arm: Use ARCH_IRQ_INIT_FLAGS

The core code now initializes the requested number of interrupts and
sets the flags in irq_desc.status which are requested by the
architecture via ARCH_IRQ_INIT_FLAGS.

Add ARCH_IRQ_INIT_FLAGS and remove the loop which sets those flags
after the irq descriptors are allocated.

[ This patch should have been in the original irq rework and got
  dropped accidentaly ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Cc: Anand Gadiyar <gadiyar@ti.com>

2 files changed, 2 insertions, 8 deletions

diff --git a/arch/arm/include/asm/hw_irq.h b/arch/arm/include/asm/hw_irq.h
index 90831f6f5f5c..5586b7c8ef6f 100644
--- a/arch/arm/include/asm/hw_irq.h
+++ b/arch/arm/include/asm/hw_irq.h
@@ -24,4 +24,6 @@ void set_irq_flags(unsigned int irq, unsigned int flags);
 #define IRQF_PROBE      (1 << 1)
 #define IRQF_NOAUTOEN   (1 << 2)
 
+#define ARCH_IRQ_INIT_FLAGS     (IRQ_NOREQUEST | IRQ_NOPROBE)
+
 #endif
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 0e65d7ec8209..36ad3be4692a 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -154,14 +154,6 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
 
 void __init init_IRQ(void)
 {
-        struct irq_desc *desc;
-        int irq;
-
-        for (irq = 0; irq < nr_irqs; irq++) {
-                desc = irq_to_desc_alloc_node(irq, 0);
-                desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE;
-        }
-
         init_arch_irq();
 }