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parisc: Fix self-detected CPU stall warnings on Mako machines 

The config option HAVE_UNSTABLE_SCHED_CLOCK is set automatically when compiling
for SMP. There is no need to clear the stable-clock flag via
clear_sched_clock_stable() when starting secondary CPUs, and even worse,
clearing it triggers wrong self-detected CPU stall warnings on 64bit Mako
machines.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 4.7+
This commit is contained in:
Helge Deller 2016-09-24 22:22:12 +02:00
parent b391667eb4
commit 92420bd0d0
1 changed files with 0 additions and 6 deletions
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6
arch/parisc/kernel/time.c
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@ -226,12 +226,6 @@ void __init start_cpu_itimer(void)
unsigned int cpu = smp_processor_id();
unsigned long next_tick = mfctl(16) + clocktick;
#if defined(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK) && defined(CONFIG_64BIT)
/* With multiple 64bit CPUs online, the cr16's are not syncronized. */
if (cpu != 0)
clear_sched_clock_stable();
#endif
mtctl(next_tick, 16); /* kick off Interval Timer (CR16) */
per_cpu(cpu_data, cpu).it_value = next_tick;