[PATCH 3/10] provide a native_init_IRQ function to x86_64

[Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>]

x86_64 lacks a native_init_IRQ() function, so we turn the arch's
init_IRQ() function into a native construct

Signed-off-by: Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>
---
 arch/x86/kernel/i8259_64.c  |    4 +++-
 include/asm-x86/hw_irq_64.h |    1 +
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/i8259_64.c b/arch/x86/kernel/i8259_64.c
index cba13e0..738517e 100644
--- a/arch/x86/kernel/i8259_64.c
+++ b/arch/x86/kernel/i8259_64.c
@@ -456,7 +456,9 @@ void __init init_ISA_irqs (void)
 	}
 }
 
-void __init init_IRQ(void)
+void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
+
+void __init native_init_IRQ(void)
 {
 	int i;
 
diff --git a/include/asm-x86/hw_irq_64.h b/include/asm-x86/hw_irq_64.h
index a346159..312a58d 100644
--- a/include/asm-x86/hw_irq_64.h
+++ b/include/asm-x86/hw_irq_64.h
@@ -141,6 +141,7 @@ extern void print_IO_APIC(void);
 extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
 extern void send_IPI(int dest, int vector);
 extern void setup_ioapic_dest(void);
+extern void native_init_IRQ(void);
 
 extern unsigned long io_apic_irqs;
 
-- 
1.4.4.2

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