linux-kernel - Re: [PATCH v2] of/irq: Ignore interrupt parent for nodes without interrupts

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Message-Id: 
 <176613181379.3684357.14380947909185500489.git-patchwork-notify@kernel.org>
Date: Fri, 19 Dec 2025 08:10:13 +0000
From: patchwork-bot+linux-riscv@...nel.org
To: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-riscv@...ts.infradead.org, robh@...nel.org, saravanak@...gle.com,
 krzk+dt@...nel.org, conor+dt@...nel.org, pjw@...nel.org, palmer@...belt.com,
 aou@...s.berkeley.edu, alex@...ti.fr, samuel@...lland.org, maz@...nel.org,
 prabhakar.mahadev-lad.rj@...renesas.com, magnus.damm@...il.com,
 devicetree@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] of/irq: Ignore interrupt parent for nodes without
 interrupts

Hello:

This patch was applied to riscv/linux.git (fixes)
by Rob Herring (Arm) <robh@...nel.org>:

On Fri, 14 Nov 2025 11:47:54 +0100 you wrote:
> The Devicetree Specification states:
> 
>     The root of the interrupt tree is determined when traversal of the
>     interrupt tree reaches an interrupt controller node without an
>     interrupts property and thus no explicit interrupt parent.
> 
> However, of_irq_init() gratuitously assumes that a node without
> interrupts has an actual interrupt parent if it finds an
> interrupt-parent property higher up in the device tree.  Hence when such
> a property is present (e.g. in the root node), the root interrupt
> controller may not be detected as such, causing a panic:
> 
> [...]

Here is the summary with links:
  - [v2] of/irq: Ignore interrupt parent for nodes without interrupts
    https://git.kernel.org/riscv/c/1b1f04d8271e

You are awesome, thank you!
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