powerpc/85xx: Prepare irq handlers for irq argument removal

Author: Thomas Gleixner <tglx@linutronix.de>

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.
Search and update was done with coccinelle and the invaluable help of
Julia Lawall.
Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu 
Cc: Scott Wood 
Cc: linuxppc-dev@lists.ozlabs.org
 arch/powerpc/platforms/85xx/mpc85xx_cds.c       | 3 ++-
 arch/powerpc/platforms/85xx/socrates_fpga_pic.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index b0753e2..13a8d1a 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -192,9 +192,10 @@ void mpc85xx_cds_fixup_bus(struct pci_bus *bus)
 #ifdef CONFIG_PPC_I8259
-static void mpc85xx_8259_cascade_handler(unsigned int irq,
+static void mpc85xx_8259_cascade_handler(unsigned int __irq,
 					 struct irq_desc *desc)
+	unsigned int irq = irq_desc_get_irq(desc);
 	unsigned int cascade_irq = i8259_irq();
 	if (cascade_irq != NO_IRQ)
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index 55a9682..d78fda8 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -91,9 +91,10 @@ static inline unsigned int socrates_fpga_pic_get_irq(unsigned int irq)
-void socrates_fpga_pic_cascade(unsigned int irq, struct irq_desc *desc)
+void socrates_fpga_pic_cascade(unsigned int __irq, struct irq_desc *desc)
 	struct irq_chip *chip = irq_desc_get_chip(desc);
+	unsigned int irq = irq_desc_get_irq(desc);
 	unsigned int cascade_irq;