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Subject[tip:irq/core] arm64: Use the new GENERIC_IRQ_MULTI_HANDLER
Commit-ID:  ec38432a7e84bb614401788ec03c6f05e7915832
Gitweb: https://git.kernel.org/tip/ec38432a7e84bb614401788ec03c6f05e7915832
Author: Palmer Dabbelt <palmer@sifive.com>
AuthorDate: Wed, 7 Mar 2018 15:57:30 -0800
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Wed, 14 Mar 2018 21:46:30 +0100

arm64: Use the new GENERIC_IRQ_MULTI_HANDLER

It appears arm64 copied arm's GENERIC_IRQ_MULTI_HANDLER code, but made
it unconditional.

Convert the arm64 code to use the new generic code, which simply consists
of deleting the arm64 code and setting GENERIC_MULTI_IRQ_HANDLER instead.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: jonas@southpole.se
Cc: catalin.marinas@arm.com
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux@armlinux.org.uk
Cc: stefan.kristiansson@saunalahti.fi
Cc: openrisc@lists.librecores.org
Cc: shorne@gmail.com
Cc: linux-riscv@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lkml.kernel.org/r/20180307235731.22627-5-palmer@sifive.com

---
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/irq.h | 2 --
arch/arm64/kernel/irq.c | 10 ----------
3 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7381eeb7ef8e..cb03e93f03cf 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -132,6 +132,7 @@ config ARM64
select IRQ_DOMAIN
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_RELA
+ select GENERIC_IRQ_MULTI_HANDLER
select NO_BOOTMEM
select OF
select OF_EARLY_FLATTREE
diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index a0fee6985e6a..b2b0c6405eb0 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -8,8 +8,6 @@

struct pt_regs;

-extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
-
static inline int nr_legacy_irqs(void)
{
return 0;
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index 60e5fc661f74..780a12f59a8f 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -42,16 +42,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
return 0;
}

-void (*handle_arch_irq)(struct pt_regs *) = NULL;
-
-void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
-{
- if (handle_arch_irq)
- return;
-
- handle_arch_irq = handle_irq;
-}
-
#ifdef CONFIG_VMAP_STACK
static void init_irq_stacks(void)
{
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