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>

3 files changed, 161 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/peci/nuvoton,npcm-peci.yaml b/Documentation/devicetree/bindings/peci/nuvoton,npcm-peci.yaml
new file mode 100644
index 000000000..087e02a9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/peci/nuvoton,npcm-peci.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/peci/nuvoton,npcm-peci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton PECI Bus
+
+maintainers:
+  - Tomer Maimon <tmaimon77@gmail.com>
+
+allOf:
+  - $ref: peci-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,npcm750-peci
+      - nuvoton,npcm845-peci
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    description:
+      Clock source for PECI controller. Should reference the APB clock.
+    maxItems: 1
+
+  cmd-timeout-ms:
+    minimum: 1
+    maximum: 1000
+    default: 1000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    peci-controller@f0100000 {
+      compatible = "nuvoton,npcm750-peci";
+      reg = <0xf0100000 0x200>;
+      interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&clk NPCM7XX_CLK_APB3>;
+      cmd-timeout-ms = <1000>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.yaml b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
new file mode 100644
index 000000000..b01e0c8b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/peci/peci-aspeed.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed PECI Bus
+
+maintainers:
+  - Iwona Winiarska <iwona.winiarska@intel.com>
+  - Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
+
+allOf:
+  - $ref: peci-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - aspeed,ast2400-peci
+      - aspeed,ast2500-peci
+      - aspeed,ast2600-peci
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    description:
+      Clock source for PECI controller. Should reference the external
+      oscillator clock.
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  cmd-timeout-ms:
+    minimum: 1
+    maximum: 1000
+    default: 1000
+
+  clock-frequency:
+    description:
+      The desired operation frequency of PECI controller in Hz.
+    minimum: 2000
+    maximum: 2000000
+    default: 1000000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/ast2600-clock.h>
+    peci-controller@1e78b000 {
+      compatible = "aspeed,ast2600-peci";
+      reg = <0x1e78b000 0x100>;
+      interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
+      resets = <&syscon ASPEED_RESET_PECI>;
+      cmd-timeout-ms = <1000>;
+      clock-frequency = <1000000>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/peci/peci-controller.yaml b/Documentation/devicetree/bindings/peci/peci-controller.yaml
new file mode 100644
index 000000000..d7853291b
--- /dev/null
+++ b/Documentation/devicetree/bindings/peci/peci-controller.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/peci/peci-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic for PECI
+
+maintainers:
+  - Iwona Winiarska <iwona.winiarska@intel.com>
+
+description:
+  PECI (Platform Environment Control Interface) is an interface that provides a
+  communication channel from Intel processors and chipset components to external
+  monitoring or control devices.
+
+properties:
+  $nodename:
+    pattern: "^peci-controller(@.*)?$"
+
+  cmd-timeout-ms:
+    description:
+      Command timeout in units of ms.
+
+additionalProperties: true
+
+examples:
+  - |
+    peci-controller@1e78b000 {
+      reg = <0x1e78b000 0x100>;
+      cmd-timeout-ms = <500>;
+    };
+...