powerpc/wsp: Mark opb cascade handler IRQF_NO_THREAD

Cascade handlers must run in hard interrupt context.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/platforms/wsp/opb_pic.c b/arch/powerpc/platforms/wsp/opb_pic.c
index be05631a3c1c..19f353dfcd03 100644
--- a/arch/powerpc/platforms/wsp/opb_pic.c
+++ b/arch/powerpc/platforms/wsp/opb_pic.c
@@ -320,7 +320,8 @@ void __init opb_pic_init(void)
                 }
 
                 /* Attach opb interrupt handler to new virtual IRQ */
-                rc = request_irq(virq, opb_irq_handler, 0, "OPB LS Cascade", opb);
+                rc = request_irq(virq, opb_irq_handler, IRQF_NO_THREAD,
+                                 "OPB LS Cascade", opb);
                 if (rc) {
                         printk("opb: request_irq failed: %d\n", rc);
                         continue;