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authorThomas Gleixner <tglx@linutronix.de>2014-03-04 15:19:16 +0100
committerThomas Gleixner <tglx@linutronix.de>2014-03-04 17:37:55 +0100
commit5c331c8626f5d39722d07101c699c8e794f5629d (patch)
tree31472b882b476598f9d79bebf44da818856c8687
parent6decf1a33c386d4addc2ed9d269c3868f08c70bb (diff)
downloadop-kernel-dev-5c331c8626f5d39722d07101c699c8e794f5629d.zip
op-kernel-dev-5c331c8626f5d39722d07101c699c8e794f5629d.tar.gz
irqchip: xtensa: Select only an online cpu
The user space interface does not filter out offline cpus. It merily verifies that the mask contains at least one online cpu. So the selector in the irq chip implementation needs to make sure to pick only an online cpu because otherwise: Offline Core 1 Set affinity to 0xe Selector will pick first set bit, i.e. core 1 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Zankel <chris@zankel.net> Cc: xtensa <linux-xtensa@linux-xtensa.org>
-rw-r--r--drivers/irqchip/irq-xtensa-mx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-xtensa-mx.c b/drivers/irqchip/irq-xtensa-mx.c
index f693f1b..e1c2f96 100644
--- a/drivers/irqchip/irq-xtensa-mx.c
+++ b/drivers/irqchip/irq-xtensa-mx.c
@@ -122,7 +122,7 @@ static int xtensa_mx_irq_retrigger(struct irq_data *d)
static int xtensa_mx_irq_set_affinity(struct irq_data *d,
const struct cpumask *dest, bool force)
{
- unsigned mask = 1u << cpumask_any(dest);
+ unsigned mask = 1u << cpumask_any_and(dest, cpu_online_mask);
set_er(mask, MIROUT(d->hwirq - HW_IRQ_MX_BASE));
return 0;
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