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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-09 21:05:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-09 21:05:52 -0700
commitf6cec0ae58c17522a7bc4e2f39dae19f199ab534 (patch)
tree496cf6f53b0c75d9ae57bd0e411c5d2f6cea5cbb /drivers/net/e1000e/netdev.c
parent0fcf12d510b6d1b1b090a090c62009310eca4be4 (diff)
parentc4e9b56e24422e71424b24eee27c2b134a191d7b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (59 commits) igbvf.txt: Add igbvf Documentation igb.txt: Add igb documentation e100/e1000*/igb*/ixgb*: Add missing read memory barrier ixgbe: fix build error with FCOE_CONFIG without DCB_CONFIG netxen: protect tx timeout recovery by rtnl lock isdn: gigaset: use after free isdn: gigaset: add missing unlock solos-pci: Fix race condition in tasklet RX handling pkt_sched: Fix sch_sfq vs tcf_bind_filter oops net: disable preemption before call smp_processor_id() tcp: no md5sig option size check bug iwlwifi: fix locking assertions iwlwifi: fix TX tracer isdn: fix information leak net: Fix napi_gro_frags vs netpoll path usbnet: remove noisy and hardly useful printk rtl8180: avoid potential NULL deref in rtl8180_beacon_work ath9k: Remove myself from the MAINTAINERS list libertas: scan before assocation if no BSSID was given libertas: fix association with some APs by using extended rates ...
Diffstat (limited to 'drivers/net/e1000e/netdev.c')
-rw-r--r--drivers/net/e1000e/netdev.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 521c6ee1f32a..2b8ef44bd2b1 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -781,6 +781,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
if (*work_done >= work_to_do)
break;
(*work_done)++;
+ rmb(); /* read descriptor and rx_buffer_info after status DD */
status = rx_desc->status;
skb = buffer_info->skb;
@@ -991,6 +992,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
(count < tx_ring->count)) {
bool cleaned = false;
+ rmb(); /* read buffer_info after eop_desc */
for (; !cleaned; count++) {
tx_desc = E1000_TX_DESC(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];
@@ -1087,6 +1089,7 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
break;
(*work_done)++;
skb = buffer_info->skb;
+ rmb(); /* read descriptor and rx_buffer_info after status DD */
/* in the packet split case this is header only */
prefetch(skb->data - NET_IP_ALIGN);
@@ -1286,6 +1289,7 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
if (*work_done >= work_to_do)
break;
(*work_done)++;
+ rmb(); /* read descriptor and rx_buffer_info after status DD */
status = rx_desc->status;
skb = buffer_info->skb;