[PATCH] spidernet: fix HW structures for 64 bit dma_addr_t
The driver incorrectly used dma_addr_t to describe
HW structures and consequently broke when that type
was changed in 2.6.15-rc.
This changed spidernet to use u32 for 32 bit HW defined
structure elements.
From: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 94e238f..8696919 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -480,6 +480,7 @@
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;
@@ -510,10 +511,11 @@
if (offset)
skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset);
/* io-mmu-map the skb */
- descr->buf_addr = pci_map_single(card->pdev, descr->skb->data,
+ buf = pci_map_single(card->pdev, descr->skb->data,
SPIDER_NET_MAX_MTU,
PCI_DMA_BIDIRECTIONAL);
- if (descr->buf_addr == DMA_ERROR_CODE) {
+ descr->buf_addr = buf;
+ if (buf == DMA_ERROR_CODE) {
dev_kfree_skb_any(descr->skb);
if (netif_msg_rx_err(card))
pr_err("Could not iommu-map rx buffer\n");
@@ -914,15 +916,16 @@
struct spider_net_descr *descr,
struct sk_buff *skb)
{
- descr->buf_addr = pci_map_single(card->pdev, skb->data,
- skb->len, PCI_DMA_BIDIRECTIONAL);
- if (descr->buf_addr == DMA_ERROR_CODE) {
+ dma_addr_t buf = pci_map_single(card->pdev, skb->data,
+ skb->len, PCI_DMA_BIDIRECTIONAL);
+ if (buf == DMA_ERROR_CODE) {
if (netif_msg_tx_err(card))
pr_err("could not iommu-map packet (%p, %i). "
"Dropping packet\n", skb->data, skb->len);
return -ENOMEM;
}
+ descr->buf_addr = buf;
descr->buf_size = skb->len;
descr->skb = skb;
descr->data_status = 0;
diff --git a/drivers/net/spider_net.h b/drivers/net/spider_net.h
index 22b2f23..98f11ec 100644
--- a/drivers/net/spider_net.h
+++ b/drivers/net/spider_net.h
@@ -373,9 +373,9 @@
struct spider_net_descr {
/* as defined by the hardware */
- dma_addr_t buf_addr;
+ u32 buf_addr;
u32 buf_size;
- dma_addr_t next_descr_addr;
+ u32 next_descr_addr;
u32 dmac_cmd_status;
u32 result_size;
u32 valid_size; /* all zeroes for tx */