From: Ingo Molnar Date: Mon, 3 Jul 2006 07:25:24 +0000 (-0700) Subject: [PATCH] lockdep: annotate 3c59x.c disable_irq() X-Git-Tag: v2.6.18-rc1~46 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=0a9da4bd8eb30fb3f36e841c2cc72e426a17bbe2;p=~emulex%2Finfiniband.git [PATCH] lockdep: annotate 3c59x.c disable_irq() 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 Cc: Arjan van de Ven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index 8ab03b4a885..2819de79442 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -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 @@ leave_media_alone: 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);