In order to limit code duplication, convert the architecture specific
handle_IRQ to use the generic __handle_domain_irq function.

Signed-off-by: Marc Zyngier <marc.zyng...@arm.com>
---
 arch/arm64/Kconfig      |  1 +
 arch/arm64/kernel/irq.c | 18 +-----------------
 2 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index fd4e81a..1f16ed9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -30,6 +30,7 @@ config ARM64
        select GENERIC_STRNCPY_FROM_USER
        select GENERIC_STRNLEN_USER
        select GENERIC_TIME_VSYSCALL
+       select HANDLE_DOMAIN_IRQ
        select HARDIRQS_SW_RESEND
        select HAVE_ARCH_AUDITSYSCALL
        select HAVE_ARCH_JUMP_LABEL
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 0f08dfd..2c0e2a7 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -48,23 +48,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
  */
 void handle_IRQ(unsigned int irq, struct pt_regs *regs)
 {
-       struct pt_regs *old_regs = set_irq_regs(regs);
-
-       irq_enter();
-
-       /*
-        * Some hardware gives randomly wrong interrupts.  Rather
-        * than crashing, do something sensible.
-        */
-       if (unlikely(irq >= nr_irqs)) {
-               pr_warn_ratelimited("Bad IRQ%u\n", irq);
-               ack_bad_irq(irq);
-       } else {
-               generic_handle_irq(irq);
-       }
-
-       irq_exit();
-       set_irq_regs(old_regs);
+       __handle_domain_irq(NULL, irq, false, regs);
 }
 
 void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
-- 
2.0.4

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