From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao 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 Signed-off-by: Tejun Heo --- Documentation/driver-api/auxiliary_bus.rst | 49 ++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/driver-api/auxiliary_bus.rst (limited to 'Documentation/driver-api/auxiliary_bus.rst') diff --git a/Documentation/driver-api/auxiliary_bus.rst b/Documentation/driver-api/auxiliary_bus.rst new file mode 100644 index 000000000..b236de773 --- /dev/null +++ b/Documentation/driver-api/auxiliary_bus.rst @@ -0,0 +1,49 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +.. _auxiliary_bus: + +============= +Auxiliary Bus +============= + +.. kernel-doc:: drivers/base/auxiliary.c + :doc: PURPOSE + +When Should the Auxiliary Bus Be Used +===================================== + +.. kernel-doc:: drivers/base/auxiliary.c + :doc: USAGE + + +Auxiliary Device Creation +========================= + +.. kernel-doc:: include/linux/auxiliary_bus.h + :identifiers: auxiliary_device + +.. kernel-doc:: drivers/base/auxiliary.c + :identifiers: auxiliary_device_init __auxiliary_device_add + +Auxiliary Device Memory Model and Lifespan +------------------------------------------ + +.. kernel-doc:: include/linux/auxiliary_bus.h + :doc: DEVICE_LIFESPAN + + +Auxiliary Drivers +================= + +.. kernel-doc:: include/linux/auxiliary_bus.h + :identifiers: auxiliary_driver module_auxiliary_driver + +.. kernel-doc:: drivers/base/auxiliary.c + :identifiers: __auxiliary_driver_register auxiliary_driver_unregister + +Example Usage +============= + +.. kernel-doc:: drivers/base/auxiliary.c + :doc: EXAMPLE + -- cgit v1.3.1