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From: Thomas Gleixner <tglx@linutronix.de>
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To: Huacai Chen <chenhuacai@gmail.com>
Cc: Huacai Chen <chenhuacai@loongson.cn>, loongarch@lists.linux.dev,
 linux-kernel@vger.kernel.org, Xuefeng Li <lixuefeng@loongson.cn>, Jiaxun
 Yang <jiaxun.yang@flygoat.com>, stable@vger.kernel.org, Yinbo Zhu
 <zhuyinbo@loongson.cn>
Subject: Re: [PATCH] irqchip/loongson-liointc: Support to set
 IRQ_TYPE_EDGE_BOTH
In-Reply-To: <CAAhV-H5sO0x1EkWks5QZ8ah-stB7JbDk6eFFeeonXD6JT9fHAw@mail.gmail.com>
References: <20250402092500.514305-1-chenhuacai@loongson.cn>
 <87jz81uty3.ffs@tglx>
 <CAAhV-H5sO0x1EkWks5QZ8ah-stB7JbDk6eFFeeonXD6JT9fHAw@mail.gmail.com>
Date: Sun, 06 Apr 2025 12:18:16 +0200
Message-ID: <87bjt9wq3b.ffs@tglx>
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On Sun, Apr 06 2025 at 17:46, Huacai Chen wrote:
> On Thu, Apr 3, 2025 at 11:48=E2=80=AFPM Thomas Gleixner <tglx@linutronix.=
de> wrote:
>> But it won't trigger on both. So no, you cannot claim that this fixes
>> anything.
> Yes, it won't trigger on both (not perfect), but it allows drivers
> that request "both" work (better than fail to request), and there are

By some definition of 'work'. There is probably a good technical reason
why those drivers expect EDGE_BOTH to work correctly and otherwise fail
to load.

You completely fail to explain, why this hack actually 'works' and what
the implications are for such drivers.

> other irqchip drivers that do similar things.

Justifying bogosity with already existing bogosity is not a technical
argument.

Thanks,

        tglx