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authorThomas Gleixner <tglx@linutronix.de>2011-02-07 16:02:20 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-19 12:58:07 +0100
commit3b8249e759c701c4a82f99d957be651a7657bf6f (patch)
treef758675da3bb37282eefd50e57456d09b208b452 /kernel/irq/internals.h
parent569bda8df11effa03e618729293c7961696abb10 (diff)
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op-kernel-dev-3b8249e759c701c4a82f99d957be651a7657bf6f.tar.gz
genirq: Do not copy affinity before set
While rumaging through arch code I found that there are a few workarounds which deal with the fact that the initial affinity setting from request_irq() copies the mask into irq_data->affinity before the chip code is called. In the normal path we unconditionally copy the mask when the chip code returns 0. Copy after the code is called and add a return code IRQ_SET_MASK_OK_NOCOPY for the chip functions, which prevents the copy. That way we see the real mask when the chip function decided to truncate it further as some arches do. IRQ_SET_MASK_OK is 0, which is the current behaviour. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/internals.h')
-rw-r--r--kernel/irq/internals.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 99c3bc8..b5bfa24 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -43,7 +43,7 @@ static inline void unregister_handler_proc(unsigned int irq,
struct irqaction *action) { }
#endif
-extern int irq_select_affinity_usr(unsigned int irq);
+extern int irq_select_affinity_usr(unsigned int irq, struct cpumask *mask);
extern void irq_set_thread_affinity(struct irq_desc *desc);
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