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authorJesse Brandeburg <jesse.brandeburg@intel.com>2008-07-08 15:51:37 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-07-11 01:20:27 -0400
commit34336635467c5102777ea8acf34fc8bf391f98c0 (patch)
tree62476f5b198ec0fc30bae6cf76628f1a07a246e6 /drivers/net/ixgb
parenta65a604a01f710defe01f2322e108f4d8c20f6ce (diff)
downloadop-kernel-dev-34336635467c5102777ea8acf34fc8bf391f98c0.zip
op-kernel-dev-34336635467c5102777ea8acf34fc8bf391f98c0.tar.gz
ixgb: move time stamp set before setting dma pointer
a user pointed out that setting variables out of order with respect to the checks we make for tx timeout handling could result in a race where ->dma was set but ->time_stamp was set to the old value. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/ixgb')
-rw-r--r--drivers/net/ixgb/ixgb_main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 0e72dad..4bf6bbc 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1290,12 +1290,12 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
buffer_info->length = size;
WARN_ON(buffer_info->dma != 0);
+ buffer_info->time_stamp = jiffies;
buffer_info->dma =
pci_map_single(adapter->pdev,
skb->data + offset,
size,
PCI_DMA_TODEVICE);
- buffer_info->time_stamp = jiffies;
buffer_info->next_to_watch = 0;
len -= size;
@@ -1322,13 +1322,13 @@ ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
size -= 4;
buffer_info->length = size;
+ buffer_info->time_stamp = jiffies;
buffer_info->dma =
pci_map_page(adapter->pdev,
frag->page,
frag->page_offset + offset,
size,
PCI_DMA_TODEVICE);
- buffer_info->time_stamp = jiffies;
buffer_info->next_to_watch = 0;
len -= size;
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