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authorSigned-off-by: Darren Hart <dvhltc@us.ibm.com>2010-08-04 18:28:35 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-08-24 15:26:30 +1000
commit1afb56cf977ab41bff4fc6bf9e5864770b19b880 (patch)
treeb5c801933ee3a8f452d91b49dc5080dc74e236ae /arch
parent6685a477494ceb063c10300891e48895bb1843c9 (diff)
downloadlinux-linaro-android-1afb56cf977ab41bff4fc6bf9e5864770b19b880.tar.gz
powerpc: Silence xics_migrate_irqs_away() during cpu offline
All IRQs are migrated away from a CPU that is being offlined so the following messages suggest a problem when the system is behaving as designed: IRQ 262 affinity broken off cpu 1 IRQ 17 affinity broken off cpu 0 IRQ 18 affinity broken off cpu 0 IRQ 19 affinity broken off cpu 0 IRQ 256 affinity broken off cpu 0 IRQ 261 affinity broken off cpu 0 IRQ 262 affinity broken off cpu 0 Don't print these messages when the CPU is not online. Signed-off-by: Darren Hart <dvhltc@us.ibm.com> Acked-by: Will Schmidt <will_schmidt@vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Nathan Fontenot <nfont@austin.ibm.com> Cc: Robert Jennings <rcj@linux.vnet.ibm.com> Cc: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/pseries/xics.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 5b22b07c8f6..93834b0d827 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -928,8 +928,10 @@ void xics_migrate_irqs_away(void)
if (xics_status[0] != hw_cpu)
goto unlock;
- printk(KERN_WARNING "IRQ %u affinity broken off cpu %u\n",
- virq, cpu);
+ /* This is expected during cpu offline. */
+ if (cpu_online(cpu))
+ printk(KERN_WARNING "IRQ %u affinity broken off cpu %u\n",
+ virq, cpu);
/* Reset affinity to all cpus */
cpumask_setall(irq_to_desc(virq)->affinity);