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authorDavid S. Miller <davem@davemloft.net>2010-08-16 14:09:34 -0700
committerDavid S. Miller <davem@davemloft.net>2010-08-16 14:09:34 -0700
commit300a103d1504134f8c4a7e831f995e917ea9b1e4 (patch)
tree7f94d5fff513d132bd0b57a9e3bd96c4cc80d707 /drivers/net/igbvf/netdev.c
parent0a492896ac07336c98f37ad7fab4a6387b6ada78 (diff)
parentda5cabf80e2433131bf0ed8993abc0f7ea618c73 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/net/igbvf/netdev.c')
-rw-r--r--drivers/net/igbvf/netdev.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index ec808fa8dc2..c539f7c9c3e 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -248,6 +248,7 @@ static bool igbvf_clean_rx_irq(struct igbvf_adapter *adapter,
if (*work_done >= work_to_do)
break;
(*work_done)++;
+ rmb(); /* read descriptor and rx_buffer_info after status DD */
buffer_info = &rx_ring->buffer_info[i];
@@ -780,6 +781,7 @@ static bool igbvf_clean_tx_irq(struct igbvf_ring *tx_ring)
while ((eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)) &&
(count < tx_ring->count)) {
+ rmb(); /* read buffer_info after eop_desc status */
for (cleaned = false; !cleaned; count++) {
tx_desc = IGBVF_TX_DESC_ADV(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];