[PATCH 3/8] Avoid use of ppc64_interrupt_controller.

[mostrows at watson.ibm.com]

xics_irq_8259_cascade being a valid (non -1) value is sufficient criteria
for registering the cascade interrupt vector.

--
Signed-off-by: Michal Ostrowski <mostrows at watson.ibm.com>

---

 arch/powerpc/platforms/pseries/xics.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

35c3db8657f7716ae93d7423ce49f32a5f008359
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 2d60ea3..0fae097 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -82,8 +82,8 @@ struct xics_ipl {
 
 static struct xics_ipl __iomem *xics_per_cpu[NR_CPUS];
 
-static int xics_irq_8259_cascade = 0;
-static int xics_irq_8259_cascade_real = 0;
+static int xics_irq_8259_cascade = -1; /* default to invalid value*/
+static int xics_irq_8259_cascade_real = -1;
 static unsigned int default_server = 0xFF;
 static unsigned int default_distrib_server = 0;
 static unsigned int interrupt_server_size = 8;
@@ -571,8 +571,7 @@ nextnode:
  */
 static int __init xics_setup_i8259(void)
 {
-	if (ppc64_interrupt_controller == IC_PPC_XIC &&
-	    xics_irq_8259_cascade != -1) {
+	if (xics_irq_8259_cascade != -1) {
 		if (request_irq(irq_offset_up(xics_irq_8259_cascade),
 				no_action, 0, "8259 cascade", NULL))
 			printk(KERN_ERR "xics_setup_i8259: couldn't get 8259 "
-- 
1.1.4.g0b63-dirty