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由 Ard Biesheuvel 提交于
The various CPU feature registers consist of 4-bit blocks that represent signed quantities, whose positive values represent incremental features, and whose negative values are reserved. To improve forward compatibility, update the feature detection code to take possible future higher values into account, but ignore negative values. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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