linux-kernel - [tip: irq/core] irqdomain: Fix up const problem in irq_domain_set

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Message-ID: <176610146385.510.2004806637905660684.tip-bot2@tip-bot2>
Date: Thu, 18 Dec 2025 23:44:23 -0000
From: "tip-bot2 for Greg Kroah-Hartman" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
 Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
 linux-kernel@...r.kernel.org, maz@...nel.org
Subject:
 [tip: irq/core] irqdomain: Fix up const problem in irq_domain_set_name()

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     90876d9b37a0db170d5998c6c903eab2d56fd7cb
Gitweb:        https://git.kernel.org/tip/90876d9b37a0db170d5998c6c903eab2d56fd7cb
Author:        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
AuthorDate:    Wed, 17 Dec 2025 13:46:32 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Fri, 19 Dec 2025 00:39:39 +01:00

irqdomain: Fix up const problem in irq_domain_set_name()

In irq_domain_set_name() a const pointer is passed in, and then the
const is "lost" when container_of() is called.  Fix this up by properly
preserving the const pointer attribute when container_of() is used to
enforce the fact that this pointer should not have anything at it
changed.

Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://patch.msgid.link/2025121731-facing-unhitched-63ae@gregkh
---
 kernel/irq/irqdomain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 2652c4c..094e891 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -187,7 +187,7 @@ static int irq_domain_set_name(struct irq_domain *domain, const struct irq_domai
 	const struct fwnode_handle *fwnode = info->fwnode;
 
 	if (is_fwnode_irqchip(fwnode)) {
-		struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
+		const struct irqchip_fwid *fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
 
 		/*
 		 * The name_suffix is only intended to be used to avoid a name