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| author | David S. Miller <davem@davemloft.net> | 2009-04-09 01:09:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-09 01:09:33 -0700 |
| commit | 6c2da9c2182fe64b1443a75efc09e493923e86b0 (patch) | |
| tree | fbdc6e9ec90669793c015317e23a2ff64cc16137 /drivers/net/forcedeth.c | |
| parent | 2a3abf6d17b6026a59e5cf7452d70ec1ad6a69fa (diff) | |
| download | kernel_samsung_smdk4412-6c2da9c2182fe64b1443a75efc09e493923e86b0.zip kernel_samsung_smdk4412-6c2da9c2182fe64b1443a75efc09e493923e86b0.tar.gz kernel_samsung_smdk4412-6c2da9c2182fe64b1443a75efc09e493923e86b0.tar.bz2 | |
forcedeth: Use napi_complete() not __napi_complete().
It's not enough that forcedeth's interrupts are disabled,
local cpu interrupts have to unconditionally be off
when we remove the device from the poll list.
Based upon a crash report from
Alexander Beregalov <a.beregalov@gmail.com>:
WARNING: at lib/list_debug.c:30 __list_add+0x89/0x90()
Hardware name:
list_add corruption. prev->next should be next (c06ea834), but was
f70244c8. (prev=c06ea834).
Modules linked in: w83627hf hwmon_vid i2c_nforce2
Pid: 1436, comm: portageq Not tainted 2.6.30-rc1 #1
Call Trace:
[<c0129d73>] warn_slowpath+0x73/0xd0
[<c03c6008>] ? __kfree_skb+0x38/0x90
[<c03f9b06>] ? tcp_data_snd_check+0x26/0xe0
[<c03fd67f>] ? tcp_rcv_established+0x2bf/0x5e0
[<c040557a>] ? tcp_v4_rcv+0x47a/0x610
[<c014cebd>] ? print_lock_contention_bug+0x1d/0x110
[<c044a967>] ? _spin_unlock+0x27/0x50
[<c040564b>] ? tcp_v4_rcv+0x54b/0x610
[<c02d86f9>] __list_add+0x89/0x90
[<c03ccff9>] __napi_schedule+0x29/0x60
[<c036946d>] e1000_intr+0xbd/0x1a0
[<c015c5de>] handle_IRQ_event+0x3e/0x120
[<c015e190>] handle_fasteoi_irq+0x60/0xd0
[<c0104fd4>] handle_irq+0x34/0x60
[<c015f748>] ? rcu_irq_enter+0x8/0x40
[<c0104b29>] do_IRQ+0x39/0xa0
[<c03c592c>] ? skb_release_head_state+0x2c/0x60
[<c01034ee>] common_interrupt+0x2e/0x34
[<c02d8601>] ? list_del+0x21/0x90
[<c014e54b>] ? trace_hardirqs_on+0xb/0x10
[<c03cd4da>] __napi_complete+0x1a/0x30
[<c0381971>] nv_napi_poll+0xd1/0x5c0
[<c014e54b>] ? trace_hardirqs_on+0xb/0x10
[<c03cd5f6>] net_rx_action+0x106/0x1b0
[<c012e8df>] __do_softirq+0x6f/0x100
[<c044a967>] ? _spin_unlock+0x27/0x50
[<c015e1b8>] ? handle_fasteoi_irq+0x88/0xd0
[<c012e9cd>] do_softirq+0x5d/0x70
[<c012ebad>] irq_exit+0x7d/0xa0
[<c0104b32>] do_IRQ+0x42/0xa0
[<c012e9b7>] ? do_softirq+0x47/0x70
[<c01034ee>] common_interrupt+0x2e/0x34
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/forcedeth.c')
| -rw-r--r-- | drivers/net/forcedeth.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index d374650..11d5db1 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -3745,14 +3745,14 @@ static int nv_napi_poll(struct napi_struct *napi, int budget) mod_timer(&np->nic_poll, jiffies + POLL_WAIT); } spin_unlock_irqrestore(&np->lock, flags); - __napi_complete(napi); + napi_complete(napi); return rx_work; } if (rx_work < budget) { /* re-enable interrupts (msix not enabled in napi) */ - __napi_complete(napi); + napi_complete(napi); writel(np->irqmask, base + NvRegIrqMask); } |