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>
---
 tools/testing/kunit/configs/all_tests.config    | 61 +++++++++++++++++++++++++
 tools/testing/kunit/configs/arch_uml.config     |  7 +++
 tools/testing/kunit/configs/coverage_uml.config | 11 +++++
 tools/testing/kunit/configs/default.config      |  3 ++
 4 files changed, 82 insertions(+)
 create mode 100644 tools/testing/kunit/configs/all_tests.config
 create mode 100644 tools/testing/kunit/configs/arch_uml.config
 create mode 100644 tools/testing/kunit/configs/coverage_uml.config
 create mode 100644 tools/testing/kunit/configs/default.config

(limited to 'tools/testing/kunit/configs')

diff --git a/tools/testing/kunit/configs/all_tests.config b/tools/testing/kunit/configs/all_tests.config
new file mode 100644
index 000000000..bccc2c771
--- /dev/null
+++ b/tools/testing/kunit/configs/all_tests.config
@@ -0,0 +1,61 @@
+# This config enables as many tests as possible under UML.
+# It is intended for use in continuous integration systems and similar for
+# automated testing of as much as possible.
+# The config is manually maintained, though it uses KUNIT_ALL_TESTS=y to enable
+# any tests whose dependencies are already satisfied. Please feel free to add
+# more options if they any new tests.
+
+CONFIG_KUNIT=y
+CONFIG_KUNIT_EXAMPLE_TEST=y
+CONFIG_KUNIT_ALL_TESTS=y
+
+CONFIG_FORTIFY_SOURCE=y
+
+CONFIG_IIO=y
+
+CONFIG_EXT4_FS=y
+
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+
+CONFIG_PCI=y
+CONFIG_USB4=y
+CONFIG_I2C=y
+
+CONFIG_NET=y
+CONFIG_MCTP=y
+CONFIG_MCTP_FLOWS=y
+
+CONFIG_INET=y
+CONFIG_MPTCP=y
+
+CONFIG_NETDEVICES=y
+CONFIG_WLAN=y
+CONFIG_CFG80211=y
+CONFIG_MAC80211=y
+CONFIG_WLAN_VENDOR_INTEL=y
+CONFIG_IWLWIFI=y
+
+CONFIG_DAMON=y
+CONFIG_DAMON_VADDR=y
+CONFIG_DAMON_PADDR=y
+
+CONFIG_REGMAP_BUILD=y
+
+CONFIG_AUDIT=y
+
+CONFIG_CRYPTO_LIB_ENABLE_ALL_FOR_KUNIT=y
+
+CONFIG_PRIME_NUMBERS=y
+
+CONFIG_CRC_ENABLE_ALL_FOR_KUNIT=y
+
+CONFIG_SECURITY=y
+CONFIG_SECURITY_APPARMOR=y
+CONFIG_SECURITY_LANDLOCK=y
+
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_SOC=y
+CONFIG_SND_SOC_TOPOLOGY_BUILD=y
+CONFIG_SND_SOC_CS35L56_I2C=y
diff --git a/tools/testing/kunit/configs/arch_uml.config b/tools/testing/kunit/configs/arch_uml.config
new file mode 100644
index 000000000..28edf816a
--- /dev/null
+++ b/tools/testing/kunit/configs/arch_uml.config
@@ -0,0 +1,7 @@
+# Config options which are added to UML builds by default
+
+# Enable pci, as a lot of tests require it.
+CONFIG_KUNIT_UML_PCI=y
+
+# Enable FORTIFY_SOURCE for wider checking.
+CONFIG_FORTIFY_SOURCE=y
diff --git a/tools/testing/kunit/configs/coverage_uml.config b/tools/testing/kunit/configs/coverage_uml.config
new file mode 100644
index 000000000..bacb77664
--- /dev/null
+++ b/tools/testing/kunit/configs/coverage_uml.config
@@ -0,0 +1,11 @@
+# This config fragment enables coverage on UML, which is different from the
+# normal gcov used in other arches (no debugfs).
+# Example usage:
+# ./tools/testing/kunit/kunit.py run \
+#   --kunitconfig=tools/testing/kunit/configs/all_tests_uml.config \
+#   --kunitconfig=tools/testing/kunit/configs/coverage_uml.config
+
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_GCOV=y
diff --git a/tools/testing/kunit/configs/default.config b/tools/testing/kunit/configs/default.config
new file mode 100644
index 000000000..e67af7b9f
--- /dev/null
+++ b/tools/testing/kunit/configs/default.config
@@ -0,0 +1,3 @@
+CONFIG_KUNIT=y
+CONFIG_KUNIT_EXAMPLE_TEST=y
+CONFIG_KUNIT_ALL_TESTS=y
-- 
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