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From: Peter P Waskiewicz Jr on 5 May 2010 16:50
When an interrupt is disabled and torn down, the CPU mask
returned through affinity_hint right now is all CPUs. Also, for
drivers that don't provide an affinity_hint mask, this can be
misleading. There should be no hint at all, meaning an empty
CPU mask.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr(a)intel.com>
---

kernel/irq/proc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index e1e7408..9ffa24d 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -45,7 +45,7 @@ static int irq_affinity_hint_proc_show(struct seq_file *m, void *v)
if (desc->affinity_hint)
cpumask_copy(mask, desc->affinity_hint);
else
- cpumask_setall(mask);
+ cpumask_clear(mask);
raw_spin_unlock_irqrestore(&desc->lock, flags);

seq_cpumask(m, mask);

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