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authorBen Hutchings <ben@decadent.org.uk>2014-06-08 23:49:34 +0100
committerDavid S. Miller <davem@davemloft.net>2014-06-11 00:45:29 -0700
commit581d9baa21dbd69b5b02cd654d858d064c400769 (patch)
tree512c8c36b9d5735553817e7aae5d4c80d9dd9be4
parent7e1a61b6c14e7b0816b800038781b9572d5154d4 (diff)
farsync: Fix confusion about DMA address and buffer offset types
Use dma_addr_t for DMA address parameters and u32 for shared memory offset parameters. Do not assume that dma_addr_t is the same as unsigned long; it will not be in PAE configurations. Truncate DMA addresses to 32 bits when printing them. This is OK because the DMA mask for this device is 32-bit (per default). Also rename the DMA address parameters from 'skb' to 'dma'. Compile-tested only. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/wan/farsync.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index 02f6d1cebc15..93ace042d0aa 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -882,20 +882,18 @@ fst_rx_dma_complete(struct fst_card_info *card, struct fst_port_info *port,
* Receive a frame through the DMA
*/
static inline void
-fst_rx_dma(struct fst_card_info *card, dma_addr_t skb,
- dma_addr_t mem, int len)
+fst_rx_dma(struct fst_card_info *card, dma_addr_t dma, u32 mem, int len)
{
/*
* This routine will setup the DMA and start it
*/
- dbg(DBG_RX, "In fst_rx_dma %lx %lx %d\n",
- (unsigned long) skb, (unsigned long) mem, len);
+ dbg(DBG_RX, "In fst_rx_dma %x %x %d\n", (u32)dma, mem, len);
if (card->dmarx_in_progress) {
dbg(DBG_ASS, "In fst_rx_dma while dma in progress\n");
}
- outl(skb, card->pci_conf + DMAPADR0); /* Copy to here */
+ outl(dma, card->pci_conf + DMAPADR0); /* Copy to here */
outl(mem, card->pci_conf + DMALADR0); /* from here */
outl(len, card->pci_conf + DMASIZ0); /* for this length */
outl(0x00000000c, card->pci_conf + DMADPR0); /* In this direction */
@@ -911,20 +909,19 @@ fst_rx_dma(struct fst_card_info *card, dma_addr_t skb,
* Send a frame through the DMA
*/
static inline void
-fst_tx_dma(struct fst_card_info *card, unsigned char *skb,
- unsigned char *mem, int len)
+fst_tx_dma(struct fst_card_info *card, dma_addr_t dma, u32 mem, int len)
{
/*
* This routine will setup the DMA and start it.
*/
- dbg(DBG_TX, "In fst_tx_dma %p %p %d\n", skb, mem, len);
+ dbg(DBG_TX, "In fst_tx_dma %x %x %d\n", (u32)dma, mem, len);
if (card->dmatx_in_progress) {
dbg(DBG_ASS, "In fst_tx_dma while dma in progress\n");
}
- outl((unsigned long) skb, card->pci_conf + DMAPADR1); /* Copy from here */
- outl((unsigned long) mem, card->pci_conf + DMALADR1); /* to here */
+ outl(dma, card->pci_conf + DMAPADR1); /* Copy from here */
+ outl(mem, card->pci_conf + DMALADR1); /* to here */
outl(len, card->pci_conf + DMASIZ1); /* for this length */
outl(0x000000004, card->pci_conf + DMADPR1); /* In this direction */
@@ -1401,9 +1398,7 @@ do_bottom_half_tx(struct fst_card_info *card)
card->dma_len_tx = skb->len;
card->dma_txpos = port->txpos;
fst_tx_dma(card,
- (char *) card->
- tx_dma_handle_card,
- (char *)
+ card->tx_dma_handle_card,
BUF_OFFSET(txBuffer[pi]
[port->txpos][0]),
skb->len);