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Date: Wed, 10 Aug 2022 12:01:14 +0100
From: Marc Zyngier <maz@kernel.org>
To: Huacai Chen <chenhuacai@loongson.cn>
Cc: Huacai Chen <chenhuacai@kernel.org>, Thomas Gleixner
 <tglx@linutronix.de>, loongarch@lists.linux.dev, Xuefeng Li
 <lixuefeng@loongson.cn>, Guo Ren <guoren@kernel.org>, Xuerui Wang
 <kernel@xen0n.name>, Jiaxun Yang <jiaxun.yang@flygoat.com>,
 linux-kernel@vger.kernel.org
Subject: Re: [PATCH] LoongArch: Fix the !CONFIG_SMP build for irqchip drivers
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On 2022-08-10 11:31, Huacai Chen wrote:
> 1, Guard get_ipi_irq() in CONFIG_SMP;
> 2, Define cpu_logical_map() for the EIOINTC driver;
> 3, Make eiointc_set_irq_affinity() return early for !CONFIG_SMP.
> 
> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

Frankly, the real question is why do you even bother? As far as
I can tell, LoongArch has no UP system.

arm64 crossed that bridge a long time ago, and we never looked
back, because these systems hardly exist.

I'd rather you simply have a CONFIG_SMP always set to 'y', and
be done with it forever.

         M.
-- 
Jazz is not dead. It just smells funny...