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| author |   Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:11 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:33 +0200 |
| commit | 2c6927a38f65b53b62f86158fba29a068c4e8b6a (patch) | |
| tree | 4f23cf5689c8fbaed771219b4afd3f785d8048bc /arch/x86/kernel/irq_64.c | |
| parent | irq: add irq_desc_without_new (diff) | |
| download | linux-dev-2c6927a38f65b53b62f86158fba29a068c4e8b6a.tar.xz linux-dev-2c6927a38f65b53b62f86158fba29a068c4e8b6a.zip | |
irq: replace loop with nr_irqs with for_each_irq_desc
There are a handful of loops that go from 0 to nr_irqs and use
get_irq_desc() on them. These would allocate all the irq_desc
entries, regardless of the need for them.
Use the smarter for_each_irq_desc() iterator that will only iterate
over the present ones.
v2: make sure arch without GENERIC_HARDIRQS work too
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/irq_64.c')
| -rw-r--r-- | arch/x86/kernel/irq_64.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index 4a0a4eb44dcb..b3cf55e325f5 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c @@ -224,17 +224,16 @@ void fixup_irqs(cpumask_t map) { unsigned int irq; static int warned; + struct irq_desc *desc; - for (irq = 0; irq < nr_irqs; irq++) { + for_each_irq_desc(irq, desc) { cpumask_t mask; int break_affinity = 0; int set_affinity = 1; - struct irq_desc *desc; if (irq == 2) continue; - desc = irq_to_desc(irq); /* interrupt's are disabled at this point */ spin_lock(&desc->lock); |