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authorJarek Poplawski <jarkao2@gmail.com>2008-09-30 20:58:25 +0000
committerDavid S. Miller <davem@davemloft.net>2008-10-08 16:56:48 -0700
commitf47aeffd6089ed7a0cd18073e88cd505f188b0b7 (patch)
tree5020fbc523db172782cc873da178f6cfd78d06d6
parent23e55a32ca1ffdbe7a492ef99f0e0ac48e504a13 (diff)
lib8390: Fix locking in ei_poll (poll controller)
This lockdep warning: ================================= [ INFO: inconsistent lock state ] 2.6.27-rc7 #3 --------------------------------- inconsistent {in-softirq-W} -> {softirq-on-W} usage. syslogd/2474 [HC0[0]:SC0[0]:HE1:SE1] takes: (_xmit_ETHER#2){-+..}, at: [<c0265562>] netpoll_send_skb+0x132/0x190 ... is caused by unconditional local_irq_disable()/local_irq_enable() in disable_irq_lockdep()/enable_irq_lockdep() used by __ei_poll(). Since netconsole/netpoll always calls dev->poll_controller() with local irqs disabled, disable_irq()/enable_irq() instead is safe and enough (like e.g. in 3c509 or 8139xx drivers). Reported-and-tested-by: Bernard Pidoux F6BVP <f6bvp@free.fr> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/lib8390.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/lib8390.c b/drivers/net/lib8390.c
index 00d59ab2f8a..f80dcc11fe2 100644
--- a/drivers/net/lib8390.c
+++ b/drivers/net/lib8390.c
@@ -530,9 +530,9 @@ static irqreturn_t __ei_interrupt(int irq, void *dev_id)
#ifdef CONFIG_NET_POLL_CONTROLLER
static void __ei_poll(struct net_device *dev)
{
- disable_irq_lockdep(dev->irq);
+ disable_irq(dev->irq);
__ei_interrupt(dev->irq, dev);
- enable_irq_lockdep(dev->irq);
+ enable_irq(dev->irq);
}
#endif