Spidernet Remove unused variable

Remove unused variable; this makes code easier to read.
Tweak commentary.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: James K Lewis <jklewis@us.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Linas Vepstas 2006-12-13 15:19:54 -06:00 committed by Jeff Garzik
parent 80dab7c7e5
commit a4182c50bc

View file

@ -367,21 +367,20 @@ spider_net_free_rx_chain_contents(struct spider_net_card *card)
}
/**
* spider_net_prepare_rx_descr - reinitializes a rx descriptor
* spider_net_prepare_rx_descr - Reinitialize RX descriptor
* @card: card structure
* @descr: descriptor to re-init
*
* return 0 on succes, <0 on failure
* Return 0 on succes, <0 on failure.
*
* allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
* Activate the descriptor state-wise
* Allocates a new rx skb, iommu-maps it and attaches it to the
* descriptor. Mark the descriptor as activated, ready-to-use.
*/
static int
spider_net_prepare_rx_descr(struct spider_net_card *card,
struct spider_net_descr *descr)
{
dma_addr_t buf;
int error = 0;
int offset;
int bufsize;
@ -409,7 +408,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
(SPIDER_NET_RXBUF_ALIGN - 1);
if (offset)
skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset);
/* io-mmu-map the skb */
/* iommu-map the skb */
buf = pci_map_single(card->pdev, descr->skb->data,
SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
descr->buf_addr = buf;
@ -424,7 +423,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
SPIDER_NET_DMAC_NOINTR_COMPLETE;
}
return error;
return 0;
}
/**