linux-kernel - Re: [PATCH 03/10] ARM: smp_twd: Divorce smp

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Message-ID: <20130308200811.GJ11806@atomide.com>
Date:	Fri, 8 Mar 2013 12:08:12 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	linux-arm-kernel@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org,
	Russell King <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/10] ARM: smp_twd: Divorce smp_twd from local timer
 API

* Stephen Boyd <sboyd@...eaurora.org> [130308 11:54]:
> On 03/08/13 11:48, Tony Lindgren wrote:
> > * Stephen Boyd <sboyd@...eaurora.org> [130308 10:21]:
> >>
> >> diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
> >> index 081de6f..4ea3e9d 100644
> >> --- a/arch/arm/kernel/smp_twd.c
> >> +++ b/arch/arm/kernel/smp_twd.c
> >> @@ -227,7 +227,7 @@ static void __cpuinit twd_calibrate_rate(void)
> >>  
> >>  static irqreturn_t twd_handler(int irq, void *dev_id)
> >>  {
> >> -       struct clock_event_device *evt = *(struct clock_event_device **)dev_id;
> >> +       struct clock_event_device *evt = dev_id;
> >>  
> >>         if (twd_timer_ack()) {
> >>                 evt->event_handler(evt);
> >>
> > Yup thanks that fixes it, both fixes are needed. So for this patch + the
> > two fixes please feel free to add:
> >
> > Acked-by: Tony Lindgren <tony@...mide.com>
> 
> Great. Thanks for testing.

Hmm noticed one more thing: vexpress no longer boots in qemu for
me after applying this. Sorry did not get any debug_ll output, but
maybe you can take a look at it. I tested with omap2plus_defconfig +
linaro-qemu:

$ qemu-system-arm -machine vexpress-a9 -m 1024 -curses -net nic -net \
user -serial stdio -append console=ttyAMA0,115200n8 rw \
root=/dev/mmcblk0p2 rootwait physmap.enabled=0 -kernel zImage \
-initrd initrd.img -sd rootfs.img

Regards,

Tony
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