powerpc: Mark IPI interrupts IRQF_NO_THREAD

IPI handlers cannot be threaded. Remove the obsolete IRQF_DISABLED
flag (see commit e58aa3d2) while at it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/kernel/smp.c

@@ -187,7 +187,8 @@ int smp_request_message_ipi(int virq, int msg)
 		return 1;
 	}
 #endif
-	err = request_irq(virq, smp_ipi_action[msg], IRQF_PERCPU,
+	err = request_irq(virq, smp_ipi_action[msg],
+			  IRQF_PERCPU | IRQF_NO_THREAD,
 			  smp_ipi_name[msg], 0);
 	WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n",
 		virq, smp_ipi_name[msg], err);

arch/powerpc/platforms/powermac/smp.c

@@ -200,7 +200,7 @@ static int psurge_secondary_ipi_init(void)
 
 	if (psurge_secondary_virq)
 		rc = request_irq(psurge_secondary_virq, psurge_ipi_intr,
-			IRQF_PERCPU, "IPI", NULL);
+			IRQF_PERCPU | IRQF_NO_THREAD, "IPI", NULL);
 
 	if (rc)
 		pr_err("Failed to setup secondary cpu IPI\n");
@@ -408,7 +408,7 @@ static int __init smp_psurge_kick_cpu(int nr)
 
 static struct irqaction psurge_irqaction = {
 	.handler = psurge_ipi_intr,
-	.flags = IRQF_PERCPU,
+	.flags = IRQF_PERCPU | IRQF_NO_THREAD,
 	.name = "primary IPI",
 };
 

arch/powerpc/sysdev/xics/xics-common.c

@@ -137,7 +137,7 @@ static void xics_request_ipi(void)
 	 * IPIs are marked IRQF_PERCPU. The handler was set in map.
 	 */
 	BUG_ON(request_irq(ipi, icp_ops->ipi_action,
-			   IRQF_PERCPU, "IPI", NULL));
+			   IRQF_PERCPU | IRQF_NO_THREAD, "IPI", NULL));
 }
 
 int __init xics_smp_probe(void)