irq: replace loop with nr_irqs with for_each_irq_desc

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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>

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Yinghai Lu 2008-08-19 20:50:11 -07:00 • committed by Ingo Molnar

parent 9059d8fa4a

commit 2c6927a38f

7 changed files with 25 additions and 26 deletions

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4

kernel/irq/internals.h

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2

kernel/irq/manage.c

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10

kernel/irq/proc.c

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