[ARM] 5298/1: Drop desc_handle_irq()

desc_handle_irq() was declared as obsolete since long ago.
Replace it with generic_handle_irq()

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-netx/generic.c b/arch/arm/mach-netx/generic.c
index 1b40483..3830eca 100644
--- a/arch/arm/mach-netx/generic.c
+++ b/arch/arm/mach-netx/generic.c
@@ -77,15 +77,12 @@
 	stat = ((readl(NETX_DPMAS_INT_EN) &
 		readl(NETX_DPMAS_INT_STAT)) >> 24) & 0x1f;
 
-	desc = irq_desc + NETX_IRQ_HIF_CHAINED(0);
-
 	while (stat) {
 		if (stat & 1) {
 			DEBUG_IRQ("handling irq %d\n", irq);
-			desc_handle_irq(irq, desc);
+			generic_handle_irq(irq);
 		}
 		irq++;
-		desc++;
 		stat >>= 1;
 	}
 }