5.15-stable review patch. If anyone has any objections, please let me know.
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From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
commit 97e32381d0fc6c2602a767b0c46e15eb2b75971d upstream.
Linux kernel uses thermal zone node name during registering thermal zones and has a hard-coded limit of 20 characters, including terminating NUL byte. The bindings expect node names to finish with '-thermal' which is eight bytes long, thus we have only 11 characters for the reset of the node name (thus 10 for the pattern after leading fixed character).
Reported-by: Rob Herring robh@kernel.org Closes: https://lore.kernel.org/all/CAL_JsqKogbT_4DPd1n94xqeHaU_J8ve5K09WOyVsRX3jxxU... Fixes: 1202a442a31f ("dt-bindings: thermal: Add yaml bindings for thermal zones") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Link: https://lore.kernel.org/r/20240702145248.47184-1-krzysztof.kozlowski@linaro.... Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/devicetree/bindings/thermal/thermal-zones.yaml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -49,7 +49,10 @@ properties: to take when the temperature crosses those thresholds.
patternProperties: - "^[a-zA-Z][a-zA-Z0-9\-]{1,12}-thermal$": + # Node name is limited in size due to Linux kernel requirements - 19 + # characters in total (see THERMAL_NAME_LENGTH, including terminating NUL + # byte): + "^[a-zA-Z][a-zA-Z0-9\-]{1,10}-thermal$": type: object description: Each thermal zone node contains information about how frequently it