From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001
From: Breno Leitao <leitao@debian.org>
Date: Wed, 5 Aug 2026 07:52:36 -0700
Subject: workqueue: skip the node_nr_active update for non-unbound workqueues

apply_wqattrs_commit() updates node_nr_active->max unconditionally.
wq->node_nr_active[] is only allocated for unbound workqueues, so guard
the call before per-cpu workqueues start using this path.

No functional change: only unbound workqueues reach apply_wqattrs_*()
today.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 lib/irq_regs.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 lib/irq_regs.c

(limited to 'lib/irq_regs.c')

diff --git a/lib/irq_regs.c b/lib/irq_regs.c
new file mode 100644
index 000000000..0d545a930
--- /dev/null
+++ b/lib/irq_regs.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* saved per-CPU IRQ register pointer
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+#include <linux/export.h>
+#include <linux/percpu.h>
+#include <asm/irq_regs.h>
+
+#ifndef ARCH_HAS_OWN_IRQ_REGS
+DEFINE_PER_CPU(struct pt_regs *, __irq_regs);
+EXPORT_PER_CPU_SYMBOL(__irq_regs);
+#endif
-- 
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