arm64: Convert handle_IRQ to use __handle_domain_irq

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.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lkml.kernel.org/r/1409047421-27649-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index fd4e81a4e1cee5fc4e564ad60f8b48d15b3c5f71..1f16ed96f3f6bd8633b8aa2d252eb6934dbef618 100644 (file)
--- 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 0f08dfd69ebc73ea99b7b7f6d68c4b2f320eb2d1..2c0e2a7447234044cc3cacabb2ecd569e675dbad 100644 (file)
--- 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 *))