From: Helge Deller Date: Sat, 24 Sep 2016 20:22:12 +0000 (+0200) Subject: parisc: Fix self-detected CPU stall warnings on Mako machines X-Git-Tag: v4.9-rc1~82^2~5 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=92420bd0d01f040bbf754e1d090be49ca6a1c8d6;p=linux.git 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 Cc: stable@vger.kernel.org # 4.7+ --- diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 4b0b963d52a7..9b63b876a13a 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -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;