提交 77783a78 编写于 作者: S Stephen Hemminger 提交者: Jeff Garzik

[PATCH] skge: fix dma mask setup.

There are a couple of problems in the DMA setup code for skge.
* In the 64 bit case, it doesn't set the consistent mask.
* In the 32 bit case, the error check is backwards!
It likely will only be visible as a bug on 64 bit platforms.
Signed-off-by: NStephen Hemminger <shemminger@osdl.org>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>
上级 22d4d771
......@@ -3243,12 +3243,22 @@ static int __devinit skge_probe(struct pci_dev *pdev,
pci_set_master(pdev);
if (!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK)))
if (sizeof(dma_addr_t) > sizeof(u32) &&
!(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
using_dac = 1;
else if (!(err = pci_set_dma_mask(pdev, DMA_32BIT_MASK))) {
printk(KERN_ERR PFX "%s no usable DMA configuration\n",
pci_name(pdev));
goto err_out_free_regions;
err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
if (err < 0) {
printk(KERN_ERR PFX "%s unable to obtain 64 bit DMA "
"for consistent allocations\n", pci_name(pdev));
goto err_out_free_regions;
}
} else {
err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (err) {
printk(KERN_ERR PFX "%s no usable DMA configuration\n",
pci_name(pdev));
goto err_out_free_regions;
}
}
#ifdef __BIG_ENDIAN
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册