On Thu, 2013-04-25 at 14:36 +0200, Mike Galbraith wrote:
> On Thu, 2013-04-25 at 14:32 +0200, Sebastian Andrzej Siewior wrote:
> > On 04/25/2013 01:14 PM, Tim Sander wrote:
> > > Hi
> > >
> > > I just wanted to test this release but it fails to compile with the the
> > > following error:
> > >
> > > kernel/hrtimer.c: In function '__hrtimer_start_range_ns':
> > > kernel/hrtimer.c:1045:7: error: implicit declaration of function
> > > 'hrtimer_rt_defer'
> > > kernel/hrtimer.c: At top level:
> > > kernel/hrtimer.c:1416:12: error: static declaration of 'hrtimer_rt_defer'
> > > follows non-static declaration
> > > kernel/hrtimer.c:1045:10: note: previous implicit declaration of
> > > 'hrtimer_rt_defer' was here
> > >
> > > The kernelconfig is attached.
> >
> > You do not have CONFIG_HIGH_RES_TIMERS defined. Is this on purpose?
>
> git@marge:~/linux-2.6> ls -1 arch/arm/configs|wc -l
> 122
> git@marge:~/linux-2.6> grep -IR CONFIG_HIGH_RES_TIMERS arch/arm/configs|wc -l
> 31
>
> Oh. Sniff, poor little things.
>
> hrtimer: fix hrtimer free zone build bug
Perhaps the better solution is to select HIGH_RES_TIMERS when
PREEMPT_RT_FULL is selected?
-- Steve
>
> Signed-off-by: Mike Galbraith <bitbucket@xxxxxxxxx>
>
> diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
> index 2328c04..31d57a2 100644
> --- a/kernel/hrtimer.c
> +++ b/kernel/hrtimer.c
> @@ -1036,7 +1036,7 @@ int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
> && hrtimer_enqueue_reprogram(timer, new_base)) {
>
> if (wakeup
> -#ifdef CONFIG_PREEMPT_RT_BASE
> +#if defined(CONFIG_PREEMPT_RT_BASE) && defined(CONFIG_HIGH_RES_TIMERS)
> /*
> * Move softirq based timers away from the rbtree in
> * case it expired already. Otherwise we would have a
>
--
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