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authorAl Viro <viro@ftp.linux.org.uk>2007-12-16 20:53:36 +0000
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:07:08 -0800
commitb710b43c306650261c01ad08100791afec78a7db (patch)
tree656c18e9d3736b84b56c1f91303c28207c424951 /drivers/net/tokenring/olympic.c
parentf5a3ea6f966700ae82504202fdd827f2d3c79e66 (diff)
downloadlinux-linaro-android-b710b43c306650261c01ad08100791afec78a7db.tar.gz
endianness annotations and fixes for olympic
* missing braces in !readl(...) & ... * trivial endianness annotations * in olympic_arb_cmd() the loop collecting fragments of packet is b0rken on big-endian - we have (next_ptr && (buf_ptr=olympic_priv->olympic_lap + ntohs(next_ptr))) as condition and it should have swab16(), not ntohs() - it's host-endian byteswapped, not big-endian. So if we get more than one fragment on big-endian host, we get screwed. This ntohs() got missed back when the rest of those had been switched to swab16() in 2.4.0-test2-pre1 - at a guess, nobody had hit fragmented packets during the testing of PPC fixes. PS: Ken Aaker cc'd on assumption that he is the same guy who'd done the original set of PPC fixes in olympic Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/tokenring/olympic.c')
-rw-r--r--drivers/net/tokenring/olympic.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/tokenring/olympic.c b/drivers/net/tokenring/olympic.c
index 74c1f0f189f..e7b4adc5c4e 100644
--- a/drivers/net/tokenring/olympic.c
+++ b/drivers/net/tokenring/olympic.c
@@ -357,7 +357,7 @@ static int __devinit olympic_init(struct net_device *dev)
if(!(readl(olympic_mmio+BCTL) & BCTL_MODE_INDICATOR)) {
t=jiffies;
- while (!readl(olympic_mmio+CLKCTL) & CLKCTL_PAUSE) {
+ while (!(readl(olympic_mmio+CLKCTL) & CLKCTL_PAUSE)) {
schedule() ;
if(time_after(jiffies, t + 2*HZ)) {
printk(KERN_ERR "IBM Cardbus tokenring adapter not responsing.\n") ;
@@ -671,7 +671,7 @@ static int olympic_open(struct net_device *dev)
writel(BMCTL_TX1_DIS,olympic_mmio+BMCTL_RWM); /* Yes, this enables TX channel 1 */
for(i=0;i<OLYMPIC_TX_RING_SIZE;i++)
- olympic_priv->olympic_tx_ring[i].buffer=0xdeadbeef;
+ olympic_priv->olympic_tx_ring[i].buffer=cpu_to_le32(0xdeadbeef);
olympic_priv->free_tx_ring_entries=OLYMPIC_TX_RING_SIZE;
olympic_priv->tx_ring_dma_addr = pci_map_single(olympic_priv->pdev,olympic_priv->olympic_tx_ring,
@@ -897,7 +897,7 @@ static void olympic_freemem(struct net_device *dev)
dev_kfree_skb_irq(olympic_priv->rx_ring_skb[olympic_priv->rx_status_last_received]);
olympic_priv->rx_ring_skb[olympic_priv->rx_status_last_received] = NULL;
}
- if (olympic_priv->olympic_rx_ring[olympic_priv->rx_status_last_received].buffer != 0xdeadbeef) {
+ if (olympic_priv->olympic_rx_ring[olympic_priv->rx_status_last_received].buffer != cpu_to_le32(0xdeadbeef)) {
pci_unmap_single(olympic_priv->pdev,
le32_to_cpu(olympic_priv->olympic_rx_ring[olympic_priv->rx_status_last_received].buffer),
olympic_priv->pkt_buf_sz, PCI_DMA_FROMDEVICE);
@@ -983,7 +983,7 @@ static irqreturn_t olympic_interrupt(int irq, void *dev_id)
le32_to_cpu(olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_last_status].buffer),
olympic_priv->tx_ring_skb[olympic_priv->tx_ring_last_status]->len,PCI_DMA_TODEVICE);
dev_kfree_skb_irq(olympic_priv->tx_ring_skb[olympic_priv->tx_ring_last_status]);
- olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_last_status].buffer=0xdeadbeef;
+ olympic_priv->olympic_tx_ring[olympic_priv->tx_ring_last_status].buffer=cpu_to_le32(0xdeadbeef);
olympic_priv->olympic_tx_status_ring[olympic_priv->tx_ring_last_status].status=0;
}
netif_wake_queue(dev);
@@ -1432,7 +1432,7 @@ static void olympic_arb_cmd(struct net_device *dev)
buffer_len = swab16(readw(buf_ptr+offsetof(struct mac_receive_buffer,buffer_length)));
memcpy_fromio(skb_put(mac_frame, buffer_len), frame_data , buffer_len ) ;
next_ptr=readw(buf_ptr+offsetof(struct mac_receive_buffer,next));
- } while (next_ptr && (buf_ptr=olympic_priv->olympic_lap + ntohs(next_ptr)));
+ } while (next_ptr && (buf_ptr=olympic_priv->olympic_lap + swab16(next_ptr)));
mac_frame->protocol = tr_type_trans(mac_frame, dev);