From: "Eric W. Biederman" <ebiederm@xmission.com>

Because of the nasty way that CONFIG_PCI_MSI was implemented we wound up with
set_irq_info and set_native_irq_info, with move_irq and move_native_irq.  Both
functions did the same thing but they were built and called under different
circumstances.  Now that the msi hacks are gone we can kill move_irq and
set_irq_info.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rajesh Shah <rajesh.shah@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 include/linux/irq.h |   36 ------------------------------------
 1 file changed, 36 deletions(-)

diff -puN include/linux/irq.h~genirq-irq-remove-msi-hacks include/linux/irq.h
--- a/include/linux/irq.h~genirq-irq-remove-msi-hacks
+++ a/include/linux/irq.h
@@ -207,36 +207,6 @@ void set_pending_irq(unsigned int irq, c
 void move_native_irq(int irq);
 void move_masked_irq(int irq);
 
-#ifdef CONFIG_PCI_MSI
-/*
- * Wonder why these are dummies?
- * For e.g the set_ioapic_affinity_vector() calls the set_ioapic_affinity_irq()
- * counter part after translating the vector to irq info. We need to perform
- * this operation on the real irq, when we dont use vector, i.e when
- * pci_use_vector() is false.
- */
-static inline void move_irq(int irq)
-{
-}
-
-static inline void set_irq_info(int irq, cpumask_t mask)
-{
-}
-
-#else /* CONFIG_PCI_MSI */
-
-static inline void move_irq(int irq)
-{
-	move_native_irq(irq);
-}
-
-static inline void set_irq_info(int irq, cpumask_t mask)
-{
-	set_native_irq_info(irq, mask);
-}
-
-#endif /* CONFIG_PCI_MSI */
-
 #else /* CONFIG_GENERIC_PENDING_IRQ || CONFIG_IRQBALANCE */
 
 static inline void move_irq(int irq)
@@ -255,16 +225,10 @@ static inline void set_pending_irq(unsig
 {
 }
 
-static inline void set_irq_info(int irq, cpumask_t mask)
-{
-	set_native_irq_info(irq, mask);
-}
-
 #endif /* CONFIG_GENERIC_PENDING_IRQ */
 
 #else /* CONFIG_SMP */
 
-#define move_irq(x)
 #define move_native_irq(x)
 #define move_masked_irq(x)
 
_