From a75ac2693d734d20724f0e10e039ca85f1fcfc4e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 3 Apr 2024 16:35:37 +0200
Subject: [PATCH] Revert "workqueue: Don't call cpumask_test_cpu() with -1 CPU
 in wq_update_node_max_active()"

This reverts commit 7df62b8cca38aa452b508b477b16544cba615084 which is
commit 15930da42f8981dc42c19038042947b475b19f47 upstream.

The workqueue patches backported to 6.6.y caused some reported
regressions, so revert them for now.

Reported-by: Thorsten Leemhuis <regressions@leemhuis.info>
Cc: Tejun Heo <tj@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Audra Mitchell <audra@redhat.com>
Link: https://lore.kernel.org/all/ce4c2f67-c298-48a0-87a3-f933d646c73b@leemhuis.info/
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/workqueue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 7d231bbd16593..b2975e44dffa9 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1500,7 +1500,7 @@ static void wq_update_node_max_active(struct workqueue_struct *wq, int off_cpu)
 
 	lockdep_assert_held(&wq->mutex);
 
-	if (off_cpu >= 0 && !cpumask_test_cpu(off_cpu, effective))
+	if (!cpumask_test_cpu(off_cpu, effective))
 		off_cpu = -1;
 
 	total_cpus = cpumask_weight_and(effective, cpu_online_mask);