d5dedd4507
according to Ingo, change set_affinity() in irq_chip should return int, because that way we can handle failure cases in a much cleaner way, in the genirq layer. v2: fix two typos [ Impact: extend API ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-arch@vger.kernel.org LKML-Reference: <49F654E9.4070809@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
53 lines
967 B
C
53 lines
967 B
C
/*
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* Platform dependent support for HP simulator.
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*
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* Copyright (C) 1998-2001 Hewlett-Packard Co
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* Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/irq.h>
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static unsigned int
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hpsim_irq_startup (unsigned int irq)
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{
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return 0;
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}
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static void
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hpsim_irq_noop (unsigned int irq)
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{
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}
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static int
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hpsim_set_affinity_noop(unsigned int a, const struct cpumask *b)
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{
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return 0;
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}
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static struct hw_interrupt_type irq_type_hp_sim = {
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.name = "hpsim",
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.startup = hpsim_irq_startup,
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.shutdown = hpsim_irq_noop,
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.enable = hpsim_irq_noop,
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.disable = hpsim_irq_noop,
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.ack = hpsim_irq_noop,
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.end = hpsim_irq_noop,
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.set_affinity = hpsim_set_affinity_noop,
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};
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void __init
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hpsim_irq_init (void)
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{
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irq_desc_t *idesc;
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int i;
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for (i = 0; i < NR_IRQS; ++i) {
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idesc = irq_desc + i;
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if (idesc->chip == &no_irq_type)
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idesc->chip = &irq_type_hp_sim;
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}
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}
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