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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-16 15:20:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-16 15:20:40 -0800
commit3c6847eaa3da59f3bbe15eb3004ddab41ae6a201 (patch)
tree9a33b100efeaa63fab23662eb0db42385b8d1f10 /kernel
parent37507717de51a8332a34ee07fd88700be88df5bf (diff)
parent4fe7ffb7e17ca6ad9173b8de35f260c9c8fc2f79 (diff)
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqchip updates from Ingo Molnar: "Various irqchip driver updates, plus a genirq core update that allows the initial spreading of irqs amonst CPUs without having to do it from user-space" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Fix null pointer reference in irq_set_affinity_hint() irqchip: gic: Allow interrupt level to be set for PPIs irqchip: mips-gic: Handle pending interrupts once in __gic_irq_dispatch() irqchip: Conexant CX92755 interrupts controller driver irqchip: Devicetree: document Conexant Digicolor irq binding irqchip: omap-intc: Remove unused legacy interface for omap2 irqchip: omap-intc: Fix support for dm814 and dm816 irqchip: mtk-sysirq: Get irq number from register resource size irqchip: renesas-intc-irqpin: r8a7779 IRLM setup support genirq: Set initial affinity in irq_set_affinity_hint()
Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/manage.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 80692373abd6..196a06fbc122 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -243,6 +243,9 @@ int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m)
return -EINVAL;
desc->affinity_hint = m;
irq_put_desc_unlock(desc, flags);
+ /* set the initial affinity to prevent every interrupt being on CPU0 */
+ if (m)
+ __irq_set_affinity(irq, m, false);
return 0;
}
EXPORT_SYMBOL_GPL(irq_set_affinity_hint);