e100: Do pci_dma_sync after skb_alloc for proper operation on ixp4xx
authorKevin Hao <kexin.hao@windriver.com>
Sat, 21 Jun 2008 10:20:35 +0000 (18:20 +0800)
committerJeff Garzik <jgarzik@redhat.com>
Fri, 27 Jun 2008 05:30:59 +0000 (01:30 -0400)
The E100 device can't work on current kernel (2.6.26-rc6) and will cause
kernel corruption on intel ixdp4xx.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/net/e100.c

index f3cba5e24ec511a7a08ea6c0659155850a165b00..1037b1332312998aa36274b279381263419f0371 100644 (file)
@@ -1803,6 +1803,8 @@ static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
        if (rx->prev->skb) {
                struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data;
                put_unaligned_le32(rx->dma_addr, &prev_rfd->link);
+               pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr,
+                       sizeof(struct rfd), PCI_DMA_TODEVICE);
        }
 
        return 0;