2007-08-02 (木) の 15:27 -0500 に Russ Anderson さんは書きました: > Kenji Kaneshige wrote: > > > > Implement platform_irq_to_vector() for SN platform. > > > > Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> > > > > --- > > arch/ia64/sn/kernel/irq.c | 5 +++++ > > include/asm-ia64/machvec_sn2.h | 2 ++ > > 2 files changed, 7 insertions(+) > > > > Index: linux-2.6.23-rc1/arch/ia64/sn/kernel/irq.c > > =================================================================== > > --- linux-2.6.23-rc1.orig/arch/ia64/sn/kernel/irq.c > > +++ linux-2.6.23-rc1/arch/ia64/sn/kernel/irq.c > > @@ -256,6 +256,11 @@ struct irq_chip irq_type_sn = { > > .set_affinity = sn_set_affinity_irq > > }; > > > > +ia64_vector sn_irq_to_vector(int irq) > > +{ > > + return (ia64_vector)irq; > > +} > > + > > unsigned int sn_local_vector_to_irq(u8 vector) > > { > > return (CPU_VECTOR_TO_IRQ(smp_processor_id(), vector)); > > One thing to be aware of is ia64_vector is u8, which can hold > a value from 0-255. NR_IRQS is 1024. > > So sn_irq_to_vector() will truncate any IRQ > 255. > What about this: ia64_vector sn_irq_to_vector(int irq) { if (irq >= IA64_NUM_VECTORS) return 0; return (ia64_vector)irq; } Thanks, Kenji Kaneshige - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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