT(KERN_ERR, dev->name,
"Could not allocate isochronous receive context "
"for the broadcast channel\n");
priv->bc_state = ETHER1394_BC_ERROR;
} else {
if (hpsb_iso_recv_start(priv->iso, -1, (1 << 3), -1) < 0)
priv->bc_state = ETHER1394_BC_STOPPED;
else
priv->bc_state = ETHER1394_BC_RUNNING;
}
ether1394_recv_init(dev);
return;
out:
if (dev)