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[PATCH] lockdep: annotate 8390.c disable_irq()

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8390.c knows that ei_local->page_lock can only be used by an irq context that
it disabled - and can hence take the ->page_lock without disabling hardirqs.
Teach lockdep about this.

Has no effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-07-03 00:25:23 -07:00 committed by Linus Torvalds
parent 933a2efc59
commit e745165c6d
1 changed files with 2 additions and 2 deletions
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4
drivers/net/8390.c
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@ -249,7 +249,7 @@ void ei_tx_timeout(struct net_device *dev)
/* Ugly but a reset can be slow, yet must be protected */
disable_irq_nosync(dev->irq);
disable_irq_nosync_lockdep(dev->irq);
spin_lock(&ei_local->page_lock);
/* Try to restart the card. Perhaps the user has fixed something. */
@ -257,7 +257,7 @@ void ei_tx_timeout(struct net_device *dev)
NS8390_init(dev, 1);
spin_unlock(&ei_local->page_lock);
enable_irq(dev->irq);
enable_irq_lockdep(dev->irq);
netif_wake_queue(dev);
}