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[PATCH] lockdep: annotate 3c59x.c disable_irq()

Browse source 
3c59x.c's vortex_timer() function knows that vp->lock can only be used by an
irq context that it disabled - and can hence take the vp->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>
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 00:25:24 -07:00 committed by Linus Torvalds
parent e745165c6d
commit 0a9da4bd8e
1 changed files with 2 additions and 2 deletions
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4
drivers/net/3c59x.c
View file

@ -1897,7 +1897,7 @@ vortex_timer(unsigned long data)
printk(KERN_DEBUG "dev->watchdog_timeo=%d\n", dev->watchdog_timeo);
}
disable_irq(dev->irq);
disable_irq_lockdep(dev->irq);
old_window = ioread16(ioaddr + EL3_CMD) >> 13;
EL3WINDOW(4);
media_status = ioread16(ioaddr + Wn4_Media);
@ -1978,7 +1978,7 @@ vortex_timer(unsigned long data)
dev->name, media_tbl[dev->if_port].name);
EL3WINDOW(old_window);
enable_irq(dev->irq);
enable_irq_lockdep(dev->irq);
mod_timer(&vp->timer, RUN_AT(next_tick));
if (vp->deferred)
iowrite16(FakeIntr, ioaddr + EL3_CMD);