workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted

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>

1 files changed, 174 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/debugfs-hisi-zip b/Documentation/ABI/testing/debugfs-hisi-zip
new file mode 100644
index 000000000..46bf47bf6
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-hisi-zip
@@ -0,0 +1,174 @@
+What:		/sys/kernel/debug/hisi_zip/<bdf>/comp_core[01]/regs
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump of compression cores related debug registers.
+		Only available for PF.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/decomp_core[0-5]/regs
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump of decompression cores related debug registers.
+		Only available for PF.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/clear_enable
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	Compression/decompression core debug registers read clear
+		control. 1 means enable register read clear, otherwise 0.
+		Writing to this file has no functional effect, only enable or
+		disable counters clear after reading of these registers.
+		Only available for PF.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/current_qm
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	One ZIP controller has one PF and multiple VFs, each function
+		has a QM. Select the QM which below qm refers to.
+		Only available for PF.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/alg_qos
+Date:		Jun 2021
+Contact:	linux-crypto@vger.kernel.org
+Description:	The <bdf> is related the function for PF and VF.
+		ZIP driver supports to configure each function's QoS, the driver
+		supports to write <bdf> value to alg_qos in the host. Such as
+		"echo <bdf> value > alg_qos". The qos value is 1~1000, means
+		1/1000~1000/1000 of total QoS. The driver reading alg_qos to
+		get related QoS in the host and VM, Such as "cat alg_qos".
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/dev_usage
+Date:		Mar 2026
+Contact:	linux-crypto@vger.kernel.org
+Description:	Query the real-time bandwidth usage of device.
+		Returns the bandwidth usage of each channel on the device.
+		The returned number is in percentage.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/regs
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump of QM related debug registers.
+		Available for PF and VF in host. VF in guest currently only
+		has one debug register.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/current_q
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	One QM may contain multiple queues. Select specific queue to
+		show its debug registers in above regs.
+		Only available for PF.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/clear_enable
+Date:		Nov 2018
+Contact:	linux-crypto@vger.kernel.org
+Description:	QM debug registers(regs) read clear control. 1 means enable
+		register read clear, otherwise 0.
+		Writing to this file has no functional effect, only enable or
+		disable counters clear after reading of these registers.
+		Only available for PF.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/err_irq
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the number of invalid interrupts for
+		QM task completion.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/aeq_irq
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the number of QM async event queue interrupts.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/abnormal_irq
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the number of interrupts for QM abnormal event.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/create_qp_err
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the number of queue allocation errors.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/mb_err
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the number of failed QM mailbox commands.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/status
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the status of the QM.
+		Two states: work, stop.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/diff_regs
+Date:		Mar 2022
+Contact:	linux-crypto@vger.kernel.org
+Description:	QM debug registers(regs) read hardware register value. This
+		node is used to show the change of the qm registers value. This
+		node can be help users to check the change of register values.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/qm_state
+Date:		Jan 2024
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the state of the device.
+		0: busy, 1: idle.
+		Only available for PF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/dev_timeout
+Date:		Feb 2024
+Contact:	linux-crypto@vger.kernel.org
+Description:	Set the wait time when stop queue fails. Available for both PF
+		and VF, and take no other effect on ZIP.
+		0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/qm/dev_state
+Date:		Feb 2024
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the stop queue status of the QM. The default value is 0,
+		if dev_timeout is set, when stop queue fails, the dev_state
+		will return non-zero value. Available for both PF and VF,
+		and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/diff_regs
+Date:		Mar 2022
+Contact:	linux-crypto@vger.kernel.org
+Description:	ZIP debug registers(regs) read hardware register value. This
+		node is used to show the change of the registers value. this
+		node can be help users to check the change of register values.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the total number of sent requests.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/recv_cnt
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the total number of received requests.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_busy_cnt
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the total number of requests received
+		with returning busy.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:		/sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/err_bd_cnt
+Date:		Apr 2020
+Contact:	linux-crypto@vger.kernel.org
+Description:	Dump the total number of BD type error requests
+		to be received.
+		Available for both PF and VF, and take no other effect on ZIP.
+
+What:           /sys/kernel/debug/hisi_zip/<bdf>/cap_regs
+Date:           Oct 2024
+Contact:        linux-crypto@vger.kernel.org
+Description:    Dump the values of the qm and zip capability bit registers and
+                support the query of device specifications to facilitate fault locating.
+                Available for both PF and VF, and take no other effect on ZIP.