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authorMarc Zyngier <marc.zyngier@arm.com>2014-08-26 12:03:18 +0200
committerJason Cooper <jason@lakedaemon.net>2014-09-03 14:58:36 +0200
commita71b092a9c68685a270ebdde7b5986ba8787e575 (patch)
tree2a8ff7d41e15788bfb89b6c2d8a28aefedb6c972
parentarm64: Convert handle_IRQ to use __handle_domain_irq (diff)
downloadlinux-a71b092a9c68685a270ebdde7b5986ba8787e575.tar.xz
linux-a71b092a9c68685a270ebdde7b5986ba8787e575.zip
ARM: 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> Link: https://lkml.kernel.org/r/1409047421-27649-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/arm/kernel/irq.c19
2 files changed, 2 insertions, 18 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c49a775937db..5918d40bb12e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -24,6 +24,7 @@ config ARM
select GENERIC_SMP_IDLE_THREAD
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
+ select HANDLE_DOMAIN_IRQ
select HARDIRQS_SW_RESEND
select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 2c4257604513..0509d07c96ab 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -65,24 +65,7 @@ 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)) {
- if (printk_ratelimit())
- printk(KERN_WARNING "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);
}
/*