diff options
| -rw-r--r-- | drivers/net/spider_net.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index f58741239196..96a7e771daa4 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -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; } /** |