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[PATCH] pcnet_cs cleanup 

killed abuse of ->rmem_end

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
This commit is contained in:
Al Viro 2005-04-03 09:15:52 +01:00 committed by Jeff Garzik
parent 507ef165e8
commit 99417769ba
1 changed files with 9 additions and 8 deletions
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17
drivers/net/pcmcia/pcnet_cs.c
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@ -1537,20 +1537,20 @@ static void shmem_get_8390_hdr(struct net_device *dev,
static void shmem_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset)
{
void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8)
+ ring_offset
void __iomem *base = ei_status.mem;
unsigned long offset = (TX_PAGES<<8) + ring_offset
- (ei_status.rx_start_page << 8);
char *buf = skb->data;
if (xfer_start + count > (void __iomem *)ei_status.rmem_end) {
if (offset + count > ei_status.priv) {
/* We must wrap the input move. */
int semi_count = (void __iomem *)ei_status.rmem_end - xfer_start;
copyin(buf, xfer_start, semi_count);
int semi_count = ei_status.priv - offset;
copyin(buf, base + offset, semi_count);
buf += semi_count;
xfer_start = ei_status.mem + (TX_PAGES<<8);
offset = TX_PAGES<<8;
count -= semi_count;
}
copyin(buf, xfer_start, count);
copyin(buf, base + offset, count);
}
/*====================================================================*/
@ -1611,8 +1611,9 @@ static int setup_shmem_window(dev_link_t *link, int start_pg,
}
ei_status.mem = info->base + offset;
ei_status.priv = req.Size;
dev->mem_start = (u_long)ei_status.mem;
dev->mem_end = ei_status.rmem_end = (u_long)info->base + req.Size;
dev->mem_end = dev->mem_start + req.Size;
ei_status.tx_start_page = start_pg;
ei_status.rx_start_page = start_pg + TX_PAGES;