diff options
Diffstat (limited to 'drivers/net/spider_net.c')
| -rw-r--r-- | drivers/net/spider_net.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index c99980a..f5ede5f 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -460,13 +460,9 @@ spider_net_prepare_rx_descr(struct spider_net_card *card, hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE; } else { hwdescr->buf_addr = buf; - hwdescr->next_descr_addr = 0; wmb(); hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_NOINTR_COMPLETE; - - wmb(); - descr->prev->hwdescr->next_descr_addr = descr->bus_addr; } return 0; @@ -541,12 +537,16 @@ spider_net_refill_rx_chain(struct spider_net_card *card) static int spider_net_alloc_rx_skbs(struct spider_net_card *card) { - int result; - struct spider_net_descr_chain *chain; + struct spider_net_descr_chain *chain = &card->rx_chain; + struct spider_net_descr *start = chain->tail; + struct spider_net_descr *descr = start; - result = -ENOMEM; + /* Link up the hardware chain pointers */ + do { + descr->prev->hwdescr->next_descr_addr = descr->bus_addr; + descr = descr->next; + } while (descr != start); - chain = &card->rx_chain; /* Put at least one buffer into the chain. if this fails, * we've got a problem. If not, spider_net_refill_rx_chain * will do the rest at the end of this function. */ @@ -563,7 +563,7 @@ spider_net_alloc_rx_skbs(struct spider_net_card *card) error: spider_net_free_rx_chain_contents(card); - return result; + return -ENOMEM; } /** |