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authorHuacai Chen <chenhuacai@loongson.cn>2024-08-26 23:11:32 +0800
committerHuacai Chen <chenhuacai@loongson.cn>2024-08-26 23:11:32 +0800
commit274ea3563e5ab9f468c15bfb9d2492803a66d9be (patch)
treef2b2e7ebf0d17e6ec63a9ba208bc49b5183ec461
parent58aec91efb93338d1cc7acc0a93242613a2a4e5f (diff)
LoongArch: Define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE
Currently we call irq_set_noprobe() in a loop for all IRQs, but indeed it only works for IRQs below NR_IRQS_LEGACY because at init_IRQ() only legacy interrupts have been allocated. Instead, we can define ARCH_IRQ_INIT_FLAGS as IRQ_NOPROBE in asm/hwirq.h and the core will automatically set the flag for all interrupts. Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
-rw-r--r--arch/loongarch/include/asm/hw_irq.h2
-rw-r--r--arch/loongarch/kernel/irq.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/loongarch/include/asm/hw_irq.h b/arch/loongarch/include/asm/hw_irq.h
index af4f4e8fbd85..8156ffb67415 100644
--- a/arch/loongarch/include/asm/hw_irq.h
+++ b/arch/loongarch/include/asm/hw_irq.h
@@ -9,6 +9,8 @@
extern atomic_t irq_err_count;
+#define ARCH_IRQ_INIT_FLAGS IRQ_NOPROBE
+
/*
* interrupt-retrigger: NOP for now. This may not be appropriate for all
* machines, we'll see ...
diff --git a/arch/loongarch/kernel/irq.c b/arch/loongarch/kernel/irq.c
index f4991c03514f..adac8fcbb2ac 100644
--- a/arch/loongarch/kernel/irq.c
+++ b/arch/loongarch/kernel/irq.c
@@ -102,9 +102,6 @@ void __init init_IRQ(void)
mp_ops.init_ipi();
#endif
- for (i = 0; i < NR_IRQS; i++)
- irq_set_noprobe(i);
-
for_each_possible_cpu(i) {
page = alloc_pages_node(cpu_to_node(i), GFP_KERNEL, order);