linux-kernel - Re: [PATCH v11 2/7] LoongArch: Define ARCH_IRQ_INIT_FLAGS as IRQ

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Message-ID: <87a5h3gn28.ffs@tglx>
Date: Fri, 23 Aug 2024 19:34:55 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Tianyang Zhang <zhangtianyang@...ngson.cn>, corbet@....net,
 alexs@...nel.org, chenhuacai@...nel.org, kernel@...0n.name,
 jiaxun.yang@...goat.com, gaoliang@...ngson.cn, wangliupu@...ngson.cn,
 lvjianmin@...ngson.cn, zhangtianyang@...ngson.cn, yijun@...ngson.cn,
 mhocko@...e.com, akpm@...ux-foundation.org, dianders@...omium.org,
 maobibo@...ngson.cn, xry111@...111.site, zhaotianrui@...ngson.cn,
 nathan@...nel.org, yangtiezhu@...ngson.cn, zhoubinbin@...ngson.cn
Cc: loongarch@...ts.linux.dev, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, Huacai Chen <chenhuacai@...ngson.cn>
Subject: Re: [PATCH v11 2/7] LoongArch: Define ARCH_IRQ_INIT_FLAGS as
 IRQ_NOPROBE

On Fri, Aug 23 2024 at 18:33, Tianyang Zhang wrote:
> From: Huacai Chen <chenhuacai@...ngson.cn>
>
> 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.
>
> Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
> Signed-off-by: Tianyang Zhang <zhangtianyang@...ngson.cn>

Reviewed-by: Thomas Gleixner <tglx@...utronix.de>