From: Paul Mackerras This patch fixes a bug where, if we try to set the affinity on an unused virtual IRQ number on a logically-partitioned pSeries system, we call the firmware with physical IRQ number = -1, which it doesn't like. With this patch we just ignore the attempt. Signed-off-by: Paul Mackerras Signed-off-by: Andrew Morton --- 25-akpm/arch/ppc64/kernel/xics.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN arch/ppc64/kernel/xics.c~ppc64-xics-irq-fix arch/ppc64/kernel/xics.c --- 25/arch/ppc64/kernel/xics.c~ppc64-xics-irq-fix Wed May 26 15:37:46 2004 +++ 25-akpm/arch/ppc64/kernel/xics.c Wed May 26 15:37:46 2004 @@ -620,7 +620,7 @@ static void xics_set_affinity(unsigned i cpumask_t tmp = CPU_MASK_NONE; irq = virt_irq_to_real(irq_offset_down(virq)); - if (irq == XICS_IPI) + if (irq == XICS_IPI || irq == NO_IRQ) return; status = rtas_call(ibm_get_xive, 1, 3, (void *)&xics_status, irq); _