From: Huacai Chen chenhuacai@loongson.cn
[ Upstream commit 274ea3563e5ab9f468c15bfb9d2492803a66d9be ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- arch/loongarch/include/asm/hw_irq.h | 2 ++ arch/loongarch/kernel/irq.c | 3 --- 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 af4f4e8fbd858..8156ffb674159 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 f4991c03514f4..adac8fcbb2aca 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);