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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-23 15:30:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-23 15:30:52 -0700 |
| commit | e8ebe3b893792887317bc24cc4608753f81b81d3 (patch) | |
| tree | 509e62c11c1fc2a9d245ea54688d6bdcb05065a3 /drivers | |
| parent | b4942af65028c5eb516fdd9053020ccb2ee186ce (diff) | |
| download | linux-3.10-e8ebe3b893792887317bc24cc4608753f81b81d3.tar.gz linux-3.10-e8ebe3b893792887317bc24cc4608753f81b81d3.tar.bz2 linux-3.10-e8ebe3b893792887317bc24cc4608753f81b81d3.zip | |
e1000e: fix e1000_netpoll(), remove extraneous e1000_clean_tx_irq() call
Evgeniy Polyakov noticed that drivers/net/e1000e/netdev.c:e1000_netpoll()
was calling e1000_clean_tx_irq() without taking the TX lock.
David Miller suggested to remove the call altogether: since in this
callpah there's periodic calls to ->poll() anyway which will do
e1000_clean_tx_irq() and will garbage-collect any finished TX ring
descriptors.
This fix solved the e1000e+netconsole crashes i've been seeing:
=============================================================================
BUG skbuff_head_cache: Poison overwritten
-----------------------------------------------------------------------------
INFO: 0xf658ae9c-0xf658ae9c. First byte 0x6a instead of 0x6b
INFO: Allocated in __alloc_skb+0x2c/0x110 age=0 cpu=0 pid=5098
INFO: Freed in __kfree_skb+0x31/0x80 age=0 cpu=1 pid=4440
INFO: Slab 0xc16cc140 objects=16 used=1 fp=0xf658ae00 flags=0x400000c3
INFO: Object 0xf658ae00 @offset=3584 fp=0xf658af00
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 869544b8c05..9c0f56b3c51 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4067,8 +4067,6 @@ static void e1000_netpoll(struct net_device *netdev) disable_irq(adapter->pdev->irq); e1000_intr(adapter->pdev->irq, netdev); - e1000_clean_tx_irq(adapter); - enable_irq(adapter->pdev->irq); } #endif |